Previews infobar tests

chrome/browser/previews/previews_infobar_tab_helper_unittest.cc

+// Copyright 2016 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 "chrome/browser/previews/previews_infobar_tab_helper.h"
+
+#include "base/memory/ref_counted.h"
+#include "chrome/browser/infobars/infobar_service.h"
+#include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings.h"
+#include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings_factory.h"
+#include "chrome/browser/previews/previews_infobar_tab_helper.h"
+#include "chrome/test/base/chrome_render_view_host_test_harness.h"
+#include "components/data_reduction_proxy/core/browser/data_reduction_proxy_test_utils.h"
+#include "components/data_reduction_proxy/core/common/data_reduction_proxy_headers.h"
+#include "components/data_reduction_proxy/core/common/data_reduction_proxy_pref_names.h"
+#include "components/prefs/pref_registry_simple.h"
+#include "components/proxy_config/proxy_config_pref_names.h"
+#include "content/public/browser/navigation_handle.h"
+#include "content/public/test/web_contents_tester.h"
+#include "net/http/http_response_headers.h"
+
+namespace {
+

[bengr, 2016/09/09 19:40:52]

nit: can remove blank lines above and below.

[megjablon, 2016/09/09 20:38:41]

Done.

+const char kTestUrl[] = "http://www.test.com/";
+
+}
+
+class PreviewsInfoBarTabHelperUnitTest
+    : public ChromeRenderViewHostTestHarness {
+ protected:
+  void SetUp() override {
+    ChromeRenderViewHostTestHarness::SetUp();
+    InfoBarService::CreateForWebContents(web_contents());
+    PreviewsInfoBarTabHelper::CreateForWebContents(web_contents());
+    test_handle_ = content::NavigationHandle::CreateNavigationHandleForTesting(
+        GURL(kTestUrl), main_rfh());
+
+    drp_test_context_ =
+        data_reduction_proxy::DataReductionProxyTestContext::Builder()
+            .WithMockConfig()
+            .SkipSettingsInitialization()
+            .Build();
+
+    auto* data_reduction_proxy_settings =
+        DataReductionProxyChromeSettingsFactory::GetForBrowserContext(
+            web_contents()->GetBrowserContext());
+
+    PrefRegistrySimple* registry =
+        drp_test_context_->pref_service()->registry();
+    registry->RegisterDictionaryPref(proxy_config::prefs::kProxy);
+    data_reduction_proxy_settings
+        ->set_data_reduction_proxy_enabled_pref_name_for_test(
+            drp_test_context_->GetDataReductionProxyEnabledPrefName());
+    data_reduction_proxy_settings->InitDataReductionProxySettings(
+        drp_test_context_->io_data(), drp_test_context_->pref_service(),
+        drp_test_context_->request_context_getter(),
+        base::WrapUnique(new data_reduction_proxy::DataStore()),
+        base::ThreadTaskRunnerHandle::Get(),
+        base::ThreadTaskRunnerHandle::Get());
+  }
+
+  void TearDown() override {
+    drp_test_context_->DestroySettings();
+    ChromeRenderViewHostTestHarness::TearDown();
+  }
+
+  void SimulateWillProcessResponse() {
+    scoped_refptr<net::HttpResponseHeaders> headers =
+        new net::HttpResponseHeaders("");
+    headers->AddHeader(
+        std::string(data_reduction_proxy::chrome_proxy_header()) + ": " +

[bengr, 2016/09/09 19:40:52]

I'd use StringPrintF in base to construct the string.

[megjablon, 2016/09/09 20:38:41]

Done.

+        data_reduction_proxy::chrome_proxy_lo_fi_preview_directive());
+    test_handle_->CallWillProcessResponseForTesting(main_rfh(), headers);
+    test_handle_->CallDidCommitNavigationForTesting(GURL(kTestUrl));
+  }
+
+  void CallDidFinishNavigation() {
+    test_handle_.reset();
+  }
+
+ private:
+  std::unique_ptr<content::NavigationHandle> test_handle_;
+  std::unique_ptr<data_reduction_proxy::DataReductionProxyTestContext>
+      drp_test_context_;
+};
+
+TEST_F(PreviewsInfoBarTabHelperUnitTest, CreateLitePageInfoBar) {
+  PreviewsInfoBarTabHelper* infobar_tab_helper =
+      PreviewsInfoBarTabHelper::FromWebContents(web_contents());
+  EXPECT_FALSE(infobar_tab_helper->displayed_preview_infobar());
+
+  SimulateWillProcessResponse();
+  CallDidFinishNavigation();
+
+  InfoBarService* infobar_service =
+      InfoBarService::FromWebContents(web_contents());
+  EXPECT_EQ(1U, infobar_service->infobar_count());
+  EXPECT_TRUE(infobar_tab_helper->displayed_preview_infobar());
+
+  // Navigate to reset the displayed state.
+  content::WebContentsTester::For(web_contents())->
+      NavigateAndCommit(GURL(kTestUrl));
+  EXPECT_FALSE(infobar_tab_helper->displayed_preview_infobar());
+}