1 files changed, 76 insertions, 6 deletions
diff --git a/tests/glibext/strbuilder.py b/tests/glibext/strbuilder.py
index ced405e..72fd5c2 100644
--- a/tests/glibext/strbuilder.py
+++ b/tests/glibext/strbuilder.py
@@ -1,4 +1,6 @@
 
+import gi
+
 from chrysacase import ChrysalideTestCase
 from gi.repository import GObject
 from pychrysalide.glibext import StringBuilder
@@ -8,22 +10,31 @@ class TestStringBuilder(ChrysalideTestCase):
     """Test cases for pychrysalide.glibext.StringBuilder."""
 
 
-    def testStringBuilderCreation(self):
+    def ZZZtestStringBuilderCreation(self):
         """Create objects with StringBuilder interface."""
 
         with self.assertRaisesRegex(NotImplementedError, 'StringBuilder can not be constructed'):
 
-            sc = StringBuilder()
+            sb = StringBuilder()
+
 
-        class NewStringBuilderImplem(GObject.Object, StringBuilder):
+        class NewStringBuilderImplem(gi._gi.GObject, StringBuilder):
             pass
 
-        nsi = NewStringBuilderImplem()
+        nsb = NewStringBuilderImplem()
+
+        self.assertIsNotNone(nsb)
+
+
+        class NewStringBuilderImplem2(GObject.Object, StringBuilder):
+            pass
 
-        self.assertIsNotNone(nsi)
+        nsb2 = NewStringBuilderImplem()
 
+        self.assertIsNotNone(nsb2)
 
-    def testStringBuilderMethods(self):
+
+    def ZZZtestStringBuilderMethods(self):
         """Test the StringBuilder methods."""
 
         class BasicStringBuilderImplem(GObject.Object, StringBuilder):
@@ -42,3 +53,62 @@ class TestStringBuilder(ChrysalideTestCase):
         self.assertEqual(sb.to_string(), desc)
         self.assertEqual(str(sb), desc)
         self.assertEqual(f'{sb}', desc)
+
+
+    def testStringBuilderExceptions(self):
+        """Raise exceptions from the StringBuilder interface as expected."""
+
+
+        class BadStringBuilderImplem(GObject.Object, StringBuilder):
+            pass
+
+        obj = BadStringBuilderImplem()
+
+
+        with self.assertRaisesRegex(NotImplementedError, "method implementation is missing for '_to_string'"):
+
+            s = str(obj)
+
+
+        class BadStringBuilderImplem2(GObject.Object, StringBuilder):
+
+            def _to_string(self, flags=0):
+                return 0xcafe
+
+        obj2 = BadStringBuilderImplem2()
+
+
+        with self.assertRaisesRegex(TypeError, 'object description has to get provided as an UTF-8 string value'):
+
+            s = str(obj2)
+
+
+        class BadStringBuilderImplem3a(GObject.Object, StringBuilder):
+
+            def _to_string(self, flags=0):
+                return 'desc'
+
+        class BadStringBuilderImplem3b(BadStringBuilderImplem3a, StringBuilder):
+
+            def _to_string(self, flags=0):
+                return self.parent_to_string()
+
+        obj3 = BadStringBuilderImplem3b()
+
+
+        with self.assertRaisesRegex(RuntimeError, 'object parent is not a native type'):
+
+            s = str(obj3)
+
+
+        class BadStringBuilderImplem4(GObject.Object, StringBuilder):
+
+            def _to_string(self, flags=0):
+                raise Exception('error')
+
+        obj4 = BadStringBuilderImplem4()
+
+
+        with self.assertRaisesRegex(Exception, 'error'):
+
+            s = str(obj4)