components/link_header_util/link_header_util_unittest.cc - chromium/src.git - Git at Google

 // 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 "components/link_header_util/link_header_util.h"

 #include "base/logging.h"
 #include "base/run_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"

 namespace link_header_util {

 namespace {

 void SplitLinkHeaderForTesting(const std::string& header,
                                std::vector<std::string>* values) {
   std::vector<StringIteratorPair> values_iterators = SplitLinkHeader(header);
   values->clear();
   for (const auto& pair : values_iterators)
     values->push_back(std::string(pair.first, pair.second));
 }

 bool ParseLinkHeaderValueForTesting(
     std::string value,
     std::string* url,
     std::unordered_map<std::string, base::Optional<std::string>>* params) {
   return ParseLinkHeaderValue(value.begin(), value.end(), url, params);
 }

 TEST(LinkHeaderTest, SplitEmpty) {
   std::vector<std::string> values;
   SplitLinkHeaderForTesting("", &values);
   ASSERT_EQ(0u, values.size());
 }

 TEST(LinkHeaderTest, SplitSimple) {
   std::vector<std::string> values;
   SplitLinkHeaderForTesting("hello", &values);
   ASSERT_EQ(1u, values.size());
   EXPECT_EQ("hello", values[0]);

   SplitLinkHeaderForTesting("foo, bar", &values);
   ASSERT_EQ(2u, values.size());
   EXPECT_EQ("foo", values[0]);
   EXPECT_EQ("bar", values[1]);

   SplitLinkHeaderForTesting(" 1\t,\t2,3", &values);
   ASSERT_EQ(3u, values.size());
   EXPECT_EQ("1", values[0]);
   EXPECT_EQ("2", values[1]);
   EXPECT_EQ("3", values[2]);
 }

 TEST(LinkHeaderTest, SplitSkipsEmpty) {
   std::vector<std::string> values;
   SplitLinkHeaderForTesting(", foo, , \t, bar", &values);
   ASSERT_EQ(2u, values.size());
   EXPECT_EQ("foo", values[0]);
   EXPECT_EQ("bar", values[1]);
 }

 TEST(LinkHeaderTest, SplitQuotes) {
   std::vector<std::string> values;
   SplitLinkHeaderForTesting("\"foo,bar\", 'bar,foo', <hel,lo>", &values);
   ASSERT_EQ(4u, values.size());
   EXPECT_EQ("\"foo,bar\"", values[0]);
   EXPECT_EQ("'bar", values[1]);
   EXPECT_EQ("foo'", values[2]);
   EXPECT_EQ("<hel,lo>", values[3]);
 }

 TEST(LinkHeaderTest, SplitEscapedQuotes) {
   std::vector<std::string> values;
   SplitLinkHeaderForTesting("\"f\\\"oo,bar\", 'b\\'ar,foo', <hel\\>,lo>",
                             &values);
   ASSERT_EQ(5u, values.size());
   EXPECT_EQ("\"f\\\"oo,bar\"", values[0]);
   EXPECT_EQ("'b\\'ar", values[1]);
   EXPECT_EQ("foo'", values[2]);
   EXPECT_EQ("<hel\\>", values[3]);
   EXPECT_EQ("lo>", values[4]);
 }

 struct SimpleParseTestData {
   const char* link;
   bool valid;
   const char* url;
   const char* rel;
   const char* as;
 };

 void PrintTo(const SimpleParseTestData& test, std::ostream* os) {
   *os << ::testing::PrintToString(test.link);
 }

 class SimpleParseTest : public ::testing::TestWithParam<SimpleParseTestData> {};

 TEST_P(SimpleParseTest, Simple) {
   const SimpleParseTestData test = GetParam();

   std::string url;
   std::unordered_map<std::string, base::Optional<std::string>> params;
   EXPECT_EQ(test.valid,
             ParseLinkHeaderValueForTesting(test.link, &url, &params));
   if (test.valid) {
     EXPECT_EQ(test.url, url);
     EXPECT_EQ(test.rel, params["rel"].value_or(""));
     EXPECT_EQ(test.as, params["as"].value_or(""));
   }
 }

