Add an OriginFilterBuilder class for [white|black]listing origins.

chrome/browser/browsing_data/origin_filter_builder_unittest.cc

Index: chrome/browser/browsing_data/origin_filter_builder_unittest.cc
diff --git a/chrome/browser/browsing_data/origin_filter_builder_unittest.cc b/chrome/browser/browsing_data/origin_filter_builder_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..17cddc53711d271c6056a3fd1a6e29df44c5ccfc
--- /dev/null
+++ b/chrome/browser/browsing_data/origin_filter_builder_unittest.cc
@@ -0,0 +1,104 @@
+// Copyright 2015 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/browser/browsing_data/origin_filter_builder.h"
+
+#include <algorithm>
+#include <vector>
+
+#include "base/callback.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
+#include "url/origin.h"
+
+namespace url {
+
+TEST(OriginFilterBuilderTest, Empty) {
+  // An empty blacklist matches everything.
+  OriginFilterBuilder builder(OriginFilterBuilder::BLACKLIST);
+  base::Callback<bool(const GURL&)> filter = builder.BuildSameOriginFilter();
+
+  EXPECT_TRUE(filter.Run(GURL("https://www.google.com")));
+  EXPECT_TRUE(filter.Run(GURL("https://www.chrome.com")));
+  EXPECT_TRUE(filter.Run(GURL("invalid url spec")));
+}
+
+TEST(OriginFilterBuilderTest, Whitelist) {
+  OriginFilterBuilder builder(OriginFilterBuilder::WHITELIST);
+  base::Callback<bool(const GURL&)> filter =
+      builder.AddOrigin(Origin(GURL("https://www.google.com")))
+          ->AddOrigin(Origin(GURL("http://www.example.com")))
+          ->BuildSameOriginFilter();
+
+  // Whitelist matches any URL on the specified origins.
+  EXPECT_TRUE(filter.Run(GURL("https://www.google.com")));
+  EXPECT_TRUE(filter.Run(GURL("https://www.google.com/?q=test")));
+  EXPECT_TRUE(filter.Run(GURL("http://www.example.com")));
+  EXPECT_TRUE(filter.Run(GURL("http://www.example.com/index.html")));
+  EXPECT_TRUE(filter.Run(GURL("http://www.example.com/foo/bar")));
+
+  // Subdomains are different origins.
+  EXPECT_FALSE(filter.Run(GURL("https://test.www.google.com")));
+
+  // Different scheme or port is a different origin.
+  EXPECT_FALSE(filter.Run(GURL("https://www.google.com:8000")));
+  EXPECT_FALSE(filter.Run(GURL("https://www.example.com/index.html")));
+
+  // Different host is a different origin.
+  EXPECT_FALSE(filter.Run(GURL("https://www.youtube.com")));
+  EXPECT_FALSE(filter.Run(GURL("https://www.chromium.org")));
+}
+
+TEST(OriginFilterBuilderTest, Blacklist) {
+  OriginFilterBuilder builder(OriginFilterBuilder::BLACKLIST);
+  base::Callback<bool(const GURL&)> filter =
+      builder.AddOrigin(Origin(GURL("https://www.google.com")))
+          ->AddOrigin(Origin(GURL("http://www.example.com")))
+          ->BuildSameOriginFilter();
+
+  // URLS on explicitly specified origins are not matched.
+  EXPECT_FALSE(filter.Run(GURL("https://www.google.com")));
+  EXPECT_FALSE(filter.Run(GURL("https://www.google.com/?q=test")));
+  EXPECT_FALSE(filter.Run(GURL("http://www.example.com")));
+  EXPECT_FALSE(filter.Run(GURL("http://www.example.com/index.html")));
+  EXPECT_FALSE(filter.Run(GURL("http://www.example.com/foo/bar")));
+
+  // Subdomains are different origins.
+  EXPECT_TRUE(filter.Run(GURL("https://test.www.google.com")));
+
+  // The same hosts but with different schemes and hosts are not blacklisted.
+  EXPECT_TRUE(filter.Run(GURL("https://www.google.com:8000")));
+  EXPECT_TRUE(filter.Run(GURL("https://www.example.com/index.html")));
+
+  // Different hosts are not blacklisted.
+  EXPECT_TRUE(filter.Run(GURL("https://www.chrome.com")));
+  EXPECT_TRUE(filter.Run(GURL("https://www.youtube.com")));
+}
+
+TEST(OriginFilterBuilderTest, MatchesURLWithSubdomain) {
+  OriginFilterBuilder builder(OriginFilterBuilder::WHITELIST);
+  base::Callback<bool(const GURL&)> filter =
+      builder.AddOrigin(Origin(GURL("https://www.google.com")))
+          ->BuildDomainFilter();
+
+  // Any URL on the specified origin is matched.
+  EXPECT_TRUE(filter.Run(GURL("https://www.google.com")));
+  EXPECT_TRUE(filter.Run(GURL("https://www.google.com/test.html")));
+
+  // Subdomains are also matched...
+  EXPECT_TRUE(filter.Run(GURL("https://foo.www.google.com")));
+  EXPECT_TRUE(filter.Run(GURL("https://foo.www.google.com/?q=test")));
+  EXPECT_TRUE(filter.Run(GURL("https://foo.bar.www.google.com")));
+  EXPECT_TRUE(filter.Run(GURL("https://foo.bar.www.google.com/test.html")));
+  EXPECT_TRUE(filter.Run(GURL("https://foo.bar.baz.www.google.com")));
+
+  // Superdomains are not matched.
+  EXPECT_FALSE(filter.Run(GURL("https://google.com")));
+
+  // Different hosts are not matched.
+  EXPECT_FALSE(filter.Run(GURL("https://www.chrome.com")));
+  EXPECT_FALSE(filter.Run(GURL("https://www.youtube.com")));

[Mike West, 2016/02/17 15:22:10]

Nit: You could reduce the boilerplate in all of these tests by creating a struct
of test cases and looping through them.

[msramek, 2016/02/18 12:48:43]

Done.

+}
+
+}  // namespace url