Tie multibuffers to URLs

media/blink/resource_multibuffer_data_provider_unittest.cc

Index: media/blink/resource_multibuffer_data_provider_unittest.cc
diff --git a/media/blink/resource_multibuffer_data_provider_unittest.cc b/media/blink/resource_multibuffer_data_provider_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..a60edeb1df2d64b0f2e817ee27d3633f6ac4a50c
--- /dev/null
+++ b/media/blink/resource_multibuffer_data_provider_unittest.cc
@@ -0,0 +1,330 @@
+// Copyright 2015 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 <algorithm>
+#include <string>
+
+#include "base/bind.h"
+#include "base/format_macros.h"
+#include "base/message_loop/message_loop.h"
+#include "base/strings/stringprintf.h"
+#include "media/base/media_log.h"
+#include "media/base/seekable_buffer.h"
+#include "media/blink/mock_webframeclient.h"
+#include "media/blink/mock_weburlloader.h"
+#include "media/blink/resource_multibuffer_data_provider.h"
+#include "media/blink/url_index.h"
+#include "net/base/net_errors.h"
+#include "net/http/http_request_headers.h"
+#include "net/http/http_util.h"
+#include "third_party/WebKit/public/platform/WebString.h"
+#include "third_party/WebKit/public/platform/WebURLError.h"
+#include "third_party/WebKit/public/platform/WebURLRequest.h"
+#include "third_party/WebKit/public/platform/WebURLResponse.h"
+#include "third_party/WebKit/public/web/WebLocalFrame.h"
+#include "third_party/WebKit/public/web/WebView.h"
+
+using ::testing::_;
+using ::testing::InSequence;
+using ::testing::Return;
+using ::testing::Truly;
+using ::testing::NiceMock;
+
+using blink::WebLocalFrame;
+using blink::WebString;
+using blink::WebURLError;
+using blink::WebURLResponse;
+using blink::WebView;
+
+namespace media {
+
+const char kHttpUrl[] = "http://test";
+const char kHttpRedirect[] = "http://test/ing";
+
+const int kDataSize = 1024;
+const int kHttpOK = 200;
+const int kHttpPartialContent = 206;
+
+enum NetworkState { NONE, LOADED, LOADING };
+
+// Predicate that tests that request disallows compressed data.
+static bool CorrectAcceptEncoding(const blink::WebURLRequest& request) {
+  std::string value =
+      request.httpHeaderField(
+                 WebString::fromUTF8(net::HttpRequestHeaders::kAcceptEncoding))
+          .utf8();
+  return (value.find("identity;q=1") != std::string::npos) &&
+         (value.find("*;q=0") != std::string::npos);
+}
+
+class ResourceMultiBufferDataProviderTest : public testing::Test {
+ public:
+  ResourceMultiBufferDataProviderTest()
+      : view_(WebView::create(nullptr)),
+        frame_(WebLocalFrame::create(blink::WebTreeScopeType::Document,
+                                     &client_)) {
+    view_->setMainFrame(frame_);
+    url_index_.reset(new UrlIndex(frame_, 0));
+
+    for (int i = 0; i < kDataSize; ++i) {
+      data_[i] = i;
+    }
+  }
+
+  virtual ~ResourceMultiBufferDataProviderTest() {
+    view_->close();
+    frame_->close();
+  }
+
+  void Initialize(const char* url, int first_position) {
+    gurl_ = GURL(url);
+    url_data_ = url_index_->GetByUrl(gurl_, UrlData::CORS_UNSPECIFIED);
+    DCHECK(url_data_);
+    DCHECK(url_data_->frame());
+    url_data_->OnRedirect(
+        base::Bind(&ResourceMultiBufferDataProviderTest::RedirectCallback,
+                   base::Unretained(this)));
+
+    first_position_ = first_position;
+
+    scoped_ptr<ResourceMultiBufferDataProvider> loader(
+        new ResourceMultiBufferDataProvider(url_data_.get(), first_position_));
+    loader_ = loader.get();
+    url_data_->multibuffer()->AddProvider(loader.Pass());
+
+    // |test_loader_| will be used when Start() is called.
