Report Precache.TimeSinceLastPrecache

components/precache/core/precache_session_table_unittest.cc

Index: components/precache/core/precache_session_table_unittest.cc
diff --git a/components/precache/core/precache_session_table_unittest.cc b/components/precache/core/precache_session_table_unittest.cc
index c0d37d502730e7523d430121f2d58e97e72e934b..c15030127934604cdad63c2f46d0a27b29e02bf2 100644
--- a/components/precache/core/precache_session_table_unittest.cc
+++ b/components/precache/core/precache_session_table_unittest.cc
@@ -31,6 +31,18 @@ class PrecacheSessionTableTest : public testing::Test {
   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());