diff --git a/src/test/java/org/ballerinalang/completion/BallerinaCompletionTest.java b/src/test/java/org/ballerinalang/completion/BallerinaCompletionTest.java
index 370ea8dc..98164e4b 100644
--- a/src/test/java/org/ballerinalang/completion/BallerinaCompletionTest.java
+++ b/src/test/java/org/ballerinalang/completion/BallerinaCompletionTest.java
@@ -25,204 +25,10 @@
 
 public class BallerinaCompletionTest extends BallerinaCompletionTestBase {
 
-    private static final List<String> FILE_LEVEL_KEYWORDS = Arrays.asList("public", "package", "import", "const",
-            "service", "function", "connector", "struct", "typemapper", "annotation", "enum");
-    private static final List<String> DATA_TYPES = Arrays.asList("boolean", "int", "float", "string", "blob");
-    private static final List<String> REFERENCE_TYPES = Arrays.asList("message", "map", "xml", "json", "datatable");
-    private static final List<String> XMLNS_TYPE = Collections.singletonList("xmlns");
-    private static final List<String> OTHER_TYPES = Arrays.asList("any", "type", "var");
-    private static final List<String> COMMON_KEYWORDS = Arrays.asList("if", "else", "fork", "join", "timeout",
-            "worker", "transform", "transaction", "failed", "aborted", "committed", "abort", "try", "catch", "finally",
-            "iterate", "while", "next", "break", "throw");
-    private static final List<String> VALUE_KEYWORDS = Arrays.asList("true", "false", "null");
-    private static final List<String> FUNCTION_LEVEL_KEYWORDS = Collections.singletonList("return");
-
     private static final String UTILS_PACKAGE_NAME = "org/test/utils.bal";
     private static final String SAMPLE_UTIL_FUNCTIONS = "package org.test; public function getA(){} public function " +
             "getB(){}";
 
-    @Override
-    protected String getTestDataPath() {
-        return getTestDataPath("completion");
-    }
-
-    /**
-     * Test file level lookups.
-     */
-    public void testEmptyFile() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(FILE_LEVEL_KEYWORDS);
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        doTest("<caret>", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testEmptyFilePackageKeyword() {
-        doTest("p<caret>", "public", "import", "package", "typemapper", "map", "type");
-    }
-
-    public void testEmptyFileImportKeyword() {
-        doTest("i<caret>", "public", "annotation", "function", "import", "service", "int", "string");
-    }
-
-    public void testEmptyFileWithSpaceBeforeCaret() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(FILE_LEVEL_KEYWORDS);
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        doTest("\n<caret>", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testEmptyFileWithSpaceBeforeCaretPackageKeyword() {
-        doTest("\np<caret>", "public", "import", "package", "typemapper", "map", "type");
-    }
-
-    public void testEmptyFileWithSpaceBeforeCaretImportKeyword() {
-        doTest("\ni<caret>", "public", "annotation", "function", "import", "service", "int", "string");
-    }
-
-    public void testEmptyFileWithSpaceAfterCaret() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(FILE_LEVEL_KEYWORDS);
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        doTest("<caret>\n", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testEmptyFileWithSpaceAfterCaretPackageKeyword() {
-        doTest("p<caret>\n", "public", "import", "package", "typemapper", "map", "type");
-    }
-
-    public void testEmptyFileWithSpaceAfterCaretImportKeyword() {
-        doTest("i<caret>\n", "public", "annotation", "function", "import", "service", "int", "string");
-    }
-
-    public void testEmptyFileWithSpaces() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(FILE_LEVEL_KEYWORDS);
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        doTest("\n<caret>\n", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testEmptyFileWithSpacesPackageKeyword() {
-        doTest("\np<caret>\n", "public", "import", "package", "typemapper", "map", "type");
-    }
-
-    public void testEmptyFileWithSpacesImportKeyword() {
-        doTest("\ni<caret>\n", "public", "annotation", "function", "import", "service", "int", "string");
-    }
-
-    public void testImportAfterPackage() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        expectedLookups.add("public");
-        expectedLookups.add("import");
-        expectedLookups.add("const");
-        expectedLookups.add("service");
-        expectedLookups.add("function");
-        expectedLookups.add("connector");
-        expectedLookups.add("struct");
-        expectedLookups.add("typemapper");
-        expectedLookups.add("annotation");
-        expectedLookups.add("enum");
-        doTest("package test; \n<caret>\n", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testImportAfterPackagePartialIdentifier() {
-        doTest("package test; \ni<caret>\n", "public", "annotation", "function", "import", "service", "int", "string");
-    }
-
-    public void testImportAfterPackageBeforeFunction() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        expectedLookups.add("public");
-        expectedLookups.add("import");
-        expectedLookups.add("const");
-        expectedLookups.add("service");
-        expectedLookups.add("function");
-        expectedLookups.add("connector");
-        expectedLookups.add("struct");
-        expectedLookups.add("typemapper");
-        expectedLookups.add("annotation");
-        expectedLookups.add("enum");
-        doTest("package test; \n<caret>\nfunction A(){}", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testImportAfterPackageBeforeFunctionPartialIdentifier() {
-        doTest("package test; \ni<caret>\nfunction A(){}", "public", "annotation", "function", "import", "service",
-                "int", "string");
-    }
-
-    public void testPackageBeforeImport() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(FILE_LEVEL_KEYWORDS);
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        doTest("<caret>\nimport test; \nfunction A(){}", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testPackageBeforeImportPartialIdentifier() {
-        doTest("p<caret>\nimport test; \nfunction A(){}", "public", "import", "package", "typemapper", "map", "type");
-    }
-
-    public void testImportBeforeImport() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(FILE_LEVEL_KEYWORDS);
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        doTest("<caret>\nimport test; \nfunction A(){}", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testImportBeforeImportPartialIdentifier() {
-        doTest("i<caret>\nimport test; \nfunction A(){}", "public", "annotation", "function", "import", "service",
-                "int", "string");
-    }
-
-    public void testImportAfterImport() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        expectedLookups.add("public");
-        expectedLookups.add("import");
-        expectedLookups.add("const");
-        expectedLookups.add("service");
-        expectedLookups.add("function");
-        expectedLookups.add("connector");
-        expectedLookups.add("struct");
-        expectedLookups.add("typemapper");
-        expectedLookups.add("annotation");
-        expectedLookups.add("enum");
-        expectedLookups.add("test");
-        myFixture.addFileToProject("test/file.bal", "string s = \"\";");
-        doTest("import test; \n<caret> \nfunction A(){}", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testImportAfterImportPartialIdentifier() {
-        doTest("import test; \ni<caret> \nfunction A(){}", "public", "annotation", "function", "import", "service",
-                "int", "string");
-    }
-
     /**
      * Test package declaration level lookups.
      */
@@ -269,86 +75,6 @@ public void testLastLevelImportAutoCompletion() {
         doCheckResult("test.bal", "import org.t<caret>", "import org.test;", null);
     }
 
-    /**
-     * Test constant declaration level lookups.
