Add a testing method to set the clock step used by TimeUtil

Change-Id: Ia6e642474c97e5217a6c5de01db41c8d24ba5d51

8 files changed, 106 insertions, 96 deletions

diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/edit/ChangeEditIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/edit/ChangeEditIT.java
index 4cd11d16ea..815ea3f988 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/edit/ChangeEditIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/edit/ChangeEditIT.java
@@ -17,7 +17,6 @@ package com.google.gerrit.acceptance.edit;
 import static com.google.common.collect.Iterables.getOnlyElement;
 import static com.google.common.truth.Truth.assertThat;
 import static java.nio.charset.StandardCharsets.UTF_8;
-import static java.util.concurrent.TimeUnit.MILLISECONDS;
 import static java.util.concurrent.TimeUnit.SECONDS;
 import static org.apache.http.HttpStatus.SC_CONFLICT;
 import static org.apache.http.HttpStatus.SC_FORBIDDEN;
@@ -58,6 +57,7 @@ import com.google.gerrit.server.edit.UnchangedCommitMessageException;
 import com.google.gerrit.server.git.ProjectConfig;
 import com.google.gerrit.server.project.InvalidChangeOperationException;
 import com.google.gerrit.server.project.Util;
+import com.google.gerrit.testutil.TestTimeUtil;
 import com.google.gson.stream.JsonReader;
 import com.google.gwtorm.server.SchemaFactory;
 import com.google.inject.Inject;
@@ -66,9 +66,6 @@ import org.apache.commons.codec.binary.StringUtils;
 import org.eclipse.jgit.lib.ObjectId;
 import org.eclipse.jgit.lib.PersonIdent;
 import org.eclipse.jgit.lib.RefUpdate;
-import org.joda.time.DateTime;
-import org.joda.time.DateTimeUtils;
-import org.joda.time.DateTimeUtils.MillisProvider;
 import org.junit.After;
 import org.junit.AfterClass;
 import org.junit.Before;
@@ -81,7 +78,6 @@ import java.util.ArrayList;
 import java.util.Date;
 import java.util.Iterator;
 import java.util.List;
-import java.util.concurrent.atomic.AtomicLong;
 
 public class ChangeEditIT extends AbstractDaemonTest {
 
@@ -114,20 +110,12 @@ public class ChangeEditIT extends AbstractDaemonTest {
 
   @BeforeClass
   public static void setTimeForTesting() {
-    final long clockStepMs = MILLISECONDS.convert(1, SECONDS);
-    final AtomicLong clockMs = new AtomicLong(
-        new DateTime(2009, 9, 30, 17, 0, 0).getMillis());
-    DateTimeUtils.setCurrentMillisProvider(new MillisProvider() {
-      @Override
-      public long getMillis() {
-        return clockMs.getAndAdd(clockStepMs);
-      }
-    });
+    TestTimeUtil.resetWithClockStep(1, SECONDS);
   }
 
   @AfterClass
   public static void restoreTime() {
-    DateTimeUtils.setCurrentMillisSystem();
+    TestTimeUtil.useSystemTime();
   }
 
   @Before
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/AbstractPushForReview.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/AbstractPushForReview.java
index 86e7ae185a..3f36a2df7e 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/AbstractPushForReview.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/AbstractPushForReview.java
@@ -17,7 +17,6 @@ package com.google.gerrit.acceptance.git;
 import static com.google.common.truth.Truth.assertThat;
 import static com.google.common.truth.TruthJUnit.assume;
 import static com.google.gerrit.acceptance.GitUtil.pushHead;
-import static java.util.concurrent.TimeUnit.MILLISECONDS;
 import static java.util.concurrent.TimeUnit.SECONDS;
 
 import com.google.common.collect.ImmutableSet;
@@ -33,12 +32,10 @@ import com.google.gerrit.extensions.common.ChangeInfo;
 import com.google.gerrit.extensions.common.EditInfo;
 import com.google.gerrit.extensions.common.LabelInfo;
 import com.google.gerrit.reviewdb.client.Change;
+import com.google.gerrit.testutil.TestTimeUtil;
 
