#942: Add new git_branch_0v_to_dash_v rule

* fix fuckup `branch 0v` by...

...deleting branch `0v` and running `git branch -v` as the user intended

* use quotes consistently

* provide new  solution implementation based on feedback on PR

* rename files to more accurately reflect their more generic contents

* update import statement to match new file name

* update command name in README.md

* separate out matching tests so the pattern is clear for those who add matches in the future

tests/rules/test_git_branch_flag_0_to_flag_dash_v.py

@@ -0,0 +1,22 @@
+import pytest
+from thefuck.rules.git_branch_flag_0_to_flag_dash_v import match, get_new_command
+from thefuck.types import Command
+
+
+@pytest.fixture
+def output():
+    return ""
+
+
+def test_match_git_branch_0v(output):
+    assert match(Command('git branch 0v', output))
+
+
+def test_matches_no__git_branch_0_anything(output):
+    assert not match(Command('git branch -v', ''))
+    assert not match(Command('ls', output))
+
+
+def test_get_new_command(output):
+    assert get_new_command(Command('git branch 0v', output))\
+        == 'git branch -D 0v && git branch -v'