 // Test data mostly copied from blink::LinkHeaderTest. Expectations for a small
 // subset of test cases are different though. Mostly because blink::LinkHeader
 // factors in knowledge about semantics of Link headers (parameters that are
 // required to have a value if they occur, some parameters are auto-lower-cased,
 // headers with an "anchor" parameter are rejected by base::LinkHeader).
 // The code this tests purely parses without actually interpreting the data, as
 // it is expected that another layer on top will do more specific validations.
 const SimpleParseTestData simple_parse_tests[] = {
     {"</images/cat.jpg>; rel=prefetch", true, "/images/cat.jpg", "prefetch",
      ""},
     {"</images/cat.jpg>;rel=prefetch", true, "/images/cat.jpg", "prefetch", ""},
     {"</images/cat.jpg>   ;rel=prefetch", true, "/images/cat.jpg", "prefetch",
      ""},
     {"</images/cat.jpg>   ;   rel=prefetch", true, "/images/cat.jpg",
      "prefetch", ""},
     {"< /images/cat.jpg>   ;   rel=prefetch", true, "/images/cat.jpg",
      "prefetch", ""},
     {"</images/cat.jpg >   ;   rel=prefetch", true, "/images/cat.jpg",
      "prefetch", ""},
     {"</images/cat.jpg wutwut>   ;   rel=prefetch", true,
      "/images/cat.jpg wutwut", "prefetch", ""},
     {"</images/cat.jpg wutwut  \t >   ;   rel=prefetch", true,
      "/images/cat.jpg wutwut", "prefetch", ""},
     {"</images/cat.jpg>; rel=prefetch   ", true, "/images/cat.jpg", "prefetch",
      ""},
     {"</images/cat.jpg>; Rel=prefetch   ", true, "/images/cat.jpg", "prefetch",
      ""},
     {"</images/cat.jpg>; Rel=PReFetCh   ", true, "/images/cat.jpg", "PReFetCh",
      ""},
     {"</images/cat.jpg>; rel=prefetch; rel=somethingelse", true,
      "/images/cat.jpg", "prefetch", ""},
     {"</images/cat.jpg>\t\t ; \trel=prefetch \t  ", true, "/images/cat.jpg",
      "prefetch", ""},
     {"</images/cat.jpg>; rel= prefetch", true, "/images/cat.jpg", "prefetch",
      ""},
     {"<../images/cat.jpg?dog>; rel= prefetch", true, "../images/cat.jpg?dog",
      "prefetch", ""},
     {"</images/cat.jpg>; rel =prefetch", true, "/images/cat.jpg", "prefetch",
      ""},
     {"</images/cat.jpg>; rel pel=prefetch", false},
     {"< /images/cat.jpg>", true, "/images/cat.jpg", "", ""},
     {"</images/cat.jpg>; wut=sup; rel =prefetch", true, "/images/cat.jpg",
      "prefetch", ""},
     {"</images/cat.jpg>; wut=sup ; rel =prefetch", true, "/images/cat.jpg",
      "prefetch", ""},
     {"</images/cat.jpg>; wut=sup ; rel =prefetch  \t  ;", true,
      "/images/cat.jpg", "prefetch", ""},
     {"</images/cat.jpg> wut=sup ; rel =prefetch  \t  ;", false},
     {"<   /images/cat.jpg", false},
     {"<   http://wut.com/  sdfsdf ?sd>; rel=dns-prefetch", true,
      "http://wut.com/  sdfsdf ?sd", "dns-prefetch", ""},
     {"<   http://wut.com/%20%20%3dsdfsdf?sd>; rel=dns-prefetch", true,
      "http://wut.com/%20%20%3dsdfsdf?sd", "dns-prefetch", ""},
     {"<   http://wut.com/dfsdf?sdf=ghj&wer=rty>; rel=prefetch", true,
      "http://wut.com/dfsdf?sdf=ghj&wer=rty", "prefetch", ""},
     {"<   http://wut.com/dfsdf?sdf=ghj&wer=rty>;;;;; rel=prefetch", true,
      "http://wut.com/dfsdf?sdf=ghj&wer=rty", "prefetch", ""},
     {"<   http://wut.com/%20%20%3dsdfsdf?sd>; rel=preload;as=image", true,
      "http://wut.com/%20%20%3dsdfsdf?sd", "preload", "image"},
     {"<   http://wut.com/%20%20%3dsdfsdf?sd>; rel=preload;as=whatever", true,
      "http://wut.com/%20%20%3dsdfsdf?sd", "preload", "whatever"},
     {"</images/cat.jpg>; rel=prefetch;", true, "/images/cat.jpg", "prefetch",
      ""},
     {"</images/cat.jpg>; rel=prefetch    ;", true, "/images/cat.jpg",
      "prefetch", ""},
     {"</images/ca,t.jpg>; rel=prefetch    ;", true, "/images/ca,t.jpg",
      "prefetch", ""},
     {"<simple.css>; rel=stylesheet; title=\"title with a DQUOTE and "
      "backslash\"",
      true, "simple.css", "stylesheet", ""},
     {"<simple.css>; rel=stylesheet; title=\"title with a DQUOTE \\\" and "
      "backslash: \\\"",
      false},
     {"<simple.css>; title=\"title with a DQUOTE \\\" and backslash: \"; "
      "rel=stylesheet; ",
      true, "simple.css", "stylesheet", ""},
     {"<simple.css>; title=\'title with a DQUOTE \\\' and backslash: \'; "
      "rel=stylesheet; ",
      true, "simple.css", "stylesheet", ""},
     {"<simple.css>; title=\"title with a DQUOTE \\\" and ;backslash,: \"; "
      "rel=stylesheet; ",
      true, "simple.css", "stylesheet", ""},
     {"<simple.css>; title=\"title with a DQUOTE \' and ;backslash,: \"; "
      "rel=stylesheet; ",
      true, "simple.css", "stylesheet", ""},
     {"<simple.css>; title=\"\"; rel=stylesheet; ", true, "simple.css",
      "stylesheet", ""},
     {"<simple.css>; title=\"\"; rel=\"stylesheet\"; ", true, "simple.css",
      "stylesheet", ""},
     {"<simple.css>; rel=stylesheet; title=\"", false},
     {"<simple.css>; rel=stylesheet; title=\"\"", true, "simple.css",
      "stylesheet", ""},
     {"<simple.css>; rel=\"stylesheet\"; title=\"", false},
     {"<simple.css>; rel=\";style,sheet\"; title=\"", false},
     {"<simple.css>; rel=\"bla'sdf\"; title=\"", false},
     {"<simple.css>; rel=\"\"; title=\"\"", true, "simple.css", "", ""},
     {"<simple.css>; rel=''; title=\"\"", true, "simple.css", "''", ""},
     {"<simple.css>; rel=''; bla", true, "simple.css", "''", ""},
     {"<simple.css>; rel='prefetch", true, "simple.css", "'prefetch", ""},
     {"<simple.css>; rel=\"prefetch", false},
     {"<simple.css>; rel=\"", false},
     {"simple.css; rel=prefetch", false},
     {"<simple.css>; rel=prefetch; rel=foobar", true, "simple.css", "prefetch",
      ""},
 };

