Adapt SQLStateSQLExceptionTranslatorTests to newly added Informix codes

Signed-off-by: Lukáš Kvídera <[email protected]>

Author: sgflt

spring-jdbc/src/test/java/org/springframework/jdbc/support/SQLStateSQLExceptionTranslatorTests.java

@@ -90,6 +90,16 @@ void translateDuplicateKeySapHana() {
 		assertTranslation("23000", 301, DuplicateKeyException.class);
 	}
 
+	@Test  // gh-31554
+	void translateDuplicateKeyInformix1() {
+		assertTranslation("23000", -239, DuplicateKeyException.class);
+	}
+
+	@Test  // gh-31554
+	void translateDuplicateKeyInformix2() {
+		assertTranslation("23000", -268, DuplicateKeyException.class);
+	}
+
 	@Test
 	void translateDataAccessResourceFailure() {
 		assertTranslation("53", DataAccessResourceFailureException.class);