Add test cases on GlobalClockRule

kernel/global-clock/core/src/test/java/org/apache/shardingsphere/globalclock/fixture/FixtureGlobalClockProvider.java

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.shardingsphere.globalclock.fixture;
+
+import org.apache.shardingsphere.globalclock.provider.GlobalClockProvider;
+
+public final class FixtureGlobalClockProvider implements GlobalClockProvider {
+
+    @Override
+    public long getCurrentTimestamp() {
+        return 0;
+    }
+
+    @Override
+    public long getNextTimestamp() {
+        return 0;
+    }
+
+    @Override
+    public Object getType() {
+        return "FIXTURE.FIXTURE";
+    }
+}

kernel/global-clock/core/src/test/java/org/apache/shardingsphere/globalclock/rule/GlobalClockRuleTest.java

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.shardingsphere.globalclock.rule;
+
+import org.apache.shardingsphere.globalclock.config.GlobalClockRuleConfiguration;
+import org.junit.jupiter.api.Test;
+
+import java.util.Properties;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class GlobalClockRuleTest {
+
+    @Test
+    void assertGetGlobalClockProviderWhenDisabled() {
+        assertFalse(new GlobalClockRule(new GlobalClockRuleConfiguration("FIXTURE", "FIXTURE", false, new Properties())).getGlobalClockProvider().isPresent());
+    }
+
+    @Test
+    void assertGetGlobalClockProviderWhenEnabled() {
+        assertTrue(new GlobalClockRule(new GlobalClockRuleConfiguration("FIXTURE", "FIXTURE", true, new Properties())).getGlobalClockProvider().isPresent());
+    }
+}

kernel/global-clock/core/src/test/resources/META-INF/services/org.apache.shardingsphere.globalclock.provider.GlobalClockProvider

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+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+#
+
+org.apache.shardingsphere.globalclock.fixture.FixtureGlobalClockProvider