Refactor AO2TS to make it easier to componentize.

components/signin/ios/browser/profile_oauth2_token_service_ios_delegate_unittest.mm

Index: components/signin/ios/browser/profile_oauth2_token_service_ios_delegate_unittest.mm
diff --git a/components/signin/ios/browser/profile_oauth2_token_service_ios_delegate_unittest.mm b/components/signin/ios/browser/profile_oauth2_token_service_ios_delegate_unittest.mm
new file mode 100644
index 0000000000000000000000000000000000000000..bf4b0b2d88b7c07a8a713a818b41cae65e547e49
--- /dev/null
+++ b/components/signin/ios/browser/profile_oauth2_token_service_ios_delegate_unittest.mm
@@ -0,0 +1,380 @@
+// 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 "components/signin/ios/browser/profile_oauth2_token_service_ios_delegate.h"
+
+#include "base/prefs/pref_registry_simple.h"
+#include "base/prefs/testing_pref_service.h"
+#include "base/run_loop.h"
+#include "components/signin/core/browser/profile_oauth2_token_service.h"
+#include "components/signin/core/browser/test_signin_client.h"
+#include "components/signin/core/common/signin_pref_names.h"
+#include "google_apis/gaia/gaia_urls.h"
+#include "google_apis/gaia/oauth2_access_token_consumer.h"
+#include "google_apis/gaia/oauth2_token_service_test_util.h"
+#include "ios/public/test/fake_profile_oauth2_token_service_ios_provider.h"
+#include "net/url_request/test_url_fetcher_factory.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class ProfileOAuth2TokenServiceIOSDelegateTest
+    : public testing::Test,
+      public OAuth2AccessTokenConsumer,
+      public OAuth2TokenService::Observer {
+ public:
+  ProfileOAuth2TokenServiceIOSDelegateTest()
+      : factory_(NULL),
+        client_(&prefs_),
+        token_available_count_(0),
+        token_revoked_count_(0),
+        tokens_loaded_count_(0),
+        access_token_success_(0),
+        access_token_failure_(0),
+        last_access_token_error_(GoogleServiceAuthError::NONE) {}
+
+  void SetUp() override {
+    prefs_.registry()->RegisterBooleanPref(
+        prefs::kTokenServiceExcludeAllSecondaryAccounts, false);
+    prefs_.registry()->RegisterListPref(
+        prefs::kTokenServiceExcludedSecondaryAccounts);
+
+    factory_.SetFakeResponse(GaiaUrls::GetInstance()->oauth2_revoke_url(), "",
+                             net::HTTP_OK, net::URLRequestStatus::SUCCESS);
+    fake_provider_ = client_.GetIOSProviderAsFake();
+    oauth2_service_delegate_.reset(new ProfileOAuth2TokenServiceIOSDelegate(
+        &client_, &signin_error_controller_));
+    oauth2_service_delegate_->AddObserver(this);
+  }
+
+  void TearDown() override {
+    oauth2_service_delegate_->RemoveObserver(this);
+    oauth2_service_delegate_->Shutdown();
+  }
+
+  // OAuth2AccessTokenConsumer implementation.
+  void OnGetTokenSuccess(const std::string& access_token,
+                         const base::Time& expiration_time) override {
+    ++access_token_success_;
+  }
+
+  void OnGetTokenFailure(const GoogleServiceAuthError& error) override {
+    ++access_token_failure_;
+    last_access_token_error_ = error;
+  };
+
+  // OAuth2TokenService::Observer implementation.
