Setting selectorText of PageRule accepts invalid selectors

third_party/WebKit/Source/core/css/CSSPageRuleTest.cpp

Index: third_party/WebKit/Source/core/css/CSSPageRuleTest.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSPageRuleTest.cpp b/third_party/WebKit/Source/core/css/CSSPageRuleTest.cpp
index b19737f552e7489871c42728a351ee7a50c9e513..c452af8bcdd55a73e452f9381c9b61a7548a71c4 100644
--- a/third_party/WebKit/Source/core/css/CSSPageRuleTest.cpp
+++ b/third_party/WebKit/Source/core/css/CSSPageRuleTest.cpp
@@ -26,4 +26,29 @@ TEST(CSSPageRule, Serializing)
     }
 }
 
+TEST(CSSPageRule, selectorText)
+{
+    CSSTestHelper helper;
+
+    const char* cssRule = "@page :left { size: auto; }";
+    helper.addCSSRules(cssRule);
+    ASSERT(helper.cssRules());
+    EXPECT_EQ(1u, helper.cssRules()->length());
+
+    CSSPageRule* pageRule = toCSSPageRule(helper.cssRules()->item(0));
+    EXPECT_EQ(":left", pageRule->selectorText());
+
+    // set invalid page selector.
+    pageRule->setSelectorText(":hover");
+    EXPECT_EQ(":left", pageRule->selectorText());
+
+    // set page pseudo class selector.
+    pageRule->setSelectorText(":right");
+    EXPECT_EQ(":right", pageRule->selectorText());
+
+    // set page type selector.
+    pageRule->setSelectorText("namedpage");
+    EXPECT_EQ("namedpage", pageRule->selectorText());
+}
+
 } // namespace blink