@PostConstruct
    public void init() {
        // Test injection
        assertNotNull(this.channel, "channel");
        assertNotNull(this.stub, "stub");
        assertNotNull(this.blockingStub, "blockingStub");
        assertNotNull(this.futureStub, "futureStub");
        assertNotNull(this.constructorStub, "constructorStub");
        assertNotNull(this.factoryMethodStub, "factoryMethodStub");
        assertNotNull(this.customStub, "customStub");
    }
A test checking that the client injection works.

@author Daniel Theuke (daniel.theuke@heuboe.de)
tests/src/test/java/net/devh/boot/grpc/test/inject/GrpcClientInjectionTest.java