third_party/WebKit/Source/core/css/RuleSetTest.cpp - chromium/src - Git at Google

 /*
  * Copyright (c) 2014, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. Neither the name of Opera Software ASA nor the names of its
  *    contributors may be used to endorse or promote products derived
  *    from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  * OF THE POSSIBILITY OF SUCH DAMAGE.
  */

 #include "core/css/RuleSet.h"

 #include "core/css/CSSTestHelper.h"
 #include "platform/wtf/text/StringBuilder.h"
 #include "testing/gtest/include/gtest/gtest.h"

 namespace blink {

 TEST(RuleSetTest, findBestRuleSetAndAdd_CustomPseudoElements) {
   CSSTestHelper helper;

   helper.AddCSSRules("summary::-webkit-details-marker { }");
   RuleSet& rule_set = helper.GetRuleSet();
   AtomicString str("-webkit-details-marker");
   const TerminatedArray<RuleData>* rules =
       rule_set.ShadowPseudoElementRules(str);
   ASSERT_EQ(1u, rules->size());
   ASSERT_EQ(str, rules->at(0).Selector().Value());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_Id) {
   CSSTestHelper helper;

   helper.AddCSSRules("#id { }");
   RuleSet& rule_set = helper.GetRuleSet();
   AtomicString str("id");
   const TerminatedArray<RuleData>* rules = rule_set.IdRules(str);
   ASSERT_EQ(1u, rules->size());
   ASSERT_EQ(str, rules->at(0).Selector().Value());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_NthChild) {
   CSSTestHelper helper;

   helper.AddCSSRules("div:nth-child(2) { }");
   RuleSet& rule_set = helper.GetRuleSet();
   AtomicString str("div");
   const TerminatedArray<RuleData>* rules = rule_set.TagRules(str);
   ASSERT_EQ(1u, rules->size());
   ASSERT_EQ(str, rules->at(0).Selector().TagQName().LocalName());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_ClassThenId) {
   CSSTestHelper helper;

   helper.AddCSSRules(".class#id { }");
   RuleSet& rule_set = helper.GetRuleSet();
   AtomicString str("id");
   // id is prefered over class even if class preceeds it in the selector.
   const TerminatedArray<RuleData>* rules = rule_set.IdRules(str);
   ASSERT_EQ(1u, rules->size());
   AtomicString class_str("class");
   ASSERT_EQ(class_str, rules->at(0).Selector().Value());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_IdThenClass) {
   CSSTestHelper helper;

   helper.AddCSSRules("#id.class { }");
   RuleSet& rule_set = helper.GetRuleSet();
   AtomicString str("id");
   const TerminatedArray<RuleData>* rules = rule_set.IdRules(str);
   ASSERT_EQ(1u, rules->size());
   ASSERT_EQ(str, rules->at(0).Selector().Value());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_AttrThenId) {
   CSSTestHelper helper;

   helper.AddCSSRules("[attr]#id { }");
   RuleSet& rule_set = helper.GetRuleSet();
   AtomicString str("id");
   const TerminatedArray<RuleData>* rules = rule_set.IdRules(str);
   ASSERT_EQ(1u, rules->size());
   AtomicString attr_str("attr");
   ASSERT_EQ(attr_str, rules->at(0).Selector().Attribute().LocalName());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_TagThenAttrThenId) {
   CSSTestHelper helper;

   helper.AddCSSRules("div[attr]#id { }");
   RuleSet& rule_set = helper.GetRuleSet();
   AtomicString str("id");
   const TerminatedArray<RuleData>* rules = rule_set.IdRules(str);
   ASSERT_EQ(1u, rules->size());
   AtomicString tag_str("div");
   ASSERT_EQ(tag_str, rules->at(0).Selector().TagQName().LocalName());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_DivWithContent) {
   CSSTestHelper helper;

   helper.AddCSSRules("div::content { }");
   RuleSet& rule_set = helper.GetRuleSet();
   AtomicString str("div");
   const TerminatedArray<RuleData>* rules = rule_set.TagRules(str);
   ASSERT_EQ(1u, rules->size());
   AtomicString value_str("content");
   ASSERT_EQ(value_str, rules->at(0).Selector().TagHistory()->Value());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_Host) {
   CSSTestHelper helper;

   helper.AddCSSRules(":host { }");
   RuleSet& rule_set = helper.GetRuleSet();
   const HeapVector<RuleData>* rules = rule_set.ShadowHostRules();
   ASSERT_EQ(1u, rules->size());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_HostWithId) {
   CSSTestHelper helper;

