Testing & QA Skill

Test execution with coverage analysis and quality reporting.

Quick Start

# Run all tests
/sc:test

# Unit tests with coverage
/sc:test src/components --type unit --coverage

# Watch mode with auto-fix
/sc:test --watch --fix

# Web search for testing guidance (uses Rube MCP's LINKUP_SEARCH)
/sc:test --linkup --query "pytest asyncio best practices"

Behavioral Flow

1. Discover – Categorize tests using runner patterns
2. Configure – Set up test environment and parameters
3. Execute – Run tests with real-time progress tracking
4. Analyze – Generate coverage reports and diagnostics
5. Report – Provide recommendations and quality metrics

Flags

Personas Activated

• qa-specialist – Test analysis and quality assessment

MCP Integration

PAL MCP (Quality & Debugging)

PAL Usage Patterns

# Debug failing test
mcp__pal__debug(
    step="Investigating intermittent test failure",
    hypothesis="Race condition in async setup",
    confidence="medium",
    relevant_files=["/tests/test_api.py"]
)

# Review test quality
mcp__pal__codereview(
    review_type="full",
    findings="Test coverage, assertion quality, edge cases",
    focus_on="test isolation and mocking patterns"
)

# Validate testing strategy
mcp__pal__consensus(
    models=[{"model": "gpt-5.2", "stance": "neutral"}, {"model": "gemini-3-pro", "stance": "neutral"}],
    step="Evaluate: Is integration testing sufficient for this feature?"
)

Rube MCP (Automation & Research)

Rube Usage Patterns

# Search for testing best practices (--linkup flag uses LINKUP_SEARCH)
mcp__rube__RUBE_MULTI_EXECUTE_TOOL(tools=[
    {"tool_slug": "LINKUP_SEARCH", "arguments": {
        "query": "pytest fixtures best practices",
        "depth": "deep",
        "output_type": "sourcedAnswer"
    }}
])

# Post test results to Slack
mcp__rube__RUBE_MULTI_EXECUTE_TOOL(tools=[
    {"tool_slug": "SLACK_SEND_MESSAGE", "arguments": {
        "channel": "#ci-results",
        "text": "Test run complete: 95% pass rate, 87% coverage"
    }}
])

# Update Jira with test status
mcp__rube__RUBE_MULTI_EXECUTE_TOOL(tools=[
    {"tool_slug": "JIRA_ADD_COMMENT", "arguments": {
        "issue_key": "PROJ-123",
        "body": "All tests passing. Ready for review."
    }}
])

## Evidence Requirements

This skill requires evidence. You MUST:
- Show test execution output and pass/fail counts
- Reference coverage metrics when `--coverage` used
- Provide actual error messages for failures

## Test Types

### Unit Tests (`--type unit`)
- Isolated component testing
- Mock dependencies
- Fast execution

### Integration Tests (`--type integration`)
- Component interaction testing
- Database/API integration
- Service dependencies

### E2E Tests (`--type e2e`)
- Full user flow testing
- Browser automation guidance
- Cross-platform validation

## Coverage Analysis

When `--coverage` is enabled:
- Line coverage metrics
- Branch coverage metrics
- Uncovered code identification
- Coverage trend comparison

## Examples

### Targeted Unit Tests

/sc:test src/utils –type unit –coverage

### Continuous Development

/sc:test –watch –fix

Real-time feedback during development

### Integration Suite

/sc:test –type integration –coverage

### Web Research

/sc:test –linkup –query “vitest react testing library patterns”

## Tool Coordination

- **Bash** - Test runner execution
- **Glob** - Test file discovery
- **Grep** - Result parsing, failure analysis
- **Write** - Coverage reports, test summaries