#591: Add path_from_history rule

tests/rules/test_path_from_history.py

@@ -0,0 +1,43 @@
+import pytest
+from thefuck.rules.path_from_history import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture(autouse=True)
+def history(mocker):
+    return mocker.patch(
+        'thefuck.rules.path_from_history.get_valid_history_without_current',
+        return_value=['cd /opt/java', 'ls ~/work/project/'])
+
+
+@pytest.fixture(autouse=True)
+def path_exists(mocker):
+    path_mock = mocker.patch('thefuck.rules.path_from_history.Path')
+    exists_mock = path_mock.return_value.expanduser.return_value.exists
+    exists_mock.return_value = True
+    return exists_mock
+
+
+@pytest.mark.parametrize('script, stderr', [
+    ('ls project', 'no such file or directory: project'),
+    ('cd project', "can't cd to project"),
+])
+def test_match(script, stderr):
+    assert match(Command(script, stderr=stderr))
+
+
+@pytest.mark.parametrize('script, stderr', [
+    ('myapp cats', 'no such file or directory: project'),
+    ('cd project', ""),
+])
+def test_not_match(script, stderr):
+    assert not match(Command(script, stderr=stderr))
+
+
+@pytest.mark.parametrize('script, stderr, result', [
+    ('ls project', 'no such file or directory: project', 'ls ~/work/project'),
+    ('cd java', "can't cd to java", 'cd /opt/java'),
+])
+def test_get_new_command(script, stderr, result):
+    new_command = get_new_command(Command(script, stderr=stderr))
+    assert new_command[0] == result