 import org.eclipse.jgit.revwalk.RevCommit;
 import org.eclipse.jgit.transport.PushResult;
-import org.joda.time.DateTime;
-import org.joda.time.DateTimeUtils;
-import org.joda.time.DateTimeUtils.MillisProvider;
 import org.junit.AfterClass;
 import org.junit.Before;
 import org.junit.BeforeClass;
@@ -46,7 +43,6 @@ import org.junit.Test;
 
 import java.util.List;
 import java.util.Set;
-import java.util.concurrent.atomic.AtomicLong;
 
 public abstract class AbstractPushForReview extends AbstractDaemonTest {
   protected enum Protocol {
@@ -58,20 +54,12 @@ public abstract class AbstractPushForReview extends AbstractDaemonTest {
 
   @BeforeClass
   public static void setTimeForTesting() {
-    final long clockStepMs = MILLISECONDS.convert(1, SECONDS);
-    final AtomicLong clockMs = new AtomicLong(
-        new DateTime(2009, 9, 30, 17, 0, 0).getMillis());
-    DateTimeUtils.setCurrentMillisProvider(new MillisProvider() {
-      @Override
-      public long getMillis() {
-        return clockMs.getAndAdd(clockStepMs);
-      }
-    });
+    TestTimeUtil.resetWithClockStep(1, SECONDS);
   }
 
   @AfterClass
   public static void restoreTime() {
-    DateTimeUtils.setCurrentMillisSystem();
+    TestTimeUtil.useSystemTime();
   }
 
   @Before
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/ChangeMessagesIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/ChangeMessagesIT.java
index d726d70828..91f2962360 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/ChangeMessagesIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/ChangeMessagesIT.java
@@ -15,7 +15,6 @@
 package com.google.gerrit.acceptance.rest.change;
 
 import static com.google.common.truth.Truth.assertThat;
-import static java.util.concurrent.TimeUnit.MILLISECONDS;
 import static java.util.concurrent.TimeUnit.SECONDS;
 
 import com.google.gerrit.acceptance.AbstractDaemonTest;
@@ -23,41 +22,28 @@ import com.google.gerrit.extensions.api.changes.ReviewInput;
 import com.google.gerrit.extensions.common.ChangeInfo;
 import com.google.gerrit.extensions.common.ChangeMessageInfo;
 import com.google.gerrit.testutil.ConfigSuite;
+import com.google.gerrit.testutil.TestTimeUtil;
 
-import org.joda.time.DateTime;
-import org.joda.time.DateTimeUtils;
-import org.joda.time.DateTimeUtils.MillisProvider;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
 import java.util.Iterator;
-import java.util.concurrent.atomic.AtomicLong;
 
 @RunWith(ConfigSuite.class)
 public class ChangeMessagesIT extends AbstractDaemonTest {
   private String systemTimeZone;
-  private volatile long clockStepMs;
 
   @Before
   public void setTimeForTesting() {
     systemTimeZone = System.setProperty("user.timezone", "US/Eastern");
-    clockStepMs = MILLISECONDS.convert(1, SECONDS);
-    final AtomicLong clockMs = new AtomicLong(
-        new DateTime(2009, 9, 30, 17, 0, 0).getMillis());
-
-    DateTimeUtils.setCurrentMillisProvider(new MillisProvider() {
-      @Override
-      public long getMillis() {
-        return clockMs.getAndAdd(clockStepMs);
-      }
-    });
+    TestTimeUtil.resetWithClockStep(1, SECONDS);
   }
 
