Merge pull request #551 from scorphus/git-bisect-usage

#N/A: Add `git_bisect_usage` rule

tests/rules/test_git_bisect_usage.py

@@ -0,0 +1,30 @@
+import pytest
+from tests.utils import Command
+from thefuck.rules.git_bisect_usage import match, get_new_command
+
+
+@pytest.fixture
+def stderr():
+    return ("usage: git bisect [help|start|bad|good|new|old"
+            "|terms|skip|next|reset|visualize|replay|log|run]")
+
+
+@pytest.mark.parametrize('script', [
+    'git bisect strt', 'git bisect rset', 'git bisect goood'])
+def test_match(stderr, script):
+    assert match(Command(script=script, stderr=stderr))
+
+
+@pytest.mark.parametrize('script', [
+    'git bisect', 'git bisect start', 'git bisect good'])
+def test_not_match(script):
+    assert not match(Command(script=script, stderr=''))
+
+
+@pytest.mark.parametrize('script, new_cmd, ', [
+    ('git bisect goood', ['good', 'old', 'log']),
+    ('git bisect strt', ['start', 'terms', 'reset']),
+    ('git bisect rset', ['reset', 'next', 'start'])])
+def test_get_new_command(stderr, script, new_cmd):
+    new_cmd = ['git bisect %s' % cmd for cmd in new_cmd]
+    assert get_new_command(Command(script=script, stderr=stderr)) == new_cmd