Introducing the WebServiceWorkerCache.

Source/modules/serviceworkers/CacheTest.cpp

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+
+#include "bindings/core/v8/ExceptionState.h"
+#include "bindings/core/v8/ScriptFunction.h"
+#include "bindings/core/v8/ScriptPromise.h"
+#include "bindings/core/v8/ScriptValue.h"
+#include "bindings/core/v8/V8Binding.h"
+#include "bindings/modules/v8/V8Request.h"
+#include "bindings/modules/v8/V8Response.h"
+#include "core/dom/Document.h"
+#include "core/frame/Frame.h"
+#include "core/testing/DummyPageHolder.h"
+#include "modules/serviceworkers/Cache.h"
+#include "modules/serviceworkers/Request.h"
+#include "modules/serviceworkers/Response.h"
+#include "public/platform/WebServiceWorkerCache.h"
+#include "wtf/OwnPtr.h"
+
+#include <algorithm>
+#include <gtest/gtest.h>
+
+namespace blink {
+namespace {
+
+// A test implementation of the WebServiceWorkerCache interface which returns a (provided) error for every operation, and optionally checks arguments
+// to methods against provided arguments. Also used as a base class for test specific caches.
+class ErrorWebCacheForTests : public WebServiceWorkerCache {
+public:
+    ErrorWebCacheForTests(const WebServiceWorkerCacheError error)
+        : m_error(error)
+        , m_expectedUrl(0)
+        , m_expectedQueryParams(0)
+        , m_expectedBatchOperations(0) { }
+
+    String getAndClearLastErrorWebCacheMethodCalled()
+    {
+        String old = m_lastErrorWebCacheMethodCalled;
+        m_lastErrorWebCacheMethodCalled = "";
+        return old;
+    }
+
+    // These methods do not take ownership of their parameter. They provide an optional sample object to check parameters against. We purposefully avoid
+    // deep inspecting WebFoo objects for strict equality and test only for sanity, trusting the WebFoo test to catch lurking problems earlier.
+    void setExpectedUrl(const String* expectedUrl) { m_expectedUrl = expectedUrl; }
+    void setExpectedQueryParams(const QueryParams* expectedQueryParams) { m_expectedQueryParams = expectedQueryParams; }
+    void setExpectedBatchOperations(const WebVector<BatchOperation>* expectedBatchOperations) { m_expectedBatchOperations = expectedBatchOperations; }
+
+    // From WebServiceWorkerCache:
+    virtual void dispatchMatch(CacheMatchCallbacks* callbacks, const WebServiceWorkerRequest& webRequest, const QueryParams& queryParams) OVERRIDE
+    {
+        m_lastErrorWebCacheMethodCalled = "dispatchMatch";
+        CheckUrlIfProvided(webRequest.url());
+        CheckQueryParamsIfProvided(queryParams);
+
+        OwnPtr<CacheMatchCallbacks> ownedCallbacks(adoptPtr(callbacks));
+        WebServiceWorkerCacheError error = m_error;
+        return callbacks->onError(&error);
+    }
+
+    virtual void dispatchMatchAll(CacheWithResponsesCallbacks* callbacks, const WebServiceWorkerRequest& webRequest, const QueryParams& queryParams) OVERRIDE
+    {
+        m_lastErrorWebCacheMethodCalled = "dispatchMatchAll";
+        CheckUrlIfProvided(webRequest.url());
+        CheckQueryParamsIfProvided(queryParams);
+
+        OwnPtr<CacheWithResponsesCallbacks> ownedCallbacks(adoptPtr(callbacks));
+        WebServiceWorkerCacheError error = m_error;
+        return callbacks->onError(&error);
+    }
+
+    virtual void dispatchKeys(CacheWithRequestsCallbacks* callbacks, const WebServiceWorkerRequest* webRequest, const QueryParams& queryParams) OVERRIDE
+    {
+        m_lastErrorWebCacheMethodCalled = "dispatchKeys";
+        if (webRequest) {
+            CheckUrlIfProvided(webRequest->url());