   @After
   public void resetTime() {
-    DateTimeUtils.setCurrentMillisSystem();
+    TestTimeUtil.useSystemTime();
     System.setProperty("user.timezone", systemTimeZone);
   }
 
diff --git a/gerrit-server/BUCK b/gerrit-server/BUCK
index c264779c6a..e3b05915d8 100644
--- a/gerrit-server/BUCK
+++ b/gerrit-server/BUCK
@@ -97,6 +97,7 @@ TESTUTIL_DEPS = [
   '//lib/guice:guice-servlet',
   '//lib/jgit:jgit',
   '//lib/jgit:junit',
+  '//lib/joda:joda-time',
   '//lib/log:api',
   '//lib/log:impl_log4j',
   '//lib/log:log4j',
@@ -173,7 +174,6 @@ java_test(
     '//gerrit-common:annotations',
     '//gerrit-server/src/main/prolog:common',
     '//lib/antlr:java_runtime',
-    '//lib/joda:joda-time',
   ],
   source_under_test = [':server'],
 )
@@ -194,7 +194,6 @@ java_test(
     '//lib:grappa',
     '//lib:guava',
     '//lib/guice:guice-assistedinject',
-    '//lib/joda:joda-time',
     '//lib/prolog:runtime',
   ],
   source_under_test = [':server'],
diff --git a/gerrit-server/src/test/java/com/google/gerrit/server/notedb/AbstractChangeNotesTest.java b/gerrit-server/src/test/java/com/google/gerrit/server/notedb/AbstractChangeNotesTest.java
index 8030f9f967..cbd8ff55f2 100644
--- a/gerrit-server/src/test/java/com/google/gerrit/server/notedb/AbstractChangeNotesTest.java
+++ b/gerrit-server/src/test/java/com/google/gerrit/server/notedb/AbstractChangeNotesTest.java
@@ -15,7 +15,6 @@
 package com.google.gerrit.server.notedb;
 
 import static com.google.inject.Scopes.SINGLETON;
-import static java.util.concurrent.TimeUnit.MILLISECONDS;
 import static java.util.concurrent.TimeUnit.SECONDS;
 
 import com.google.common.collect.ImmutableList;
@@ -51,6 +50,7 @@ import com.google.gerrit.server.project.ProjectCache;
 import com.google.gerrit.testutil.FakeAccountCache;
 import com.google.gerrit.testutil.InMemoryRepositoryManager;
 import com.google.gerrit.testutil.TestChanges;
+import com.google.gerrit.testutil.TestTimeUtil;
 import com.google.gwtorm.client.KeyUtil;
 import com.google.gwtorm.server.OrmException;
 import com.google.gwtorm.server.StandardKeyEncoder;
@@ -62,15 +62,11 @@ import com.google.inject.util.Providers;
 import org.eclipse.jgit.internal.storage.dfs.InMemoryRepository;
 import org.eclipse.jgit.lib.Config;
 import org.eclipse.jgit.lib.PersonIdent;
-import org.joda.time.DateTime;
-import org.joda.time.DateTimeUtils;
-import org.joda.time.DateTimeUtils.MillisProvider;
 import org.junit.After;
 import org.junit.Before;
 
 import java.sql.Timestamp;
 import java.util.TimeZone;
-import java.util.concurrent.atomic.AtomicLong;
 
 public class AbstractChangeNotesTest {
   private static final TimeZone TZ =
@@ -91,7 +87,6 @@ public class AbstractChangeNotesTest {
 
   private Injector injector;
   private String systemTimeZone;
-  private volatile long clockStepMs;
 
   @Inject private AllUsersNameProvider allUsers;
 
@@ -151,21 +146,12 @@ public class AbstractChangeNotesTest {
 
   private void setTimeForTesting() {
     systemTimeZone = System.setProperty("user.timezone", "US/Eastern");
-    clockStepMs = MILLISECONDS.convert(1, SECONDS);
-    final AtomicLong clockMs = new AtomicLong(
-        new DateTime(2009, 9, 30, 17, 0, 0).getMillis());
-
-    DateTimeUtils.setCurrentMillisProvider(new MillisProvider() {
-      @Override
-      public long getMillis() {
-        return clockMs.getAndAdd(clockStepMs);
-      }
-    });
+    TestTimeUtil.resetWithClockStep(1, SECONDS);
   }
 