-     */
-    public void testConstTypes() {
-        doTest("const <caret>", DATA_TYPES.toArray(new String[DATA_TYPES.size()]));
-    }
-
-    public void testConstIdentifier() {
-        doTest("const boolean <caret>");
-    }
-
-    public void testConstValues() {
-        doTest("const string NAME = <caret>", "true", "false", "null");
-    }
-
-    public void testConstantAnnotation() {
-        doCheckResult("test.bal", "@<caret> const string S=\"\";", null, '@');
-    }
-
-    public void testConstantAnnotationWithImports() {
-        myFixture.addFileToProject("org/test/file.bal", "string s = \"\";");
-        doCheckResult("test.bal", "import org.test; <caret> const string S=\"\";", null, '@', "test");
-    }
-
-    public void testConstantAnnotationWithImportsNoAnnotationDefinitions() {
-        myFixture.addFileToProject("org/test/file.bal", "function test(){}");
-        doCheckResult("test.bal", "import org.test; @test<caret> const string S=\"\";", null, ':');
-    }
-
-    public void testConstantAnnotationWithImportsWithNoMatchingAnnotationDefinitions() {
-        myFixture.addFileToProject("org/test/file.bal", "public annotation TEST attach service {}");
-        doCheckResult("test.bal", "import org.test; @test:<caret> const string S=\"\";", null, null);
-    }
-
-    public void testConstantAnnotationWithImportsWithMatchingAnnotationDefinitions() {
-        myFixture.addFileToProject("org/test/file.bal", "package org.test; public annotation TEST attach const {} " +
-                "annotation TEST2 attach resource {}");
-        doCheckResult("test.bal", "import org.test; @test:<caret> const string S=\"\";", null, null, "TEST");
-    }
-
-    public void testConstantAnnotationWithImportsWithMatchingAnnotationDefinitionsAutoCompletion() {
-        myFixture.addFileToProject("org/test/file.bal", "package org.test; public annotation TEST attach const {}");
-        doCheckResult("test.bal", "import org.test; @test:T<caret> const string S=\"\";",
-                "import org.test; @test:TEST {} const string S=\"\";", null);
-    }
-
-    public void testConstantAnnotationInCurrentPackageSameFile() {
-        doCheckResult("test.bal", "annotation TEST attach const {} <caret> const string S=\"\";", null, '@',
-                "TEST");
-    }
-
-    public void testConstantAnnotationInCurrentPackageSameFileAutoComplete() {
-        doCheckResult("test.bal", "annotation TEST attach const {} @T<caret> const string S=\"\";",
-                "annotation TEST attach const {} @TEST {} const string S=\"\";", null);
-    }
-
-    public void testConstantAnnotationInCurrentPackageDifferentFile() {
-        myFixture.addFileToProject("file.bal", "annotation TEST attach const {}");
-        doCheckResult("test.bal", "<caret> const string S=\"\";", null, '@', "TEST");
-    }
-
-    public void testConstantAnnotationInCurrentPackageDifferentFileAutoComplete() {
-        myFixture.addFileToProject("file.bal", "annotation TEST attach function {}");
-        doCheckResult("test.bal", "@T<caret> function A(){}", "@TEST {} function A(){}", null);
-    }
-
-    public void testConstantAnnotationInCurrentPackageDifferentFileHasMoreDefinitionsAfter() {
-        myFixture.addFileToProject("file.bal", "annotation TEST attach const {}");
-        doCheckResult("test.bal", "<caret> const string S=\"\"; service R{}", null, '@', "TEST");
-    }
-
-    public void testConstantAnnotationInCurrentPackageSameFileHasMoreDefinitionsAfter() {
-        doCheckResult("test.bal", "annotation TEST attach const {} <caret> const string S=\"\"; service R{}", null, '@',
-                "TEST");
-    }
-
-    public void testConstantTypesBeforeGlobalVarDef() {
-        doTest("const <caret>\n string test =\"\";", DATA_TYPES.toArray(new String[DATA_TYPES.size()]));
-    }
-
     /**
      * Test annotation level lookups.
      */
@@ -407,82 +133,6 @@ public void testAnnotationFieldValuesFromDifferentPackage() {
         doTest("import org.test; @test:TEST{key:<caret>} function A(){}", "true", "false", "null");
     }
 
-    /**
-     * Test global variables.
-     */
-    public void testGlobalVariableIdentifier() {
-        doTest("string <caret>");
-    }
-
-    public void testGlobalVariableFunctionValue() {
-        doCheckResult("test.bal", "string test = g<caret> function getValue()(string){return \"\";}",
-                "string test = getValue() function getValue()(string){return \"\";}", null);
-    }
-
-    public void testGlobalVariablePackageValue() {
-        myFixture.addFileToProject("org/test/file.bal", "function getValue()(string){return \"\";}");
-        doTest("import org.test; string s = <caret> ", "test", "true", "false", "null");
-    }
-
-    public void testGlobalVariablePackageValueCompletion() {
-        myFixture.addFileToProject("org/test/file.bal", "function getValue()(string){return \"\";}");
-        doCheckResult("test.bal", "import org.test; string s = te<caret> ", "import org.test; string s = test: ",
-                null);
-    }
-
-    public void testGlobalVariablePackageValueDifferentPackage() {
-        myFixture.addFileToProject("org/test/file.bal", "public function getValue()(string){return \"\";}");
-        doTest("import org.test; string s = test:<caret> ", "getValue");
-    }
-
-    public void testGlobalVariablePackageValueCompletionDifferentPackage() {
-        myFixture.addFileToProject("org/test/file.bal", "public function getValue()(string){return \"\";}");
-        doCheckResult("test.bal", "import org.test; string s = test:g<caret> ",
-                "import org.test; string s = test:getValue() ", null);
-    }
-
-    public void testGlobalVariablePackageValueDifferentFile() {
-        myFixture.addFileToProject("file.bal", "function getValue()(string){return \"\";}");
-        doTest("string s = <caret> ", "getValue", "true", "false", "null");
-    }
-
-    public void testGlobalVariablePackageValueDifferentFileCompletion() {
-        myFixture.addFileToProject("file.bal", "function getValue()(string){return \"\";}");
-        doCheckResult("test.bal", "string s = g<caret>", "string s = getValue()", null);
-    }
-
-    public void testGlobalVariableInSamePackageSameFile() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        expectedLookups.addAll(COMMON_KEYWORDS);
-        expectedLookups.addAll(FUNCTION_LEVEL_KEYWORDS);
-        expectedLookups.add("S");
-        expectedLookups.add("F");
-        doTest("string S=\"\"; function F(){ <caret> }", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testGlobalVariableInSamePackageDifferentFile() {
-        myFixture.addFileToProject("file.bal", "string S=\"\";");
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        expectedLookups.addAll(COMMON_KEYWORDS);
-        expectedLookups.addAll(FUNCTION_LEVEL_KEYWORDS);
-        expectedLookups.add("S");
-        expectedLookups.add("F");
-        doTest("function F(){ <caret> }", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testGlobalVariableInDifferentPackage() {
-        myFixture.addFileToProject("org/test/file.bal", "string S=\"\";");
-        doTest("import org.test; function F(){ test:<caret> }", "S");
-    }
-
     /**
      * Test function level lookups.
