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api.dsi.sophal.dz/hr_tickets/Python-3.9.6/Lib/test/test_eof.py

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+"""test script for a few new invalid token catches"""
+
+import sys
+from test import support
+from test.support import script_helper
+import unittest
+
+class EOFTestCase(unittest.TestCase):
+    def test_EOFC(self):
+        expect = "EOL while scanning string literal (<string>, line 1)"
+        try:
+            eval("""'this is a test\
+            """)
+        except SyntaxError as msg:
+            self.assertEqual(str(msg), expect)
+        else:
+            raise support.TestFailed
+
+    def test_EOFS(self):
+        expect = ("EOF while scanning triple-quoted string literal "
+                  "(<string>, line 1)")
+        try:
+            eval("""'''this is a test""")
+        except SyntaxError as msg:
+            self.assertEqual(str(msg), expect)
+        else:
+            raise support.TestFailed
+
+    def test_eof_with_line_continuation(self):
+        expect = "unexpected EOF while parsing (<string>, line 1)"
+        try:
+            compile('"\\xhh" \\',  '<string>', 'exec', dont_inherit=True)
+        except SyntaxError as msg:
+            self.assertEqual(str(msg), expect)
+        else:
+            raise support.TestFailed
+
+    def test_line_continuation_EOF(self):
+        """A continuation at the end of input must be an error; bpo2180."""
+        expect = 'unexpected EOF while parsing (<string>, line 1)'
+        with self.assertRaises(SyntaxError) as excinfo:
+            exec('x = 5\\')
+        self.assertEqual(str(excinfo.exception), expect)
+        with self.assertRaises(SyntaxError) as excinfo:
+            exec('\\')
+        self.assertEqual(str(excinfo.exception), expect)
+
+    @unittest.skipIf(not sys.executable, "sys.executable required")
+    def test_line_continuation_EOF_from_file_bpo2180(self):
+        """Ensure tok_nextc() does not add too many ending newlines."""
+        with support.temp_dir() as temp_dir:
+            file_name = script_helper.make_script(temp_dir, 'foo', '\\')
+            rc, out, err = script_helper.assert_python_failure(file_name)
+            self.assertIn(b'unexpected EOF while parsing', err)
+            self.assertIn(b'line 2', err)
+            self.assertIn(b'\\', err)
+
+            file_name = script_helper.make_script(temp_dir, 'foo', 'y = 6\\')
+            rc, out, err = script_helper.assert_python_failure(file_name)
+            self.assertIn(b'unexpected EOF while parsing', err)
+            self.assertIn(b'line 2', err)
+            self.assertIn(b'y = 6\\', err)
+
+if __name__ == "__main__":
+    unittest.main()