diff --git a/infra/common/src/test/java/org/apache/shardingsphere/infra/metadata/database/ShardingSphereDatabaseTest.java b/infra/common/src/test/java/org/apache/shardingsphere/infra/metadata/database/ShardingSphereDatabaseTest.java
index ccc5c9a84a065..fa3de5059d2d4 100644
--- a/infra/common/src/test/java/org/apache/shardingsphere/infra/metadata/database/ShardingSphereDatabaseTest.java
+++ b/infra/common/src/test/java/org/apache/shardingsphere/infra/metadata/database/ShardingSphereDatabaseTest.java
@@ -23,6 +23,7 @@
 import org.apache.shardingsphere.infra.instance.InstanceContext;
 import org.apache.shardingsphere.infra.metadata.database.resource.ResourceMetaData;
 import org.apache.shardingsphere.infra.metadata.database.rule.RuleMetaData;
+import org.apache.shardingsphere.infra.metadata.database.schema.model.ShardingSphereSchema;
 import org.apache.shardingsphere.infra.rule.ShardingSphereRule;
 import org.apache.shardingsphere.infra.rule.identifier.type.DataSourceContainedRule;
 import org.apache.shardingsphere.infra.rule.identifier.type.MutableDataNodeRule;
@@ -31,6 +32,7 @@
 import org.apache.shardingsphere.test.fixture.jdbc.MockedDataSource;
 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;
@@ -40,12 +42,15 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.LinkedList;
+import java.util.HashMap;
+import java.util.Map;
 import java.util.Properties;
 
 import static org.hamcrest.CoreMatchers.is;
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.Mockito.RETURNS_DEEP_STUBS;
 import static org.mockito.Mockito.mock;
@@ -55,6 +60,57 @@
 @MockitoSettings(strictness = Strictness.LENIENT)
 class ShardingSphereDatabaseTest {
     
+    @Test
+    void assertContainsSchema() {
+        DatabaseType databaseType = mock(DatabaseType.class);
+        RuleMetaData ruleMetaData = mock(RuleMetaData.class);
+        Map<String, ShardingSphereSchema> schemas = new HashMap<>();
+        ShardingSphereSchema schema = mock(ShardingSphereSchema.class);
+        schemas.put("schema1", schema);
+        ShardingSphereDatabase database = new ShardingSphereDatabase("foo_db", databaseType, mock(ResourceMetaData.class), ruleMetaData, schemas);
+        assertTrue(database.containsSchema("schema1"));
+        assertFalse(database.containsSchema("non_existent_schema"));
+    }
+    
+    @Test
+    void assertGetSchema() {
+        DatabaseType databaseType = mock(DatabaseType.class);
+        RuleMetaData ruleMetaData = mock(RuleMetaData.class);
+        Map<String, ShardingSphereSchema> schemas = new HashMap<>();
+        ShardingSphereSchema schema = mock(ShardingSphereSchema.class);
+        schemas.put("schema1", schema);
+        ShardingSphereDatabase database = new ShardingSphereDatabase("foo_db", databaseType, mock(ResourceMetaData.class), ruleMetaData, schemas);
+        assertThat(database.getSchema("schema1"), is(schema));
+        assertNull(database.getSchema("non_existent_schema"));
+    }
+    
+    @Test
+    void assertAddSchema() {
+        DatabaseType databaseType = mock(DatabaseType.class);
+        RuleMetaData ruleMetaData = mock(RuleMetaData.class);
+        Map<String, ShardingSphereSchema> schemas = new HashMap<>();
+        ShardingSphereSchema schema = mock(ShardingSphereSchema.class);
+        ShardingSphereDatabase database = new ShardingSphereDatabase("foo_db", databaseType, mock(ResourceMetaData.class), ruleMetaData, schemas);
+        assertFalse(database.containsSchema("new_schema"));
+        
+        database.addSchema("new_schema", schema);
+        assertTrue(database.containsSchema("new_schema"));
+        assertThat(database.getSchema("new_schema"), is(schema));
+    }
+    
+    @Test
+    void assertDropSchema() {
+        DatabaseType databaseType = mock(DatabaseType.class);
+        RuleMetaData ruleMetaData = mock(RuleMetaData.class);
+        Map<String, ShardingSphereSchema> schemas = new HashMap<>();
+        ShardingSphereSchema schema = mock(ShardingSphereSchema.class);
+        schemas.put("schema1", schema);
+        ShardingSphereDatabase database = new ShardingSphereDatabase("foo_db", databaseType, mock(ResourceMetaData.class), ruleMetaData, schemas);
+        assertTrue(database.containsSchema("schema1"));
+        database.dropSchema("schema1");
+        assertFalse(database.containsSchema("schema1"));
+    }
+    
     @Test
     void assertIsComplete() {
         ResourceMetaData resourceMetaData = new ResourceMetaData(Collections.singletonMap("ds", new MockedDataSource()));
@@ -76,6 +132,20 @@ void assertIsNotCompleteWithoutDataSource() {
         assertFalse(new ShardingSphereDatabase("foo_db", mock(DatabaseType.class), resourceMetaData, ruleMetaData, Collections.emptyMap()).isComplete());
     }
     
+    @Test
+    void assertNotContainsDataSource() {
+        ResourceMetaData resourceMetaData = new ResourceMetaData(Collections.emptyMap());
+        RuleMetaData ruleMetaData = new RuleMetaData(Collections.singleton(mock(ShardingSphereRule.class)));
+        assertFalse(new ShardingSphereDatabase("foo_db", mock(DatabaseType.class), resourceMetaData, ruleMetaData, Collections.emptyMap()).containsDataSource());
+    }
+    
+    @Test
+    void assertContainsDataSource() {
+        ResourceMetaData resourceMetaData = new ResourceMetaData(Collections.singletonMap("ds", new MockedDataSource()));
+        RuleMetaData ruleMetaData = new RuleMetaData(Collections.singleton(mock(ShardingSphereRule.class)));
+        assertTrue(new ShardingSphereDatabase("foo_db", mock(DatabaseType.class), resourceMetaData, ruleMetaData, Collections.emptyMap()).containsDataSource());
+    }
+    
     @Test
     void assertReloadRules() {
         ResourceMetaData resourceMetaData = new ResourceMetaData(Collections.singletonMap("ds", new MockedDataSource()));