      */
@@ -1044,120 +694,6 @@ public void testStrings() {
         doTest("function test() { int a; system:println(\"<caret>\") }");
     }
 
-    /**
-     * Test function parameter level lookups.
-     */
-    public void testFunctionParamIdentifier() {
-        doTest("function test(string <caret>)");
-    }
-
-    public void testFunctionParamWithoutImports() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        doTest("function test(<caret>)", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testFunctionParamWithImports() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        expectedLookups.add("test");
-        myFixture.addFileToProject("org/test/file.bal", "string s = \"\";");
-        doTest("import org.test; function B(<caret>)", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testFunctionParamWithoutImportsAutoCompletion() {
-        doCheckResult("test.bal", "function test(st<caret>)", "function test(string )", null);
-    }
-
-    public void testFunctionParamWithImportsAutoCompletion() {
-        myFixture.addFileToProject("org/test/file.bal", "string s = \"\";");
-        doCheckResult("test.bal", "import org.test; function B(te<caret>)",
-                "import org.test; function B(test:)", null);
-    }
-
-    public void testCaretAfterFunctionParamWithoutImports() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        doTest("function test(string s,<caret>)", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testCaretBeforeFunctionParamWithoutImports() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        doTest("function test(<caret>string s)", expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testCaretAfterFunctionParamWithImports() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        expectedLookups.add("test");
-        myFixture.addFileToProject("org/test/file.bal", "string s = \"\";");
-        doTest("import org.test; function test(string s,<caret>)",
-                expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testCaretBeforeFunctionParamWithImports() {
-        List<String> expectedLookups = new LinkedList<>();
-        expectedLookups.addAll(DATA_TYPES);
-        expectedLookups.addAll(OTHER_TYPES);
-        expectedLookups.addAll(XMLNS_TYPE);
-        expectedLookups.addAll(REFERENCE_TYPES);
-        expectedLookups.add("test");
-        myFixture.addFileToProject("org/test/file.bal", "string s = \"\";");
-        doTest("import org.test; function test(<caret>string s)",
-                expectedLookups.toArray(new String[expectedLookups.size()]));
-    }
-
-    public void testParamAnnotationsPackage() {
-        myFixture.addFileToProject("org/test/file.bal", "annotation TEST attach parameter {}");
-        doTest("import org.test; function A(@<caret>)", "test");
-    }
-
-    public void testParamAnnotationsPackageAutoCompletion() {
-        myFixture.addFileToProject("org/test/file.bal", "annotation TEST attach parameter {}");
-        doCheckResult("test.bal", "import org.test; function A(@te<caret>)",
-                "import org.test; function A(@test:)", null);
-    }
-
-    public void testParamAnnotationsFromAPackage() {
-        myFixture.addFileToProject("org/test/file.bal", "public annotation TEST attach parameter {}");
-        doTest("import org.test; function A(@test:<caret>)", "TEST");
-    }
-
-    public void testParamAnnotationsFromAPackageAutoCompletion() {
-        myFixture.addFileToProject("org/test/file.bal", "public annotation TEST attach parameter {}");
-        doCheckResult("test.bal", "import org.test; function A(@test:T<caret>)",
-                "import org.test; function A(@test:TEST {})", null);
-    }
-
-    public void testPackageInvocationInParameter() {
-        myFixture.addFileToProject("org/test/file.bal", "public struct test {}");
-        doTest("import org.test; function A(test:<caret>)", "test");
-    }
-
-    public void testPackageInvocationInParameterAutoCompletion() {
-        myFixture.addFileToProject("org/test/file.bal", "public struct test {}");
-        doCheckResult("test.bal", "import org.test; function A(test:t<caret>)",
-                "import org.test; function A(test:test )", null);
-    }
-
-    // todo - query param annotations
-
     /**
      * Test service level lookups.
      */
@@ -1761,98 +1297,6 @@ public void testTypeMapperAnnotationInCurrentPackageSameFileHasMoreDefinitionsAf
                 "service R{}", null, '@', "TEST");
     }
 
-    /**
-     * Hidden templates.
-     */
-    public void testPackageKeyword() {
-        doCheckResult("test.bal", "package<caret>", "package ", null);
-    }
-
-    public void testImportKeyword() {
-        doCheckResult("test.bal", "import<caret>", "import ", null);
-    }
-
-    public void testIfKeyword() {
-        doCheckResult("test.bal", "function test(){ if<caret> }", "function test(){ if () {\n    \n} }", null);
-    }
-
-    public void testElseKeyword() {
-        doCheckResult("test.bal", "function test(){ else<caret> }", "function test(){ else {\n    \n} }", null);
-    }
-
-    public void testForkKeyword() {
-        doCheckResult("test.bal", "function test(){ fork<caret> }", "function test(){ fork {\n    \n} }", null);
-    }
-
-    public void testJoinKeyword() {
-        doCheckResult("test.bal", "function test(){ join<caret> }", "function test(){ join () () {\n    \n}" +
-                " }", null);
-    }
-
-    public void testTimeoutKeyword() {
-        doCheckResult("test.bal", "function test(){ timeout<caret> }", "function test(){ timeout () () " +
-                "{\n    \n} }", null);
-    }
-
-    public void testWorkerKeyword() {
-        doCheckResult("test.bal", "function test(){ worker<caret> }", "function test(){ worker  {\n    \n} }",
-                null);
-    }
-
-    public void testTransformKeyword() {
-        doCheckResult("test.bal", "function test(){ transform<caret> }", "function test(){ transform {\n    \n} }",
-                null);
-    }
-
-    public void testTransactionKeyword() {
-        doCheckResult("test.bal", "function test(){ transaction<caret> }", "function test(){ transaction {\n    \n} " +
-                "}", null);
-    }
-
-    public void testAbortedKeyword() {
-        doCheckResult("test.bal", "function test(){ aborted<caret> }", "function test(){ aborted {\n    \n} }", null);
-    }
-
-    public void testCommittedKeyword() {
-        doCheckResult("test.bal", "function test(){ committed<caret> }", "function test(){ committed {\n    \n} }",
-                null);
-    }
-
-    public void testTryKeyword() {
-        doCheckResult("test.bal", "function test(){ try<caret> }", "function test(){ try {\n    \n} }", null);
-    }
-
-    public void testCatchKeyword() {
-        doCheckResult("test.bal", "function test(){ catch<caret> }", "function test(){ catch () {\n    \n} }",
-                null);
-    }
-
-    public void testFinallyKeyword() {
-        doCheckResult("test.bal", "function test(){ finally<caret> }", "function test(){ finally {\n    \n} }", null);
-    }
-
-    public void testIterateKeyword() {
-        doCheckResult("test.bal", "function test(){ iterate<caret> }", "function test(){ iterate ( : ) {\n    \n} }",
-                null);
-    }
-
-    public void testWhileKeyword() {
-        doCheckResult("test.bal", "function test(){ while<caret> }", "function test(){ while () {\n    \n} }",
-                null);
-    }
-
-    public void testContinueKeyword() {
-        doCheckResult("test.bal", "function test(){ next<caret> }", "function test(){ next; }", null);
-    }
-
-    public void testBreakKeyword() {
-        doCheckResult("test.bal", "function test(){ break<caret> }", "function test(){ break; }", null);
-    }
-
-    public void testThrowKeyword() {
-        doCheckResult("test.bal", "function test(){ throw<caret> }", "function test(){ throw ; }", null);
-    }
-
     /**
      * Keywords in statements.