 INSTANTIATE_TEST_CASE_P(LinkHeaderTest,
                         SimpleParseTest,
                         testing::ValuesIn(simple_parse_tests));

 }  // namespace

 }  // namespace link_header_util
	// 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 "components/link_header_util/link_header_util.h"

	#include "base/logging.h"
	#include "base/run_loop.h"
	#include "testing/gtest/include/gtest/gtest.h"

	namespace link_header_util {

	namespace {

	void SplitLinkHeaderForTesting(const std::string& header,
	std::vector<std::string>* values) {
	std::vector<StringIteratorPair> values_iterators = SplitLinkHeader(header);
	values->clear();
	for (const auto& pair : values_iterators)
	values->push_back(std::string(pair.first, pair.second));
	}

	bool ParseLinkHeaderValueForTesting(
	std::string value,
	std::string* url,
	std::unordered_map<std::string, base::Optional<std::string>>* params) {
	return ParseLinkHeaderValue(value.begin(), value.end(), url, params);
	}

	TEST(LinkHeaderTest, SplitEmpty) {
	std::vector<std::string> values;
	SplitLinkHeaderForTesting("", &values);
	ASSERT_EQ(0u, values.size());
	}

	TEST(LinkHeaderTest, SplitSimple) {
	std::vector<std::string> values;
	SplitLinkHeaderForTesting("hello", &values);
	ASSERT_EQ(1u, values.size());
	EXPECT_EQ("hello", values[0]);

	SplitLinkHeaderForTesting("foo, bar", &values);
	ASSERT_EQ(2u, values.size());
	EXPECT_EQ("foo", values[0]);
	EXPECT_EQ("bar", values[1]);

	SplitLinkHeaderForTesting(" 1\t,\t2,3", &values);
	ASSERT_EQ(3u, values.size());
	EXPECT_EQ("1", values[0]);
	EXPECT_EQ("2", values[1]);
	EXPECT_EQ("3", values[2]);
	}

	TEST(LinkHeaderTest, SplitSkipsEmpty) {
	std::vector<std::string> values;
	SplitLinkHeaderForTesting(", foo, , \t, bar", &values);
	ASSERT_EQ(2u, values.size());
	EXPECT_EQ("foo", values[0]);
	EXPECT_EQ("bar", values[1]);
	}

