Temporary work on carriage returns.

test/test_get_code.py

@@ -104,3 +104,17 @@ def test_end_newlines():
     test('def a():\n pass', (2, 5))
 
     test('def a(', (1, 6))
+
+
+@pytest.mark.parametrize(('code', 'types'), [
+    ('\r', ['error_leaf', 'endmarker']),
+    ('\n\r', ['error_leaf', 'endmarker'])
+])
+def test_carriage_return_at_end(code, types):
+    """
+    By adding an artificial newline this creates weird side effects for
+    \r at the end of files that would normally be error leafs.
+    """
+    tree = parse(code)
+    assert tree.get_code() == code
+    assert [c.type for c in tree.children] == types

test/test_prefix.py

@@ -15,6 +15,7 @@ import parso
     ('\\', ['\\']),
     ('\\\n', ['\\\n']),
     ('\\\r\n', ['\\\r\n']),
+    ('\t\t\n\t', ['\t\t', '\n', '\t']),
 ])
 def test_simple_prefix_splitting(string, tokens):
     tree = parso.parse(string)
@@ -42,6 +43,7 @@ def test_simple_prefix_splitting(string, tokens):
     ('\r\n', ['newline']),
     ('\f', ['formfeed']),
     ('\\\n', ['backslash']),
+    ('\r', ['newline']),
 ])
 def test_prefix_splitting_types(string, types):
     tree = parso.parse(string)