| /** |
| * Copyright 2010 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // Author: sligocki@google.com (Shawn Ligocki) |
| |
| #include "net/instaweb/rewriter/public/common_filter.h" |
| |
| #include "net/instaweb/htmlparse/public/html_parse.h" |
| #include "net/instaweb/util/public/google_message_handler.h" |
| #include "net/instaweb/util/public/gtest.h" |
| |
| namespace net_instaweb { |
| |
| namespace { |
| |
| class CountingFilter : public CommonFilter { |
| public: |
| CountingFilter(HtmlParse* html_parse) : CommonFilter(html_parse), |
| start_doc_calls_(0), |
| start_element_calls_(0), |
| end_element_calls_(0) {} |
| |
| virtual void StartDocumentImpl() { ++start_doc_calls_; } |
| virtual void StartElementImpl(HtmlElement* element) { |
| ++start_element_calls_; |
| } |
| virtual void EndElementImpl(HtmlElement* element) { ++end_element_calls_; } |
| |
| virtual const char* Name() const { return "CommonFilterTest.CountingFilter"; } |
| |
| int start_doc_calls_; |
| int start_element_calls_; |
| int end_element_calls_; |
| }; |
| |
| class CommonFilterTest : public ::testing::Test { |
| protected: |
| CommonFilterTest() : html_parse_(&handler_), |
| filter_(&html_parse_) { |
| html_parse_.AddFilter(&filter_); |
| } |
| |
| void ExpectUrl(const std::string& expected_url, const GURL& actual_gurl) { |
| LOG(INFO) << actual_gurl; |
| EXPECT_EQ(expected_url, GoogleUrl::Spec(actual_gurl)); |
| } |
| |
| GoogleMessageHandler handler_; |
| HtmlParse html_parse_; |
| CountingFilter filter_; |
| }; |
| |
| TEST_F(CommonFilterTest, DoesCallImpls) { |
| EXPECT_EQ(0, filter_.start_doc_calls_); |
| filter_.StartDocument(); |
| EXPECT_EQ(1, filter_.start_doc_calls_); |
| |
| HtmlElement* element = |
| html_parse_.NewElement(NULL, html_parse_.Intern("foo")); |
| EXPECT_EQ(0, filter_.start_element_calls_); |
| filter_.StartElement(element); |
| EXPECT_EQ(1, filter_.start_element_calls_); |
| |
| EXPECT_EQ(0, filter_.end_element_calls_); |
| filter_.EndElement(element); |
| EXPECT_EQ(1, filter_.end_element_calls_); |
| } |
| |
| TEST_F(CommonFilterTest, StoresCorrectBaseUrl) { |
| std::string doc_url = "http://www.example.com/"; |
| html_parse_.StartParse(doc_url); |
| html_parse_.Flush(); |
| // Base URL starts out as document URL. |
| ExpectUrl(doc_url, html_parse_.gurl()); |
| ExpectUrl(doc_url, filter_.base_gurl()); |
| |
| html_parse_.ParseText("<html><head><link rel='stylesheet' href='foo.css'>"); |
| html_parse_.Flush(); |
| ExpectUrl(doc_url, filter_.base_gurl()); |
| |
| std::string base_url = "http://www.baseurl.com/foo/"; |
| html_parse_.ParseText("<base href='"); |
| html_parse_.ParseText(base_url); |
| html_parse_.ParseText("' />"); |
| html_parse_.Flush(); |
| // Update to base URL. |
| ExpectUrl(base_url, filter_.base_gurl()); |
| // Make sure we didn't change the document URL. |
| ExpectUrl(doc_url, html_parse_.gurl()); |
| |
| html_parse_.ParseText("<link rel='stylesheet' href='foo.css'>"); |
| html_parse_.Flush(); |
| ExpectUrl(base_url, filter_.base_gurl()); |
| |
| std::string new_base_url = "http://www.somewhere-else.com/"; |
| html_parse_.ParseText("<base href='"); |
| html_parse_.ParseText(new_base_url); |
| html_parse_.ParseText("' />"); |
| html_parse_.Flush(); |
| // Uses new base URL. |
| ExpectUrl(new_base_url, filter_.base_gurl()); |
| |
| html_parse_.ParseText("</head></html>"); |
| html_parse_.FinishParse(); |
| ExpectUrl(new_base_url, filter_.base_gurl()); |
| ExpectUrl(doc_url, html_parse_.gurl()); |
| } |
| |
| TEST_F(CommonFilterTest, DetectsNoScriptCorrectly) { |
| std::string doc_url = "http://www.example.com/"; |
| html_parse_.StartParse(doc_url); |
| html_parse_.Flush(); |
| EXPECT_TRUE(filter_.noscript_element() == NULL); |
| |
| html_parse_.ParseText("<html><head><title>Example Site"); |
| html_parse_.Flush(); |
| EXPECT_TRUE(filter_.noscript_element() == NULL); |
| |
| html_parse_.ParseText("</title><noscript>"); |
| html_parse_.Flush(); |
| EXPECT_TRUE(filter_.noscript_element() != NULL); |
| |
| // Nested <noscript> elements |
| html_parse_.ParseText("Blah blah blah <noscript><noscript> do-de-do-do "); |
| html_parse_.Flush(); |
| EXPECT_TRUE(filter_.noscript_element() != NULL); |
| |
| html_parse_.ParseText("<link href='style.css'>"); |
| html_parse_.Flush(); |
| EXPECT_TRUE(filter_.noscript_element() != NULL); |
| |
| // Close inner <noscript>s |
| html_parse_.ParseText("</noscript></noscript>"); |
| html_parse_.Flush(); |
| EXPECT_TRUE(filter_.noscript_element() != NULL); |
| |
| // Close outter <noscript> |
| html_parse_.ParseText("</noscript>"); |
| html_parse_.Flush(); |
| EXPECT_TRUE(filter_.noscript_element() == NULL); |
| |
| html_parse_.ParseText("</head></html>"); |
| html_parse_.FinishParse(); |
| EXPECT_TRUE(filter_.noscript_element() == NULL); |
| |
| } |
| |
| } // namespace |
| |
| } // namespace net_instaweb |
