title: Testing in-app purchases in Kindle Fire application
body: <p>I am not able to test in app purchases even with Amazon Appstore SDK Tester.</p>
  
  <pre><code>public void onPurchaseResponse(final PurchaseResponse purchaseResponse)
  </code></pre>
  
  <p>purchaseResponse always has "INVALID_SKU" even if I have amazon.sdktester.json file with fake JSON.</p>
  
  <p>file content:
      {
      "test" : {
          "itemType": "CONSUMABLE",
          "price": 0.99,
          "title": "More Clicks!",
          "description": "Click your button ten more times!",
          "smallIconUrl": "http://www.google.com/images/srpr/logo3w.png"
        },</p>
  
  <pre><code>"com.amazon.buttonclicker.ten_clicks" : {
      "itemType": "CONSUMABLE",
      "price": 0.99,
      "title": "More Clicks!",
      "description": "Click your button ten more times!",
      "smallIconUrl": "http://www.google.com/images/srpr/logo3w.png"
    },
  
    "com.amazon.buttonclicker.blue_button" : {
      "itemType": "ENTITLED",
      "price": 0.99,
      "title": "Blue Button",
      "description": "Button Clicker - Now in Blue!",
      "smallIconUrl": "http://www.google.com/images/srpr/logo3w.png"
    }
  }
  </code></pre>
  
  <p>Even sample application does not work.
  Do you have any suggestions how to test application? It seems that Amazon SDK Tester does not intercept requests.</p>