Use when working with Detox — detox React Native testing management and analysis. Covers test configuration review, device and simulator management, build configuration analysis, test result parsing, artifact collection, and test runner integration. Use when managing Detox test suites, investigating mobile test failures, or reviewing React Native E2E testing configurations.
Manage and analyze Detox end-to-end tests for React Native applications.
#!/bin/bash
# Parse Detox configuration
detox_config() {
if [ -f ".detoxrc.js" ]; then
node -e "const c = require('./.detoxrc.js'); console.log(JSON.stringify(c, null, 2))" 2>/dev/null
elif [ -f "detox.config.js" ]; then
node -e "const c = require('./detox.config.js'); console.log(JSON.stringify(c, null, 2))" 2>/dev/null
else
node -e "const pkg = require('./package.json'); console.log(JSON.stringify(pkg.detox || {}, null, 2))" 2>/dev/null
fi
}
Always discover Detox configuration and device targets before querying specifics.
#!/bin/bash
echo "=== Detox Configuration ==="
detox_config | jq '{
configurations: (.configurations | keys),
devices: (.devices | keys),
apps: (.apps | keys),
testRunner: .testRunner
}' 2>/dev/null
echo ""
echo "=== Detox Version ==="
npx detox --version 2>/dev/null
echo ""
echo "=== Test Files ==="
TEST_DIR=$(detox_config | jq -r '.testRunner.args.testPathPattern // "e2e"' 2>/dev/null || echo "e2e")
find "$TEST_DIR" -name "*.test.ts" -o -name "*.test.js" -o -name "*.spec.ts" -o -name "*.spec.js" 2>/dev/null | head -15
echo ""
echo "=== Available Simulators ==="
xcrun simctl list devices available 2>/dev/null | grep -E "(iPhone|iPad)" | head -10
echo ""
echo "=== Available Emulators ==="
emulator -list-avds 2>/dev/null | head -5
#!/bin/bash
echo "=== Build Configurations ==="
detox_config | jq -r '.apps | to_entries[] | "\(.key)\ttype=\(.value.type)\tbuild=\(.value.build // "none" | .[0:60])"' 2>/dev/null | column -t
echo ""
echo "=== Device Configurations ==="
detox_config | jq -r '.devices | to_entries[] | "\(.key)\ttype=\(.value.type)\tdevice=\(.value.device.type // .value.device.avdName // "unknown")"' 2>/dev/null | column -t
echo ""
echo "=== Test Results ==="
ARTIFACTS_DIR="${DETOX_ARTIFACTS_DIR:-artifacts}"
if [ -d "$ARTIFACTS_DIR" ]; then
LATEST=$(ls -td "$ARTIFACTS_DIR"/*/ 2>/dev/null | head -1)
if [ -n "$LATEST" ]; then
echo "Latest artifacts: $LATEST"
find "$LATEST" -name "*.log" -o -name "*.png" -o -name "*.mp4" 2>/dev/null | wc -l | xargs echo "Artifact files:"
find "$LATEST" -name "*.log" 2>/dev/null | while read f; do
echo "--- $(basename $f) (tail) ---"
tail -5 "$f"
done | head -20
fi
fi
Present results as a structured report:
Managing Detox Report
═════════════════════
Resources discovered: [count]
Resource Status Key Metric Issues
──────────────────────────────────────────────
[name] [ok/warn] [value] [findings]
Summary: [total] resources | [ok] healthy | [warn] warnings | [crit] critical
Action Items: [list of prioritized findings]
Target ≤50 lines of output. Use tables for multi-resource comparisons.
| Shortcut | Counter | Why |
|---|---|---|
| "I'll skip discovery and check known resources" | Always run Phase 1 discovery first | Resource names change, new resources appear — assumed names cause errors |
| "The user only asked for a quick check" | Follow the full discovery → analysis flow | Quick checks miss critical issues; structured analysis catches silent failures |
| "Default configuration is probably fine" | Audit configuration explicitly | Defaults often leave logging, security, and optimization features disabled |
| "Metrics aren't needed for this" | Always check relevant metrics when available | API/CLI responses show current state; metrics reveal trends and intermittent issues |
| "I don't have access to that" | Try the command and report the actual error | Assumed permission failures prevent useful investigation; actual errors are informative |