Add GURL::EqualsIgnoringRef().

url/url_util_unittest.cc

Index: url/url_util_unittest.cc
diff --git a/url/url_util_unittest.cc b/url/url_util_unittest.cc
index a3b61fff8a6ae17b31f2bfa81e74ef504920bc6d..e51b0241a3ccb9e45ed5cd518f4712efdee6a36c 100644
--- a/url/url_util_unittest.cc
+++ b/url/url_util_unittest.cc
@@ -433,4 +433,62 @@ TEST(URLUtilTest, IsAboutBlank) {
     EXPECT_FALSE(IsAboutBlank(GURL(url)));
 }
 
+TEST(URLUtilTest, EqualsIgnoringRef) {
+  const struct {
+    const char* url_a;
+    const char* url_b;
+    bool are_equals;
+  } kTestCases[] = {
+      // No ref.
+      {"http://a.com", "http://a.com", true},
+      {"http://a.com", "http://b.com", false},
+
+      // Same Ref.
+      {"http://a.com#foo", "http://a.com#foo", true},
+      {"http://a.com#foo", "http://b.com#foo", false},
+
+      // Different Refs.
+      {"http://a.com#foo", "http://a.com#bar", true},
+      {"http://a.com#foo", "http://b.com#bar", false},
+
+      // One has a ref, the other doesn't.
+      {"http://a.com#foo", "http://a.com", true},
+      {"http://a.com#foo", "http://b.com", false},
+
+      // Empty refs.
+      {"http://a.com#", "http://a.com#", true},
+      {"http://a.com#", "http://a.com", true},
+
+      // URLs that differ only by their last character.
+      {"http://aaa", "http://aab", false},
+      {"http://aaa#foo", "http://aab#foo", false},
+
+      // Different size of the part before the ref.
+      {"http://123#a", "http://123456#a", false},
+
+      // Blob URLs
+      {"blob:http://a.com#foo", "blob:http://a.com#foo", true},
+      {"blob:http://a.com#foo", "blob:http://a.com#bar", true},
+      {"blob:http://a.com#foo", "blob:http://b.com#bar", false},
+
+      // Filesystem URLs
+      {"filesystem:http://a.com#foo", "filesystem:http://a.com#foo", true},
+      {"filesystem:http://a.com#foo", "filesystem:http://a.com#bar", true},
+      {"filesystem:http://a.com#foo", "filesystem:http://b.com#bar", false},
+  };
+
+  for (const auto& test_case : kTestCases) {
+    SCOPED_TRACE(testing::Message()
+                 << std::endl
+                 << "url_a = " << test_case.url_a << std::endl
+                 << "url_b = " << test_case.url_b << std::endl);
+    // A versus B.
+    EXPECT_EQ(test_case.are_equals,
+              GURL(test_case.url_a).EqualsIgnoringRef(GURL(test_case.url_b)));
+    // B versus A.
+    EXPECT_EQ(test_case.are_equals,
+              GURL(test_case.url_b).EqualsIgnoringRef(GURL(test_case.url_a)));
+  }
+}
+
 }  // namespace url