add test case for MasterSlaveRuleAlgorithmProviderConfigurationYamlSwapper (#6891)

* add test case for MasterSlaveRuleAlgorithmProviderConfigurationYamlSwapper

* refactor MasterSlaveRuleAlgorithmProviderConfigurationYamlSwapperTest

shardingsphere-features/shardingsphere-master-slave/shardingsphere-master-slave-common/src/test/java/org/apache/shardingsphere/masterslave/yaml/swapper/MasterSlaveRuleAlgorithmProviderConfigurationYamlSwapperTest.java

+/*
+ * 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.masterslave.yaml.swapper;
+
+import com.google.common.collect.ImmutableMap;
+import org.apache.shardingsphere.masterslave.algorithm.RandomMasterSlaveLoadBalanceAlgorithm;
+import org.apache.shardingsphere.masterslave.algorithm.config.AlgorithmProvidedMasterSlaveRuleConfiguration;
+import org.apache.shardingsphere.masterslave.api.config.rule.MasterSlaveDataSourceRuleConfiguration;
+import org.apache.shardingsphere.masterslave.constant.MasterSlaveOrder;
+import org.apache.shardingsphere.masterslave.yaml.config.YamlMasterSlaveRuleConfiguration;
+import org.junit.Test;
+
+import java.util.Collections;
+import java.util.LinkedHashMap;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+
+public final class MasterSlaveRuleAlgorithmProviderConfigurationYamlSwapperTest {
+    
+    private final MasterSlaveRuleAlgorithmProviderConfigurationYamlSwapper swapper = new MasterSlaveRuleAlgorithmProviderConfigurationYamlSwapper();
+    
+    @Test
+    public void assertSwapToYamlConfiguration() {
+        YamlMasterSlaveRuleConfiguration actual = createYamlMasterSlaveRuleConfiguration();
+        assertNotNull(actual);
+        assertNotNull(actual.getDataSources());
+        assertThat(actual.getDataSources().keySet(), is(Collections.singleton("name")));
+        assertThat(actual.getDataSources().get("name").getName(), is("name"));
+        assertThat(actual.getDataSources().get("name").getMasterDataSourceName(), is("masterDataSourceName"));
+        assertThat(actual.getDataSources().get("name").getLoadBalancerName(), is("loadBalancerName"));
+        assertThat(actual.getDataSources().get("name").getSlaveDataSourceNames(), is(Collections.singletonList("slaveDataSourceName")));
+        assertNotNull(actual.getLoadBalancers());
+        assertThat(actual.getLoadBalancers().keySet(), is(Collections.singleton("name")));
+        assertNotNull(actual.getLoadBalancers().get("name"));
+        assertThat(actual.getLoadBalancers().get("name").getType(), is("RANDOM"));
+    }
+    
+    @Test
+    public void assertSwapToObject() {
+        AlgorithmProvidedMasterSlaveRuleConfiguration actual = swapper.swapToObject(createYamlMasterSlaveRuleConfiguration());
+        assertNotNull(actual);
+        assertNotNull(actual.getDataSources());
+        assertTrue(actual.getDataSources().iterator().hasNext());
+        MasterSlaveDataSourceRuleConfiguration ruleConfiguration = actual.getDataSources().iterator().next();
+        assertNotNull(ruleConfiguration);
+        assertThat(ruleConfiguration.getName(), is("name"));
+        assertThat(ruleConfiguration.getMasterDataSourceName(), is("masterDataSourceName"));
+        assertThat(ruleConfiguration.getLoadBalancerName(), is("loadBalancerName"));
+        assertThat(ruleConfiguration.getSlaveDataSourceNames(), is(Collections.singletonList("slaveDataSourceName")));
+        assertThat(actual.getLoadBalanceAlgorithms(), is(new LinkedHashMap<>()));
+    }
+    
+    @Test
+    public void assertGetTypeClass() {
+        assertThat(swapper.getTypeClass(), equalTo(AlgorithmProvidedMasterSlaveRuleConfiguration.class));
+    }
+    
+    @Test
+    public void assertGetRuleTagName() {
+        assertThat(swapper.getRuleTagName(), is("MASTER_SLAVE"));
+    }
+    
+    @Test
+    public void assertGetOrder() {
+        assertThat(swapper.getOrder(), is(MasterSlaveOrder.ALGORITHM_PROVIDER_MASTER_SLAVE_ORDER));
+    }
+    
+    private YamlMasterSlaveRuleConfiguration createYamlMasterSlaveRuleConfiguration() {
+        MasterSlaveDataSourceRuleConfiguration ruleConfiguration = new MasterSlaveDataSourceRuleConfiguration("name", "masterDataSourceName",
+                Collections.singletonList("slaveDataSourceName"), "loadBalancerName");
+        YamlMasterSlaveRuleConfiguration result = swapper.swapToYamlConfiguration(
+                new AlgorithmProvidedMasterSlaveRuleConfiguration(Collections.singletonList(ruleConfiguration), ImmutableMap.of("name", new RandomMasterSlaveLoadBalanceAlgorithm())));
+        return result;
+    }
+}