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#!/bin/bash
# Hook Testing Helper
# Tests a hook with sample input and shows output
set -euo pipefail
# Usage
show_usage() {
echo "Usage: $0 [options] <hook-script> <test-input.json>"
echo ""
echo "Options:"
echo " -h, --help Show this help message"
echo " -v, --verbose Show detailed execution information"
echo " -t, --timeout N Set timeout in seconds (default: 60)"
echo ""
echo "Examples:"
echo " $0 validate-bash.sh test-input.json"
echo " $0 -v -t 30 validate-write.sh write-input.json"
echo ""
echo "Creates sample test input with:"
echo " $0 --create-sample <event-type>"
exit 0
}
# Create sample input
create_sample() {
event_type="$1"
case "$event_type" in
PreToolUse)
cat <<'EOF'
{
"session_id": "test-session",
"transcript_path": "/tmp/transcript.txt",
"cwd": "/tmp/test-project",
"permission_mode": "ask",
"hook_event_name": "PreToolUse",
"tool_name": "Write",
"tool_input": {
"file_path": "/tmp/test.txt",
"content": "Test content"
}
}
EOF
;;
PostToolUse)
cat <<'EOF'
{
"session_id": "test-session",
"transcript_path": "/tmp/transcript.txt",
"cwd": "/tmp/test-project",
"permission_mode": "ask",
"hook_event_name": "PostToolUse",
"tool_name": "Bash",
"tool_result": "Command executed successfully"
}
EOF
;;
Stop|SubagentStop)
cat <<'EOF'
{
"session_id": "test-session",
"transcript_path": "/tmp/transcript.txt",
"cwd": "/tmp/test-project",
"permission_mode": "ask",
"hook_event_name": "Stop",
"reason": "Task appears complete"
}
EOF
;;
UserPromptSubmit)
cat <<'EOF'
{
"session_id": "test-session",
"transcript_path": "/tmp/transcript.txt",
"cwd": "/tmp/test-project",
"permission_mode": "ask",
"hook_event_name": "UserPromptSubmit",
"user_prompt": "Test user prompt"
}
EOF
;;
SessionStart|SessionEnd)
cat <<'EOF'
{
"session_id": "test-session",
"transcript_path": "/tmp/transcript.txt",
"cwd": "/tmp/test-project",
"permission_mode": "ask",
"hook_event_name": "SessionStart"
}
EOF
;;
*)
echo "Unknown event type: $event_type"
echo "Valid types: PreToolUse, PostToolUse, Stop, SubagentStop, UserPromptSubmit, SessionStart, SessionEnd"
exit 1
;;
esac
}
# Parse arguments
VERBOSE=false
TIMEOUT=60
while [ $# -gt 0 ]; do
case "$1" in
-h|--help)
show_usage
;;
-v|--verbose)
VERBOSE=true
shift
;;
-t|--timeout)
TIMEOUT="$2"
shift 2
;;
--create-sample)
create_sample "$2"
exit 0
;;
*)
break
;;
esac
done
if [ $# -ne 2 ]; then
echo "Error: Missing required arguments"
echo ""
show_usage
fi
HOOK_SCRIPT="$1"
TEST_INPUT="$2"
# Validate inputs
if [ ! -f "$HOOK_SCRIPT" ]; then
echo "❌ Error: Hook script not found: $HOOK_SCRIPT"
exit 1
fi
if [ ! -x "$HOOK_SCRIPT" ]; then
echo "⚠️ Warning: Hook script is not executable. Attempting to run with bash..."
HOOK_SCRIPT="bash $HOOK_SCRIPT"
fi
if [ ! -f "$TEST_INPUT" ]; then
echo "❌ Error: Test input not found: $TEST_INPUT"
exit 1
fi
# Validate test input JSON
if ! jq empty "$TEST_INPUT" 2>/dev/null; then
echo "❌ Error: Test input is not valid JSON"
exit 1
fi
echo "🧪 Testing hook: $HOOK_SCRIPT"
echo "📥 Input: $TEST_INPUT"
echo ""
if [ "$VERBOSE" = true ]; then
echo "Input JSON:"
jq . "$TEST_INPUT"
echo ""
fi
# Set up environment
export CLAUDE_PROJECT_DIR="${CLAUDE_PROJECT_DIR:-/tmp/test-project}"
export CLAUDE_PLUGIN_ROOT="${CLAUDE_PLUGIN_ROOT:-$(pwd)}"
export CLAUDE_ENV_FILE="${CLAUDE_ENV_FILE:-/tmp/test-env-$$}"
if [ "$VERBOSE" = true ]; then
echo "Environment:"
echo " CLAUDE_PROJECT_DIR=$CLAUDE_PROJECT_DIR"
echo " CLAUDE_PLUGIN_ROOT=$CLAUDE_PLUGIN_ROOT"
echo " CLAUDE_ENV_FILE=$CLAUDE_ENV_FILE"
echo ""
fi
# Run the hook
echo "▶️ Running hook (timeout: ${TIMEOUT}s)..."
echo ""
start_time=$(date +%s)
set +e
output=$(timeout "$TIMEOUT" bash -c "cat '$TEST_INPUT' | $HOOK_SCRIPT" 2>&1)
exit_code=$?
set -e
end_time=$(date +%s)
duration=$((end_time - start_time))
# Analyze results
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo "Results:"
echo ""
echo "Exit Code: $exit_code"
echo "Duration: ${duration}s"
echo ""
case $exit_code in
0)
echo "✅ Hook approved/succeeded"
;;
2)
echo "🚫 Hook blocked/denied"
;;
124)
echo "⏱️ Hook timed out after ${TIMEOUT}s"
;;
*)
echo "⚠️ Hook returned unexpected exit code: $exit_code"
;;
esac
echo ""
echo "Output:"
if [ -n "$output" ]; then
echo "$output"
echo ""
# Try to parse as JSON
if echo "$output" | jq empty 2>/dev/null; then
echo "Parsed JSON output:"
echo "$output" | jq .
fi
else
echo "(no output)"
fi
# Check for environment file
if [ -f "$CLAUDE_ENV_FILE" ]; then
echo ""
echo "Environment file created:"
cat "$CLAUDE_ENV_FILE"
rm -f "$CLAUDE_ENV_FILE"
fi
echo ""
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
if [ $exit_code -eq 0 ] || [ $exit_code -eq 2 ]; then
echo "✅ Test completed successfully"
exit 0
else
echo "❌ Test failed"
exit 1
fi
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