ArchUnit case insensitive name matching - kotlin

Question

I'm trying to setup tests with Arch Unit to test my naming conventions, following the official examples.
It seems ArchUnit's naming assertions are case sensitive, which is bothering me.
I want to test that no classes in the package domain.service contains the word service.
Given a class domain.service.FileSystemService:
This test passes:
#ArchTest
val domain_service_should_not_have_names_containing_service: ArchRule =
noClasses()
.that().resideInAPackage("..domain.service..")
.should().haveSimpleNameContaining("service")
This test fails:
#ArchTest
val domain_service_should_not_have_names_containing_service: ArchRule =
noClasses()
.that().resideInAPackage("..domain.service..")
.should().haveSimpleNameContaining("Service")
Am I missing something? Is there a way to make ArchUnit's comparisons case insensitive?

Answer 1

If you don't want to use haveNameMatching as proposed in the comments you can also create your own ArchConditions.
public static ArchCondition<JavaClass> containName(String namePart) {
return new NameContains(namePart);
}
private static class NameContains extends ArchCondition<JavaClass> {
private String namePart;
NameContains(String namePart) {
super("contain '" + namePart + "' in the name");
this.namePart = namePart;
}
#Override
public void check(JavaClass javaClass, ConditionEvents events) {
boolean containsName = javaClass.getSimpleName().toLowerCase().contains(namePart.toLowerCase());
String message;
if (containsName) {
message = createCheckMessage(javaClass, "contains '" + namePart + "' in the name");
} else {
message = createCheckMessage(javaClass, "does not contain '" + namePart + "' in the name");
}
events.add(new SimpleConditionEvent(javaClass, containsName, message));
}
}
// taken from com.tngtech.archunit.lang.conditions.ArchConditions
public static <T extends HasDescription & HasSourceCodeLocation> String createCheckMessage(T object,
String message) {
return object.getDescription() + " " + message + " in " + object.getSourceCodeLocation();
}
You can use it like this:
rules.add(noClasses().that().resideInAPackage("..domain.service..").should(containName("Service")));