[pygobject] Add tests for internal API

[Martin Pitt <martinpitt src gnome org>]

commit 449b1ef0d94450c1e457770a093abd6d6c9e6291
Author: Martin Pitt <martinpitt gnome org>
Date:   Mon Dec 17 22:50:59 2012 +0100

    Add tests for internal API
    
    These cover functions like pygobject_new(), pyg_value_from_pyobject() and
    pyg_value_as_pyobject() that are wrapped by testhelpermodule.c. With that these
    functions can be tested in isolation without the whole GI stack around them.

 tests/Makefile.am          |    1 +
 tests/test_internal_api.py |   73 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 74 insertions(+), 0 deletions(-)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index a91c814..77efd2e 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -88,6 +88,7 @@ EXTRA_DIST = \
 	test_gobject.py \
 	test_gtype.py \
 	test_interface.py \
+	test_internal_api.py \
 	test_iochannel.py \
 	test_mainloop.py \
 	test_option.py \
diff --git a/tests/test_internal_api.py b/tests/test_internal_api.py
new file mode 100644
index 0000000..ca50f6b
--- /dev/null
+++ b/tests/test_internal_api.py
@@ -0,0 +1,73 @@
+# -*- Mode: Python -*-
+
+import unittest
+
+from gi.repository import GLib, GObject
+
+import testhelper
+import testmodule
+
+
+class TestObject(unittest.TestCase):
+    def test_create_ctor(self):
+        o = testmodule.PyGObject()
+        self.assertTrue(isinstance(o, GObject.Object))
+        self.assertTrue(isinstance(o, testmodule.PyGObject))
+
+        # has expected property
+        self.assertEqual(o.props.label, 'hello')
+        o.props.label = 'goodbye'
+        self.assertEqual(o.props.label, 'goodbye')
+        self.assertRaises(AttributeError, getattr, o.props, 'nosuchprop')
+
+    def test_pyobject_new_test_type(self):
+        o = testhelper.create_test_type()
+        self.assertTrue(isinstance(o, testmodule.PyGObject))
+
+        # has expected property
+        self.assertEqual(o.props.label, 'hello')
+        o.props.label = 'goodbye'
+        self.assertEqual(o.props.label, 'goodbye')
+        self.assertRaises(AttributeError, getattr, o.props, 'nosuchprop')
+
+    def test_new_refcount(self):
+        # TODO: justify why this should be 2
+        self.assertEqual(testhelper.test_g_object_new(), 2)
+
+
+class TestGValueConversion(unittest.TestCase):
+    def test_int(self):
+        self.assertEqual(testhelper.test_value(0), 0)
+        self.assertEqual(testhelper.test_value(5), 5)
+        self.assertEqual(testhelper.test_value(-5), -5)
+        self.assertEqual(testhelper.test_value(GObject.G_MAXINT32), GObject.G_MAXINT32)
+        self.assertEqual(testhelper.test_value(GObject.G_MININT32), GObject.G_MININT32)
+
+    def test_str(self):
+        self.assertEqual(testhelper.test_value('hello'), 'hello')
+
+    def test_int_array(self):
+        self.assertEqual(testhelper.test_value_array([]), [])
+        self.assertEqual(testhelper.test_value_array([0]), [0])
+        ar = list(range(100))
+        self.assertEqual(testhelper.test_value_array(ar), ar)
+
+    def test_str_array(self):
+        self.assertEqual(testhelper.test_value_array([]), [])
+        self.assertEqual(testhelper.test_value_array(['a']), ['a'])
+        ar = ('aa ' * 1000).split()
+        self.assertEqual(testhelper.test_value_array(ar), ar)
+
+
+class TestErrors(unittest.TestCase):
+    def test_gerror(self):
+        callable_ = lambda: GLib.file_get_contents('/nonexisting ')
+        self.assertRaises(GLib.GError, testhelper.test_gerror_exception, callable_)
+
+    def test_no_gerror(self):
+        callable_ = lambda: GLib.file_get_contents(__file__)
+        self.assertEqual(testhelper.test_gerror_exception(callable_), None)
+
+
+if __name__ == '__main__':
+    unittest.main()