add test file for hooks

Author: harryalbert

plugins/warp/tests/test-hooks.sh

@@ -0,0 +1,122 @@
+#!/bin/bash
+# Tests for the Warp Claude Code plugin hook scripts.
+#
+# Validates that each hook script produces correctly structured JSON payloads
+# by piping mock Claude Code hook input into the scripts and checking the output.
+#
+# Usage: ./tests/test-hooks.sh
+#
+# Since the hook scripts write OSC sequences to /dev/tty (not stdout),
+# we test build-payload.sh directly — it's the shared JSON construction logic
+# that all hook scripts use.
+
+set -uo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../scripts" && pwd)"
+source "$SCRIPT_DIR/build-payload.sh"
+
+PASSED=0
+FAILED=0
+
+# --- Test helpers ---
+
+assert_eq() {
+    local test_name="$1"
+    local expected="$2"
+    local actual="$3"
+    if [ "$expected" = "$actual" ]; then
+        echo "  ✓ $test_name"
+        PASSED=$((PASSED + 1))
+    else
+        echo "  ✗ $test_name"
+        echo "    expected: $expected"
+        echo "    actual:   $actual"
+        FAILED=$((FAILED + 1))
+    fi
+}
+
+assert_json_field() {
+    local test_name="$1"
+    local json="$2"
+    local field="$3"
+    local expected="$4"
+    local actual
+    actual=$(echo "$json" | jq -r "$field" 2>/dev/null)
+    assert_eq "$test_name" "$expected" "$actual"
+}
+
+# --- Tests ---
+
+echo "=== build-payload.sh ==="
+
+echo ""
+echo "--- Common fields ---"
+PAYLOAD=$(build_payload '{"session_id":"sess-123","cwd":"/Users/alice/my-project"}' "stop")
+assert_json_field "v is 1" "$PAYLOAD" ".v" "1"
+assert_json_field "agent is claude" "$PAYLOAD" ".agent" "claude"
+assert_json_field "event is stop" "$PAYLOAD" ".event" "stop"
+assert_json_field "session_id extracted" "$PAYLOAD" ".session_id" "sess-123"
+assert_json_field "cwd extracted" "$PAYLOAD" ".cwd" "/Users/alice/my-project"
+assert_json_field "project is basename of cwd" "$PAYLOAD" ".project" "my-project"
+
+echo ""
+echo "--- Common fields with missing data ---"
+PAYLOAD=$(build_payload '{}' "stop")
+assert_json_field "empty session_id" "$PAYLOAD" ".session_id" ""
+assert_json_field "empty cwd" "$PAYLOAD" ".cwd" ""
+assert_json_field "empty project" "$PAYLOAD" ".project" ""
+
+echo ""
+echo "--- Extra args are merged ---"
+PAYLOAD=$(build_payload '{"session_id":"s1","cwd":"/tmp/proj"}' "stop" \
+    --arg query "hello" \
+    --arg response "world")
+assert_json_field "query merged" "$PAYLOAD" ".query" "hello"
+assert_json_field "response merged" "$PAYLOAD" ".response" "world"
+assert_json_field "common fields still present" "$PAYLOAD" ".session_id" "s1"
+
+echo ""
+echo "--- Stop event ---"
+PAYLOAD=$(build_payload '{"session_id":"s1","cwd":"/tmp/proj"}' "stop" \
+    --arg query "write a haiku" \
+    --arg response "Memory is safe, the borrow checker stands guard" \
+    --arg transcript_path "/tmp/transcript.jsonl")
+assert_json_field "event is stop" "$PAYLOAD" ".event" "stop"
+assert_json_field "query present" "$PAYLOAD" ".query" "write a haiku"
+assert_json_field "response present" "$PAYLOAD" ".response" "Memory is safe, the borrow checker stands guard"
+assert_json_field "transcript_path present" "$PAYLOAD" ".transcript_path" "/tmp/transcript.jsonl"
+
+echo ""
+echo "--- Permission request event ---"
+PAYLOAD=$(build_payload '{"session_id":"s1","cwd":"/tmp/proj"}' "permission_request" \
+    --arg summary "Wants to run Bash: rm -rf /tmp" \
+    --arg tool_name "Bash" \
+    --argjson tool_input '{"command":"rm -rf /tmp"}')
+assert_json_field "event is permission_request" "$PAYLOAD" ".event" "permission_request"
+assert_json_field "summary present" "$PAYLOAD" ".summary" "Wants to run Bash: rm -rf /tmp"
+assert_json_field "tool_name present" "$PAYLOAD" ".tool_name" "Bash"
+assert_json_field "tool_input.command present" "$PAYLOAD" ".tool_input.command" "rm -rf /tmp"
+
+echo ""
+echo "--- Idle prompt event ---"
+PAYLOAD=$(build_payload '{"session_id":"s1","cwd":"/tmp/proj","notification_type":"idle_prompt"}' "idle_prompt" \
+    --arg summary "Claude is waiting for your input")
+assert_json_field "event is idle_prompt" "$PAYLOAD" ".event" "idle_prompt"
+assert_json_field "summary present" "$PAYLOAD" ".summary" "Claude is waiting for your input"
+
+echo ""
+echo "--- JSON special characters in values ---"
+PAYLOAD=$(build_payload '{"session_id":"s1","cwd":"/tmp/proj"}' "stop" \
+    --arg query 'what does "hello world" mean?' \
+    --arg response 'It means greeting. Use: printf("hello")')
+assert_json_field "quotes in query preserved" "$PAYLOAD" ".query" 'what does "hello world" mean?'
+assert_json_field "parens in response preserved" "$PAYLOAD" ".response" 'It means greeting. Use: printf("hello")'
+
+# --- Summary ---
+
+echo ""
+echo "=== Results: $PASSED passed, $FAILED failed ==="
+
+if [ "$FAILED" -gt 0 ]; then
+    exit 1
+fi