// Copyright (c) 2017-2022 Cloudflare, Inc.
// Licensed under the Apache 2.0 license found in the LICENSE file or at:
//     https://opensource.org/licenses/Apache-2.0

#include "dom-exception.h"
#include "jsg-test.h"

namespace workerd::jsg::test {
namespace {

V8System v8System;

struct DOMExceptionContext: public Object, public ContextGlobal {
  JSG_RESOURCE_TYPE(DOMExceptionContext) {
    JSG_NESTED_TYPE(DOMException);
  }
};
JSG_DECLARE_ISOLATE_TYPE(DOMExceptionIsolate, DOMExceptionContext);

KJ_TEST("DOMException's prototype is ErrorPrototype") {
  Evaluator<DOMExceptionContext, DOMExceptionIsolate> e(v8System);
  e.expectEval(
      "Object.getPrototypeOf(DOMException.prototype) === Error.prototype", "boolean", "true");
}

KJ_TEST("DOMException has a stack property") {
  Evaluator<DOMExceptionContext, DOMExceptionIsolate> e(v8System);
  e.expectEval("function throwError() { throw new DOMException('test error') }\n"
               "try { throwError() } catch (e) { e.stack }",
      "string",
      "Error: test error\n"
      "    at throwError (<anonymous>:1:31)\n"
      "    at <anonymous>:2:7");
}

KJ_TEST("DOMException has legacy code constants") {
  Evaluator<DOMExceptionContext, DOMExceptionIsolate> e(v8System);
  // Test a subset of error codes that commonly appear in web APIs.
  e.expectEval("DOMException.INDEX_SIZE_ERR === 1", "boolean", "true");
  e.expectEval("DOMException.NOT_SUPPORTED_ERR === 9", "boolean", "true");
  e.expectEval("DOMException.SYNTAX_ERR === 12", "boolean", "true");
  e.expectEval("DOMException.INVALID_ACCESS_ERR === 15", "boolean", "true");
  e.expectEval("DOMException.TYPE_MISMATCH_ERR === 17", "boolean", "true");
  e.expectEval("DOMException.QUOTA_EXCEEDED_ERR === 22", "boolean", "true");
  e.expectEval("DOMException.DATA_CLONE_ERR === 25", "boolean", "true");
}

KJ_TEST("jsg::Lock domException") {
  Evaluator<DOMExceptionContext, DOMExceptionIsolate> e(v8System);
  e.getIsolate().runInLockScope([&](DOMExceptionIsolate::Lock& lock) {
    JSG_WITHIN_CONTEXT_SCOPE(lock,
        lock.template newContext<DOMExceptionContext>().getHandle(lock.v8Isolate),
        [&](jsg::Lock& js) {
      Ref<DOMException> exception = js.domException(kj::str("foo"), kj::str("bar"));

      // The DOMException object should have the JS handle created already.
      auto handle = JsObject(KJ_ASSERT_NONNULL(exception.tryGetHandle(js)));

      // And it will have the stack.
      KJ_ASSERT(handle.has(js, "stack"_kj));

      KJ_ASSERT(exception->getName() == "foo"_kj);
      KJ_ASSERT(exception->getMessage() == "bar"_kj);
    });
  });
}

}  // namespace
}  // namespace workerd::jsg::test