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- // 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/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, absl::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, absl::optional<std::string>> params;
- EXPECT_EQ(test.valid,
- ParseLinkHeaderValueForTesting(test.link, &url, ¶ms));
- 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_SUITE_P(LinkHeaderTest,
- SimpleParseTest,
- testing::ValuesIn(simple_parse_tests));
- } // namespace
- } // namespace link_header_util
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