+    url_loader_ = new NiceMock<MockWebURLLoader>();
+    loader_->test_loader_ = scoped_ptr<blink::WebURLLoader>(url_loader_);
+  }
+
+  void Start() {
+    InSequence s;
+    EXPECT_CALL(*url_loader_,
+                loadAsynchronously(Truly(CorrectAcceptEncoding), loader_));
+
+    loader_->Start();
+  }
+
+  void FullResponse(int64 instance_size, bool ok = true) {
+    WebURLResponse response(gurl_);
+    response.setHTTPHeaderField(
+        WebString::fromUTF8("Content-Length"),
+        WebString::fromUTF8(base::StringPrintf("%" PRId64, instance_size)));
+    response.setExpectedContentLength(instance_size);
+    response.setHTTPStatusCode(kHttpOK);
+    loader_->didReceiveResponse(url_loader_, response);
+
+    if (ok) {
+      EXPECT_EQ(instance_size, url_data_->length());
+    }
+
+    EXPECT_FALSE(url_data_->range_supported());
+  }
+
+  void PartialResponse(int64 first_position,
+                       int64 last_position,
+                       int64 instance_size) {
+    PartialResponse(first_position, last_position, instance_size, false, true);
+  }
+
+  void PartialResponse(int64 first_position,
+                       int64 last_position,
+                       int64 instance_size,
+                       bool chunked,
+                       bool accept_ranges) {
+    WebURLResponse response(gurl_);
+    response.setHTTPHeaderField(
+        WebString::fromUTF8("Content-Range"),
+        WebString::fromUTF8(
+            base::StringPrintf("bytes "
+                               "%" PRId64 "-%" PRId64 "/%" PRId64,
+                               first_position, last_position, instance_size)));
+
+    // HTTP 1.1 doesn't permit Content-Length with Transfer-Encoding: chunked.
+    int64 content_length = -1;
+    if (chunked) {
+      response.setHTTPHeaderField(WebString::fromUTF8("Transfer-Encoding"),
+                                  WebString::fromUTF8("chunked"));
+    } else {
+      content_length = last_position - first_position + 1;
+    }
+    response.setExpectedContentLength(content_length);
+
+    // A server isn't required to return Accept-Ranges even though it might.
+    if (accept_ranges) {
+      response.setHTTPHeaderField(WebString::fromUTF8("Accept-Ranges"),
+                                  WebString::fromUTF8("bytes"));
+    }
+
+    response.setHTTPStatusCode(kHttpPartialContent);
+    loader_->didReceiveResponse(url_loader_, response);
+
+    EXPECT_EQ(instance_size, url_data_->length());
+
+    // A valid partial response should always result in this being true.
+    EXPECT_TRUE(url_data_->range_supported());
+  }
+
+  void Redirect(const char* url) {
+    GURL redirectUrl(url);
+    blink::WebURLRequest newRequest(redirectUrl);
+    blink::WebURLResponse redirectResponse(gurl_);
+
+    EXPECT_CALL(*this, RedirectCallback(_))
+        .WillOnce(
+            Invoke(this, &ResourceMultiBufferDataProviderTest::SetUrlData));
+
+    loader_->willFollowRedirect(url_loader_, newRequest, redirectResponse);
+
+    base::MessageLoop::current()->RunUntilIdle();
+  }
+
+  void StopWhenLoad() {
+    InSequence s;
+    EXPECT_CALL(*url_loader_, cancel());
+    loader_ = nullptr;
+    url_data_ = nullptr;
+  }
+
+  // Helper method to write to |loader_| from |data_|.
+  void WriteLoader(int position, int size) {
+    loader_->didReceiveData(
+        url_loader_, reinterpret_cast<char*>(data_ + position), size, size);
+  }
+
+  void WriteData(int size) {
+    scoped_ptr<char[]> data(new char[size]);
+    loader_->didReceiveData(url_loader_, data.get(), size, size);
+  }
+
+  // Verifies that data in buffer[0...size] is equal to data_[pos...pos+size].
+  void VerifyBuffer(uint8* buffer, int pos, int size) {
+    EXPECT_EQ(0, memcmp(buffer, data_ + pos, size));
+  }
+
+  bool HasActiveLoader() { return loader_->active_loader_; }
+  MOCK_METHOD1(RedirectCallback, void(const scoped_refptr<UrlData>&));
+
+  void SetUrlData(const scoped_refptr<UrlData>& new_url_data) {
+    url_data_ = new_url_data;
+  }
+
+ protected:
+  GURL gurl_;
+  int64 first_position_;
+
+  scoped_ptr<UrlIndex> url_index_;
+  scoped_refptr<UrlData> url_data_;
+  scoped_refptr<UrlData> redirected_to_;
+  // The loader is owned by the UrlData above.
