@@ -0,0 +1,643 @@
+package es.sandbox.spikes.java8;%0A%0A/**%0A * Created by jeslopalo on 30/12/15.%0A */%0Apublic class InvocationSpy %7B%0A%0A    private static InvocationSpy instance = new InvocationSpy();%0A%0A    private boolean invoked;%0A%0A    public static final InvocationSpy sharedSpy() %7B%0A        return instance;%0A    %7D%0A%0A    public static final InvocationSpy spy() %7B%0A        return new InvocationSpy();%0A    %7D%0A%0A    private InvocationSpy() %7B%0A        this.invoked = false;%0A    %7D%0A%0A    public void invocation() %7B%0A        this.invoked = true;%0A    %7D%0A%0A    public boolean invoked() %7B%0A        return this.invoked;%0A    %7D%0A%0A    public void clear() %7B%0A        this.invoked = false;%0A    %7D%0A%7D%0A

Add test fixture InvocationSpy to spy lambda executions