Schedule a type selector invalidation set for RuleSet invalidations.

third_party/WebKit/Source/core/dom/StyleEngineTest.cpp

 // 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 "core/dom/StyleEngine.h"
 
 #include "core/css/CSSRuleList.h"
 #include "core/css/CSSStyleRule.h"
 #include "core/css/CSSStyleSheet.h"
 #include "core/css/StyleSheetContents.h"
@@ skipping 126 matching lines @@
   // Check that we did not use a cached StyleSheetContents after the garbage
   // collection.
   EXPECT_FALSE(sheet1->contents()->isUsedFromTextCache());
 }
 
 TEST_F(StyleEngineTest, RuleSetInvalidationTypeSelectors) {
   document().body()->setInnerHTML(
       "<div>"
       "  <span></span>"
       "  <div></div>"
-      "</div>");
+      "</div>"
+      "<b></b><b></b><b></b><b></b>"
+      "<i id=i>"
+      "  <i>"
+      "    <b></b>"
+      "  </i>"
+      "</i>");
 
   document().view()->updateAllLifecyclePhases();
 
   unsigned beforeCount = styleEngine().styleForElementCount();
   EXPECT_EQ(
-      scheduleInvalidationsForRules(document(), "span { background: green}"),
-      RuleSetInvalidationsScheduled);
+      RuleSetInvalidationsScheduled,
+      scheduleInvalidationsForRules(document(), "span { background: green}"));
   document().view()->updateAllLifecyclePhases();
   unsigned afterCount = styleEngine().styleForElementCount();
   EXPECT_EQ(1u, afterCount - beforeCount);
 
   beforeCount = afterCount;
-  EXPECT_EQ(scheduleInvalidationsForRules(document(),
-                                          "body div { background: green}"),
-            RuleSetInvalidationsScheduled);
+  EXPECT_EQ(RuleSetInvalidationsScheduled,
+            scheduleInvalidationsForRules(document(),
+                                          "body div { background: green}"));
   document().view()->updateAllLifecyclePhases();
   afterCount = styleEngine().styleForElementCount();
   EXPECT_EQ(2u, afterCount - beforeCount);
 
   EXPECT_EQ(
-      scheduleInvalidationsForRules(document(), "div * { background: green}"),
-      RuleSetInvalidationFullRecalc);
+      RuleSetInvalidationFullRecalc,
+      scheduleInvalidationsForRules(document(), "div * { background: green}"));
+  document().view()->updateAllLifecyclePhases();
+
+  beforeCount = styleEngine().styleForElementCount();
+  EXPECT_EQ(
+      RuleSetInvalidationsScheduled,
+      scheduleInvalidationsForRules(document(), "#i b { background: green}"));
+  document().view()->updateAllLifecyclePhases();
+  afterCount = styleEngine().styleForElementCount();
+  EXPECT_EQ(1u, afterCount - beforeCount);
 }
 
 TEST_F(StyleEngineTest, RuleSetInvalidationHost) {
   document().body()->setInnerHTML("<div id=nohost></div><div id=host></div>");
   Element* host = document().getElementById("host");
   ASSERT_TRUE(host);
 
   ShadowRootInit init;
   init.setMode("open");
   ShadowRoot* shadowRoot = host->attachShadow(
@@ skipping 232 matching lines @@
 
   styleRule->style()->setProperty("color", "green", "", ASSERT_NO_EXCEPTION);
   document().view()->updateAllLifecyclePhases();
 
   ASSERT_TRUE(t1->computedStyle());
   EXPECT_EQ(makeRGB(0, 128, 0),
             t1->computedStyle()->visitedDependentColor(CSSPropertyColor));
 }
 
 }  // namespace blink