HHH-18532 Good/Bad/ugly Test case

hibernate-core/src/test/java/org/hibernate/orm/test/mapping/type/java/GoodBadUglyTest.java

@@ -0,0 +1,138 @@
+package org.hibernate.orm.test.mapping.type.java;
+
+import java.sql.Time;
+import java.time.LocalDate;
+import java.time.LocalTime;
+import java.time.ZoneId;
+import java.util.TimeZone;
+
+import org.hibernate.annotations.JavaType;
+import org.hibernate.community.dialect.InformixDialect;
+import org.hibernate.type.descriptor.java.JdbcTimeJavaType;
+
+import org.hibernate.testing.orm.junit.DomainModel;
+import org.hibernate.testing.orm.junit.SessionFactory;
+import org.hibernate.testing.orm.junit.SessionFactoryScope;
+import org.hibernate.testing.orm.junit.SkipForDialect;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+/**
+ * Test case for @see org.hibernate.type.descriptor.java.JdbcTimeJavaType checking that retrieved value of
+ *
+ * @see java.sql.Time field is equal to saved one.
+ * <p>
+ * Date/time used for testing is June 20th 2024 at midnight.
+ * <p>
+ * Three identical tests are created, for three different time zones:
+ * - good : America/Chihuahua - time zone offset at test time is identical to offset at January 1st 1970; this test is successfull for all databases
+ * - bad :  America/Cancun - time zone offsets at test time is different from offset at January 1st 1970; this test is failing for some databases
+ * - ugly : America/Hermosillo - there is gap at midnight of January 1st 1970, so that year 1970 starts at 01:00 instead at 00:00; all tests with local time where local time is zero will fail
+ *
+ * [IANA Time Zone Database version 2024b (2024-09-04) removed 'uglay' time zones]
+ */
+
+@DomainModel(annotatedClasses = GoodBadUglyTest.Times.class)
+@SessionFactory
+@SkipForDialect(dialectClass = InformixDialect.class)
+@Disabled
+public class GoodBadUglyTest {
+
+	@BeforeEach
+	void clearData(final SessionFactoryScope scope) {
+		scope.inTransaction( session -> session.createMutationQuery( "delete from SqlTimeTest" ).executeUpdate() );
+	}
+
+	@Test
+	void good(final SessionFactoryScope scope) {
+		test( scope, "America/Chihuahua" );
+	}
+
+	@Test
+	void bad(final SessionFactoryScope scope) {
+		test( scope, "America/Cancun" );
+	}
+
+	@Test
+	@Disabled
+	void ugly(final SessionFactoryScope scope) {
+		test( scope, "America/Hermosillo" );
+	}
+
+	private static void test(final SessionFactoryScope scope, final String zoneId) {
+		final var original = TimeZone.getDefault();
+		TimeZone.setDefault( TimeZone.getTimeZone( zoneId ) );
+		try {
+			final var now = LocalDate.of( 2024, 6, 20 ).atStartOfDay( ZoneId.systemDefault() );
+			final var expected = scope.fromTransaction( session -> {
+				final var entity = new Times( 1 );
+				entity.sqlTime = new Time( now.toInstant().toEpochMilli() );
+				session.persist( entity );
+				return entity;
+			} );
+
+			final var actual = scope.fromSession( session -> session.get( Times.class, expected.id ) );
+
+			assertTrue(
+					JdbcTimeJavaType.INSTANCE.areEqual( expected.sqlTime, actual.sqlTime ),
+					"expected %s, but was %s".formatted( expected.sqlTime, actual.sqlTime )
+			);
+
+			assertEquals(
+					LocalTime.MIDNIGHT,
+					actual.sqlTime.toLocalTime(),
+					"Expecting that LocalTime.MIDNIGHT is 00:00"
+			);
+		}
+		finally {
+			TimeZone.setDefault( original );
+		}
+	}
+
+	@Entity(name = "SqlTimeTest")
+	@Table(name = "sql_time_test")
+	public static class Times {
+		@Id
+		private Integer id;
+
+		@JavaType(JdbcTimeJavaType.class)
+		private Time sqlTime;
+
+
+		public Times() {
+		}
+
+		public Times(final Integer id) {
+			this.id = id;
+		}
+
+		public Integer getId() {
+			return id;
+		}
+
+		public void setId(final Integer id) {
+			this.id = id;
+		}
+
+		public Time getSqlTime() {
+			return sqlTime;
+		}
+
+		public void setSqlTime(final Time sqlTime) {
+			this.sqlTime = sqlTime;
+		}
+
+		@Override
+		public String toString() {
+			return "Times{id=%d, sqlTime=%s}".formatted( id, sqlTime );
+		}
+	}
+}