   @After
   public void resetTime() {
-    DateTimeUtils.setCurrentMillisSystem();
+    TestTimeUtil.useSystemTime();
     System.setProperty("user.timezone", systemTimeZone);
   }
 
diff --git a/gerrit-server/src/test/java/com/google/gerrit/server/query/change/AbstractQueryChangesTest.java b/gerrit-server/src/test/java/com/google/gerrit/server/query/change/AbstractQueryChangesTest.java
index 3b053702e3..1d7a1ae598 100644
--- a/gerrit-server/src/test/java/com/google/gerrit/server/query/change/AbstractQueryChangesTest.java
+++ b/gerrit-server/src/test/java/com/google/gerrit/server/query/change/AbstractQueryChangesTest.java
@@ -71,6 +71,7 @@ import com.google.gerrit.testutil.DisabledReviewDb;
 import com.google.gerrit.testutil.InMemoryDatabase;
 import com.google.gerrit.testutil.InMemoryRepositoryManager;
 import com.google.gerrit.testutil.InMemoryRepositoryManager.Repo;
+import com.google.gerrit.testutil.TestTimeUtil;
 import com.google.inject.Inject;
 import com.google.inject.Injector;
 import com.google.inject.Provider;
@@ -80,9 +81,6 @@ import org.eclipse.jgit.junit.TestRepository;
 import org.eclipse.jgit.lib.Config;
 import org.eclipse.jgit.lib.ObjectInserter;
 import org.eclipse.jgit.revwalk.RevCommit;
-import org.joda.time.DateTime;
-import org.joda.time.DateTimeUtils;
-import org.joda.time.DateTimeUtils.MillisProvider;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Ignore;
@@ -96,7 +94,6 @@ import java.util.Arrays;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.concurrent.atomic.AtomicLong;
 
 @Ignore
 @RunWith(ConfigSuite.class)
@@ -144,7 +141,6 @@ public abstract class AbstractQueryChangesTest {
   protected ReviewDb db;
   protected Account.Id userId;
   protected CurrentUser user;
-  protected volatile long clockStepMs;
 
   private String systemTimeZone;
 
@@ -200,21 +196,12 @@ public abstract class AbstractQueryChangesTest {
   @Before
   public void setTimeForTesting() {
     systemTimeZone = System.setProperty("user.timezone", "US/Eastern");
-    clockStepMs = 1;
-    final AtomicLong clockMs = new AtomicLong(
-        new DateTime(2009, 9, 30, 17, 0, 0).getMillis());
-
-    DateTimeUtils.setCurrentMillisProvider(new MillisProvider() {
-      @Override
-      public long getMillis() {
-        return clockMs.getAndAdd(clockStepMs);
-      }
-    });
+    TestTimeUtil.resetWithClockStep(1, MILLISECONDS);
   }
 
   @After
   public void resetTime() {
-    DateTimeUtils.setCurrentMillisSystem();
+    TestTimeUtil.useSystemTime();
     System.setProperty("user.timezone", systemTimeZone);
   }
 
@@ -791,7 +778,7 @@ public abstract class AbstractQueryChangesTest {
 
   @Test
   public void updateOrder() throws Exception {
-    clockStepMs = MILLISECONDS.convert(2, MINUTES);
+    TestTimeUtil.resetWithClockStep(2, MINUTES);
     TestRepository<Repo> repo = createProject("repo");
     List<ChangeInserter> inserters = Lists.newArrayList();
     List<Change> changes = Lists.newArrayList();
@@ -816,7 +803,7 @@ public abstract class AbstractQueryChangesTest {
 
