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 * modification, are permitted provided that the following conditions are
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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#include "core/exported/LocalFrameClientImpl.h"

#include "core/frame/FrameTestHelpers.h"
#include "core/frame/WebLocalFrameImpl.h"
#include "platform/weborigin/KURL.h"
#include "platform/wtf/text/CString.h"
#include "platform/wtf/text/WTFString.h"
#include "public/web/WebFrameClient.h"
#include "public/web/WebSettings.h"
#include "public/web/WebView.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"

using ::testing::_;
using ::testing::Mock;
using ::testing::Return;

namespace blink {
namespace {

class LocalFrameMockWebFrameClient
    : public FrameTestHelpers::TestWebFrameClient {
 public:
  ~LocalFrameMockWebFrameClient() override = default;

  MOCK_METHOD0(UserAgentOverride, WebString());
};

class LocalFrameClientImplTest : public ::testing::Test {
 protected:
  void SetUp() override {
    ON_CALL(web_frame_client_, UserAgentOverride())
        .WillByDefault(Return(WebString()));

    helper_.Initialize(&web_frame_client_);
    // FIXME: http://crbug.com/363843. This needs to find a better way to
    // not create graphics layers.
    helper_.GetWebView()->GetSettings()->SetAcceleratedCompositingEnabled(
        false);
  }

  void TearDown() override {
    // Tearing down the WebView by resetting the helper will call
    // UserAgentOverride() in order to store the information for detached
    // requests.
    EXPECT_CALL(WebFrameClient(), UserAgentOverride());
    helper_.Reset();
  }

  WebString UserAgent() {
    // The test always returns the same user agent .
    WTF::CString user_agent = GetLocalFrameClient().UserAgent().Utf8();
    return WebString::FromUTF8(user_agent.data(), user_agent.length());
  }

  WebLocalFrameImpl* MainFrame() { return helper_.LocalMainFrame(); }
  Document& GetDocument() { return *MainFrame()->GetFrame()->GetDocument(); }
  LocalFrameMockWebFrameClient& WebFrameClient() { return web_frame_client_; }
  LocalFrameClient& GetLocalFrameClient() {
    return *ToLocalFrameClientImpl(MainFrame()->GetFrame()->Client());
  }

 private:
  LocalFrameMockWebFrameClient web_frame_client_;
  FrameTestHelpers::WebViewHelper helper_;
};

TEST_F(LocalFrameClientImplTest, UserAgentOverride) {
  const WebString default_user_agent = UserAgent();
  const WebString override_user_agent = WebString::FromUTF8("dummy override");

  // Override the user agent and make sure we get it back.
  EXPECT_CALL(WebFrameClient(), UserAgentOverride())
      .WillOnce(Return(override_user_agent));
  EXPECT_TRUE(override_user_agent.Equals(UserAgent()));
  Mock::VerifyAndClearExpectations(&WebFrameClient());

  // Remove the override and make sure we get the original back.
  EXPECT_CALL(WebFrameClient(), UserAgentOverride())
      .WillOnce(Return(WebString()));
  EXPECT_TRUE(default_user_agent.Equals(UserAgent()));
}

}  // namespace
}  // namespace blink