Added unit tests for TableMetadataReviseEngine (#28535)

infra/common/src/test/java/org/apache/shardingsphere/infra/metadata/database/schema/reviser/table/TableMetadataReviseEngineTest.java

@@ -0,0 +1,85 @@
+/*
+ * 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.infra.metadata.database.schema.reviser.table;
+
+import org.apache.shardingsphere.infra.database.core.metadata.data.model.ColumnMetaData;
+import org.apache.shardingsphere.infra.database.core.metadata.data.model.IndexMetaData;
+import org.apache.shardingsphere.infra.database.core.metadata.data.model.TableMetaData;
+import org.apache.shardingsphere.infra.database.core.type.DatabaseType;
+import org.apache.shardingsphere.infra.metadata.database.schema.reviser.MetaDataReviseEntry;
+import org.apache.shardingsphere.infra.rule.ShardingSphereRule;
+
+import org.apache.shardingsphere.test.mock.AutoMockExtension;
+import org.apache.shardingsphere.test.mock.StaticMockSettings;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoSettings;
+import org.mockito.quality.Strictness;
+
+import javax.sql.DataSource;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Optional;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(AutoMockExtension.class)
+@StaticMockSettings(TableMetaDataReviseEngine.class)
+@MockitoSettings(strictness = Strictness.LENIENT)
+class TableMetadataReviseEngineTest<T extends ShardingSphereRule> {
+
+    private final T mockRule = (T) mock(ShardingSphereRule.class);
+
+    private final DatabaseType databaseType = mock(DatabaseType.class);
+
+    private final DataSource dataSource = mock(DataSource.class);
+
+    private final MetaDataReviseEntry metaDataReviseEntry = mock(MetaDataReviseEntry.class);
+
+    @Test
+    void assertGetRevisedTableName() {
+        TableNameReviser tableNameReviser = mock(TableNameReviser.class);
+        TableMetaData originalMetaData = new TableMetaData("originalTableName", new ArrayList<>(), null, null);
+        TableMetaDataReviseEngine<T> tableMetaDataReviseEngine = new TableMetaDataReviseEngine<T>(mockRule, databaseType, dataSource, metaDataReviseEntry);
+        doReturn(Optional.of(tableNameReviser)).when(metaDataReviseEntry).getTableNameReviser();
+        when(tableNameReviser.revise(anyString(), eq(mockRule))).thenReturn("revisedTableName");
+        TableMetaData revisedMetaData = tableMetaDataReviseEngine.revise(originalMetaData);
+        assertThat(revisedMetaData.getName(), is("revisedTableName"));
+    }
+
+    @Test
+    void assertGetOriginalTableName() {
+        Collection<ColumnMetaData> columns = new ArrayList<>();
+        columns.add(new ColumnMetaData("column1", 2, true, true, true, false, false, false));
+        Collection<IndexMetaData> indexes = new ArrayList<>();
+        indexes.add(new IndexMetaData("index1"));
+        TableMetaData tableMetaData = new TableMetaData("originalTableName", columns, indexes, null);
+        TableMetaDataReviseEngine<T> tableMetaDataReviseEngine = new TableMetaDataReviseEngine<T>(mockRule, databaseType, dataSource, metaDataReviseEntry);
+        when(metaDataReviseEntry.getTableNameReviser()).thenReturn(Optional.empty());
+        TableMetaData revisedMetaData = tableMetaDataReviseEngine.revise(tableMetaData);
+        assertThat(revisedMetaData.getName(), is("originalTableName"));
+    }
+}