How to mock Pipe when testing Component
<p>Currently I am overriding providers to use mocked services like this:</p>

<pre class="lang-js prettyprint-override"><code>beforeEach(inject([TestComponentBuilder], (tcb: TestComponentBuilder) =&gt; {
    tcb.overrideProviders(AddFieldToObjectDropdownComponent,
        [
             provide(ServiceA, { useClass: MockServiceA })),
             provide(ServiceB, { useClass: MockServiceB }))
        ])
    ...
</code></pre>

<p>I want to do same thing for pipes that the component uses. I tried, <code>provide(PipeA, { useClass: MockPipeA })</code> and <code>provide(PipeA, { useValue: new MockPipeA() })</code> but both didn't work.</p>