Fixing several tests

Using isinstance instead of comparing classes names
Removing unnecessary tuple check, treated by the return value unpacking
Adding missing inject code tests
Adding qfile.getchar test

Fixing QLocale.to* methods
fixing __setitem__ in qbytearray

tests/qtcore/qchar_test.py

@@ -0,0 +1,33 @@
+
+'''Test cases for QChar'''
+
+import unittest
+
+from PySide.QtCore import QString, QChar, QTextStream, QLatin1Char
+
+
+class EqualTest(unittest.TestCase):
+    '''Tests for '__equal__'''
+
+    def testEqualQChar(self):
+        '''QChar == QChar'''
+        self.assertEqual(QChar('a'), QChar('a'))
+
+    def testEqualPyString(self):
+        '''QChar == Python string'''
+        self.assertEqual(QChar('a'), 'a')
+
+
+class ImplicitConvQLatin1Char(unittest.TestCase):
+    '''Tests for implicit conversion from QLatin1Char to QChar'''
+
+    def testQLatin1CharToChar(self):
+        '''QLatin1Char implicitly convertible to QChar'''
+        stream = QTextStream()
+        stream.setPadChar(QLatin1Char('-'))
+        self.assertEqual(QChar('-'), stream.padChar())
+
+
+if __name__ == '__main__':
+    unittest.main()
+