+  void OnRefreshTokenAvailable(const std::string& account_id) override {
+    ++token_available_count_;
+  }
+  void OnRefreshTokenRevoked(const std::string& account_id) override {
+    ++token_revoked_count_;
+  }
+  void OnRefreshTokensLoaded() override { ++tokens_loaded_count_; }
+
+  void ResetObserverCounts() {
+    token_available_count_ = 0;
+    token_revoked_count_ = 0;
+    tokens_loaded_count_ = 0;
+    token_available_count_ = 0;
+    access_token_failure_ = 0;
+  }
+
+ protected:
+  base::MessageLoop message_loop_;
+  net::FakeURLFetcherFactory factory_;
+  TestingPrefServiceSimple prefs_;
+  TestSigninClient client_;
+  SigninErrorController signin_error_controller_;
+  ios::FakeProfileOAuth2TokenServiceIOSProvider* fake_provider_;
+  scoped_ptr<ProfileOAuth2TokenServiceIOSDelegate> oauth2_service_delegate_;
+  TestingOAuth2TokenServiceConsumer consumer_;
+  int token_available_count_;
+  int token_revoked_count_;
+  int tokens_loaded_count_;
+  int access_token_success_;
+  int access_token_failure_;
+  GoogleServiceAuthError last_access_token_error_;
+};
+
+TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest,
+       LoadRevokeCredentialsOneAccount) {
+  fake_provider_->AddAccount("account_id");
+  oauth2_service_delegate_->LoadCredentials("account_id");
+  base::RunLoop().RunUntilIdle();
+  EXPECT_EQ(1, token_available_count_);
+  EXPECT_EQ(1, tokens_loaded_count_);
+  EXPECT_EQ(0, token_revoked_count_);
+  EXPECT_EQ(1U, oauth2_service_delegate_->GetAccounts().size());
+  EXPECT_TRUE(oauth2_service_delegate_->RefreshTokenIsAvailable("account_id"));
+
+  ResetObserverCounts();
+  oauth2_service_delegate_->RevokeAllCredentials();
+  EXPECT_EQ(0, token_available_count_);
+  EXPECT_EQ(0, tokens_loaded_count_);
+  EXPECT_EQ(1, token_revoked_count_);
+  EXPECT_EQ(0U, oauth2_service_delegate_->GetAccounts().size());
+  EXPECT_FALSE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_1"));
+}
+
+TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest,
+       LoadRevokeCredentialsMultipleAccounts) {
+  fake_provider_->AddAccount("account_id_1");
+  fake_provider_->AddAccount("account_id_2");
+  fake_provider_->AddAccount("account_id_3");
+  oauth2_service_delegate_->LoadCredentials("account_id_1");
+  base::RunLoop().RunUntilIdle();
+  EXPECT_EQ(3, token_available_count_);
+  EXPECT_EQ(1, tokens_loaded_count_);
+  EXPECT_EQ(0, token_revoked_count_);
+  EXPECT_EQ(3U, oauth2_service_delegate_->GetAccounts().size());
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_1"));
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_2"));
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_3"));
+
+  ResetObserverCounts();
+  oauth2_service_delegate_->RevokeAllCredentials();
+  EXPECT_EQ(0, token_available_count_);
+  EXPECT_EQ(0, tokens_loaded_count_);
+  EXPECT_EQ(3, token_revoked_count_);
+  EXPECT_EQ(0U, oauth2_service_delegate_->GetAccounts().size());
+  EXPECT_FALSE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_1"));
+  EXPECT_FALSE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_2"));
+  EXPECT_FALSE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_3"));
+}
+
+TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest, ReloadCredentials) {
+  fake_provider_->AddAccount("account_id_1");
+  fake_provider_->AddAccount("account_id_2");
+  fake_provider_->AddAccount("account_id_3");
+  oauth2_service_delegate_->LoadCredentials("account_id_1");
+  base::RunLoop().RunUntilIdle();
+
+  // Change the accounts.
+  ResetObserverCounts();
+  fake_provider_->ClearAccounts();
+  fake_provider_->AddAccount("account_id_1");
+  fake_provider_->AddAccount("account_id_4");
+  oauth2_service_delegate_->ReloadCredentials();
+
+  EXPECT_EQ(1, token_available_count_);
+  EXPECT_EQ(0, tokens_loaded_count_);
+  EXPECT_EQ(2, token_revoked_count_);
+  EXPECT_EQ(2U, oauth2_service_delegate_->GetAccounts().size());
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_1"));
+  EXPECT_FALSE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_2"));
+  EXPECT_FALSE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_3"));
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_4"));
+}
+
+TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest,
+       ReloadCredentialsIgnoredIfNoPrimaryAccountId) {
+  // Change the accounts.
