[NotLanded] Implement the fetching algorithm of the Web Manifest.

Source/core/loader/ManifestLoaderTest.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 "core/loader/ManifestLoader.h"
+
+#include "core/dom/Document.h"
+#include "core/html/HTMLHeadElement.h"
+#include "core/html/HTMLLinkElement.h"
+#include "core/loader/EmptyClients.h"
+#include "core/testing/DummyPageHolder.h"
+#include "core/testing/URLTestHelpers.h"
+#include "public/platform/Platform.h"
+#include "public/platform/WebURL.h"
+#include "public/platform/WebURLResponse.h"
+#include "public/platform/WebUnitTestSupport.h"
+#include <gtest/gtest.h>
+
+using namespace blink;
+
+namespace {
+
+class ManifestFrameLoaderClient : public EmptyFrameLoaderClient {
+    WTF_MAKE_NONCOPYABLE(ManifestFrameLoaderClient); WTF_MAKE_FAST_ALLOCATED;
+public:
+    ManifestFrameLoaderClient()
+        : m_succeeded(false)
+        , m_failed(false)
+    {
+    }
+
+    ~ManifestFrameLoaderClient() { }
+
+    virtual void dispatchDidLoadManifest(WebManifest) OVERRIDE
+    {
+        ASSERT(!m_failed && !m_succeeded);
+        m_succeeded = true;
+    }
+
+    virtual void dispatchDidFailLoadManifest(WebManifestError error) OVERRIDE
+    {
+        ASSERT(!m_failed && !m_succeeded);
+        m_failed = true;
+        m_error = error;
+    }
+
+    bool succeeded() const { return m_succeeded; }
+    bool failed() const { return m_failed; }
+    WebManifestError error() const { return m_error; }
+
+private:
+    bool m_succeeded;
+    bool m_failed;
+    WebManifestError m_error;
+};
+
+class ManifestLoaderTest : public ::testing::Test {
+protected:
+    enum CORSType {
+        NoCORS,
+        CORSEmptyString,
+        CORSAnonymous,
+        CORSUseCredentials
+    };
+
+    virtual void SetUp() OVERRIDE;
+    virtual void TearDown() OVERRIDE;
+
+    void setURL(const String& url)
+    {
+        m_url = KURL(ParsedURLString, url);
+    }
+
+    void setupSuccessResponse();
+    void setup404Response();
+    void setupLinkManifest(CORSType);
+    void loadManifestSynchronously();
+
+    Document* document() { return &m_dummyPageHolder->document(); }
+    LocalFrame* frame() { return &m_dummyPageHolder->frame(); }
+    ManifestFrameLoaderClient* frameLoaderClient()
+    {
+        return static_cast<ManifestFrameLoaderClient*>(m_dummyPageHolder->frame().loader().client());
+    }
+
+private:
+    OwnPtr<DummyPageHolder> m_dummyPageHolder;
+    KURL m_url;
+};
+
+void ManifestLoaderTest::SetUp()
+{
+    m_dummyPageHolder = DummyPageHolder::create(IntSize(), 0, adoptPtr(new ManifestFrameLoaderClient));
+    KURL url(ParsedURLString, "http://foo.com/index.html");
+    document()->setURL(url);
+    document()->updateSecurityOrigin(SecurityOrigin::create(url));
+}
+
+void ManifestLoaderTest::TearDown()
+{
+    Platform::current()->unitTestSupport()->unregisterAllMockedURLs();
+}
+
+void ManifestLoaderTest::setupSuccessResponse()
+{
+    ASSERT(!m_url.isNull());
+
+    URLTestHelpers::registerMockedURLLoad(m_url, "dummy_manifest.json", "manifest/", "application/manifest+json");
+}
+
+void ManifestLoaderTest::setup404Response()
+{
+    ASSERT(!m_url.isNull());
+
+    WebURLResponse response;
+    response.initialize();
+    response.setMIMEType("application/manifest+json");
+    response.setHTTPStatusCode(404);
+    response.setURL(m_url);
+
+    WebURLError error;
+    error.reason = 404; // We don't really care but we need a value.
+    Platform::current()->unitTestSupport()->registerMockedErrorURL(m_url, response, error);
+}
+
+void ManifestLoaderTest::setupLinkManifest(CORSType cors)
+{
+    ASSERT(!m_url.isNull());
+
+    RefPtrWillBeRawPtr<HTMLLinkElement> link = HTMLLinkElement::create(*document(), false);
+    link->setAttribute(HTMLNames::relAttr, "manifest");
+    link->setAttribute(HTMLNames::hrefAttr, AtomicString(m_url.string()));
+    switch (cors) {
+    case CORSEmptyString:
+        link->setAttribute(HTMLNames::crossoriginAttr, "");
+        break;
+    case CORSAnonymous:
+        link->setAttribute(HTMLNames::crossoriginAttr, "anonymous");

[kenneth.christiansen, 2014/08/27 14:49:37]

I kind of agree that using separate .html files for each test would make this
easier to understand instead of doing it programmatically. You probably still
need to do something programatically though like the http status code, etc.
which I think is fine.

[mlamouri (slow - plz ping), 2014/09/01 19:23:50]

Done.

