Add stream operators for URLPattern and URLPatternSet and unit test for URLPatternSet

BUG=

Review URL: https://codereview.chromium.org/300573002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@282150 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 30 insertions, 0 deletions

diff --git a/extensions/common/url_pattern_set_unittest.cc b/extensions/common/url_pattern_set_unittest.cc
index 267743a7..1ad223e 100644
--- a/extensions/common/url_pattern_set_unittest.cc
+++ b/extensions/common/url_pattern_set_unittest.cc
@@ -4,6 +4,8 @@
 
 #include "extensions/common/url_pattern_set.h"
 
+#include <sstream>
+
 #include "base/values.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
@@ -60,6 +62,34 @@ TEST(URLPatternSetTest, Two) {
   EXPECT_FALSE(set.MatchesURL(GURL("https://www.apple.com/monkey")));
 }
 
+TEST(URLPatternSetTest, StreamOperatorEmpty) {
+  URLPatternSet set;
+
+  std::ostringstream stream;
+  stream << set;
+  EXPECT_EQ("{ }", stream.str());
+}
+
+TEST(URLPatternSetTest, StreamOperatorOne) {
+  URLPatternSet set;
+  AddPattern(&set, "http://www.google.com/*");
+
+  std::ostringstream stream;
+  stream << set;
+  EXPECT_EQ("{ \"http://www.google.com/*\" }", stream.str());
+}
+
+TEST(URLPatternSetTest, StreamOperatorTwo) {
+  URLPatternSet set;
+  AddPattern(&set, "http://www.google.com/*");
+  AddPattern(&set, "http://www.yahoo.com/*");
+
+  std::ostringstream stream;
+  stream << set;
+  EXPECT_EQ("{ \"http://www.google.com/*\", \"http://www.yahoo.com/*\" }",
+            stream.str());
+}
+
 TEST(URLPatternSetTest, OverlapsWith) {
   URLPatternSet set1;
   AddPattern(&set1, "http://www.google.com/f*");