1 files changed, 75 insertions, 0 deletions
diff --git a/Lib/test/test_json/test_unicode.py b/Lib/test/test_json/test_unicode.py
new file mode 100644
index 0000000000..c7cc8a7e92
--- /dev/null
+++ b/Lib/test/test_json/test_unicode.py
@@ -0,0 +1,75 @@
+from collections import OrderedDict
+from test.test_json import PyTest, CTest
+
+
+class TestUnicode:
+    # test_encoding1 and test_encoding2 from 2.x are irrelevant (only str
+    # is supported as input, not bytes).
+
+    def test_encoding3(self):
+        u = '\N{GREEK SMALL LETTER ALPHA}\N{GREEK CAPITAL LETTER OMEGA}'
+        j = self.dumps(u)
+        self.assertEqual(j, '"\\u03b1\\u03a9"')
+
+    def test_encoding4(self):
+        u = '\N{GREEK SMALL LETTER ALPHA}\N{GREEK CAPITAL LETTER OMEGA}'
+        j = self.dumps([u])
+        self.assertEqual(j, '["\\u03b1\\u03a9"]')
+
+    def test_encoding5(self):
+        u = '\N{GREEK SMALL LETTER ALPHA}\N{GREEK CAPITAL LETTER OMEGA}'
+        j = self.dumps(u, ensure_ascii=False)
+        self.assertEqual(j, '"{0}"'.format(u))
+
+    def test_encoding6(self):
+        u = '\N{GREEK SMALL LETTER ALPHA}\N{GREEK CAPITAL LETTER OMEGA}'
+        j = self.dumps([u], ensure_ascii=False)
+        self.assertEqual(j, '["{0}"]'.format(u))
+
+    def test_big_unicode_encode(self):
+        u = '\U0001d120'
+        self.assertEqual(self.dumps(u), '"\\ud834\\udd20"')
+        self.assertEqual(self.dumps(u, ensure_ascii=False), '"\U0001d120"')
+
+    def test_big_unicode_decode(self):
+        u = 'z\U0001d120x'
+        self.assertEqual(self.loads('"' + u + '"'), u)
+        self.assertEqual(self.loads('"z\\ud834\\udd20x"'), u)
+
+    def test_unicode_decode(self):
+        for i in range(0, 0xd7ff):
+            u = chr(i)
+            s = '"\\u{0:04x}"'.format(i)
+            self.assertEqual(self.loads(s), u)
+
+    def test_unicode_preservation(self):
+        self.assertEqual(type(self.loads('""')), str)
+        self.assertEqual(type(self.loads('"a"')), str)
+        self.assertEqual(type(self.loads('["a"]')[0]), str)
+
+    def test_bytes_encode(self):
+        self.assertRaises(TypeError, self.dumps, b"hi")
+        self.assertRaises(TypeError, self.dumps, [b"hi"])
+
+    def test_bytes_decode(self):
+        self.assertRaises(TypeError, self.loads, b'"hi"')
+        self.assertRaises(TypeError, self.loads, b'["hi"]')
+
+
+    def test_object_pairs_hook_with_unicode(self):
+        s = '{"xkd":1, "kcw":2, "art":3, "hxm":4, "qrt":5, "pad":6, "hoy":7}'
+        p = [("xkd", 1), ("kcw", 2), ("art", 3), ("hxm", 4),
+             ("qrt", 5), ("pad", 6), ("hoy", 7)]
+        self.assertEqual(self.loads(s), eval(s))
+        self.assertEqual(self.loads(s, object_pairs_hook = lambda x: x), p)
+        od = self.loads(s, object_pairs_hook = OrderedDict)
+        self.assertEqual(od, OrderedDict(p))
+        self.assertEqual(type(od), OrderedDict)
+        # the object_pairs_hook takes priority over the object_hook
+        self.assertEqual(self.loads(s, object_pairs_hook = OrderedDict,
+                                    object_hook = lambda x: None),
+                         OrderedDict(p))
+
+
+class TestPyUnicode(TestUnicode, PyTest): pass
+class TestCUnicode(TestUnicode, CTest): pass