Show template before distiller finishes

components/dom_distiller/core/dom_distiller_request_view_base_unittest.cc

+// 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 <vector>
+
+#include "components/dom_distiller/core/article_distillation_update.h"
+#include "components/dom_distiller/core/test_request_view_handle.h"
+#include "components/pref_registry/testing_pref_service_syncable.h"
+#include "grit/components_resources.h"
+#include "grit/components_strings.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/base/l10n/l10n_util.h"
+
+using testing::HasSubstr;
+using testing::Not;
+
+namespace dom_distiller {
+
+class DomDistillerRequestViewTest : public testing::Test {
+ protected:
+  void SetUp() override {
+    pref_service_.reset(new user_prefs::TestingPrefServiceSyncable());
+    DistilledPagePrefs::RegisterProfilePrefs(pref_service_->registry());
+    distilled_page_prefs_.reset(new DistilledPagePrefs(pref_service_.get()));
+  }
+
+  scoped_ptr<user_prefs::TestingPrefServiceSyncable> pref_service_;
+  scoped_ptr<DistilledPagePrefs> distilled_page_prefs_;
+};
+
+TEST_F(DomDistillerRequestViewTest, TestTitleEscaped) {
+  const std::string no_title =
+      l10n_util::GetStringUTF8(IDS_DOM_DISTILLER_VIEWER_NO_DATA_TITLE);
+  const std::string valid_title = "valid title";
+  const std::string has_quotes = "\"" + valid_title + "\"";
+  const std::string escaped_quotes = "\\\"" + valid_title + "\\\"";
+  const std::string has_special_chars = "<" + valid_title + "\\";
+  const std::string escaped_special_chars = "\\u003C" + valid_title + "\\\\";
+
+  TestRequestViewHandle handle(distilled_page_prefs_.get());
+
+  // Make sure title is properly escaped from quotes.
+  {
+    scoped_ptr<DistilledArticleProto> article_proto(
+        new DistilledArticleProto());
+    article_proto->set_title(has_quotes);
+
+    handle.OnArticleReady(article_proto.get());
+
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), HasSubstr(escaped_quotes));
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), Not(HasSubstr(has_quotes)));
+    handle.ClearJavaScriptBuffer();
+  }
+
+  // Make sure title is properly escaped from special characters.
+  {
+    scoped_ptr<DistilledArticleProto> article_proto(
+        new DistilledArticleProto());
+    article_proto->set_title(has_special_chars);
+
+    handle.OnArticleReady(article_proto.get());
+
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), HasSubstr(escaped_special_chars));
+    EXPECT_THAT(handle.GetJavaScriptBuffer(),
+                Not(HasSubstr(has_special_chars)));
+    handle.ClearJavaScriptBuffer();
+  }
+
+}
+
+TEST_F(DomDistillerRequestViewTest, TestTitleNeverEmpty) {
+  const std::string no_title =
+      l10n_util::GetStringUTF8(IDS_DOM_DISTILLER_VIEWER_NO_DATA_TITLE);
+  const std::string valid_title = "valid title";
+
+  TestRequestViewHandle handle(distilled_page_prefs_.get());
+
+  // Test that the title actually gets shown.
+  {
+    scoped_ptr<DistilledArticleProto> article_proto(
+        new DistilledArticleProto());
+    article_proto->set_title(valid_title);
+
+    handle.OnArticleReady(article_proto.get());
+
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), HasSubstr(valid_title));
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), Not(HasSubstr(no_title)));
+    handle.ClearJavaScriptBuffer();
+  }
+
+  // Test empty string title
+  {
+    scoped_ptr<DistilledArticleProto> article_proto(
+        new DistilledArticleProto());
+    article_proto->set_title("");
+
+    handle.OnArticleReady(article_proto.get());
+
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), HasSubstr(no_title));
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), Not(HasSubstr(valid_title)));
+    handle.ClearJavaScriptBuffer();
+  }
+
+  // Test no title.
