Build a new TokenCacheService so I can stop using TokenService for something it wasn't designed for.

chrome/browser/extensions/api/token_cache/token_cache_unittest.cc

+// Copyright (c) 2013 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 "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/time.h"
+#include "chrome/browser/extensions/api/token_cache/token_cache.h"
+#include "chrome/common/chrome_notification_types.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using base::Time;
+using base::TimeDelta;
+
+namespace {
+  base::TimeDelta zero;

[dcheng, 2013/03/04 22:40:59]

Indent is incorrect. Also, I think this will create a static initializer, which
is not allowed.

[Pete Williamson, 2013/03/05 19:42:25]

Done.

+}  // namespace
+
+class TokenCacheTest : public testing::Test {
+ public:
+  TokenCacheTest() : cache_(NULL) {}
+  virtual ~TokenCacheTest() {}
+
+  // Methods from testing::Test.
+  virtual void SetUp() OVERRIDE {}
+  virtual void TearDown() OVERRIDE {
+    cache_.token_cache_.clear();

[dcheng, 2013/03/04 22:40:59]

Why are we doing this?

[Pete Williamson, 2013/03/05 19:42:25]

To make sure the cache is cleared out for the next run, we use the same cache_
for multiple tests.

+  }
+
+  size_t CacheSize() {
+    return cache_.token_cache_.size();
+  }
+
+  bool HasMatch(std::string token_name) {
+    return cache_.FindMatch(token_name) != cache_.token_cache_.end();
+  }
+
+  void InsertExpiredToken(std::string token_name, std::string token_value) {
+

[dcheng, 2013/03/04 22:40:59]

Extra newline...

[Pete Williamson, 2013/03/05 19:42:25]

Done.

+    EXPECT_TRUE(!HasMatch(token_name));
+
+    // Compute a time value for yesterday
+    Time now = Time::Now();
+    TimeDelta one_day = one_day.FromDays(1);
+    Time yesterday = now - one_day;
+
+    TokenCacheData token_data;
+    token_data.token_name = token_name;
+    token_data.token = token_value;
+    token_data.expiration_time = yesterday;
+
+    cache_.token_cache_.push_back(token_data);
+  }
+
+ protected:
+  TokenCacheService cache_;
+
+};
+
+TEST_F(TokenCacheTest, SaveTokenTest) {
+

[dcheng, 2013/03/04 22:40:59]

Extra newline...

[Pete Williamson, 2013/03/05 19:42:25]

Done.

+  cache_.StoreToken("foo", "bar", zero);
+
+  EXPECT_EQ(CacheSize(), (size_t) 1);
+  EXPECT_TRUE(HasMatch("foo"));
+}
+
+TEST_F(TokenCacheTest, RetrieveTokenTest) {
+  // TODO: does it make the test nicer to make these std::string and not rely on
+  // autoconverting?

[dcheng, 2013/03/04 22:40:59]

Remove this TODO (I would argue the answer is no).

[Pete Williamson, 2013/03/05 19:42:25]

Done.

+  cache_.StoreToken("Mozart", "Eine Kleine Nacht Musik", zero);
+  cache_.StoreToken("Bach", "Brandenburg Concerto #3", zero);
+  cache_.StoreToken("Beethoven", "Emperor Piano Concerto #5", zero);
+  cache_.StoreToken("Handel", "Water Music", zero);
+  cache_.StoreToken("Chopin", "Heroic", zero);
+
+  std::string found_token = cache_.RetrieveToken("Chopin");
+  EXPECT_EQ("Heroic", found_token);
+}
+
+TEST_F(TokenCacheTest, ReplaceTokenTest) {
+  cache_.StoreToken("Chopin", "Heroic", zero);
+
+  std::string found_token = cache_.RetrieveToken("Chopin");
+  EXPECT_EQ("Heroic", found_token);
+
+  cache_.StoreToken("Chopin", "Military", zero);
+
+  found_token = cache_.RetrieveToken("Chopin");
+  EXPECT_EQ("Military", found_token);
+  EXPECT_EQ(CacheSize(), (size_t) 1);

[dcheng, 2013/03/04 22:40:59]

Don't use C-style casts. In this case, you can just say 1U though.

[Pete Williamson, 2013/03/05 19:42:25]

Done.

+}
+
+TEST_F(TokenCacheTest, SignoutTest) {
+  cache_.StoreToken("foo", "bar", zero);
+  content::Source<TokenCacheService> stub_source(&cache_);
+  content::NotificationDetails stub_details;
+
+  EXPECT_EQ(CacheSize(), (size_t) 1);
+  EXPECT_TRUE(HasMatch("foo"));
+
+  cache_.Observe(chrome::NOTIFICATION_GOOGLE_SIGNED_OUT,
+                 stub_source, stub_details);
+
+  EXPECT_EQ(CacheSize(), (size_t) 0);
+  EXPECT_FALSE(HasMatch("foo"));
+}
+
+TEST_F(TokenCacheTest, ShutdownTest) {
+  cache_.StoreToken("foo", "bar", zero);
+
+  EXPECT_EQ(CacheSize(), (size_t) 1);
+  EXPECT_TRUE(HasMatch("foo"));
+
+  cache_.Shutdown();
+
+  EXPECT_EQ(CacheSize(), (size_t) 0);
+  EXPECT_FALSE(HasMatch("foo"));
+}
+
+TEST_F(TokenCacheTest, TokenExpireTest) {
+  // Use the fact that we are friends to insert an expired token.
+  InsertExpiredToken("foo", "bar");
+
+  EXPECT_EQ(CacheSize(), (size_t) 1);
+
+  // If we attempt to find the token, the attempt should fail.
+  EXPECT_FALSE(HasMatch("foo"));
+  EXPECT_EQ(CacheSize(), (size_t) 0);
+
+}