      */
diff --git a/src/test/java/org/ballerinalang/completion/BallerinaCompletionTestBase.java b/src/test/java/org/ballerinalang/completion/BallerinaCompletionTestBase.java
index 4af3e14b..8511098c 100644
--- a/src/test/java/org/ballerinalang/completion/BallerinaCompletionTestBase.java
+++ b/src/test/java/org/ballerinalang/completion/BallerinaCompletionTestBase.java
@@ -22,10 +22,33 @@
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
+import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 
 public abstract class BallerinaCompletionTestBase extends BallerinaCodeInsightFixtureTestCase {
 
+    static final List<String> FILE_LEVEL_KEYWORDS = Arrays.asList("public", "package", "import", "const",
+            "service", "function", "connector", "struct", "typemapper", "annotation", "enum");
+    static final List<String> DATA_TYPES = Arrays.asList("boolean", "int", "float", "string", "blob");
+    static final List<String> REFERENCE_TYPES = Arrays.asList("message", "map", "xml", "json", "datatable");
+    static final List<String> XMLNS_TYPE = Collections.singletonList("xmlns");
+    static final List<String> OTHER_TYPES = Arrays.asList("any", "type", "var");
+    static final List<String> COMMON_KEYWORDS = Arrays.asList("if", "else", "fork", "join", "timeout",
+            "worker", "transform", "transaction", "failed", "aborted", "committed", "abort", "try", "catch", "finally",
+            "iterate", "while", "next", "break", "throw");
+    static final List<String> VALUE_KEYWORDS = Arrays.asList("true", "false", "null");
+    static final List<String> FUNCTION_LEVEL_KEYWORDS = Collections.singletonList("return");
+
+    void doTestFile(String... expectedLookups) {
+        String testName = getTestName(false);
+        myFixture.configureByFile(testName + ".bal");
+        myFixture.complete(CompletionType.BASIC, 1);
+        List<String> lookupElementStrings = myFixture.getLookupElementStrings();
+        assertNotNull(lookupElementStrings);
+        assertSameElements(lookupElementStrings, expectedLookups);
+    }
+
     void doTest(String fileContent, String... expectedLookups) {
         if (fileContent != null) {
             myFixture.configureByText("test.bal", fileContent);
diff --git a/src/test/java/org/ballerinalang/completion/BallerinaConstantCompletionTest.java b/src/test/java/org/ballerinalang/completion/BallerinaConstantCompletionTest.java
new file mode 100644
index 00000000..2652fc07
--- /dev/null
+++ b/src/test/java/org/ballerinalang/completion/BallerinaConstantCompletionTest.java
@@ -0,0 +1,140 @@
+/*
+ *  Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.ballerinalang.completion;
+
+import java.util.LinkedList;
+import java.util.List;
+
+public class BallerinaConstantCompletionTest extends BallerinaCompletionTestBase {
+
+    /**
+     * Test constants.
+     */
+    public void testConstTypes() {
+        doTest("const <caret>", DATA_TYPES.toArray(new String[DATA_TYPES.size()]));
+    }
+
+    public void testConstIdentifier() {
+        doTest("const boolean <caret>");
+    }
+
+    public void testConstValues() {
+        doTest("const string NAME = <caret>", "true", "false", "null");
+    }
+
+    public void testConstantAnnotation() {
+        doCheckResult("test.bal", "@<caret> const string S=\"\";", null, '@');
+    }
+
+    public void testConstantAnnotationWithImports() {
+        myFixture.addFileToProject("org/test/file.bal", "string s = \"\";");
+        doCheckResult("test.bal", "import org.test; <caret> const string S=\"\";", null, '@', "test");
+    }
+
+    public void testConstantAnnotationWithImportsNoAnnotationDefinitions() {
+        myFixture.addFileToProject("org/test/file.bal", "function test(){}");
+        doCheckResult("test.bal", "import org.test; @test<caret> const string S=\"\";", null, ':');
+    }
+
+    public void testConstantAnnotationWithImportsWithNoMatchingAnnotationDefinitions() {
+        myFixture.addFileToProject("org/test/file.bal", "public annotation TEST attach service {}");
+        doCheckResult("test.bal", "import org.test; @test:<caret> const string S=\"\";", null, null);
+    }
+
+    public void testConstantAnnotationWithImportsWithMatchingAnnotationDefinitions() {
+        myFixture.addFileToProject("org/test/file.bal", "package org.test; public annotation TEST attach const {} " +
+                "annotation TEST2 attach resource {}");
+        doCheckResult("test.bal", "import org.test; @test:<caret> const string S=\"\";", null, null, "TEST");
+    }
+
+    public void testConstantAnnotationWithImportsWithMatchingAnnotationDefinitionsAutoCompletion() {
+        myFixture.addFileToProject("org/test/file.bal", "package org.test; public annotation TEST attach const {}");
+        doCheckResult("test.bal", "import org.test; @test:T<caret> const string S=\"\";",
+                "import org.test; @test:TEST {} const string S=\"\";", null);
+    }
+
+    public void testConstantAnnotationInCurrentPackageSameFile() {
+        doCheckResult("test.bal", "annotation TEST attach const {} <caret> const string S=\"\";", null, '@',
+                "TEST");
+    }
+
+    public void testConstantAnnotationInCurrentPackageSameFileAutoComplete() {
+        doCheckResult("test.bal", "annotation TEST attach const {} @T<caret> const string S=\"\";",
+                "annotation TEST attach const {} @TEST {} const string S=\"\";", null);
+    }
+
+    public void testConstantAnnotationInCurrentPackageDifferentFile() {
+        myFixture.addFileToProject("file.bal", "annotation TEST attach const {}");
+        doCheckResult("test.bal", "<caret> const string S=\"\";", null, '@', "TEST");
+    }
+
+    public void testConstantAnnotationInCurrentPackageDifferentFileAutoComplete() {
+        myFixture.addFileToProject("file.bal", "annotation TEST attach function {}");
+        doCheckResult("test.bal", "@T<caret> function A(){}", "@TEST {} function A(){}", null);
+    }
+
+    public void testConstantAnnotationInCurrentPackageDifferentFileHasMoreDefinitionsAfter() {
+        myFixture.addFileToProject("file.bal", "annotation TEST attach const {}");
+        doCheckResult("test.bal", "<caret> const string S=\"\"; service R{}", null, '@', "TEST");
+    }
+
+    public void testConstantAnnotationInCurrentPackageSameFileHasMoreDefinitionsAfter() {
+        doCheckResult("test.bal", "annotation TEST attach const {} <caret> const string S=\"\"; service R{}", null, '@',
+                "TEST");
+    }
+
+    public void testConstantTypesBeforeGlobalVarDef() {
+        doTest("const <caret>\n string test =\"\";", DATA_TYPES.toArray(new String[DATA_TYPES.size()]));
+    }
+
+    public void testConstantInSamePackageSameFile() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        expectedLookups.addAll(COMMON_KEYWORDS);
+        expectedLookups.addAll(FUNCTION_LEVEL_KEYWORDS);
+        expectedLookups.add("S");
+        expectedLookups.add("F");
+        doTest("string S=\"\"; function F(){ <caret> }", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testConstantInSamePackageDifferentFile() {
+        myFixture.addFileToProject("file.bal", "const string S=\"\";");
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        expectedLookups.addAll(COMMON_KEYWORDS);
+        expectedLookups.addAll(FUNCTION_LEVEL_KEYWORDS);
+        expectedLookups.add("S");
+        expectedLookups.add("F");
+        doTest("function F(){ <caret> }", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testConstantInDifferentPackage() {
+        myFixture.addFileToProject("org/test/file.bal", "public const string S=\"\";");
+        doTest("import org.test; function F(){ test:<caret> }", "S");
+    }
+
+    public void testConstantInDifferentPackageImportedAsAlias() {
+        myFixture.addFileToProject("org/test/file.bal", "cont string S=\"\";");
+        doTest("import org.test as utils; function F(){ utils:<caret> }", "S");
+    }
+}
diff --git a/src/test/java/org/ballerinalang/completion/BallerinaFileLevelCompletionTest.java b/src/test/java/org/ballerinalang/completion/BallerinaFileLevelCompletionTest.java
new file mode 100644
index 00000000..183219f6
--- /dev/null
+++ b/src/test/java/org/ballerinalang/completion/BallerinaFileLevelCompletionTest.java
@@ -0,0 +1,200 @@
+/*
+ *  Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.ballerinalang.completion;
+
+import java.util.LinkedList;
+import java.util.List;
+
+public class BallerinaFileLevelCompletionTest extends BallerinaCompletionTestBase {
+
+    /**
+     * Test file level lookups.
