title: Add Header Value For Spring TestRestTemplate Integration Test
body: <p>I am using <code>TestRestTemplate</code> for integration testing on our product.</p>
  
  <p>I have one test that looks like this:</p>
  
  <pre><code>@Test
  public void testDeviceQuery() {
      ResponseEntity&lt;Page&gt; deviceInfoPage = template.getForEntity(base, Page.class);
  
      // validation code here
  }
  </code></pre>
  
  <p>This particular request expects a Header value. Can someone please let me know how I can add a header to the <code>TestRestTemplate</code> call?</p>