@Override
    @DirtiesContext
    @TestFactory
    DynamicTestCollection clientStreamingCallTests() {
        return super.clientStreamingCallTests()
                .add("clientStreaming-secondary",
                        () -> assertClientStreamingCallFailure(this.serviceStubSecondary, PERMISSION_DENIED))
                .add("clientStreaming-noPerm-secondary",
                        () -> assertClientStreamingCallFailure(this.noPermStubSecondary, PERMISSION_DENIED));
    }
A test checking that the server and client can start and connect to each other with minimal config.
tests/src/test/java/net/devh/boot/grpc/test/security/ManualSecurityWithBasicAuthTest.java