+            CheckQueryParamsIfProvided(queryParams);
+        }
+
+        OwnPtr<CacheWithRequestsCallbacks> ownedCallbacks(adoptPtr(callbacks));
+        WebServiceWorkerCacheError error = m_error;
+        return callbacks->onError(&error);
+    }
+
+    virtual void dispatchBatch(CacheWithResponsesCallbacks* callbacks, const WebVector<BatchOperation>& batchOperations) OVERRIDE
+    {
+        m_lastErrorWebCacheMethodCalled = "dispatchBatch";
+        CheckBatchOperationsIfProvided(batchOperations);
+
+        OwnPtr<CacheWithResponsesCallbacks> ownedCallbacks(adoptPtr(callbacks));
+        WebServiceWorkerCacheError error = m_error;
+        return callbacks->onError(&error);
+    }
+
+protected:
+    void CheckUrlIfProvided(const KURL& url)
+    {
+        if (!m_expectedUrl)
+            return;
+        EXPECT_EQ(*m_expectedUrl, url);
+    }
+
+    void CheckQueryParamsIfProvided(const QueryParams& queryParams)
+    {
+        if (!m_expectedQueryParams)
+            return;
+        CompareQueryParamsForTest(*m_expectedQueryParams, queryParams);
+    }
+
+    void CheckBatchOperationsIfProvided(const WebVector<BatchOperation>& batchOperations)
+    {
+        if (!m_expectedBatchOperations)
+            return;
+        const WebVector<BatchOperation> expectedBatchOperations = *m_expectedBatchOperations;
+        EXPECT_EQ(expectedBatchOperations.size(), batchOperations.size());
+        for (int i = 0, minsize = std::min(expectedBatchOperations.size(), batchOperations.size()); i < minsize; ++i) {
+            EXPECT_EQ(expectedBatchOperations[i].operationType, batchOperations[i].operationType);
+            const String expectedRequestUrl = KURL(expectedBatchOperations[i].request.url());
+            EXPECT_EQ(expectedRequestUrl, KURL(batchOperations[i].request.url()));
+            const String expectedResponseUrl = KURL(expectedBatchOperations[i].response.url());
+            EXPECT_EQ(expectedResponseUrl, KURL(batchOperations[i].response.url()));
+            CompareQueryParamsForTest(expectedBatchOperations[i].matchParams, batchOperations[i].matchParams);
+        }
+    }
+
+private:
+    static void CompareQueryParamsForTest(const QueryParams& expectedQueryParams, const QueryParams& queryParams)
+    {
+        EXPECT_EQ(expectedQueryParams.ignoreSearch, queryParams.ignoreSearch);
+        EXPECT_EQ(expectedQueryParams.ignoreMethod, queryParams.ignoreMethod);
+        EXPECT_EQ(expectedQueryParams.ignoreVary, queryParams.ignoreVary);
+        EXPECT_EQ(expectedQueryParams.prefixMatch, queryParams.prefixMatch);
+        EXPECT_EQ(expectedQueryParams.cacheName, queryParams.cacheName);
+    }
+
+    const WebServiceWorkerCacheError m_error;
+
+    const String* m_expectedUrl;
+    const QueryParams* m_expectedQueryParams;
+    const WebVector<BatchOperation>* m_expectedBatchOperations;
+
+    String m_lastErrorWebCacheMethodCalled;
+};
+
+class NotImplementedErrorCache : public ErrorWebCacheForTests {
+public:
+    NotImplementedErrorCache() : ErrorWebCacheForTests(WebServiceWorkerCacheErrorNotImplemented) { }
+};
+
+class ServiceWorkerCacheTest : public ::testing::Test {
+public:
+    ServiceWorkerCacheTest()
+        : m_page(DummyPageHolder::create(IntSize(1, 1))) { }
+
+    ScriptState* scriptState() { return ScriptState::forMainWorld(m_page->document().frame()); }
+    ExecutionContext* executionContext() { return scriptState()->executionContext(); }
+    v8::Isolate* isolate() { return scriptState()->isolate(); }
+
+    // Convenience methods for testing the returned promises.
