Start refractoring extension permissions into ExtensionPermissionSet.

chrome/common/extensions/url_pattern_set_unittest.cc

 // Copyright (c) 2011 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/extensions/extension.h"
 
 #include "googleurl/src/gurl.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+namespace {
+
+static void AssertEqualExtents(const URLPatternSet& extent1,
+                               const URLPatternSet& extent2) {
+  URLPatternList patterns1 = extent1.patterns();
+  URLPatternList patterns2 = extent2.patterns();
+  std::set<std::string> strings1;
+  EXPECT_EQ(patterns1.size(), patterns2.size());
+
+  for (size_t i = 0; i < patterns1.size(); ++i)
+    strings1.insert(patterns1.at(i).GetAsString());
+
+  std::set<std::string> strings2;
+  for (size_t i = 0; i < patterns2.size(); ++i)
+    strings2.insert(patterns2.at(i).GetAsString());
+
+  EXPECT_EQ(strings1, strings2);
+}
+
+} // namespace
+
 static const int kAllSchemes =
     URLPattern::SCHEME_HTTP |
     URLPattern::SCHEME_HTTPS |
     URLPattern::SCHEME_FILE |
     URLPattern::SCHEME_FTP |
     URLPattern::SCHEME_CHROMEUI;
 
 TEST(URLPatternSetTest, Empty) {
   URLPatternSet extent;
   EXPECT_FALSE(extent.MatchesURL(GURL("http://www.foo.com/bar")));
@@ skipping 33 matching lines @@
   URLPatternSet extent3;
   extent3.AddPattern(URLPattern(kAllSchemes, "http://www.google.com/q/*"));
   extent3.AddPattern(URLPattern(kAllSchemes, "http://www.yahoo.com/b/*"));
 
   EXPECT_FALSE(extent1.OverlapsWith(extent2));
   EXPECT_FALSE(extent2.OverlapsWith(extent1));
 
   EXPECT_TRUE(extent1.OverlapsWith(extent3));
   EXPECT_TRUE(extent3.OverlapsWith(extent1));
 }
+
+TEST(URLPatternSetTest, CreateUnion) {
+  URLPatternSet empty_extent;
+
+  URLPatternSet extent1;
+  extent1.AddPattern(URLPattern(kAllSchemes, "http://www.google.com/f*"));
+  extent1.AddPattern(URLPattern(kAllSchemes, "http://www.yahoo.com/b*"));
+
+  URLPatternSet expected;
+  expected.AddPattern(URLPattern(kAllSchemes, "http://www.google.com/f*"));
+  expected.AddPattern(URLPattern(kAllSchemes, "http://www.yahoo.com/b*"));
+
+  // Union with an empty set.
+  URLPatternSet result;
+  URLPatternSet::CreateUnion(extent1, empty_extent, &result);
+  AssertEqualExtents(expected, result);
+
+  // Union with a real set (including a duplicate).
+  URLPatternSet extent2;
+  extent2.AddPattern(URLPattern(kAllSchemes, "http://www.reddit.com/f*"));
+  extent2.AddPattern(URLPattern(kAllSchemes, "http://www.yahoo.com/z*"));
+  extent2.AddPattern(URLPattern(kAllSchemes, "http://www.google.com/f*"));
+
+  expected.AddPattern(URLPattern(kAllSchemes, "http://www.reddit.com/f*"));
+  expected.AddPattern(URLPattern(kAllSchemes, "http://www.yahoo.com/z*"));
+
+  result.ClearPatterns();
+  URLPatternSet::CreateUnion(extent1, extent2, &result);
+  AssertEqualExtents(expected, result);
+}