   @Test
   public void updatedOrderWithMinuteResolution() throws Exception {
-    clockStepMs = MILLISECONDS.convert(2, MINUTES);
+    TestTimeUtil.resetWithClockStep(2, MINUTES);
     TestRepository<Repo> repo = createProject("repo");
     ChangeInserter ins1 = newChange(repo, null, null, null, null);
     Change change1 = insert(ins1);
@@ -970,16 +957,17 @@ public abstract class AbstractQueryChangesTest {
 
   @Test
   public void byAge() throws Exception {
-    long thirtyHours = MILLISECONDS.convert(30, HOURS);
-    clockStepMs = thirtyHours;
+    long thirtyHoursInMs = MILLISECONDS.convert(30, HOURS);
+    TestTimeUtil.resetWithClockStep(thirtyHoursInMs, MILLISECONDS);
     TestRepository<Repo> repo = createProject("repo");
     Change change1 = insert(newChange(repo, null, null, null, null));
     Change change2 = insert(newChange(repo, null, null, null, null));
-    clockStepMs = 0; // Queried by AgePredicate constructor.
+    // Queried by AgePredicate constructor.
+    TestTimeUtil.setClockStep(0, MILLISECONDS);
     long now = TimeUtil.nowMs();
     assertThat(lastUpdatedMs(change2) - lastUpdatedMs(change1))
-        .isEqualTo(thirtyHours);
-    assertThat(now - lastUpdatedMs(change2)).isEqualTo(thirtyHours);
+        .isEqualTo(thirtyHoursInMs);
+    assertThat(now - lastUpdatedMs(change2)).isEqualTo(thirtyHoursInMs);
     assertThat(TimeUtil.nowMs()).isEqualTo(now);
 
     assertQuery("-age:1d");
@@ -993,11 +981,11 @@ public abstract class AbstractQueryChangesTest {
 
   @Test
   public void byBefore() throws Exception {
-    clockStepMs = MILLISECONDS.convert(30, HOURS);
+    TestTimeUtil.resetWithClockStep(30, HOURS);
     TestRepository<Repo> repo = createProject("repo");
     Change change1 = insert(newChange(repo, null, null, null, null));
     Change change2 = insert(newChange(repo, null, null, null, null));
-    clockStepMs = 0;
+    TestTimeUtil.setClockStep(0, MILLISECONDS);
 
     assertQuery("before:2009-09-29");
     assertQuery("before:2009-09-30");
@@ -1013,11 +1001,11 @@ public abstract class AbstractQueryChangesTest {
 
   @Test
   public void byAfter() throws Exception {
-    clockStepMs = MILLISECONDS.convert(30, HOURS);
+    TestTimeUtil.resetWithClockStep(30, HOURS);
     TestRepository<Repo> repo = createProject("repo");
     Change change1 = insert(newChange(repo, null, null, null, null));
     Change change2 = insert(newChange(repo, null, null, null, null));
-    clockStepMs = 0;
+    TestTimeUtil.setClockStep(0, MILLISECONDS);
 
     assertQuery("after:2009-10-03");
     assertQuery("after:\"2009-10-01 20:59:59 -0400\"", change2);
@@ -1292,7 +1280,7 @@ public abstract class AbstractQueryChangesTest {
 
   @Test
   public void reviewedBy() throws Exception {
-    clockStepMs = MILLISECONDS.convert(2, MINUTES);
+    TestTimeUtil.resetWithClockStep(2, MINUTES);
     TestRepository<Repo> repo = createProject("repo");
     Change change1 = insert(newChange(repo, null, null, null, null));
     Change change2 = insert(newChange(repo, null, null, null, null));
diff --git a/gerrit-server/src/test/java/com/google/gerrit/server/query/change/LuceneQueryChangesV14Test.java b/gerrit-server/src/test/java/com/google/gerrit/server/query/change/LuceneQueryChangesV14Test.java
index 7e7899b50c..8b22ff594c 100644
--- a/gerrit-server/src/test/java/com/google/gerrit/server/query/change/LuceneQueryChangesV14Test.java
+++ b/gerrit-server/src/test/java/com/google/gerrit/server/query/change/LuceneQueryChangesV14Test.java
@@ -15,7 +15,6 @@
 package com.google.gerrit.server.query.change;
 
