Add URL generator / json parser for getting start_page_token of changes.

google_apis/drive/drive_api_url_generator_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 "google_apis/drive/drive_api_url_generator.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/macros.h"
@@ skipping 236 matching lines @@
             url_generator_.GetFilesTrashUrl("0Bz0bd074").spec());
   EXPECT_EQ("https://www.example.com/drive/v2/files/file%3Afile_id/trash",
             url_generator_.GetFilesTrashUrl("file:file_id").spec());
 
   EXPECT_EQ(
       "https://www.example.com/drive/v2/files/0ADK06pfg/trash?"
       "supportsTeamDrives=true",
       team_drives_url_generator_.GetFilesTrashUrl("0ADK06pfg").spec());
 }
 
+TEST_F(DriveApiUrlGeneratorTest, GetChangesGetStartPageTokenUrl) {
+  EXPECT_EQ(
+      "https://www.example.com/drive/v2/changes/startPageToken?"
+      "supportsTeamDrives=true",
+      team_drives_url_generator_
+          .GetChangesGetStartPageTokenUrl("" /* team_drive_id */)
+          .spec());
+  EXPECT_EQ(
+      "https://www.example.com/drive/v2/changes/startPageToken?"
+      "supportsTeamDrives=true&teamDriveId=TheTeamDriveId",
+      team_drives_url_generator_
+          .GetChangesGetStartPageTokenUrl("TheTeamDriveId")
+          .spec());
+}
+
 TEST_F(DriveApiUrlGeneratorTest, GetChangesListUrl) {
   struct TestPattern {
     bool include_deleted;
     int max_results;
     const std::string page_token;
     int64_t start_change_id;
     const std::string expected_query;
   };
   const TestPattern kTestPatterns[] = {
     { true, 100, "", 0, "" },
@@ skipping 245 matching lines @@
             team_drives_url_generator_.GetTeamDriveListUrl(10, "").spec());
   EXPECT_EQ("https://www.example.com/drive/v2/teamdrives?maxResults=100",
             team_drives_url_generator_.GetTeamDriveListUrl(100, "").spec());
   EXPECT_EQ(
       "https://www.example.com/drive/v2/"
       "teamdrives?maxResults=100&pageToken=theToken",
       team_drives_url_generator_.GetTeamDriveListUrl(100, "theToken").spec());
 }
 
 }  // namespace google_apis