+     */
+    public void testEmptyFile() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(FILE_LEVEL_KEYWORDS);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        doTest("<caret>", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testEmptyFilePackageKeyword() {
+        doTest("p<caret>", "public", "import", "package", "typemapper", "map", "type");
+    }
+
+    public void testEmptyFileImportKeyword() {
+        doTest("i<caret>", "public", "annotation", "function", "import", "service", "int", "string");
+    }
+
+    public void testEmptyFileWithSpaceBeforeCaret() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(FILE_LEVEL_KEYWORDS);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        doTest("\n<caret>", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testEmptyFileWithSpaceBeforeCaretPackageKeyword() {
+        doTest("\np<caret>", "public", "import", "package", "typemapper", "map", "type");
+    }
+
+    public void testEmptyFileWithSpaceBeforeCaretImportKeyword() {
+        doTest("\ni<caret>", "public", "annotation", "function", "import", "service", "int", "string");
+    }
+
+    public void testEmptyFileWithSpaceAfterCaret() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(FILE_LEVEL_KEYWORDS);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        doTest("<caret>\n", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testEmptyFileWithSpaceAfterCaretPackageKeyword() {
+        doTest("p<caret>\n", "public", "import", "package", "typemapper", "map", "type");
+    }
+
+    public void testEmptyFileWithSpaceAfterCaretImportKeyword() {
+        doTest("i<caret>\n", "public", "annotation", "function", "import", "service", "int", "string");
+    }
+
+    public void testEmptyFileWithSpaces() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(FILE_LEVEL_KEYWORDS);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        doTest("\n<caret>\n", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testEmptyFileWithSpacesPackageKeyword() {
+        doTest("\np<caret>\n", "public", "import", "package", "typemapper", "map", "type");
+    }
+
+    public void testEmptyFileWithSpacesImportKeyword() {
+        doTest("\ni<caret>\n", "public", "annotation", "function", "import", "service", "int", "string");
+    }
+
+    public void testImportAfterPackage() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        expectedLookups.add("public");
+        expectedLookups.add("import");
+        expectedLookups.add("const");
+        expectedLookups.add("service");
+        expectedLookups.add("function");
+        expectedLookups.add("connector");
+        expectedLookups.add("struct");
+        expectedLookups.add("typemapper");
+        expectedLookups.add("annotation");
+        expectedLookups.add("enum");
+        doTest("package test; \n<caret>\n", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testImportAfterPackagePartialIdentifier() {
+        doTest("package test; \ni<caret>\n", "public", "annotation", "function", "import", "service", "int", "string");
+    }
+
+    public void testImportAfterPackageBeforeFunction() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        expectedLookups.add("public");
+        expectedLookups.add("import");
+        expectedLookups.add("const");
+        expectedLookups.add("service");
+        expectedLookups.add("function");
+        expectedLookups.add("connector");
+        expectedLookups.add("struct");
+        expectedLookups.add("typemapper");
+        expectedLookups.add("annotation");
+        expectedLookups.add("enum");
+        doTest("package test; \n<caret>\nfunction A(){}", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testImportAfterPackageBeforeFunctionPartialIdentifier() {
+        doTest("package test; \ni<caret>\nfunction A(){}", "public", "annotation", "function", "import", "service",
+                "int", "string");
+    }
+
+    public void testPackageBeforeImport() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(FILE_LEVEL_KEYWORDS);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        doTest("<caret>\nimport test; \nfunction A(){}", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testPackageBeforeImportPartialIdentifier() {
+        doTest("p<caret>\nimport test; \nfunction A(){}", "public", "import", "package", "typemapper", "map", "type");
+    }
+
+    public void testImportBeforeImport() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(FILE_LEVEL_KEYWORDS);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        doTest("<caret>\nimport test; \nfunction A(){}", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testImportBeforeImportPartialIdentifier() {
+        doTest("i<caret>\nimport test; \nfunction A(){}", "public", "annotation", "function", "import", "service",
+                "int", "string");
+    }
+
+    public void testImportAfterImport() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        expectedLookups.add("public");
+        expectedLookups.add("import");
+        expectedLookups.add("const");
+        expectedLookups.add("service");
+        expectedLookups.add("function");
+        expectedLookups.add("connector");
+        expectedLookups.add("struct");
+        expectedLookups.add("typemapper");
+        expectedLookups.add("annotation");
+        expectedLookups.add("enum");
+        expectedLookups.add("test");
+        myFixture.addFileToProject("test/file.bal", "string s = \"\";");
+        doTest("import test; \n<caret> \nfunction A(){}", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testImportAfterImportPartialIdentifier() {
+        doTest("import test; \ni<caret> \nfunction A(){}", "public", "annotation", "function", "import", "service",
+                "int", "string");
+    }
+}
diff --git a/src/test/java/org/ballerinalang/completion/BallerinaGlobalVariableCompletionTest.java b/src/test/java/org/ballerinalang/completion/BallerinaGlobalVariableCompletionTest.java
new file mode 100644
index 00000000..748bfb5b
--- /dev/null
+++ b/src/test/java/org/ballerinalang/completion/BallerinaGlobalVariableCompletionTest.java
@@ -0,0 +1,104 @@
+/*
+ *  Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.ballerinalang.completion;
+
+import java.util.LinkedList;
+import java.util.List;
+
+public class BallerinaGlobalVariableCompletionTest extends BallerinaCompletionTestBase {
+
+    /**
+     * Test global variables.
