@Test
public void testUniqueNullAttributeSlayerAPI() {
final ComposedTypeModel typeUnderInvestigation =
typeService.getComposedTypeForClass(LinkModel.class);
final AttributeDescriptorModel attributeDesc =
typeService.getAttributeDescriptor(typeUnderInvestigation, LinkModel.LANGUAGE);
Assert.assertTrue(attributeDesc.getOptional().booleanValue());
Assert.assertTrue(attributeDesc.getUnique().booleanValue());
final LinkModel link1 = modelService.create(LinkModel.class);
link1.setQualifier("link1");
link1.setSource(source);
link1.setTarget(target);
// the optional unique attribute
link1.setLanguage(language);
modelService.save(link1); // <-- OK!
final LinkModel link2 = modelService.create(LinkModel.class);
link2.setQualifier("link2");
link2.setSource(source);
link2.setTarget(target);
// the optional unique attribute
link2.setLanguage(null);
modelService.save(link2); // <-- OK! //<-- still OK, only one null value!
final LinkModel link3 = modelService.create(LinkModel.class);
link3.setQualifier("link3");
link3.setSource(source);
link3.setTarget(target);
// the optional unique attribute
link3.setLanguage(null);
boolean success = false;
try {
modelService.save(link3); // <-- what happens now?!
Assert.fail(
"Should have failed with 'ModelSavingException' for ambiguous unique attribute, which is 'null'");
} catch (final ModelSavingException e) {
success = true;
}
Assert.assertTrue(
"Should have failed with 'ModelSavingException' for ambiguous unique attribute, which is 'null'",
success);
}
