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Testing Git Commit Reset Command Handling in TheFuck

This test suite validates the git_commit_reset rule functionality in TheFuck project, focusing on command correction behavior after git commit operations. The tests ensure proper matching and command generation for resetting commits.

Test Coverage Overview

The test suite provides comprehensive coverage of the git_commit_reset rule functionality.

Key areas tested include:

Matching git commit commands with and without commit messages
Excluding non-commit git commands from matches
Generating correct reset commands for different commit scenarios

Edge cases cover empty outputs and various git command variations.

Implementation Analysis

The testing approach utilizes pytest’s parametrize decorator to implement data-driven tests efficiently. The implementation follows a clear pattern of separating matching logic tests from command generation tests, leveraging pytest’s powerful parameterization features to test multiple scenarios with minimal code duplication.

Framework-specific features include:

Pytest parametrize for test case variations
Command object usage for input/output handling
Assertion-based validation patterns

Technical Details

Testing tools and configuration:

Pytest as the primary testing framework
Command class from thefuck.types for command representation
Parametrized test fixtures for multiple test cases
Direct assertion patterns for validation

Best Practices Demonstrated

The test suite exemplifies several testing best practices in Python unit testing. It demonstrates clean separation of concerns with distinct test functions for matching and command generation.

Notable practices include:

Comprehensive positive and negative test cases
Efficient test parameterization
Clear test function naming
Focused test scope per function

nvbn/thefuck

tests/rules/test_git_commit_reset.py

            
import pytest
from thefuck.rules.git_commit_reset import match, get_new_command
from thefuck.types import Command


@pytest.mark.parametrize('script, output', [
    ('git commit -m "test"', 'test output'),
    ('git commit', '')])
def test_match(output, script):
    assert match(Command(script, output))


@pytest.mark.parametrize('script', [
    'git branch foo',
    'git checkout feature/test_commit',
    'git push'])
def test_not_match(script):
    assert not match(Command(script, ''))


@pytest.mark.parametrize('script', [
    ('git commit -m "test commit"'),
    ('git commit')])
def test_get_new_command(script):
    assert get_new_command(Command(script, '')) == 'git reset HEAD~'