isinstance tests

tests/run/isinstance.pyx

+__doc__ = u"""
+>>> test_all()
+True
+"""
+cdef class A:
+    pass
+
+def test_all():
+    # Optimized tests.
+    assert isinstance(type('a',(),{}), type)
+    assert isinstance(bool(), bool)
+    assert isinstance(int(), int)
+    assert isinstance(long(), long)
+    assert isinstance(float(), float)
+    assert isinstance(complex(), complex)
+    assert isinstance(bytes(), bytes)
+    assert isinstance(str(), str)
+    assert isinstance(unicode(), unicode)
+    assert isinstance(tuple(), tuple)
+    assert isinstance(list(), list)
+    assert isinstance(dict(), dict)
+#    if py_ver > (2, 3):
+#        assert isinstance(set(), set)
+    assert isinstance(slice(0), slice)
+    assert isinstance(A, type)
+    assert isinstance(A(), A)
+    assert not isinstance("foo", int)
+    
+    # Non-optimized
+    foo = A
+    assert isinstance(A(), foo)
+    assert isinstance(0, (int, long))
+    assert not isinstance("xyz", (int, long))
+    return True
+