Fix b180514: Some exception entries cannot be deleted from a setting panel.

chrome/common/content_settings_pattern_unittest.cc

 // Copyright (c) 2012 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 "chrome/common/content_settings_pattern.h"
 
 #include "googleurl/src/gurl.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
@@ skipping 140 matching lines @@
   EXPECT_FALSE(pattern.Matches(GURL("http://foo.www.example.com")));
 
   pattern = ContentSettingsPattern::FromURLNoWildcard(
       GURL("https://www.example.com"));
   EXPECT_TRUE(pattern.IsValid());
   EXPECT_STREQ("https://www.example.com:443", pattern.ToString().c_str());
   EXPECT_FALSE(pattern.Matches(GURL("http://www.example.com")));
   EXPECT_TRUE(pattern.Matches(GURL("https://www.example.com")));
   EXPECT_FALSE(pattern.Matches(GURL("http://foo.www.example.com")));
 
-   // Pattern for filesystem URLs
+  // Pattern for filesystem URLs
   pattern =
       ContentSettingsPattern::FromURLNoWildcard(
           GURL("filesystem:http://www.google.com/temporary/"));
   EXPECT_TRUE(pattern.IsValid());
   EXPECT_TRUE(pattern.Matches(GURL("http://www.google.com")));
   EXPECT_FALSE(pattern.Matches(GURL("http://foo.www.google.com")));
   EXPECT_TRUE(pattern.Matches(
       GURL("filesystem:http://www.google.com/persistent/")));
   EXPECT_FALSE(pattern.Matches(
       GURL("filesystem:https://www.google.com/persistent/")));
@@ skipping 264 matching lines @@
 
   // Pattern strings with invalid port parts.
   EXPECT_FALSE(Pattern("example.com:abc").IsValid());
   EXPECT_STREQ("", Pattern("example.com:abc").ToString().c_str());
 
   // Invalid file pattern strings.
   EXPECT_FALSE(Pattern("file://").IsValid());
   EXPECT_STREQ("", Pattern("file://").ToString().c_str());
   EXPECT_FALSE(Pattern("file:///foo/bar.html:8080").IsValid());
   EXPECT_STREQ("", Pattern("file:///foo/bar.html:8080").ToString().c_str());
+
+  EXPECT_FALSE(Pattern(".").IsValid());
+  EXPECT_STREQ("", Pattern(".").ToString().c_str());
+
+  // Host having consecutive dots.
+  EXPECT_FALSE(Pattern("www.example.com..").IsValid());
+  EXPECT_STREQ("", Pattern("www.example.com..").ToString().c_str());
+  EXPECT_FALSE(Pattern("www..example.com").IsValid());
+  EXPECT_STREQ("", Pattern("www..example.com").ToString().c_str());
 }
 
 TEST(ContentSettingsPatternTest, UnequalOperator) {
   EXPECT_TRUE(Pattern("http://www.foo.com") != Pattern("http://www.foo.com*"));
   EXPECT_TRUE(Pattern("http://www.foo.com*") !=
               ContentSettingsPattern::Wildcard());
 
   EXPECT_TRUE(Pattern("http://www.foo.com") !=
               ContentSettingsPattern::Wildcard());
 
@@ skipping 201 matching lines @@
   // file:/// normalization.
   EXPECT_STREQ("file:///tmp/test.html",
                Pattern("file:///tmp/bar/../test.html").ToString().c_str());
 
   // Invalid patterns.
   EXPECT_STREQ("", Pattern("*example.com").ToString().c_str());
   EXPECT_STREQ("", Pattern("example.*").ToString().c_str());
   EXPECT_STREQ("", Pattern("*\xC4\x87ira.com").ToString().c_str());
   EXPECT_STREQ("", Pattern("\xC4\x87ira.*").ToString().c_str());
 }