+    ScriptValue getRejectValue(ScriptPromise& promise)
+    {
+        ScriptValue onReject;
+        promise.then(NullFunction::create(scriptState()), Function::create(scriptState(), &onReject));
+        isolate()->RunMicrotasks();
+        return onReject;
+    }
+
+    String getRejectString(ScriptPromise& promise)
+    {
+        ScriptValue onReject = getRejectValue(promise);
+        return toCoreString(onReject.v8Value()->ToString());
+    }
+
+    ScriptValue getResolveValue(ScriptPromise& promise)
+    {
+        ScriptValue onResolve;
+        promise.then(Function::create(scriptState(), &onResolve), NullFunction::create(scriptState()));
+        isolate()->RunMicrotasks();
+        return onResolve;
+    }
+
+    String getResolveString(ScriptPromise& promise)
+    {
+        ScriptValue onResolve = getResolveValue(promise);
+        return toCoreString(onResolve.v8Value()->ToString());
+    }
+
+    void expectNotImplemented(ScriptPromise& promise)
+    {
+        EXPECT_EQ("NotSupportedError: Method is not implemented.", getRejectString(promise));
+    }
+
+private:
+    // A ScriptFunction that creates a test failure if it is ever called.
+    class NullFunction : public ScriptFunction {
+    public:
+        static v8::Handle<v8::Function> create(ScriptState* scriptState)
+        {
+            NullFunction* self = new NullFunction(scriptState);
+            return self->bindToV8Function();
+        }
+
+        virtual ScriptValue call(ScriptValue value) OVERRIDE
+        {
+            ADD_FAILURE() << "Unexpected call to a null ScriptFunction.";
+            return value;
+        }
+    private:
+        NullFunction(ScriptState* scriptState) : ScriptFunction(scriptState) { }
+    };
+
+    class Function : public ScriptFunction {
+    public:
+        static v8::Handle<v8::Function> create(ScriptState* scriptState, ScriptValue* outValue)
+        {
+            Function* self = new Function(scriptState, outValue);
+            return self->bindToV8Function();
+        }
+
+        virtual ScriptValue call(ScriptValue value) OVERRIDE
+        {
+            ASSERT(!value.isEmpty());
+            *m_value = value;
+            return value;
+        }
+
+        const ScriptValue& scriptValue() { return *m_value; }
+
+    private:
+        Function(ScriptState* scriptState, ScriptValue* outValue) : ScriptFunction(scriptState), m_value(outValue) { }
+
+        ScriptValue* m_value;
+    };
+
+    // From ::testing::Test:
+    virtual void SetUp() OVERRIDE
+    {
+        EXPECT_FALSE(m_scriptScope);
+        m_scriptScope = adoptPtr(new ScriptState::Scope(scriptState()));
+    }
+
+    virtual void TearDown() OVERRIDE
+    {
+        m_scriptScope = 0;
+    }
+
+    // Lifetime is that of the text fixture.
+    OwnPtr<DummyPageHolder> m_page;
+
+    // Lifetime is per test instance.
+    OwnPtr<ScriptState::Scope> m_scriptScope;
+};
+
+TEST_F(ServiceWorkerCacheTest, Basics)
+{
+    ErrorWebCacheForTests* testCache;
+    RefPtrWillBeRawPtr<Cache> cache = Cache::fromWebServiceWorkerCache(testCache = new NotImplementedErrorCache());
+    ASSERT(cache);
+
+    const String url = "http://www.cachetest.org/";
+
+    ScriptPromise matchPromise = cache->match(scriptState(), url, Dictionary());
+    expectNotImplemented(matchPromise);
+
+    cache = Cache::fromWebServiceWorkerCache(testCache = new ErrorWebCacheForTests(WebServiceWorkerCacheErrorNotFound));
+    matchPromise = cache->match(scriptState(), url, Dictionary());
+    EXPECT_EQ("NotFoundError: Entry was not found.", getRejectString(matchPromise));
+
+    cache = Cache::fromWebServiceWorkerCache(testCache = new ErrorWebCacheForTests(WebServiceWorkerCacheErrorExists));
+    matchPromise = cache->match(scriptState(), url, Dictionary());
+    EXPECT_EQ("InvalidAccessError: Entry already exists.", getRejectString(matchPromise));
+}
+
+// Tests that arguments are faithfully passed on calls to Cache methods, except for methods which use batch operations,
+// which are tested later.