+     */
+    public void testGlobalVariableIdentifier() {
+        doTest("string <caret>");
+    }
+
+    public void testGlobalVariableFunctionValue() {
+        doCheckResult("test.bal", "string test = g<caret> function getValue()(string){return \"\";}",
+                "string test = getValue() function getValue()(string){return \"\";}", null);
+    }
+
+    public void testGlobalVariablePackageValue() {
+        myFixture.addFileToProject("org/test/file.bal", "function getValue()(string){return \"\";}");
+        doTest("import org.test; string s = <caret> ", "test", "true", "false", "null");
+    }
+
+    public void testGlobalVariablePackageValueCompletion() {
+        myFixture.addFileToProject("org/test/file.bal", "function getValue()(string){return \"\";}");
+        doCheckResult("test.bal", "import org.test; string s = te<caret> ", "import org.test; string s = test: ",
+                null);
+    }
+
+    public void testGlobalVariablePackageValueDifferentPackage() {
+        myFixture.addFileToProject("org/test/file.bal", "public function getValue()(string){return \"\";}");
+        doTest("import org.test; string s = test:<caret> ", "getValue");
+    }
+
+    public void testGlobalVariablePackageValueCompletionDifferentPackage() {
+        myFixture.addFileToProject("org/test/file.bal", "public function getValue()(string){return \"\";}");
+        doCheckResult("test.bal", "import org.test; string s = test:g<caret> ",
+                "import org.test; string s = test:getValue() ", null);
+    }
+
+    public void testGlobalVariablePackageValueDifferentFile() {
+        myFixture.addFileToProject("file.bal", "function getValue()(string){return \"\";}");
+        doTest("string s = <caret> ", "getValue", "true", "false", "null");
+    }
+
+    public void testGlobalVariablePackageValueDifferentFileCompletion() {
+        myFixture.addFileToProject("file.bal", "function getValue()(string){return \"\";}");
+        doCheckResult("test.bal", "string s = g<caret>", "string s = getValue()", null);
+    }
+
+    public void testGlobalVariableInSamePackageSameFile() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        expectedLookups.addAll(COMMON_KEYWORDS);
+        expectedLookups.addAll(FUNCTION_LEVEL_KEYWORDS);
+        expectedLookups.add("S");
+        expectedLookups.add("F");
+        doTest("string S=\"\"; function F(){ <caret> }", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testGlobalVariableInSamePackageDifferentFile() {
+        myFixture.addFileToProject("file.bal", "string S=\"\";");
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        expectedLookups.addAll(COMMON_KEYWORDS);
+        expectedLookups.addAll(FUNCTION_LEVEL_KEYWORDS);
+        expectedLookups.add("S");
+        expectedLookups.add("F");
+        doTest("function F(){ <caret> }", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testGlobalVariableInDifferentPackage() {
+        myFixture.addFileToProject("org/test/file.bal", "string S=\"\";");
+        doTest("import org.test; function F(){ test:<caret> }", "S");
+    }
+
+    public void testGlobalVariableInDifferentPackageImportedAsAlias() {
+        myFixture.addFileToProject("org/test/file.bal", "string S=\"\";");
+        doTest("import org.test as utils; function F(){ utils:<caret> }", "S");
+    }
+}
diff --git a/src/test/java/org/ballerinalang/completion/BallerinaHiddenTemplateCompletionTest.java b/src/test/java/org/ballerinalang/completion/BallerinaHiddenTemplateCompletionTest.java
new file mode 100644
index 00000000..d5539e68
--- /dev/null
+++ b/src/test/java/org/ballerinalang/completion/BallerinaHiddenTemplateCompletionTest.java
@@ -0,0 +1,112 @@
+/*
+ *  Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.ballerinalang.completion;
+
+public class BallerinaHiddenTemplateCompletionTest extends BallerinaCompletionTestBase {
+
+    /**
+     * Hidden templates.
+     */
+    public void testPackageKeyword() {
+        doCheckResult("test.bal", "package<caret>", "package ", null);
+    }
+
+    public void testImportKeyword() {
+        doCheckResult("test.bal", "import<caret>", "import ", null);
+    }
+
+    public void testIfKeyword() {
+        doCheckResult("test.bal", "function test(){ if<caret> }", "function test(){ if () {\n    \n} }", null);
+    }
+
+    public void testElseKeyword() {
+        doCheckResult("test.bal", "function test(){ else<caret> }", "function test(){ else {\n    \n} }", null);
+    }
+
+    public void testForkKeyword() {
+        doCheckResult("test.bal", "function test(){ fork<caret> }", "function test(){ fork {\n    \n} }", null);
+    }
+
+    public void testJoinKeyword() {
+        doCheckResult("test.bal", "function test(){ join<caret> }", "function test(){ join () () {\n    \n}" +
+                " }", null);
+    }
+
+    public void testTimeoutKeyword() {
+        doCheckResult("test.bal", "function test(){ timeout<caret> }", "function test(){ timeout () () " +
+                "{\n    \n} }", null);
+    }
+
+    public void testWorkerKeyword() {
+        doCheckResult("test.bal", "function test(){ worker<caret> }", "function test(){ worker  {\n    \n} }",
+                null);
+    }
+
+    public void testTransformKeyword() {
+        doCheckResult("test.bal", "function test(){ transform<caret> }", "function test(){ transform {\n    \n} }",
+                null);
+    }
+
+    public void testTransactionKeyword() {
+        doCheckResult("test.bal", "function test(){ transaction<caret> }", "function test(){ transaction {\n    \n} " +
+                "}", null);
+    }
+
+    public void testAbortedKeyword() {
+        doCheckResult("test.bal", "function test(){ aborted<caret> }", "function test(){ aborted {\n    \n} }", null);
+    }
+
+    public void testCommittedKeyword() {
+        doCheckResult("test.bal", "function test(){ committed<caret> }", "function test(){ committed {\n    \n} }",
+                null);
+    }
+
+    public void testTryKeyword() {
+        doCheckResult("test.bal", "function test(){ try<caret> }", "function test(){ try {\n    \n} }", null);
+    }
+
+    public void testCatchKeyword() {
+        doCheckResult("test.bal", "function test(){ catch<caret> }", "function test(){ catch () {\n    \n} }",
+                null);
+    }
+
+    public void testFinallyKeyword() {
+        doCheckResult("test.bal", "function test(){ finally<caret> }", "function test(){ finally {\n    \n} }", null);
+    }
+
+    public void testIterateKeyword() {
+        doCheckResult("test.bal", "function test(){ iterate<caret> }", "function test(){ iterate ( : ) {\n    \n} }",
+                null);
+    }
+
+    public void testWhileKeyword() {
+        doCheckResult("test.bal", "function test(){ while<caret> }", "function test(){ while () {\n    \n} }",
+                null);
+    }
+
+    public void testContinueKeyword() {
+        doCheckResult("test.bal", "function test(){ next<caret> }", "function test(){ next; }", null);
+    }
+
+    public void testBreakKeyword() {
+        doCheckResult("test.bal", "function test(){ break<caret> }", "function test(){ break; }", null);
+    }
+
+    public void testThrowKeyword() {
+        doCheckResult("test.bal", "function test(){ throw<caret> }", "function test(){ throw ; }", null);
+    }
+}
diff --git a/src/test/java/org/ballerinalang/completion/BallerinaParameterCompletionTest.java b/src/test/java/org/ballerinalang/completion/BallerinaParameterCompletionTest.java
new file mode 100644
index 00000000..c265b025
--- /dev/null
+++ b/src/test/java/org/ballerinalang/completion/BallerinaParameterCompletionTest.java
@@ -0,0 +1,135 @@
+/*
+ *  Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.ballerinalang.completion;
+
+import java.util.LinkedList;
+import java.util.List;
+
+public class BallerinaParameterCompletionTest extends BallerinaCompletionTestBase {
+
+    /**
+     * Test parameters.