+  ResourceMultiBufferDataProvider* loader_;
+  NiceMock<MockWebURLLoader>* url_loader_;
+
+  MockWebFrameClient client_;
+  WebView* view_;
+  WebLocalFrame* frame_;
+
+  base::MessageLoop message_loop_;
+
+  uint8 data_[kDataSize];
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ResourceMultiBufferDataProviderTest);
+};
+
+TEST_F(ResourceMultiBufferDataProviderTest, StartStop) {
+  Initialize(kHttpUrl, 0);
+  Start();
+  StopWhenLoad();
+}
+
+// Tests that a bad HTTP response is recived, e.g. file not found.
+TEST_F(ResourceMultiBufferDataProviderTest, BadHttpResponse) {
+  Initialize(kHttpUrl, 0);
+  Start();
+
+  EXPECT_CALL(*this, RedirectCallback(scoped_refptr<UrlData>(nullptr)));
+
+  WebURLResponse response(gurl_);
+  response.setHTTPStatusCode(404);
+  response.setHTTPStatusText("Not Found\n");
+  loader_->didReceiveResponse(url_loader_, response);
+  StopWhenLoad();
+}
+
+// Tests that partial content is requested but not fulfilled.
+TEST_F(ResourceMultiBufferDataProviderTest, NotPartialResponse) {
+  Initialize(kHttpUrl, 100);
+  Start();
+  FullResponse(1024, false);
+  StopWhenLoad();
+}
+
+// Tests that a 200 response is received.
+TEST_F(ResourceMultiBufferDataProviderTest, FullResponse) {
+  Initialize(kHttpUrl, 0);
+  Start();
+  FullResponse(1024);
+  StopWhenLoad();
+}
+
+// Tests that a partial content response is received.
+TEST_F(ResourceMultiBufferDataProviderTest, PartialResponse) {
+  Initialize(kHttpUrl, 100);
+  Start();
+  PartialResponse(100, 200, 1024);
+  StopWhenLoad();
+}
+
+TEST_F(ResourceMultiBufferDataProviderTest, PartialResponse_Chunked) {
+  Initialize(kHttpUrl, 100);
+  Start();
+  PartialResponse(100, 200, 1024, true, true);
+  StopWhenLoad();
+}
+
+TEST_F(ResourceMultiBufferDataProviderTest, PartialResponse_NoAcceptRanges) {
+  Initialize(kHttpUrl, 100);
+  Start();
+  PartialResponse(100, 200, 1024, false, false);
+  StopWhenLoad();
+}
+
+TEST_F(ResourceMultiBufferDataProviderTest,
+       PartialResponse_ChunkedNoAcceptRanges) {
+  Initialize(kHttpUrl, 100);
+  Start();
+  PartialResponse(100, 200, 1024, true, false);
+  StopWhenLoad();
+}
+
+// Tests that an invalid partial response is received.
+TEST_F(ResourceMultiBufferDataProviderTest, InvalidPartialResponse) {
+  Initialize(kHttpUrl, 0);
+  Start();
+
+  EXPECT_CALL(*this, RedirectCallback(scoped_refptr<UrlData>(nullptr)));
+
+  WebURLResponse response(gurl_);
+  response.setHTTPHeaderField(
+      WebString::fromUTF8("Content-Range"),
+      WebString::fromUTF8(base::StringPrintf("bytes "
+                                             "%d-%d/%d",
+                                             1, 10, 1024)));
+  response.setExpectedContentLength(10);
+  response.setHTTPStatusCode(kHttpPartialContent);
+  loader_->didReceiveResponse(url_loader_, response);
+  StopWhenLoad();
+}
+
+TEST_F(ResourceMultiBufferDataProviderTest, TestRedirects) {
+  // Test redirect.
+  Initialize(kHttpUrl, 0);
+  Start();
+  Redirect(kHttpRedirect);
+  FullResponse(1024);
+  StopWhenLoad();
+}
+
+}  // namespace media