Report Precache.TimeSinceLastPrecache

components/precache/core/precache_session_table_unittest.cc

 // Copyright 2016 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/compiler_specific.h"
 #include "base/time/time.h"
 #include "components/precache/core/precache_session_table.h"
 #include "components/precache/core/proto/unfinished_work.pb.h"
 #include "sql/connection.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 13 matching lines @@
     precache_session_table_.reset(new PrecacheSessionTable());
     db_.reset(new sql::Connection());
     ASSERT_TRUE(db_->OpenInMemory());
     precache_session_table_->Init(db_.get());
   }
 
   std::unique_ptr<PrecacheSessionTable> precache_session_table_;
   std::unique_ptr<sql::Connection> db_;
 };
 
+TEST_F(PrecacheSessionTableTest, LastPrecacheTimestamp) {
+  const base::Time sometime = base::Time::FromDoubleT(42);
+
+  precache_session_table_->SetLastPrecacheTimestamp(sometime);
+
+  EXPECT_EQ(sometime, precache_session_table_->GetLastPrecacheTimestamp());
+
+  precache_session_table_->DeleteLastPrecacheTimestamp();
+
+  EXPECT_EQ(base::Time(), precache_session_table_->GetLastPrecacheTimestamp());
+}
+
 TEST_F(PrecacheSessionTableTest, SaveAndGetUnfinishedWork) {
   std::unique_ptr<PrecacheUnfinishedWork> unfinished_work(
       new PrecacheUnfinishedWork());
   unfinished_work->add_top_host()->set_hostname("foo.com");
   unfinished_work->add_top_host()->set_hostname("bar.com");
   auto s = unfinished_work->mutable_config_settings();
   s->set_top_sites_count(11);
   s->add_forced_site("baz.com");
   s->set_top_resources_count(12);
   s->set_max_bytes_per_resource(501);
@@ skipping 97 matching lines @@
 
   std::unique_ptr<PrecacheUnfinishedWork> unfinished_work2 =
       precache_session_table_->GetUnfinishedWork();
 
   EXPECT_EQ(0, unfinished_work2->manifest_size());
 }
 
 }  // namespace
 
 }  // namespace precache