   helper.AddCSSRules(":host(#x) { }");
   RuleSet& rule_set = helper.GetRuleSet();
   const HeapVector<RuleData>* rules = rule_set.ShadowHostRules();
   ASSERT_EQ(1u, rules->size());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_HostContext) {
   CSSTestHelper helper;

   helper.AddCSSRules(":host-context(*) { }");
   RuleSet& rule_set = helper.GetRuleSet();
   const HeapVector<RuleData>* rules = rule_set.ShadowHostRules();
   ASSERT_EQ(1u, rules->size());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_HostContextWithId) {
   CSSTestHelper helper;

   helper.AddCSSRules(":host-context(#x) { }");
   RuleSet& rule_set = helper.GetRuleSet();
   const HeapVector<RuleData>* rules = rule_set.ShadowHostRules();
   ASSERT_EQ(1u, rules->size());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_HostAndHostContextNotInRightmost) {
   CSSTestHelper helper;

   helper.AddCSSRules(":host-context(#x) .y, :host(.a) > #b  { }");
   RuleSet& rule_set = helper.GetRuleSet();
   const HeapVector<RuleData>* shadow_rules = rule_set.ShadowHostRules();
   const TerminatedArray<RuleData>* id_rules = rule_set.IdRules("b");
   const TerminatedArray<RuleData>* class_rules = rule_set.ClassRules("y");
   ASSERT_EQ(0u, shadow_rules->size());
   ASSERT_EQ(1u, id_rules->size());
   ASSERT_EQ(1u, class_rules->size());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_HostAndClass) {
   CSSTestHelper helper;

   helper.AddCSSRules(".foo:host { }");
   RuleSet& rule_set = helper.GetRuleSet();
   const HeapVector<RuleData>* rules = rule_set.ShadowHostRules();
   ASSERT_EQ(0u, rules->size());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_HostContextAndClass) {
   CSSTestHelper helper;

   helper.AddCSSRules(".foo:host-context(*) { }");
   RuleSet& rule_set = helper.GetRuleSet();
   const HeapVector<RuleData>* rules = rule_set.ShadowHostRules();
   ASSERT_EQ(0u, rules->size());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_Focus) {
   CSSTestHelper helper;

   helper.AddCSSRules(":focus { }");
   helper.AddCSSRules("[attr]:focus { }");
   RuleSet& rule_set = helper.GetRuleSet();
   const HeapVector<RuleData>* rules = rule_set.FocusPseudoClassRules();
   ASSERT_EQ(2u, rules->size());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_LinkVisited) {
   CSSTestHelper helper;

   helper.AddCSSRules(":link { }");
   helper.AddCSSRules("[attr]:link { }");
   helper.AddCSSRules(":visited { }");
   helper.AddCSSRules("[attr]:visited { }");
   helper.AddCSSRules(":-webkit-any-link { }");
   helper.AddCSSRules("[attr]:-webkit-any-link { }");
   RuleSet& rule_set = helper.GetRuleSet();
   const HeapVector<RuleData>* rules = rule_set.LinkPseudoClassRules();
   ASSERT_EQ(6u, rules->size());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_Cue) {
   CSSTestHelper helper;

   helper.AddCSSRules("::cue(b) { }");
   helper.AddCSSRules("video::cue(u) { }");
   RuleSet& rule_set = helper.GetRuleSet();
   const HeapVector<RuleData>* rules = rule_set.CuePseudoRules();
   ASSERT_EQ(2u, rules->size());
 }

 TEST(RuleSetTest, findBestRuleSetAndAdd_PlaceholderPseudo) {
   CSSTestHelper helper;

   helper.AddCSSRules("::placeholder { }");
   helper.AddCSSRules("input::placeholder { }");
   RuleSet& rule_set = helper.GetRuleSet();
   const HeapVector<RuleData>* rules = rule_set.PlaceholderPseudoRules();
   ASSERT_EQ(2u, rules->size());
 }

 TEST(RuleSetTest, SelectorIndexLimit) {
   StringBuilder builder;

   // We use 13 bits to storing the selector start index in RuleData. This is a
   // test to check that we don't regress. We WONTFIX issues asking for more
   // since 2^13 simple selectors in a style rule is already excessive.
   for (unsigned i = 0; i < 8191; i++)
     builder.Append("div,");

   builder.Append("b,span {}");

   CSSTestHelper helper;
   helper.AddCSSRules(builder.ToString().Ascii().data());
   const RuleSet& rule_set = helper.GetRuleSet();
   const HeapTerminatedArray<RuleData>* rules = rule_set.TagRules("b");
   ASSERT_EQ(1u, rules->size());
   EXPECT_EQ("b", rules->at(0).Selector().TagQName().LocalName());
   EXPECT_FALSE(rule_set.TagRules("span"));
 }