+     */
+    public void testFunctionParamIdentifier() {
+        doTest("function test(string <caret>)");
+    }
+
+    public void testFunctionParamWithoutImports() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        doTest("function test(<caret>)", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testFunctionParamWithImports() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        expectedLookups.add("test");
+        myFixture.addFileToProject("org/test/file.bal", "string s = \"\";");
+        doTest("import org.test; function B(<caret>)", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testFunctionParamWithoutImportsAutoCompletion() {
+        doCheckResult("test.bal", "function test(st<caret>)", "function test(string )", null);
+    }
+
+    public void testFunctionParamWithImportsAutoCompletion() {
+        myFixture.addFileToProject("org/test/file.bal", "string s = \"\";");
+        doCheckResult("test.bal", "import org.test; function B(te<caret>)",
+                "import org.test; function B(test:)", null);
+    }
+
+    public void testCaretAfterFunctionParamWithoutImports() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        doTest("function test(string s,<caret>)", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testCaretBeforeFunctionParamWithoutImports() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        doTest("function test(<caret>string s)", expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testCaretAfterFunctionParamWithImports() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        expectedLookups.add("test");
+        myFixture.addFileToProject("org/test/file.bal", "string s = \"\";");
+        doTest("import org.test; function test(string s,<caret>)",
+                expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testCaretBeforeFunctionParamWithImports() {
+        List<String> expectedLookups = new LinkedList<>();
+        expectedLookups.addAll(DATA_TYPES);
+        expectedLookups.addAll(OTHER_TYPES);
+        expectedLookups.addAll(XMLNS_TYPE);
+        expectedLookups.addAll(REFERENCE_TYPES);
+        expectedLookups.add("test");
+        myFixture.addFileToProject("org/test/file.bal", "string s = \"\";");
+        doTest("import org.test; function test(<caret>string s)",
+                expectedLookups.toArray(new String[expectedLookups.size()]));
+    }
+
+    public void testParamAnnotationsPackage() {
+        myFixture.addFileToProject("org/test/file.bal", "annotation TEST attach parameter {}");
+        doTest("import org.test; function A(@<caret>)", "test");
+    }
+
+    public void testParamAnnotationsPackageAutoCompletion() {
+        myFixture.addFileToProject("org/test/file.bal", "annotation TEST attach parameter {}");
+        doCheckResult("test.bal", "import org.test; function A(@te<caret>)",
+                "import org.test; function A(@test:)", null);
+    }
+
+    public void testParamAnnotationsFromAPackage() {
+        myFixture.addFileToProject("org/test/file.bal", "public annotation TEST attach parameter {}");
+        doTest("import org.test; function A(@test:<caret>)", "TEST");
+    }
+
+    public void testParamAnnotationsFromAPackageAutoCompletion() {
+        myFixture.addFileToProject("org/test/file.bal", "public annotation TEST attach parameter {}");
+        doCheckResult("test.bal", "import org.test; function A(@test:T<caret>)",
+                "import org.test; function A(@test:TEST {})", null);
+    }
+
+    public void testPackageInvocationInParameter() {
+        myFixture.addFileToProject("org/test/file.bal", "public struct test {}");
+        doTest("import org.test; function A(test:<caret>)", "test");
+    }
+
+    public void testPackageInvocationInParameterAutoCompletion() {
+        myFixture.addFileToProject("org/test/file.bal", "public struct test {}");
+        doCheckResult("test.bal", "import org.test; function A(test:t<caret>)",
+                "import org.test; function A(test:test )", null);
+    }
+}
diff --git a/src/test/java/org/ballerinalang/completion/BallerinaStructFieldCompletionTest.java b/src/test/java/org/ballerinalang/completion/BallerinaStructFieldCompletionTest.java
new file mode 100644
index 00000000..ec9e59f1
--- /dev/null
+++ b/src/test/java/org/ballerinalang/completion/BallerinaStructFieldCompletionTest.java
@@ -0,0 +1,77 @@
+/*
+ *  Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.ballerinalang.completion;
+
+public class BallerinaStructFieldCompletionTest extends BallerinaCompletionTestBase {
+
+    @Override
+    protected String getTestDataPath() {
+        return getTestDataPath("completion/structFields");
+    }
+
+    public void testStructAsFunctionNamedReturn() {
+        doTestFile("name", "age");
+    }
+
+    public void testStructAsFunctionNamedReturnVarAssignment() {
+        doTestFile("name", "age");
+    }
+
+    public void testStructAsFunctionReturnParam() {
+        doTestFile("name", "age");
+    }
+
+    public void testStructAsFunctionReturnParamVarAssignment() {
+        doTestFile("name", "age");
+    }
+
+    public void testStructAsNamedReturn() {
+        doTestFile("name", "age");
+    }
+
+    public void testStructAsNamedReturn2() {
+        doTestFile("name", "age");
+    }
+
+    public void testStructAsNamedReturnPartialField() {
+        doTestFile("name", "age");
+    }
+
+    public void testStructAsParam() {
+        doTestFile("name", "age");
+    }
+
+    public void testStructAsParam2() {
+        doTestFile("name", "age");
+    }
+
+    public void testStructDeclarationReassigningAsVar() {
+        doTestFile("name", "age");
+    }
+
+    public void testStructDeclarationReassigningAsVar2() {
+        doTestFile("name", "age");
+    }
+
+    public void testStructVarReassigningAsVar() {
+        doTestFile("name", "age");
+    }
+
+    public void testStructVarReassigningAsVar2() {
+        doTestFile("name", "age");
+    }
+}
diff --git a/src/test/resources/testData/completion/structFields/StructAsFunctionNamedReturn.bal b/src/test/resources/testData/completion/structFields/StructAsFunctionNamedReturn.bal
new file mode 100644
index 00000000..d564b951
--- /dev/null
+++ b/src/test/resources/testData/completion/structFields/StructAsFunctionNamedReturn.bal
@@ -0,0 +1,14 @@
+struct User {
+    string name;
+    int age;
+}
+
+function getUser (string name, int age) (User user) {
+    user = {name:name, age:age};
+    return;
+}
+