+TEST_F(ServiceWorkerCacheTest, BasicArguments)
+{
+    ErrorWebCacheForTests* testCache;
+    RefPtrWillBeRawPtr<Cache> cache = Cache::fromWebServiceWorkerCache(testCache = new NotImplementedErrorCache());
+    ASSERT(cache);
+
+    const String url = "http://www.cache.arguments.test/";
+    testCache->setExpectedUrl(&url);
+
+    WebServiceWorkerCache::QueryParams expectedQueryParams;
+    expectedQueryParams.ignoreVary = true;
+    expectedQueryParams.cacheName = "this is a cache name";
+    testCache->setExpectedQueryParams(&expectedQueryParams);
+
+    Dictionary queryParamsDict = Dictionary::createEmpty(isolate());
+    queryParamsDict.set("ignoreVary", 1);
+    queryParamsDict.set("cacheName", expectedQueryParams.cacheName);
+
+    TrackExceptionState exceptionState;
+    const RefPtrWillBeRawPtr<Request> request = Request::create(executionContext(), url, exceptionState);
+    ASSERT(request);
+    ASSERT_FALSE(exceptionState.hadException());
+
+    ScriptPromise matchResult = cache->match(scriptState(), request.get(), queryParamsDict);
+    EXPECT_EQ("dispatchMatch", testCache->getAndClearLastErrorWebCacheMethodCalled());
+    expectNotImplemented(matchResult);
+
+    ScriptPromise stringMatchResult = cache->match(scriptState(), url, queryParamsDict);
+    EXPECT_EQ("dispatchMatch", testCache->getAndClearLastErrorWebCacheMethodCalled());
+    expectNotImplemented(stringMatchResult);
+
+    ScriptPromise matchAllResult = cache->matchAll(scriptState(), request.get(), queryParamsDict);
+    EXPECT_EQ("dispatchMatchAll", testCache->getAndClearLastErrorWebCacheMethodCalled());
+    expectNotImplemented(matchAllResult);
+
+    ScriptPromise stringMatchAllResult = cache->matchAll(scriptState(), url, queryParamsDict);
+    EXPECT_EQ("dispatchMatchAll", testCache->getAndClearLastErrorWebCacheMethodCalled());
+    expectNotImplemented(stringMatchAllResult);
+
+    ScriptPromise keysResult1 = cache->keys(scriptState());
+    EXPECT_EQ("dispatchKeys", testCache->getAndClearLastErrorWebCacheMethodCalled());
+    expectNotImplemented(keysResult1);
+
+    ScriptPromise keysResult2 = cache->keys(scriptState(), request.get(), queryParamsDict);
+    EXPECT_EQ("dispatchKeys", testCache->getAndClearLastErrorWebCacheMethodCalled());
+    expectNotImplemented(keysResult2);
+
+    ScriptPromise stringKeysResult2 = cache->keys(scriptState(), url, queryParamsDict);
+    EXPECT_EQ("dispatchKeys", testCache->getAndClearLastErrorWebCacheMethodCalled());
+    expectNotImplemented(stringKeysResult2);
+}
+
+// Tests that arguments are faithfully passed to API calls that degrade to batch operations.
+TEST_F(ServiceWorkerCacheTest, BatchOperationArguments)
+{
+    ErrorWebCacheForTests* testCache;
+    RefPtrWillBeRawPtr<Cache> cache = Cache::fromWebServiceWorkerCache(testCache = new NotImplementedErrorCache());
+    ASSERT(cache);
+
+    WebServiceWorkerCache::QueryParams expectedQueryParams;
+    expectedQueryParams.prefixMatch = true;
+    expectedQueryParams.cacheName = "this is another cache name";
+    testCache->setExpectedQueryParams(&expectedQueryParams);
+
+    Dictionary queryParamsDict = Dictionary::createEmpty(isolate());
+    queryParamsDict.set("prefixMatch", 1);
+    queryParamsDict.set("cacheName", expectedQueryParams.cacheName);
+
+    const String url = "http://batch.operations.test/";
+    TrackExceptionState exceptionState;
+    const RefPtrWillBeRawPtr<Request> request = Request::create(executionContext(), url, exceptionState);
+    ASSERT(request);
+    ASSERT_FALSE(exceptionState.hadException());
+
+    WebServiceWorkerResponse webResponse;
+    webResponse.setURL(KURL(ParsedURLString, url));
+    const RefPtrWillBeRawPtr<Response> response = Response::create(webResponse);
+
+    WebVector<WebServiceWorkerCache::BatchOperation> expectedDeleteOperations(size_t(1));
