Merge pull request #9 from deanagan/master

Fixed some boolean functions not returning check_obj and added unit tests

Author: csparpa

fluentcheck/assertions/booleans.py

@@ -34,29 +34,27 @@ def is_falsy(check_obj):
 
 
 def is_not_truthy(check_obj):
-    check_obj.is_falsy()
+    return check_obj.is_falsy()
 
 
 def is_not_falsy(check_obj):
-    check_obj.is_truthy()
+    return check_obj.is_truthy()
 
 
 def is_true(check_obj):
-    check_obj.is_boolean()
-    check_obj.is_truthy()
+    return check_obj.is_truthy().is_boolean()
 
 
 def is_false(check_obj):
-    check_obj.is_boolean()
-    check_obj.is_falsy()
+    return check_obj.is_falsy().is_boolean()
 
 
 def is_not_true(check_obj):
-    check_obj.is_false()
+    return check_obj.is_false()
 
 
 def is_not_false(check_obj):
-    check_obj.is_true()
+    return check_obj.is_true()
 
 
 def has_same_truth_of(check_obj, value):

fluentcheck/tests/test_booleans.py

@@ -0,0 +1,140 @@
+import unittest
+from fluentcheck.check import Check, CheckError
+
+
+class BooleanObject:
+    def __init__(self, is_true):
+        self.is_true = is_true
+    def __bool__(self):
+        return self.is_true
+
+
+class BooleanByLengthObject:
+
+	def __init__(self, items = None):
+		self.items = [] if items is None else items
+	def __len__(self):
+		return len(self.items)
+
+
+class TestBooleansAssertions(unittest.TestCase):
+
+    def setUp(self):
+        self.falsy_values = ([], (), {}, set(), "", '',
+                             range(0), 0, 0.0, 0j, None, False,
+                             BooleanObject(False), BooleanByLengthObject())
+        self.truthy_values = ([1,], ('a',), {1:'one'}, set([1,1,]), "1", '2',
+                             range(1), 1, 1.0, 1j, not None, True,
+                             BooleanObject(True), BooleanByLengthObject([1,2]))
+
+    def test_is_boolean(self):
+        res = Check(1 == 2).is_boolean()
+        self.assertIsInstance(res, Check)
+        try:
+            Check(1).is_boolean()
+            self.fail()
+        except CheckError:
+            pass
+
+    def test_is_not_boolean(self):
+        res = Check(1).is_not_boolean()
+        self.assertIsInstance(res, Check)
+        try:
+            Check(1 == 2).is_not_boolean()
+            self.fail()
+        except CheckError:
+            pass
+
+    def test_is_true(self):
+        res = Check(1 == 1).is_true()
+        self.assertIsInstance(res, Check)
+        try:
+            Check(1 == 2).is_true()
+            self.fail()
+        except CheckError:
+            pass
+
+    def test_is_not_true(self):
+        res = Check(1 == 2).is_not_true()
+        self.assertIsInstance(res, Check)
+        try:
+            Check(1 == 1).is_not_true()
+            self.fail()
+        except CheckError:
+            pass
+
+    def test_is_false(self):
+        res = Check(1 == 2).is_false()
+        self.assertIsInstance(res, Check)
+        try:
+            Check(1 == 1).is_false()
+            self.fail()
+        except CheckError:
+            pass
+
+    def test_is_not_false(self):
+        res = Check(1 == 1).is_not_false()
+        self.assertIsInstance(res, Check)
+        try:
+            Check(1 == 2).is_not_false()
+            self.fail()
+        except CheckError:
+            pass
+
+    def test_is_falsy(self):
+        for item in self.falsy_values:
+            res = Check(item).is_falsy()
+            self.assertIsInstance(res, Check)
+            try:
+                Check(not item).is_falsy()
+                self.fail()
+            except CheckError:
+                pass
+
+    def test_is_not_falsy(self):
+        for item in self.falsy_values:
+            res = Check(not item).is_not_falsy()
+            self.assertIsInstance(res, Check)
+            try:
+                Check(item).is_not_falsy()
+                self.fail()
+            except CheckError:
+                pass
+
+    def test_is_truthy(self):
+        for item in self.truthy_values:
+            res = Check(item).is_truthy()
+            self.assertIsInstance(res, Check)
+            try:
+                Check(not item).is_truthy()
+                self.fail()
+            except CheckError:
+                pass
+
+    def test_is_not_truthy(self):
+        for item in self.truthy_values:
+            res = Check(not item).is_not_truthy()
+            self.assertIsInstance(res, Check)
+            try:
+                Check(item).is_not_truthy()
+                self.fail()
+            except CheckError:
+                pass
+    
+    def test_has_same_truth_of(self):
+        res = Check(BooleanObject(True)).has_same_truth_of(BooleanByLengthObject([1,2]))
+        self.assertIsInstance(res, Check)
+        try:
+            Check(BooleanObject(False)).has_same_truth_of(BooleanByLengthObject([1,2]))
+            self.fail()
+        except CheckError:
+            pass
+
+    def test_has_opposite_truth_of(self):
+        res = Check(BooleanObject(False)).has_opposite_truth_of(BooleanByLengthObject([1,]))
+        self.assertIsInstance(res, Check)
+        try:
+            Check(BooleanObject(False)).has_opposite_truth_of(BooleanByLengthObject())
+            self.fail()
+        except CheckError:
+            pass