	TEST(LinkHeaderTest, SplitQuotes) {
	std::vector<std::string> values;
	SplitLinkHeaderForTesting("\"foo,bar\", 'bar,foo', <hel,lo>", &values);
	ASSERT_EQ(4u, values.size());
	EXPECT_EQ("\"foo,bar\"", values[0]);
	EXPECT_EQ("'bar", values[1]);
	EXPECT_EQ("foo'", values[2]);
	EXPECT_EQ("<hel,lo>", values[3]);
	}

	TEST(LinkHeaderTest, SplitEscapedQuotes) {
	std::vector<std::string> values;
	SplitLinkHeaderForTesting("\"f\\\"oo,bar\", 'b\\'ar,foo', <hel\\>,lo>",
	&values);
	ASSERT_EQ(5u, values.size());
	EXPECT_EQ("\"f\\\"oo,bar\"", values[0]);
	EXPECT_EQ("'b\\'ar", values[1]);
	EXPECT_EQ("foo'", values[2]);
	EXPECT_EQ("<hel\\>", values[3]);
	EXPECT_EQ("lo>", values[4]);
	}

	struct SimpleParseTestData {
	const char* link;
	bool valid;
	const char* url;
	const char* rel;
	const char* as;
	};

	void PrintTo(const SimpleParseTestData& test, std::ostream* os) {
	*os << ::testing::PrintToString(test.link);
	}

	class SimpleParseTest : public ::testing::TestWithParam<SimpleParseTestData> {};

	TEST_P(SimpleParseTest, Simple) {
	const SimpleParseTestData test = GetParam();

	std::string url;
	std::unordered_map<std::string, base::Optional<std::string>> params;
	EXPECT_EQ(test.valid,
	ParseLinkHeaderValueForTesting(test.link, &url, &params));
	if (test.valid) {
	EXPECT_EQ(test.url, url);
	EXPECT_EQ(test.rel, params["rel"].value_or(""));
	EXPECT_EQ(test.as, params["as"].value_or(""));
	}
	}