+    {
+        WebServiceWorkerCache::BatchOperation deleteOperation;
+        deleteOperation.operationType = WebServiceWorkerCache::WebServiceWorkerCacheOperationTypeDelete;
+        request->populateWebServiceWorkerRequest(deleteOperation.request);
+        deleteOperation.matchParams = expectedQueryParams;
+        expectedDeleteOperations[0] = deleteOperation;
+    }
+    testCache->setExpectedBatchOperations(&expectedDeleteOperations);
+
+    ScriptPromise deleteResult = cache->deleteFunction(scriptState(), request.get(), queryParamsDict);
+    EXPECT_EQ("dispatchBatch", testCache->getAndClearLastErrorWebCacheMethodCalled());
+    expectNotImplemented(deleteResult);
+
+    ScriptPromise stringDeleteResult = cache->deleteFunction(scriptState(), url, queryParamsDict);
+    EXPECT_EQ("dispatchBatch", testCache->getAndClearLastErrorWebCacheMethodCalled());
+    expectNotImplemented(stringDeleteResult);
+
+    WebVector<WebServiceWorkerCache::BatchOperation> expectedPutOperations(size_t(1));
+    {
+        WebServiceWorkerCache::BatchOperation putOperation;
+        putOperation.operationType = WebServiceWorkerCache::WebServiceWorkerCacheOperationTypePut;
+        request->populateWebServiceWorkerRequest(putOperation.request);
+        response->populateWebServiceWorkerResponse(putOperation.response);
+        expectedPutOperations[0] = putOperation;
+    }
+    testCache->setExpectedBatchOperations(&expectedPutOperations);
+
+    ScriptPromise putResult = cache->put(scriptState(), request.get(), response.get());
+    EXPECT_EQ("dispatchBatch", testCache->getAndClearLastErrorWebCacheMethodCalled());
+    expectNotImplemented(putResult);
+
+    ScriptPromise stringPutResult = cache->put(scriptState(), url, response.get());
+    EXPECT_EQ("dispatchBatch", testCache->getAndClearLastErrorWebCacheMethodCalled());
+    expectNotImplemented(stringPutResult);
+
+    // FIXME: test add & addAll.
+}
+
+class MatchTestCache : public NotImplementedErrorCache {
+public:
+    MatchTestCache(WebServiceWorkerResponse& response)
+        : m_response(response) { }
+
+    // From WebServiceWorkerCache:
+    virtual void dispatchMatch(CacheMatchCallbacks* callbacks, const WebServiceWorkerRequest& webRequest, const QueryParams& queryParams) OVERRIDE
+    {
+        OwnPtr<CacheMatchCallbacks> ownedCallbacks(adoptPtr(callbacks));
+        return callbacks->onSuccess(&m_response);
+    }
+
+private:
+    WebServiceWorkerResponse& m_response;
+};
+
+TEST_F(ServiceWorkerCacheTest, MatchResponseTest)
+{
+    const String requestUrl = "http://request.url/";
+    const String responseUrl = "http://match.response.test/";
+
+    WebServiceWorkerResponse webResponse;
+    webResponse.setURL(KURL(ParsedURLString, responseUrl));
+
+    RefPtrWillBeRawPtr<Cache> cache = Cache::fromWebServiceWorkerCache(new MatchTestCache(webResponse));
+
+    ScriptPromise result = cache->match(scriptState(), requestUrl, Dictionary());
+    ScriptValue scriptValue = getResolveValue(result);
+    Response* response = V8Response::toNativeWithTypeCheck(isolate(), scriptValue.v8Value());
+    ASSERT_TRUE(response);
+    EXPECT_EQ(responseUrl, response->url());
+}
+
+class KeysTestCache : public NotImplementedErrorCache {
+public:
+    KeysTestCache(WebVector<WebServiceWorkerRequest>& requests)
+        : m_requests(requests) { }
+
+    virtual void dispatchKeys(CacheWithRequestsCallbacks* callbacks, const WebServiceWorkerRequest* webRequest, const QueryParams& queryParams) OVERRIDE
+    {
+        OwnPtr<CacheWithRequestsCallbacks> ownedCallbacks(adoptPtr(callbacks));
+        return callbacks->onSuccess(&m_requests);
+    }
+
+private:
+    WebVector<WebServiceWorkerRequest>& m_requests;
+};
+
+TEST_F(ServiceWorkerCacheTest, KeysResponseTest)
+{