+function main (string[] args) {
+    User user = getUser("Ballerina", 1);
+    user.<caret>
+}
diff --git a/src/test/resources/testData/completion/structFields/StructAsFunctionNamedReturnVarAssignment.bal b/src/test/resources/testData/completion/structFields/StructAsFunctionNamedReturnVarAssignment.bal
new file mode 100644
index 00000000..afca3e1b
--- /dev/null
+++ b/src/test/resources/testData/completion/structFields/StructAsFunctionNamedReturnVarAssignment.bal
@@ -0,0 +1,14 @@
+struct User {
+    string name;
+    int age;
+}
+
+function getUser (string name, int age) (User user) {
+    user = {name:name, age:age};
+    return;
+}
+
+function main (string[] args) {
+    var user = getUser("Ballerina", 1);
+    user.<caret>
+}
diff --git a/src/test/resources/testData/completion/structFields/StructAsFunctionReturnParam.bal b/src/test/resources/testData/completion/structFields/StructAsFunctionReturnParam.bal
new file mode 100644
index 00000000..ff7acc39
--- /dev/null
+++ b/src/test/resources/testData/completion/structFields/StructAsFunctionReturnParam.bal
@@ -0,0 +1,14 @@
+struct User {
+    string name;
+    int age;
+}
+
+function getUser (string name, int age) (User) {
+    User user = {name:name, age:age};
+    return user;
+}
+
+function main (string[] args) {
+    User user = getUser("Ballerina", 1);
+    user.<caret>
+}
diff --git a/src/test/resources/testData/completion/structFields/StructAsFunctionReturnParamVarAssignment.bal b/src/test/resources/testData/completion/structFields/StructAsFunctionReturnParamVarAssignment.bal
new file mode 100644
index 00000000..a02d5153
--- /dev/null
+++ b/src/test/resources/testData/completion/structFields/StructAsFunctionReturnParamVarAssignment.bal
@@ -0,0 +1,14 @@
+struct User {
+    string name;
+    int age;
+}
+
+function getUser (string name, int age) (User) {
+    User user = {name:name, age:age};
+    return user;
+}
+
+function main (string[] args) {
+    var user = getUser("Ballerina", 1);
+    user.<caret>
+}
diff --git a/src/test/resources/testData/completion/structFields/StructAsNamedReturn.bal b/src/test/resources/testData/completion/structFields/StructAsNamedReturn.bal
new file mode 100644
index 00000000..bd186df6
--- /dev/null
+++ b/src/test/resources/testData/completion/structFields/StructAsNamedReturn.bal
@@ -0,0 +1,8 @@
+struct User {
+    string name;
+    int age;
+}
+
+function test () (User user) {
+    user.<caret>
+}
diff --git a/src/test/resources/testData/completion/structFields/StructAsNamedReturn2.bal b/src/test/resources/testData/completion/structFields/StructAsNamedReturn2.bal
new file mode 100644
index 00000000..5762dbc1
--- /dev/null
+++ b/src/test/resources/testData/completion/structFields/StructAsNamedReturn2.bal
@@ -0,0 +1,8 @@
+struct User {
+    string name;
+    int age;
+}
+
+function test () (User user) {
+    user = {<caret>};
+}
diff --git a/src/test/resources/testData/completion/structFields/StructAsNamedReturnPartialField.bal b/src/test/resources/testData/completion/structFields/StructAsNamedReturnPartialField.bal
new file mode 100644
index 00000000..4159c8ea
--- /dev/null
+++ b/src/test/resources/testData/completion/structFields/StructAsNamedReturnPartialField.bal
@@ -0,0 +1,8 @@
+struct User {
+    string name;
+    int age;
+}
+
+function test () (User user) {
+    user.a<caret>
+}
diff --git a/src/test/resources/testData/completion/structFields/StructAsParam.bal b/src/test/resources/testData/completion/structFields/StructAsParam.bal
new file mode 100644
index 00000000..7e8a5d88
--- /dev/null
+++ b/src/test/resources/testData/completion/structFields/StructAsParam.bal
@@ -0,0 +1,8 @@
+struct User {
+    string name;
+    int age;
+}
+
+function test (User user)  {
+    user.<caret>
+}
diff --git a/src/test/resources/testData/completion/structFields/StructAsParam2.bal b/src/test/resources/testData/completion/structFields/StructAsParam2.bal
new file mode 100644
index 00000000..08004efb
--- /dev/null
+++ b/src/test/resources/testData/completion/structFields/StructAsParam2.bal
@@ -0,0 +1,8 @@
+struct User {
+    string name;
+    int age;
+}
+
+function test (User user) {
+    user = {<caret>};
+}
diff --git a/src/test/resources/testData/completion/structFields/StructDeclarationReassigningAsVar.bal b/src/test/resources/testData/completion/structFields/StructDeclarationReassigningAsVar.bal
new file mode 100644
index 00000000..f9286dcd
--- /dev/null
+++ b/src/test/resources/testData/completion/structFields/StructDeclarationReassigningAsVar.bal
@@ -0,0 +1,10 @@
+struct User {
+    string name;
+    int age;
+}
+
+function main (string[] args) {
+    User user = {};
+    var temp = user;
+    temp.<caret>
+}
diff --git a/src/test/resources/testData/completion/structFields/StructDeclarationReassigningAsVar2.bal b/src/test/resources/testData/completion/structFields/StructDeclarationReassigningAsVar2.bal
new file mode 100644
index 00000000..3e93d939
--- /dev/null
+++ b/src/test/resources/testData/completion/structFields/StructDeclarationReassigningAsVar2.bal
@@ -0,0 +1,11 @@
+struct User {
+    string name;
+    int age;
+}
+
+function main (string[] args) {
+    User user = {};
+    var temp = user;
+    var temp2 = temp;
+    temp2.<caret>
+}
diff --git a/src/test/resources/testData/completion/structFields/StructVarReassigningAsVar.bal b/src/test/resources/testData/completion/structFields/StructVarReassigningAsVar.bal
new file mode 100644
index 00000000..2bbee927
--- /dev/null
+++ b/src/test/resources/testData/completion/structFields/StructVarReassigningAsVar.bal
@@ -0,0 +1,15 @@
+struct User {
+    string name;
+    int age;
+}
+
+function getUser (string name, int age) (User user) {
+    user = {name:name, age:age};
+    return;
+}
+
+function main (string[] args) {
+    var user = getUser("Ballerina", 1);
+    var temp = user;
+    temp.<caret>
+}
diff --git a/src/test/resources/testData/completion/structFields/StructVarReassigningAsVar2.bal b/src/test/resources/testData/completion/structFields/StructVarReassigningAsVar2.bal
new file mode 100644
index 00000000..f7986e1a
--- /dev/null
+++ b/src/test/resources/testData/completion/structFields/StructVarReassigningAsVar2.bal
@@ -0,0 +1,16 @@
+struct User {
+    string name;
+    int age;
+}
+
+function getUser (string name, int age) (User user) {
+    user = {name:name, age:age};
+    return;
+}
+
+function main (string[] args) {
+    var user = getUser("Ballerina", 1);
+    var temp = user;
+    var temp2 = temp;
+    temp2.<caret>
+}