ClassCastException at running JUnit-Test with Annocation @QuarkusTest

Describe the bug

I have a junit parameterized test (written in Kotlin) that is annotated as a @QuarkusTest. My IDE can compile my test, but at the runtime i get a ClassCastException:

java.lang.ClassCastException: class io.restassured.internal.ValidatableResponseImpl cannot be cast to class io.restassured.response.ValidatableResponse (io.restassured.internal.ValidatableResponseImpl is in unnamed module of loader io.quarkus.bootstrap.classloading.QuarkusClassLoader @74960bfa; io.restassured.response.ValidatableResponse is in unnamed module of loader 'app')

My Test Class:

@QuarkusTest
@QuarkusTestResource(TestResource::class)
class ResourcesTest {

    @ParameterizedTest(name = "{0}")
    @MethodSource("validData")
    fun `should succeed when input valid`(requestBody: String, responseBodyValidator: (resp: ValidatableResponse) -> Unit) {
        val assertThat = given()
            .config(
                RestAssured.config()
                    .encoderConfig(encoderConfig().encodeContentTypeAs("application/graphql", ContentType.TEXT))
            )
            .body(requestBody)
            .headers(mapOf(HttpHeader.USERNAME to "foobar", HttpHeader.TENANT_ID to "1"))
            .contentType("application/graphql")
            .post("/graphql")
            .then()
            .assertThat()
        assertThat
            .contentType(ContentType.JSON)
            .statusCode(200)
        responseBodyValidator.invoke(assertThat)
    }

    companion object {
        @JvmStatic
        fun validData(): List<Arguments> {
            val parameters = ArrayList<Arguments>()
            parameters.add(
                Arguments.of(
                    VALID_INSERT_HUMAN_REQUEST,
                    fun(resp: ValidatableResponse): Unit { resp.body("data.insertHumanResource.firstName", Matchers.`is`(FIRST_NAME)) })
            )
            return parameters
        }
    }
}

Expected behavior

No response

Actual behavior

No response

How to Reproduce?

No response

Output of uname -a or ver

No response

Output of java -version

openjdk version “11.0.10” 2021-01-19 OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.10+9) OpenJDK 64-Bit Server VM AdoptOpenJDK (build 11.0.10+9, mixed mode)

GraalVM version (if different from Java)

No response

Quarkus version or git rev

2.2.3.Final

Build tool (ie. output of mvnw --version or gradlew --version)

apache maven 3.8.1

Additional information

No response

[stuartwdouglas]

This is a known issue with parameterised tests.

Because JUnit does not directly have support alternate class loaders we have to basically proxy the requests into a new class loader, so for parameterized tests we attempt to clone the parameters into the new class loader, which is not always possible.

If https://github.com/junit-team/junit5/issues/2579 is resolved we should be able to fix this.

[foal]

If somebody will face the same issue with @MethodSource I found the workaround:

instead of @MethodSource

	private static Stream<Arguments> testCreate() {
		return Stream.of(
			Arguments.of(getIngress(NAME_ISTIO, TEST_NAMESPACE, true), NEW, NEW),
			Arguments.of(getIngress(NAME_ISTIO, TEST_NAMESPACE, true), NEW_GW, NEW));
	}

	@ParameterizedTest
	@MethodSource
	@DisplayName("Should create Istio GW and VS for provided ingress")
	void testCreate(Ingress testIngress, BiPredicate<? super Ingress, ? super Gateway> testGatevay, BiPredicate<? super Ingress, ? super VirtualService> testVirtualService) {
        //test body
       }

I use the @EnumSource

	@Getter
	@AllArgsConstructor
	private static enum Params {
		SET01(getIngress(NAME_ISTIO, TEST_NAMESPACE, true), NEW, NEW),
		SET02(getIngress(NAME_ISTIO, TEST_NAMESPACE, true), NEW_GW, NEW),
		;

		private Ingress testIngress;
		private BiPredicate<? super Ingress, ? super Gateway> testGatevay;
		private BiPredicate<? super Ingress, ? super VirtualService> testVirtualService;
	}

	@ParameterizedTest
	@EnumSource
	@DisplayName("Should create Istio GW and VS for provided ingress")
	void testCreate(Params testData) {

		var testIngressIstio = testData.getTestIngress();
		var testGatevay = testData.getTestGatevay();
		var testVirtualService = testData.getTestVirtualService();
               //test body
      }