 }  // namespace blink
	/*
	* Copyright (c) 2014, Google Inc. All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	* 3. Neither the name of Opera Software ASA nor the names of its
	* contributors may be used to endorse or promote products derived
	* from this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
	* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
	* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
	* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	* OF THE POSSIBILITY OF SUCH DAMAGE.
	*/

	#include "core/css/RuleSet.h"

	#include "core/css/CSSTestHelper.h"
	#include "platform/wtf/text/StringBuilder.h"
	#include "testing/gtest/include/gtest/gtest.h"

	namespace blink {

	TEST(RuleSetTest, findBestRuleSetAndAdd_CustomPseudoElements) {
	CSSTestHelper helper;

	helper.AddCSSRules("summary::-webkit-details-marker { }");
	RuleSet& rule_set = helper.GetRuleSet();
	AtomicString str("-webkit-details-marker");
	const TerminatedArray<RuleData>* rules =
	rule_set.ShadowPseudoElementRules(str);
	ASSERT_EQ(1u, rules->size());
	ASSERT_EQ(str, rules->at(0).Selector().Value());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_Id) {
	CSSTestHelper helper;

	helper.AddCSSRules("#id { }");
	RuleSet& rule_set = helper.GetRuleSet();
	AtomicString str("id");
	const TerminatedArray<RuleData>* rules = rule_set.IdRules(str);
	ASSERT_EQ(1u, rules->size());
	ASSERT_EQ(str, rules->at(0).Selector().Value());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_NthChild) {
	CSSTestHelper helper;

	helper.AddCSSRules("div:nth-child(2) { }");
	RuleSet& rule_set = helper.GetRuleSet();
	AtomicString str("div");
	const TerminatedArray<RuleData>* rules = rule_set.TagRules(str);
	ASSERT_EQ(1u, rules->size());
	ASSERT_EQ(str, rules->at(0).Selector().TagQName().LocalName());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_ClassThenId) {
	CSSTestHelper helper;

	helper.AddCSSRules(".class#id { }");
	RuleSet& rule_set = helper.GetRuleSet();
	AtomicString str("id");
	// id is prefered over class even if class preceeds it in the selector.
	const TerminatedArray<RuleData>* rules = rule_set.IdRules(str);
	ASSERT_EQ(1u, rules->size());
	AtomicString class_str("class");
	ASSERT_EQ(class_str, rules->at(0).Selector().Value());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_IdThenClass) {
	CSSTestHelper helper;

	helper.AddCSSRules("#id.class { }");
	RuleSet& rule_set = helper.GetRuleSet();
	AtomicString str("id");
	const TerminatedArray<RuleData>* rules = rule_set.IdRules(str);
	ASSERT_EQ(1u, rules->size());
	ASSERT_EQ(str, rules->at(0).Selector().Value());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_AttrThenId) {
	CSSTestHelper helper;

	helper.AddCSSRules("[attr]#id { }");
	RuleSet& rule_set = helper.GetRuleSet();
	AtomicString str("id");
	const TerminatedArray<RuleData>* rules = rule_set.IdRules(str);
	ASSERT_EQ(1u, rules->size());
	AtomicString attr_str("attr");
	ASSERT_EQ(attr_str, rules->at(0).Selector().Attribute().LocalName());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_TagThenAttrThenId) {
	CSSTestHelper helper;

	helper.AddCSSRules("div[attr]#id { }");
	RuleSet& rule_set = helper.GetRuleSet();
	AtomicString str("id");
	const TerminatedArray<RuleData>* rules = rule_set.IdRules(str);
	ASSERT_EQ(1u, rules->size());
	AtomicString tag_str("div");
	ASSERT_EQ(tag_str, rules->at(0).Selector().TagQName().LocalName());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_DivWithContent) {
	CSSTestHelper helper;

	helper.AddCSSRules("div::content { }");
	RuleSet& rule_set = helper.GetRuleSet();
	AtomicString str("div");
	const TerminatedArray<RuleData>* rules = rule_set.TagRules(str);
	ASSERT_EQ(1u, rules->size());
	AtomicString value_str("content");
	ASSERT_EQ(value_str, rules->at(0).Selector().TagHistory()->Value());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_Host) {
	CSSTestHelper helper;

	helper.AddCSSRules(":host { }");
	RuleSet& rule_set = helper.GetRuleSet();
	const HeapVector<RuleData>* rules = rule_set.ShadowHostRules();
	ASSERT_EQ(1u, rules->size());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_HostWithId) {
	CSSTestHelper helper;