+        break;
+    case CORSUseCredentials:
+        link->setAttribute(HTMLNames::crossoriginAttr, "use-credentials");
+        break;
+    case NoCORS:
+        // do nothing.
+        break;
+    }
+    document()->head()->appendChild(link);
+}
+
+void ManifestLoaderTest::loadManifestSynchronously()
+{
+    // This call is wrapped in a helper call on purpose because we want to get
+    // rid of it. It will make the transition to the new model easier.
+    ManifestLoader::loadManifest(PassRefPtr<LocalFrame>(frame()));
+    Platform::current()->unitTestSupport()->serveAsynchronousMockedRequests();
+}
+
+TEST_F(ManifestLoaderTest, NoLinkManifest)
+{
+    loadManifestSynchronously();
+
+    EXPECT_FALSE(frameLoaderClient()->succeeded());
+    EXPECT_TRUE(frameLoaderClient()->failed());
+    EXPECT_EQ(WebManifestError::NoManifest, frameLoaderClient()->error());
+}
+
+TEST_F(ManifestLoaderTest, NoCORSValidURL)
+{
+    setURL("http://foo.com/manifest.json");
+    setupSuccessResponse();
+    setupLinkManifest(NoCORS);
+
+    loadManifestSynchronously();
+
+    EXPECT_TRUE(frameLoaderClient()->succeeded());
+    EXPECT_FALSE(frameLoaderClient()->failed());
+}
+
+TEST_F(ManifestLoaderTest, NoCORSCrossOriginURL)
+{
+    setURL("http://example.com/manifest.json");
+    setupSuccessResponse();
+    setupLinkManifest(NoCORS);
+
+    loadManifestSynchronously();
+
+    EXPECT_TRUE(frameLoaderClient()->succeeded());
+    EXPECT_FALSE(frameLoaderClient()->failed());
+}
+
+TEST_F(ManifestLoaderTest, CORSAnonymousValidURL)
+{
+    setURL("http://foo.com/manifest.json");
+    setupSuccessResponse();
+    setupLinkManifest(CORSAnonymous);
+
+    loadManifestSynchronously();
+
+    EXPECT_TRUE(frameLoaderClient()->succeeded());
+    EXPECT_FALSE(frameLoaderClient()->failed());
+}
+
+TEST_F(ManifestLoaderTest, CORSDefaultValidURL)
+{
+    setURL("http://foo.com/manifest.json");
+    setupSuccessResponse();
+    setupLinkManifest(CORSEmptyString);
+
+    loadManifestSynchronously();
+
+    EXPECT_TRUE(frameLoaderClient()->succeeded());
+    EXPECT_FALSE(frameLoaderClient()->failed());
+}
+
+TEST_F(ManifestLoaderTest, CORSUseCredentialsValidURL)
+{
+    setURL("http://foo.com/manifest.json");
+    setupSuccessResponse();
+    setupLinkManifest(CORSUseCredentials);
+
+    loadManifestSynchronously();
+
+    EXPECT_TRUE(frameLoaderClient()->succeeded());
+    EXPECT_FALSE(frameLoaderClient()->failed());
+}
+
+TEST_F(ManifestLoaderTest, CORSAnonymousCrossOriginURL)
+{
+    setURL("http://example.com/manifest.json");
+    setupSuccessResponse();
+    setupLinkManifest(CORSAnonymous);
+
+    loadManifestSynchronously();
+
+    EXPECT_FALSE(frameLoaderClient()->succeeded());
+    EXPECT_TRUE(frameLoaderClient()->failed());
+    EXPECT_EQ(WebManifestError::FetchError, frameLoaderClient()->error());
+}
+
+TEST_F(ManifestLoaderTest, CORSDefaultCrossOriginURL)
+{
+    setURL("http://example.com/manifest.json");
+    setupSuccessResponse();
+    setupLinkManifest(CORSEmptyString);
+
+    loadManifestSynchronously();
+
+    EXPECT_FALSE(frameLoaderClient()->succeeded());
+    EXPECT_TRUE(frameLoaderClient()->failed());
+    EXPECT_EQ(WebManifestError::FetchError, frameLoaderClient()->error());
+}
+
+TEST_F(ManifestLoaderTest, CORSUseCredentialsCrossOriginURL)
+{
+    setURL("http://example.com/manifest.json");
+    setupSuccessResponse();
+    setupLinkManifest(CORSUseCredentials);
+
+    loadManifestSynchronously();
+
+    EXPECT_FALSE(frameLoaderClient()->succeeded());
+    EXPECT_TRUE(frameLoaderClient()->failed());
+    EXPECT_EQ(WebManifestError::FetchError, frameLoaderClient()->error());
+}
+
+TEST_F(ManifestLoaderTest, NoCORS404URL)
+{
+    setURL("http://foo.com/manifest.json");
+    setup404Response();
+    setupLinkManifest(NoCORS);
+
+    loadManifestSynchronously();
+
+    EXPECT_FALSE(frameLoaderClient()->succeeded());
+    EXPECT_TRUE(frameLoaderClient()->failed());
+    EXPECT_EQ(WebManifestError::FetchError, frameLoaderClient()->error());
+}
+
+TEST_F(ManifestLoaderTest, CORS404URL)
+{
+    setURL("http://foo.com/manifest.json");
+    setup404Response();
+    setupLinkManifest(CORSEmptyString);
+
+    loadManifestSynchronously();
+
+    EXPECT_FALSE(frameLoaderClient()->succeeded());
+    EXPECT_TRUE(frameLoaderClient()->failed());
+    EXPECT_EQ(WebManifestError::FetchError, frameLoaderClient()->error());
+}
+
+TEST_F(ManifestLoaderTest, CORS404CrossOriginURL)
+{
+    setURL("http://example.com/manifest.json");
+    setup404Response();
+    setupLinkManifest(CORSEmptyString);
+
+    loadManifestSynchronously();
+
+    EXPECT_FALSE(frameLoaderClient()->succeeded());
+    EXPECT_TRUE(frameLoaderClient()->failed());
+    EXPECT_EQ(WebManifestError::FetchError, frameLoaderClient()->error());
+}
+
+} // anonymous namespace