intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 50 insertions, 0 deletions

diff --git a/contrib/python/prompt-toolkit/py2/tests/test_shortcuts.py b/contrib/python/prompt-toolkit/py2/tests/test_shortcuts.py
new file mode 100644
index 0000000000..8c13510ea8
--- /dev/null
+++ b/contrib/python/prompt-toolkit/py2/tests/test_shortcuts.py
@@ -0,0 +1,50 @@
+from prompt_toolkit.shortcuts import _split_multiline_prompt
+from prompt_toolkit.token import Token
+
+
+def test_split_multiline_prompt():
+    # Test 1: no newlines:
+    tokens = [(Token, 'ab')]
+    has_before_tokens, before, first_input_line = _split_multiline_prompt(lambda cli: tokens)
+    assert has_before_tokens(None) is False
+    assert before(None) == []
+    assert first_input_line(None) == [
+        (Token, 'a'),
+        (Token, 'b'),
+    ]
+
+    # Test 1: multiple lines.
+    tokens = [(Token, 'ab\ncd\nef')]
+    has_before_tokens, before, first_input_line = _split_multiline_prompt(lambda cli: tokens)
+    assert has_before_tokens(None) is True
+    assert before(None) == [
+        (Token, 'a'),
+        (Token, 'b'),
+        (Token, '\n'),
+        (Token, 'c'),
+        (Token, 'd'),
+    ]
+    assert first_input_line(None) == [
+        (Token, 'e'),
+        (Token, 'f'),
+    ]
+
+    # Edge case 1: starting with a newline.
+    tokens = [(Token, '\nab')]
+    has_before_tokens, before, first_input_line = _split_multiline_prompt(lambda cli: tokens)
+    assert has_before_tokens(None) is True
+    assert before(None) == []
+    assert first_input_line(None) == [
+        (Token, 'a'),
+        (Token, 'b')
+    ]
+
+    # Edge case 2: starting with two newlines.
+    tokens = [(Token, '\n\nab')]
+    has_before_tokens, before, first_input_line = _split_multiline_prompt(lambda cli: tokens)
+    assert has_before_tokens(None) is True
+    assert before(None) == [(Token, '\n')]
+    assert first_input_line(None) == [
+        (Token, 'a'),
+        (Token, 'b')
+    ]