	helper.AddCSSRules(":host(#x) { }");
	RuleSet& rule_set = helper.GetRuleSet();
	const HeapVector<RuleData>* rules = rule_set.ShadowHostRules();
	ASSERT_EQ(1u, rules->size());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_HostContext) {
	CSSTestHelper helper;

	helper.AddCSSRules(":host-context(*) { }");
	RuleSet& rule_set = helper.GetRuleSet();
	const HeapVector<RuleData>* rules = rule_set.ShadowHostRules();
	ASSERT_EQ(1u, rules->size());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_HostContextWithId) {
	CSSTestHelper helper;

	helper.AddCSSRules(":host-context(#x) { }");
	RuleSet& rule_set = helper.GetRuleSet();
	const HeapVector<RuleData>* rules = rule_set.ShadowHostRules();
	ASSERT_EQ(1u, rules->size());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_HostAndHostContextNotInRightmost) {
	CSSTestHelper helper;

	helper.AddCSSRules(":host-context(#x) .y, :host(.a) > #b { }");
	RuleSet& rule_set = helper.GetRuleSet();
	const HeapVector<RuleData>* shadow_rules = rule_set.ShadowHostRules();
	const TerminatedArray<RuleData>* id_rules = rule_set.IdRules("b");
	const TerminatedArray<RuleData>* class_rules = rule_set.ClassRules("y");
	ASSERT_EQ(0u, shadow_rules->size());
	ASSERT_EQ(1u, id_rules->size());
	ASSERT_EQ(1u, class_rules->size());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_HostAndClass) {
	CSSTestHelper helper;

	helper.AddCSSRules(".foo:host { }");
	RuleSet& rule_set = helper.GetRuleSet();
	const HeapVector<RuleData>* rules = rule_set.ShadowHostRules();
	ASSERT_EQ(0u, rules->size());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_HostContextAndClass) {
	CSSTestHelper helper;

	helper.AddCSSRules(".foo:host-context(*) { }");
	RuleSet& rule_set = helper.GetRuleSet();
	const HeapVector<RuleData>* rules = rule_set.ShadowHostRules();
	ASSERT_EQ(0u, rules->size());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_Focus) {
	CSSTestHelper helper;

	helper.AddCSSRules(":focus { }");
	helper.AddCSSRules("[attr]:focus { }");
	RuleSet& rule_set = helper.GetRuleSet();
	const HeapVector<RuleData>* rules = rule_set.FocusPseudoClassRules();
	ASSERT_EQ(2u, rules->size());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_LinkVisited) {
	CSSTestHelper helper;

	helper.AddCSSRules(":link { }");
	helper.AddCSSRules("[attr]:link { }");
	helper.AddCSSRules(":visited { }");
	helper.AddCSSRules("[attr]:visited { }");
	helper.AddCSSRules(":-webkit-any-link { }");
	helper.AddCSSRules("[attr]:-webkit-any-link { }");
	RuleSet& rule_set = helper.GetRuleSet();
	const HeapVector<RuleData>* rules = rule_set.LinkPseudoClassRules();
	ASSERT_EQ(6u, rules->size());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_Cue) {
	CSSTestHelper helper;

	helper.AddCSSRules("::cue(b) { }");
	helper.AddCSSRules("video::cue(u) { }");
	RuleSet& rule_set = helper.GetRuleSet();
	const HeapVector<RuleData>* rules = rule_set.CuePseudoRules();
	ASSERT_EQ(2u, rules->size());
	}

	TEST(RuleSetTest, findBestRuleSetAndAdd_PlaceholderPseudo) {
	CSSTestHelper helper;

	helper.AddCSSRules("::placeholder { }");
	helper.AddCSSRules("input::placeholder { }");
	RuleSet& rule_set = helper.GetRuleSet();
	const HeapVector<RuleData>* rules = rule_set.PlaceholderPseudoRules();
	ASSERT_EQ(2u, rules->size());
	}

	TEST(RuleSetTest, SelectorIndexLimit) {
	StringBuilder builder;

	// We use 13 bits to storing the selector start index in RuleData. This is a
	// test to check that we don't regress. We WONTFIX issues asking for more
	// since 2^13 simple selectors in a style rule is already excessive.
	for (unsigned i = 0; i < 8191; i++)
	builder.Append("div,");

	builder.Append("b,span {}");

	CSSTestHelper helper;
	helper.AddCSSRules(builder.ToString().Ascii().data());
	const RuleSet& rule_set = helper.GetRuleSet();
	const HeapTerminatedArray<RuleData>* rules = rule_set.TagRules("b");
	ASSERT_EQ(1u, rules->size());
	EXPECT_EQ("b", rules->at(0).Selector().TagQName().LocalName());
	EXPECT_FALSE(rule_set.TagRules("span"));
	}

	} // namespace blink