fix: support accessing query parameters for state handlebar extension (#127)

- always call `toString` when accessing an option hash

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## References

- #126

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upstream and downstream changes -->

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Author: dirkbolte

.github/workflows/build-and-test.yml

@@ -69,4 +69,27 @@ jobs:
         uses: actions/upload-artifact@v3
         with:
           name: jacoco-report
-          path: build/reports/jacoco/
+          path: build/reports/jacoco/
+
+  archive:
+    name: Archive job results
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Set up JDK
+        uses: actions/setup-java@v3
+        with:
+          java-version: 11
+          distribution: 'temurin'
+      - name: Run the Gradle package task
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: jar shadowjar
+      - name: Archive production artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: jars
+          path: |
+            build/libs/*.jar

src/main/java/org/wiremock/extensions/state/extensions/StateHandlerbarHelper.java

@@ -51,10 +51,10 @@ public StateHandlerbarHelper(ContextManager contextManager) {
 
     @Override
     public Object apply(Object o, Options options) {
-        String contextName = options.hash("context");
-        String property = options.hash("property");
-        String list = options.hash("list");
-        String defaultValue = options.hash("default");
+        String contextName = Optional.ofNullable(options.hash("context")).map(Object::toString).orElse(null);
+        String property = Optional.ofNullable(options.hash("property")).map(Object::toString).orElse(null);
+        String list = Optional.ofNullable(options.hash("list")).map(Object::toString).orElse(null);
+        String defaultValue = Optional.ofNullable(options.hash("default")).map(Object::toString).orElse(null);
         if (StringUtils.isEmpty(contextName)) {
             return handleError("'context' cannot be empty");
         }

src/test/java/org/wiremock/extensions/state/functionality/StateTemplateHelperProviderExtensionTest.java

@@ -60,7 +60,7 @@ private void postContext(String contextName, Map<String, Object> body) {
     private void getContext(String contextName, Consumer<Map<String, Object>> assertion) {
         Map<String, Object> result = given()
             .accept(ContentType.JSON)
-            .get(assertDoesNotThrow(() -> new URI(String.format("%s/%s/%s", wm.getRuntimeInfo().getHttpBaseUrl(), "contexturl", contextName))))
+            .get(assertDoesNotThrow(() -> new URI(String.format("%s/%s/%s?contextName=%s", wm.getRuntimeInfo().getHttpBaseUrl(), "contexturl", contextName, contextName))))
             .then()
             .statusCode(HttpStatus.SC_OK)
             .extract().body().as(mapper.getTypeFactory().constructMapType(HashMap.class, String.class, Object.class));
@@ -165,6 +165,7 @@ public void test_noExtensionUsage_ok() throws JsonProcessingException, URISyntax
     public class ConfigurationErrors {
 
         private final String contextName = "contextName";
+
         @DisplayName("fails on missing context")
         @Test
         public void test_missingContext_fail() {
@@ -561,12 +562,43 @@ public void test_listSizeWithDefault() {
         }
     }
 
+    @DisplayName("with request query")
+    @Nested
+    public class RequestQuery {
+
+        private final String contextName = "aContextName";
+
+        @DisplayName("works for context")
+        @Test
+        void test_contextFromQuery() {
+            Map<String, Object> request = Map.of("contextValue", "aContextValue");
+            createContextStatePostStub(Map.of("contextValue", "{{jsonPath request.body '$.contextValue'}}"));
+            createContextGetStub(Map.of("contextValue", "{{state context=request.query.contextName property='contextValue'}}"));
+
+            postContext(contextName, request);
+            getContext(contextName, (result) -> assertThat(result).containsExactlyEntriesOf(request));
+        }
+
+        @DisplayName("works for property")
+        @Test
+        void test_contextFromProperty() {
+            Map<String, Object> request = Map.of("contextValue", "aContextValue");
+            createContextStatePostStub(Map.of(contextName, "{{jsonPath request.body '$.contextValue'}}"));
+            createContextGetStub(Map.of("contextValue", String.format("{{state context=request.query.contextName property='%s'}}", contextName)));
+
+            postContext(contextName, request);
+            getContext(contextName, (result) -> assertThat(result).containsExactlyEntriesOf(request));
+        }
+
+    }
+
     @DisplayName("with existing property")
     @Nested
     public class ExistingProperty {
 
         private final String contextName = "aContextName";
 
+
         @DisplayName("returns property from previous request")
         @Test
         void test_returnsState() {