+  ResetObserverCounts();
+  fake_provider_->AddAccount("account_id_1");
+  fake_provider_->AddAccount("account_id_2");
+  base::RunLoop().RunUntilIdle();
+
+  oauth2_service_delegate_->ReloadCredentials();
+
+  EXPECT_EQ(0, token_available_count_);
+  EXPECT_EQ(0, tokens_loaded_count_);
+  EXPECT_EQ(0, token_revoked_count_);
+  EXPECT_EQ(0U, oauth2_service_delegate_->GetAccounts().size());
+  EXPECT_FALSE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_1"));
+  EXPECT_FALSE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_2"));
+}
+
+TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest,
+       ReloadCredentialsWithPrimaryAccountId) {
+  // Change the accounts.
+  ResetObserverCounts();
+  fake_provider_->AddAccount("account_id_1");
+  fake_provider_->AddAccount("account_id_2");
+  base::RunLoop().RunUntilIdle();
+
+  oauth2_service_delegate_->ReloadCredentials("account_id_1");
+  EXPECT_EQ(2, token_available_count_);
+  EXPECT_EQ(0, tokens_loaded_count_);
+  EXPECT_EQ(0, token_revoked_count_);
+  EXPECT_EQ(2U, oauth2_service_delegate_->GetAccounts().size());
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_1"));
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_2"));
+}
+
+TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest, ExcludeAllSecondaryAccounts) {
+  // Change the accounts.
+  ResetObserverCounts();
+  fake_provider_->AddAccount("account_id_1");
+  fake_provider_->AddAccount("account_id_2");
+  base::RunLoop().RunUntilIdle();
+
+  oauth2_service_delegate_->ExcludeAllSecondaryAccounts();
+  oauth2_service_delegate_->ReloadCredentials("account_id_1");
+  EXPECT_EQ(1, token_available_count_);
+  EXPECT_EQ(0, tokens_loaded_count_);
+  EXPECT_EQ(0, token_revoked_count_);
+  EXPECT_EQ(1U, oauth2_service_delegate_->GetAccounts().size());
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_1"));
+  EXPECT_FALSE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_2"));
+}
+
+TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest, StartRequestSuccess) {
+  fake_provider_->AddAccount("account_id_1");
+  oauth2_service_delegate_->LoadCredentials("account_id_1");
+  base::RunLoop().RunUntilIdle();
+
+  // Fetch access tokens.
+  ResetObserverCounts();
+  std::vector<std::string> scopes;
+  scopes.push_back("scope");
+  scoped_ptr<OAuth2AccessTokenFetcher> fetcher1(
+      oauth2_service_delegate_->CreateAccessTokenFetcher(
+          "account_id_1", oauth2_service_delegate_->GetRequestContext(), this));
+  fetcher1->Start("foo", "bar", scopes);
+  EXPECT_EQ(0, access_token_success_);
+  EXPECT_EQ(0, access_token_failure_);
+
+  ResetObserverCounts();
+  fake_provider_->IssueAccessTokenForAllRequests();
+  base::RunLoop().RunUntilIdle();
+  EXPECT_EQ(1, access_token_success_);
+  EXPECT_EQ(0, access_token_failure_);
+}
+
+TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest, StartRequestFailure) {
+  fake_provider_->AddAccount("account_id_1");
+  oauth2_service_delegate_->LoadCredentials("account_id_1");
+  base::RunLoop().RunUntilIdle();
+
+  // Fetch access tokens.
+  ResetObserverCounts();
+  std::vector<std::string> scopes;
+  scopes.push_back("scope");
+  scoped_ptr<OAuth2AccessTokenFetcher> fetcher1(
+      oauth2_service_delegate_->CreateAccessTokenFetcher(
+          "account_id_1", oauth2_service_delegate_->GetRequestContext(), this));
+  fetcher1->Start("foo", "bar", scopes);
+  EXPECT_EQ(0, access_token_success_);
+  EXPECT_EQ(0, access_token_failure_);
+
+  ResetObserverCounts();
+  fake_provider_->IssueAccessTokenErrorForAllRequests();
+  base::RunLoop().RunUntilIdle();
+  EXPECT_EQ(0, access_token_success_);
+  EXPECT_EQ(1, access_token_failure_);
+}
+
+TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest, ExcludeSecondaryAccounts) {
+  fake_provider_->AddAccount("account_id_1");
+  fake_provider_->AddAccount("account_id_2");
+  fake_provider_->AddAccount("account_id_3");
+  oauth2_service_delegate_->LoadCredentials("account_id_1");
+  base::RunLoop().RunUntilIdle();
+
+  // Ignore one account should remove it from the list of accounts.