	// Test data mostly copied from blink::LinkHeaderTest. Expectations for a small
	// subset of test cases are different though. Mostly because blink::LinkHeader
	// factors in knowledge about semantics of Link headers (parameters that are
	// required to have a value if they occur, some parameters are auto-lower-cased,
	// headers with an "anchor" parameter are rejected by base::LinkHeader).
	// The code this tests purely parses without actually interpreting the data, as
	// it is expected that another layer on top will do more specific validations.
	const SimpleParseTestData simple_parse_tests[] = {
	{"</images/cat.jpg>; rel=prefetch", true, "/images/cat.jpg", "prefetch",
	""},
	{"</images/cat.jpg>;rel=prefetch", true, "/images/cat.jpg", "prefetch", ""},
	{"</images/cat.jpg> ;rel=prefetch", true, "/images/cat.jpg", "prefetch",
	""},
	{"</images/cat.jpg> ; rel=prefetch", true, "/images/cat.jpg",
	"prefetch", ""},
	{"< /images/cat.jpg> ; rel=prefetch", true, "/images/cat.jpg",
	"prefetch", ""},
	{"</images/cat.jpg > ; rel=prefetch", true, "/images/cat.jpg",
	"prefetch", ""},
	{"</images/cat.jpg wutwut> ; rel=prefetch", true,
	"/images/cat.jpg wutwut", "prefetch", ""},
	{"</images/cat.jpg wutwut \t > ; rel=prefetch", true,
	"/images/cat.jpg wutwut", "prefetch", ""},
	{"</images/cat.jpg>; rel=prefetch ", true, "/images/cat.jpg", "prefetch",
	""},
	{"</images/cat.jpg>; Rel=prefetch ", true, "/images/cat.jpg", "prefetch",
	""},
	{"</images/cat.jpg>; Rel=PReFetCh ", true, "/images/cat.jpg", "PReFetCh",
	""},
	{"</images/cat.jpg>; rel=prefetch; rel=somethingelse", true,
	"/images/cat.jpg", "prefetch", ""},
	{"</images/cat.jpg>\t\t ; \trel=prefetch \t ", true, "/images/cat.jpg",
	"prefetch", ""},
	{"</images/cat.jpg>; rel= prefetch", true, "/images/cat.jpg", "prefetch",
	""},
	{"<../images/cat.jpg?dog>; rel= prefetch", true, "../images/cat.jpg?dog",
	"prefetch", ""},
	{"</images/cat.jpg>; rel =prefetch", true, "/images/cat.jpg", "prefetch",
	""},
	{"</images/cat.jpg>; rel pel=prefetch", false},
	{"< /images/cat.jpg>", true, "/images/cat.jpg", "", ""},
	{"</images/cat.jpg>; wut=sup; rel =prefetch", true, "/images/cat.jpg",
	"prefetch", ""},
	{"</images/cat.jpg>; wut=sup ; rel =prefetch", true, "/images/cat.jpg",
	"prefetch", ""},
	{"</images/cat.jpg>; wut=sup ; rel =prefetch \t ;", true,
	"/images/cat.jpg", "prefetch", ""},
	{"</images/cat.jpg> wut=sup ; rel =prefetch \t ;", false},
	{"< /images/cat.jpg", false},
	{"< http://wut.com/ sdfsdf ?sd>; rel=dns-prefetch", true,
	"http://wut.com/ sdfsdf ?sd", "dns-prefetch", ""},
	{"< http://wut.com/%20%20%3dsdfsdf?sd>; rel=dns-prefetch", true,
	"http://wut.com/%20%20%3dsdfsdf?sd", "dns-prefetch", ""},
	{"< http://wut.com/dfsdf?sdf=ghj&wer=rty>; rel=prefetch", true,
	"http://wut.com/dfsdf?sdf=ghj&wer=rty", "prefetch", ""},
	{"< http://wut.com/dfsdf?sdf=ghj&wer=rty>;;;;; rel=prefetch", true,
	"http://wut.com/dfsdf?sdf=ghj&wer=rty", "prefetch", ""},
	{"< http://wut.com/%20%20%3dsdfsdf?sd>; rel=preload;as=image", true,
	"http://wut.com/%20%20%3dsdfsdf?sd", "preload", "image"},
	{"< http://wut.com/%20%20%3dsdfsdf?sd>; rel=preload;as=whatever", true,
	"http://wut.com/%20%20%3dsdfsdf?sd", "preload", "whatever"},
	{"</images/cat.jpg>; rel=prefetch;", true, "/images/cat.jpg", "prefetch",
	""},
	{"</images/cat.jpg>; rel=prefetch ;", true, "/images/cat.jpg",
	"prefetch", ""},
	{"</images/ca,t.jpg>; rel=prefetch ;", true, "/images/ca,t.jpg",
	"prefetch", ""},
	{"<simple.css>; rel=stylesheet; title=\"title with a DQUOTE and "
	"backslash\"",
	true, "simple.css", "stylesheet", ""},
	{"<simple.css>; rel=stylesheet; title=\"title with a DQUOTE \\\" and "
	"backslash: \\\"",
	false},
	{"<simple.css>; title=\"title with a DQUOTE \\\" and backslash: \"; "
	"rel=stylesheet; ",
	true, "simple.css", "stylesheet", ""},
	{"<simple.css>; title=\'title with a DQUOTE \\\' and backslash: \'; "
	"rel=stylesheet; ",
	true, "simple.css", "stylesheet", ""},
	{"<simple.css>; title=\"title with a DQUOTE \\\" and ;backslash,: \"; "
	"rel=stylesheet; ",
	true, "simple.css", "stylesheet", ""},
	{"<simple.css>; title=\"title with a DQUOTE \' and ;backslash,: \"; "
	"rel=stylesheet; ",
	true, "simple.css", "stylesheet", ""},
	{"<simple.css>; title=\"\"; rel=stylesheet; ", true, "simple.css",
	"stylesheet", ""},
	{"<simple.css>; title=\"\"; rel=\"stylesheet\"; ", true, "simple.css",
	"stylesheet", ""},
	{"<simple.css>; rel=stylesheet; title=\"", false},
	{"<simple.css>; rel=stylesheet; title=\"\"", true, "simple.css",
	"stylesheet", ""},
	{"<simple.css>; rel=\"stylesheet\"; title=\"", false},
	{"<simple.css>; rel=\";style,sheet\"; title=\"", false},
	{"<simple.css>; rel=\"bla'sdf\"; title=\"", false},
	{"<simple.css>; rel=\"\"; title=\"\"", true, "simple.css", "", ""},
	{"<simple.css>; rel=''; title=\"\"", true, "simple.css", "''", ""},
	{"<simple.css>; rel=''; bla", true, "simple.css", "''", ""},
	{"<simple.css>; rel='prefetch", true, "simple.css", "'prefetch", ""},
	{"<simple.css>; rel=\"prefetch", false},
	{"<simple.css>; rel=\"", false},
	{"simple.css; rel=prefetch", false},
	{"<simple.css>; rel=prefetch; rel=foobar", true, "simple.css", "prefetch",
	""},
	};

	INSTANTIATE_TEST_CASE_P(LinkHeaderTest,
	SimpleParseTest,
	testing::ValuesIn(simple_parse_tests));

	} // namespace

	} // namespace link_header_util