+  {
+    scoped_ptr<DistilledArticleProto> article_proto(
+        new DistilledArticleProto());
+
+    handle.OnArticleReady(article_proto.get());
+
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), HasSubstr(no_title));
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), Not(HasSubstr(valid_title)));
+    handle.ClearJavaScriptBuffer();
+  }
+}
+
+TEST_F(DomDistillerRequestViewTest, TestContentNeverEmpty) {
+  const std::string no_content =
+      l10n_util::GetStringUTF8(IDS_DOM_DISTILLER_VIEWER_NO_DATA_CONTENT);
+  const std::string valid_content = "valid content";
+
+  TestRequestViewHandle handle(distilled_page_prefs_.get());
+
+  // Test single page content
+  {
+    scoped_ptr<DistilledArticleProto> article_proto(
+        new DistilledArticleProto());
+    (*(article_proto->add_pages())).set_html(valid_content);
+
+    handle.OnArticleReady(article_proto.get());
+
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), HasSubstr(valid_content));
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), Not(HasSubstr(no_content)));
+    handle.ClearJavaScriptBuffer();
+  }
+
+  // Test multiple page content
+  {
+    scoped_ptr<DistilledArticleProto> article_proto(
+        new DistilledArticleProto());
+    (*(article_proto->add_pages())).set_html(valid_content);
+    (*(article_proto->add_pages())).set_html(valid_content);
+
+    handle.OnArticleReady(article_proto.get());
+
+    EXPECT_THAT(handle.GetJavaScriptBuffer(),
+                HasSubstr(valid_content + valid_content));
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), Not(HasSubstr(no_content)));
+    handle.ClearJavaScriptBuffer();
+  }
+
+  // Test empty string content
+  {
+    scoped_ptr<DistilledArticleProto> article_proto(
+        new DistilledArticleProto());
+    (*(article_proto->add_pages())).set_html("");
+
+    handle.OnArticleReady(article_proto.get());
+
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), HasSubstr(no_content));
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), Not(HasSubstr(valid_content)));
+    handle.ClearJavaScriptBuffer();
+  }
+
+  // Test page no content
+  {
+    scoped_ptr<DistilledArticleProto> article_proto(
+        new DistilledArticleProto());
+    article_proto->add_pages();
+
+    handle.OnArticleReady(article_proto.get());
+
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), HasSubstr(no_content));
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), Not(HasSubstr(valid_content)));
+    handle.ClearJavaScriptBuffer();
+  }
+
+  // Test no page.
+  {
+    scoped_ptr<DistilledArticleProto> article_proto(
+        new DistilledArticleProto());
+
+    handle.OnArticleReady(article_proto.get());
+
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), HasSubstr(no_content));
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), Not(HasSubstr(valid_content)));
+    handle.ClearJavaScriptBuffer();
+  }
+
+  // Test empty string page update
+  {
+    std::vector<scoped_refptr<ArticleDistillationUpdate::RefCountedPageProto>>
+        pages;
+    scoped_refptr<base::RefCountedData<DistilledPageProto>> page_proto =
+        new base::RefCountedData<DistilledPageProto>();
+    page_proto->data.set_html("");
+    pages.push_back(page_proto);
+
+    scoped_ptr<ArticleDistillationUpdate> article_update(
+        new ArticleDistillationUpdate(pages, false, false));
+
+    handle.OnArticleUpdated(*article_update.get());
+
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), HasSubstr(no_content));
+    EXPECT_THAT(handle.GetJavaScriptBuffer(), Not(HasSubstr(valid_content)));
+    handle.ClearJavaScriptBuffer();
+  }
+}
+
+TEST_F(DomDistillerRequestViewTest, TestLoadingIndicator) {
+  const std::string no_content =
+      l10n_util::GetStringUTF8(IDS_DOM_DISTILLER_VIEWER_NO_DATA_CONTENT);
+  // Showing the indicator does mean passing 'false' as the parameter.
+  const std::string show_loader = "showLoadingIndicator(false);";
+
+  TestRequestViewHandle handle(distilled_page_prefs_.get());
+  handle.TakeViewerHandle(NULL);
+
+  // The loading indicator should show before any content is displayed.
+  EXPECT_THAT(handle.GetJavaScriptBuffer(), HasSubstr(show_loader));
+  handle.ClearJavaScriptBuffer();
+
+  std::vector<scoped_refptr<ArticleDistillationUpdate::RefCountedPageProto>>
+      pages;
+  scoped_refptr<base::RefCountedData<DistilledPageProto>> page_proto =
+      new base::RefCountedData<DistilledPageProto>();
+  pages.push_back(page_proto);
+
+  scoped_ptr<ArticleDistillationUpdate> article_update(
+      new ArticleDistillationUpdate(pages, true, false));
+
+  handle.OnArticleUpdated(*article_update.get());
+
+  EXPECT_THAT(handle.GetJavaScriptBuffer(), HasSubstr(show_loader));
+}
+
+}  // namespace dom_distiller