 import static com.google.common.truth.Truth.assertThat;
-import static java.util.concurrent.TimeUnit.MILLISECONDS;
 import static java.util.concurrent.TimeUnit.MINUTES;
 
 import com.google.gerrit.extensions.api.changes.ReviewInput;
@@ -25,6 +24,7 @@ import com.google.gerrit.reviewdb.client.PatchSet;
 import com.google.gerrit.server.account.AuthRequest;
 import com.google.gerrit.testutil.InMemoryModule;
 import com.google.gerrit.testutil.InMemoryRepositoryManager.Repo;
+import com.google.gerrit.testutil.TestTimeUtil;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
@@ -80,7 +80,7 @@ public class LuceneQueryChangesV14Test extends LuceneQueryChangesTest {
 
   @Test
   public void isReviewed() throws Exception {
-    clockStepMs = MILLISECONDS.convert(2, MINUTES);
+    TestTimeUtil.resetWithClockStep(2, MINUTES);
     TestRepository<Repo> repo = createProject("repo");
     Change change1 = insert(newChange(repo, null, null, null, null));
     Change change2 = insert(newChange(repo, null, null, null, null));
diff --git a/gerrit-server/src/test/java/com/google/gerrit/testutil/TestTimeUtil.java b/gerrit-server/src/test/java/com/google/gerrit/testutil/TestTimeUtil.java
new file mode 100644
index 0000000000..4c71c573fc
--- /dev/null
+++ b/gerrit-server/src/test/java/com/google/gerrit/testutil/TestTimeUtil.java
@@ -0,0 +1,75 @@
+// Copyright (C) 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.testutil;
+
+import static com.google.common.base.Preconditions.checkState;
+import static java.util.concurrent.TimeUnit.MILLISECONDS;
+
+import org.joda.time.DateTime;
+import org.joda.time.DateTimeUtils;
+import org.joda.time.DateTimeUtils.MillisProvider;
+import org.joda.time.DateTimeZone;
+
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicLong;
+
+/** Static utility methods for dealing with dates and times in tests. */
+public class TestTimeUtil {
+  private static Long clockStepMs;
+  private static AtomicLong clockMs;
+
+  /**
+   * Reset the clock to a known start point, then set the clock step.
+   * <p>
+   * The clock is initially set to 2009/09/30 17:00:00 -0400.
+   *
+   * @param clockStep amount to increment clock by on each lookup.
+   * @param clockStepUnit time unit for {@code clockStep}.
+   */
+  public static synchronized void resetWithClockStep(
+      long clockStep, TimeUnit clockStepUnit) {
+    // Set an arbitrary start point so tests are more repeatable.
+    clockMs = new AtomicLong(
+        new DateTime(2009, 9, 30, 17, 0, 0, DateTimeZone.forOffsetHours(-4))
+            .getMillis());
+    setClockStep(clockStep, clockStepUnit);
+  }
+
+  /**
+   * Set the clock step used by {@link com.google.gerrit.common.TimeUtil}.
+   *
+   * @param clockStep amount to increment clock by on each lookup.
+   * @param clockStepUnit time unit for {@code clockStep}.
+   */
+  public static synchronized void setClockStep(
+      long clockStep, TimeUnit clockStepUnit) {
+    checkState(clockMs != null, "call resetWithClockStep first");
+    clockStepMs = MILLISECONDS.convert(clockStep, clockStepUnit);
+    DateTimeUtils.setCurrentMillisProvider(new MillisProvider() {
+      @Override
+      public long getMillis() {
+        return clockMs.getAndAdd(clockStepMs);
+      }
+    });
+  }
+
+  /** Reset the clock to use the actual system clock. */
+  public static synchronized void useSystemTime() {
+    DateTimeUtils.setCurrentMillisSystem();
+  }
+
+  private TestTimeUtil() {
+  }
+}