HHH-19559 improve the test

- skip test on Sybase due to incomplete jTDS implementation
- also skip on Oracle and MySQL since we can't create schemas

Author: gavinking

hibernate-core/src/test/java/org/hibernate/orm/test/multitenancy/SchemaBasedMultitenancyTest.java

@@ -9,35 +9,60 @@
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.hibernate.context.spi.CurrentTenantIdentifierResolver;
 import org.hibernate.context.spi.TenantSchemaMapper;
+import org.hibernate.dialect.SybaseASEDialect;
 import org.hibernate.relational.SchemaManager;
 import org.hibernate.annotations.TenantId;
+import org.hibernate.testing.orm.junit.DialectFeatureChecks;
 import org.hibernate.testing.orm.junit.EntityManagerFactoryScope;
+import org.hibernate.testing.orm.junit.JiraKey;
 import org.hibernate.testing.orm.junit.Jpa;
+import org.hibernate.testing.orm.junit.RequiresDialectFeature;
 import org.hibernate.testing.orm.junit.Setting;
+import org.hibernate.testing.orm.junit.SkipForDialect;
 import org.junit.jupiter.api.Test;
 
 import static org.hibernate.cfg.MultiTenancySettings.MULTI_TENANT_IDENTIFIER_RESOLVER;
 import static org.hibernate.cfg.MultiTenancySettings.MULTI_TENANT_SCHEMA_MAPPER;
+import static org.junit.jupiter.api.AssertionsKt.assertNotNull;
+import static org.junit.jupiter.api.AssertionsKt.assertNull;
 
 @Jpa(annotatedClasses = {SchemaBasedMultitenancyTest.Person.class},
 		integrationSettings =
 				{@Setting(name = MULTI_TENANT_SCHEMA_MAPPER,
 						value = "org.hibernate.orm.test.multitenancy.SchemaBasedMultitenancyTest$MyMapper"),
 				@Setting(name = MULTI_TENANT_IDENTIFIER_RESOLVER,
 						value = "org.hibernate.orm.test.multitenancy.SchemaBasedMultitenancyTest$MyResolver")})
+@RequiresDialectFeature(feature = DialectFeatureChecks.SupportSchemaCreation.class)
+@SkipForDialect(dialectClass = SybaseASEDialect.class, reason = "getSchema() method not implemented by jTDS")
+@JiraKey("HHH-19559")
 public class SchemaBasedMultitenancyTest {
+	private static String currentTenantIdentifier;
+
 	@Test void test(EntityManagerFactoryScope scope) {
 		var schemaManager = (SchemaManager) scope.getEntityManagerFactory().getSchemaManager();
-		SchemaManager managerForTenantSchema = schemaManager.forSchema( "HELLO" );
-		managerForTenantSchema.drop(true);
-		managerForTenantSchema.create( true );
+		createSchema( schemaManager, "HELLO" );
+		createSchema( schemaManager, "GOODBYE" );
+		currentTenantIdentifier = "hello";
 		scope.inTransaction( session -> {
 			Person person = new Person();
 			person.ssn = "123456789";
 			person.tenantId = "hello";
 			person.name = "Gavin";
 			session.persist( person );
 		} );
+		scope.inTransaction( session -> {
+			assertNotNull( session.find( Person.class, "123456789" ) );
+		} );
+		currentTenantIdentifier = "goodbye";
+		scope.inTransaction( session -> {
+			assertNull( session.find( Person.class, "123456789" ) );
+		} );
+	}
+
+	private static void createSchema(SchemaManager schemaManager, String schemaName) {
+		SchemaManager managerForTenantSchema = schemaManager.forSchema( schemaName );
+		managerForTenantSchema.drop(true);
+		managerForTenantSchema.create( true );
 	}
 
 	@Entity(name = "PersonForTenant")
@@ -52,7 +77,7 @@ static class Person {
 	public static class MyResolver implements CurrentTenantIdentifierResolver<String> {
 		@Override
 		public @NonNull String resolveCurrentTenantIdentifier() {
-			return "hello";
+			return currentTenantIdentifier;
 		}
 
 		@Override