test: add permission fast api test

Signed-off-by: James M Snell <jasnell@gmail.com>

Author: jasnell

test/parallel/test-permission-has-fast-api.js

@@ -0,0 +1,54 @@
+// Flags: --permission --allow-fs-read=* --allow-fs-write=* --allow-natives-syntax --expose-internals --no-warnings
+'use strict';
+
+const common = require('../common');
+const assert = require('assert');
+const { internalBinding } = require('internal/test/binding');
+const path = require('path');
+
+// Test that process.permission.has() uses the V8 fast API path.
+
+// Test with scope only (no resource argument).
+function testHasScope() {
+  assert.strictEqual(process.permission.has('fs.read'), true);
+  assert.strictEqual(process.permission.has('fs.write'), true);
+  assert.strictEqual(process.permission.has('child'), false);
+  assert.strictEqual(process.permission.has('worker'), false);
+}
+
+// Test with scope and resource argument.
+function testHasResource() {
+  assert.strictEqual(process.permission.has('fs.read', __filename), true);
+  assert.strictEqual(process.permission.has('fs.write', __dirname), true);
+  assert.strictEqual(
+    process.permission.has('fs.read', path.resolve('/nonexistent')),
+    true
+  );
+}
+
+// Test with invalid scope (should return false via fast path).
+function testHasInvalid() {
+  assert.strictEqual(process.permission.has('invalid-key'), false);
+}
+
+// Warm up and optimize for the fast API path.
+eval('%PrepareFunctionForOptimization(testHasScope)');
+testHasScope();
+eval('%OptimizeFunctionOnNextCall(testHasScope)');
+testHasScope();
+
+eval('%PrepareFunctionForOptimization(testHasResource)');
+testHasResource();
+eval('%OptimizeFunctionOnNextCall(testHasResource)');
+testHasResource();
+
+eval('%PrepareFunctionForOptimization(testHasInvalid)');
+testHasInvalid();
+eval('%OptimizeFunctionOnNextCall(testHasInvalid)');
+testHasInvalid();
+
+if (common.isDebug) {
+  const { getV8FastApiCallCount } = internalBinding('debug');
+  // After optimization: testHasScope = 4, testHasResource = 3, testHasInvalid = 1
+  assert.strictEqual(getV8FastApiCallCount('permission.has'), 8);
+}