+    const String url1 = "http://first.request/";
+    const String url2 = "http://second.request/";
+
+    Vector<String> expectedUrls(size_t(2));
+    expectedUrls[0] = url1;
+    expectedUrls[1] = url2;
+
+    WebVector<WebServiceWorkerRequest> webRequests(size_t(2));
+    webRequests[0].setURL(KURL(ParsedURLString, url1));
+    webRequests[1].setURL(KURL(ParsedURLString, url2));
+
+    RefPtrWillBeRawPtr<Cache> cache = Cache::fromWebServiceWorkerCache(new KeysTestCache(webRequests));
+
+    ScriptPromise result = cache->keys(scriptState());
+    ScriptValue scriptValue = getResolveValue(result);
+
+    Vector<v8::Handle<v8::Value> > requests = toNativeArray<v8::Handle<v8::Value> >(scriptValue.v8Value(), 0, isolate());
+    EXPECT_EQ(expectedUrls.size(), requests.size());
+    for (int i = 0, minsize = std::min(expectedUrls.size(), requests.size()); i < minsize; ++i) {
+        Request* request = V8Request::toNativeWithTypeCheck(isolate(), requests[i]);
+        EXPECT_TRUE(request);
+        if (request)
+            EXPECT_EQ(expectedUrls[i], request->url());
+    }
+}
+
+class MatchAllAndBatchTestCache : public NotImplementedErrorCache {
+public:
+    MatchAllAndBatchTestCache(WebVector<WebServiceWorkerResponse>& responses)
+        : m_responses(responses) { }
+
+    virtual void dispatchMatchAll(CacheWithResponsesCallbacks* callbacks, const WebServiceWorkerRequest& webRequest, const QueryParams& queryParams) OVERRIDE
+    {
+        OwnPtr<CacheWithResponsesCallbacks> ownedCallbacks(adoptPtr(callbacks));
+        return callbacks->onSuccess(&m_responses);
+    }
+
+    virtual void dispatchBatch(CacheWithResponsesCallbacks* callbacks, const WebVector<BatchOperation>& batchOperations) OVERRIDE
+    {
+        OwnPtr<CacheWithResponsesCallbacks> ownedCallbacks(adoptPtr(callbacks));
+        return callbacks->onSuccess(&m_responses);
+    }
+
+private:
+    WebVector<WebServiceWorkerResponse>& m_responses;
+};
+
+TEST_F(ServiceWorkerCacheTest, MatchAllAndBatchResponseTest)
+{
+    const String url1 = "http://first.response/";
+    const String url2 = "http://second.response/";
+
+    Vector<String> expectedUrls(size_t(2));
+    expectedUrls[0] = url1;
+    expectedUrls[1] = url2;
+
+    WebVector<WebServiceWorkerResponse> webResponses(size_t(2));
+    webResponses[0].setURL(KURL(ParsedURLString, url1));
+    webResponses[1].setURL(KURL(ParsedURLString, url2));
+
+    RefPtrWillBeRawPtr<Cache> cache = Cache::fromWebServiceWorkerCache(new MatchAllAndBatchTestCache(webResponses));
+
+    ScriptPromise result = cache->matchAll(scriptState(), "http://some.url/", Dictionary());
+    ScriptValue scriptValue = getResolveValue(result);
+
+    Vector<v8::Handle<v8::Value> > responses = toNativeArray<v8::Handle<v8::Value> >(scriptValue.v8Value(), 0, isolate());
+    EXPECT_EQ(expectedUrls.size(), responses.size());
+    for (int i = 0, minsize = std::min(expectedUrls.size(), responses.size()); i < minsize; ++i) {
+        Response* response = V8Response::toNativeWithTypeCheck(isolate(), responses[i]);
+        EXPECT_TRUE(response);
+        if (response)
+            EXPECT_EQ(expectedUrls[i], response->url());
+    }
+
+    result = cache->deleteFunction(scriptState(), "http://some.url/", Dictionary());
+    scriptValue = getResolveValue(result);
+    responses = toNativeArray<v8::Handle<v8::Value> >(scriptValue.v8Value(), 0, isolate());
+    EXPECT_EQ(expectedUrls.size(), responses.size());
+    for (int i = 0, minsize = std::min(expectedUrls.size(), responses.size()); i < minsize; ++i) {
+        Response* response = V8Response::toNativeWithTypeCheck(isolate(), responses[i]);
+        EXPECT_TRUE(response);
+        if (response)
+            EXPECT_EQ(expectedUrls[i], response->url());
+    }
+}
+
+} // namespace
+} // namespace blink