+  ResetObserverCounts();
+  oauth2_service_delegate_->ExcludeSecondaryAccount("account_id_2");
+  oauth2_service_delegate_->ReloadCredentials();
+
+  EXPECT_EQ(0, token_available_count_);
+  EXPECT_EQ(0, tokens_loaded_count_);
+  EXPECT_EQ(1, token_revoked_count_);
+  EXPECT_EQ(2U, oauth2_service_delegate_->GetAccounts().size());
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_1"));
+  EXPECT_FALSE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_2"));
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_3"));
+
+  // Clear ignored account and the refresh token should be available again.
+  ResetObserverCounts();
+  oauth2_service_delegate_->IncludeSecondaryAccount("account_id_2");
+  oauth2_service_delegate_->ReloadCredentials();
+
+  EXPECT_EQ(1, token_available_count_);
+  EXPECT_EQ(0, tokens_loaded_count_);
+  EXPECT_EQ(0, token_revoked_count_);
+  EXPECT_EQ(3U, oauth2_service_delegate_->GetAccounts().size());
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_1"));
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_2"));
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_3"));
+}
+
+// Unit test for for http://crbug.com/453470 .
+TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest, ExcludeSecondaryAccountTwice) {
+  fake_provider_->AddAccount("account_id_1");
+  fake_provider_->AddAccount("account_id_2");
+  oauth2_service_delegate_->LoadCredentials("account_id_1");
+  base::RunLoop().RunUntilIdle();
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_1"));
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_2"));
+
+  // Ignore |account_id_2| twice.
+  oauth2_service_delegate_->ExcludeSecondaryAccount("account_id_2");
+  oauth2_service_delegate_->ExcludeSecondaryAccount("account_id_2");
+  oauth2_service_delegate_->ReloadCredentials();
+
+  // Include |account_id_2| once should add the account back.
+  ResetObserverCounts();
+  oauth2_service_delegate_->IncludeSecondaryAccount("account_id_2");
+  oauth2_service_delegate_->ReloadCredentials();
+
+  EXPECT_EQ(1, token_available_count_);
+  EXPECT_EQ(0, tokens_loaded_count_);
+  EXPECT_EQ(0, token_revoked_count_);
+  EXPECT_EQ(2U, oauth2_service_delegate_->GetAccounts().size());
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_1"));
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_2"));
+}
+
+TEST_F(ProfileOAuth2TokenServiceIOSDelegateTest,
+       LoadRevokeCredentialsClearsExcludedAccounts) {
+  fake_provider_->AddAccount("account_id_1");
+  fake_provider_->AddAccount("account_id_2");
+  fake_provider_->AddAccount("account_id_3");
+
+  std::vector<std::string> excluded_accounts;
+  excluded_accounts.push_back("account_id_2");
+  oauth2_service_delegate_->ExcludeSecondaryAccounts(excluded_accounts);
+  oauth2_service_delegate_->ReloadCredentials("account_id_1");
+  base::RunLoop().RunUntilIdle();
+  EXPECT_EQ(2, token_available_count_);
+  EXPECT_EQ(0, tokens_loaded_count_);
+  EXPECT_EQ(0, token_revoked_count_);
+  EXPECT_EQ(2U, oauth2_service_delegate_->GetAccounts().size());
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_1"));
+  EXPECT_FALSE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_2"));
+  EXPECT_TRUE(
+      oauth2_service_delegate_->RefreshTokenIsAvailable("account_id_3"));
+
+  ResetObserverCounts();
+  oauth2_service_delegate_->RevokeAllCredentials();
+  EXPECT_TRUE(oauth2_service_delegate_->GetExcludedSecondaryAccounts().empty());
+}