HHH-11913 : Add test for issue

hibernate-core/src/test/java/org/hibernate/test/schemaupdate/index/IndexesCreationTest.java

@@ -0,0 +1,142 @@
+package org.hibernate.test.schemaupdate.index;
+
+import java.util.List;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.Index;
+import javax.persistence.Table;
+
+import org.hibernate.boot.Metadata;
+import org.hibernate.boot.MetadataSources;
+import org.hibernate.boot.registry.StandardServiceRegistry;
+import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
+import org.hibernate.dialect.H2Dialect;
+import org.hibernate.dialect.MySQLDialect;
+import org.hibernate.dialect.PostgreSQL81Dialect;
+import org.hibernate.tool.schema.internal.SchemaCreatorImpl;
+
+import org.hibernate.testing.RequiresDialect;
+import org.hibernate.testing.TestForIssue;
+import org.hibernate.testing.junit4.BaseUnitTestCase;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertTrue;
+
+@TestForIssue(jiraKey = "HHH-11913")
+@RequiresDialect(H2Dialect.class)
+@RequiresDialect(PostgreSQL81Dialect.class)
+@RequiresDialect(MySQLDialect.class)
+public class IndexesCreationTest extends BaseUnitTestCase {
+	private StandardServiceRegistry ssr;
+	private Metadata metadata;
+
+	@Before
+	public void setUp() {
+		ssr = new StandardServiceRegistryBuilder().build();
+		metadata = new MetadataSources( ssr )
+				.addAnnotatedClass( TestEntity.class )
+				.buildMetadata();
+	}
+
+	@Test
+	public void testTheIndexIsGenerated() {
+		final List<String> commands = new SchemaCreatorImpl( ssr ).generateCreationCommands(
+				metadata,
+				false
+		);
+
+		assertThatCreateIndexCommandIsGenerated( "CREATE INDEX FIELD_1_INDEX ON TEST_ENTITY (FIELD_1)", commands );
+		assertThatCreateIndexCommandIsGenerated(
+				"CREATE INDEX FIELD_2_INDEX ON TEST_ENTITY (FIELD_2 DESC, FIELD_3 ASC)",
+				commands
+		);
+		assertThatCreateIndexCommandIsGenerated(
+				"CREATE INDEX FIELD_4_INDEX ON TEST_ENTITY (FIELD_4 ASC)",
+				commands
+		);
+	}
+
+	private void assertThatCreateIndexCommandIsGenerated(String expectedCommand, List<String> commands) {
+		boolean createIndexCommandIsGenerated = false;
+		for ( String command : commands ) {
+			if ( command.toLowerCase().contains( expectedCommand.toLowerCase() ) ) {
+				createIndexCommandIsGenerated = true;
+			}
+		}
+		assertTrue(
+
+				"Expected " + expectedCommand + " command not found",
+				createIndexCommandIsGenerated
+		);
+	}
+
+	@After
+	public void tearDown() {
+		StandardServiceRegistryBuilder.destroy( ssr );
+	}
+
+	@Entity(name = "TestEntity")
+	@Table(name = "TEST_ENTITY",
+			indexes = {
+					@Index(name = "FIELD_1_INDEX", columnList = "FIELD_1"),
+					@Index(name = "FIELD_2_INDEX", columnList = "FIELD_2 DESC, FIELD_3 ASC"),
+					@Index(name = "FIELD_4_INDEX", columnList = "FIELD_4 ASC")
+			}
+	)
+	public static class TestEntity {
+		private long id;
+		private String field1;
+		private String field2;
+		private String field3;
+		private String field4;
+
+		@Id
+		@Column
+		public long getId() {
+			return id;
+		}
+
+		public void setId(int id) {
+			this.id = id;
+		}
+
+		@Column(name = "FIELD_1")
+		public String getField1() {
+			return field1;
+		}
+
+		public void setField1(String field1) {
+			this.field1 = field1;
+		}
+
+		@Column(name = "FIELD_2")
+		public String getField2() {
+			return field2;
+		}
+
+		public void setField2(String field2) {
+			this.field2 = field2;
+		}
+
+		@Column(name = "FIELD_3")
+		public String getField3() {
+			return field3;
+		}
+
+		public void setField3(String field3) {
+			this.field3 = field3;
+		}
+
+		@Column(name = "FIELD_4")
+		public String getField4() {
+			return field4;
+		}
+
+		public void setField4(String field4) {
+			this.field4 = field4;
+		}
+	}
+}