Issue #18048: Rename test_coding.py to test_source_encoding.py.

1 files changed, 65 insertions, 0 deletions

diff --git a/Lib/test/test_source_encoding.py b/Lib/test/test_source_encoding.py
new file mode 100644
index 0000000000..dfd5431dee
--- /dev/null
+++ b/Lib/test/test_source_encoding.py
@@ -0,0 +1,65 @@
+import test.support, unittest
+from test.support import TESTFN, unlink, unload
+import importlib, os, sys
+
+class CodingTest(unittest.TestCase):
+    def test_bad_coding(self):
+        module_name = 'bad_coding'
+        self.verify_bad_module(module_name)
+
+    def test_bad_coding2(self):
+        module_name = 'bad_coding2'
+        self.verify_bad_module(module_name)
+
+    def verify_bad_module(self, module_name):
+        self.assertRaises(SyntaxError, __import__, 'test.' + module_name)
+
+        path = os.path.dirname(__file__)
+        filename = os.path.join(path, module_name + '.py')
+        with open(filename, "rb") as fp:
+            bytes = fp.read()
+        self.assertRaises(SyntaxError, compile, bytes, filename, 'exec')
+
+    def test_exec_valid_coding(self):
+        d = {}
+        exec('# coding: cp949\na = 5\n', d)
+        self.assertEqual(d['a'], 5)
+
+    def test_file_parse(self):
+        # issue1134: all encodings outside latin-1 and utf-8 fail on
+        # multiline strings and long lines (>512 columns)
+        unload(TESTFN)
+        sys.path.insert(0, os.curdir)
+        filename = TESTFN + ".py"
+        f = open(filename, "w")
+        try:
+            f.write("# -*- coding: cp1252 -*-\n")
+            f.write("'''A short string\n")
+            f.write("'''\n")
+            f.write("'A very long string %s'\n" % ("X" * 1000))
+            f.close()
+
+            importlib.invalidate_caches()
+            __import__(TESTFN)
+        finally:
+            f.close()
+            unlink(filename)
+            unlink(filename + "c")
+            unload(TESTFN)
+            del sys.path[0]
+
+    def test_error_from_string(self):
+        # See http://bugs.python.org/issue6289
+        input = "# coding: ascii\n\N{SNOWMAN}".encode('utf-8')
+        with self.assertRaises(SyntaxError) as c:
+            compile(input, "<string>", "exec")
+        expected = "'ascii' codec can't decode byte 0xe2 in position 16: " \
+                   "ordinal not in range(128)"
+        self.assertTrue(c.exception.args[0].startswith(expected))
+
+
+def test_main():
+    test.support.run_unittest(CodingTest)
+
+if __name__ == "__main__":
+    test_main()