### Question:
SkuDetails { public boolean isTestSku() { return mSku.startsWith(TestSkus.TEST_PREFIX); } SkuDetails(String jsonSkuDetails);   SkuDetails(ItemType itemType,
               String sku,
               String price,
               String title,
               String description); String getSku(); String getPrice(); String getTitle(); String getDescription(); String getRawType(); ItemType getType(); @Override String toString(); boolean isTestSku();  }### Answer:
@Test public void shouldCheckIfTestSku() throws Exception { SkuDetails sku = new SkuDetails(INAPP, "123", "1.99", "ACME", "A great ACME flamethrower"); assertThat(sku.isTestSku()).isFalse(); SkuDetails test = new SkuDetails(INAPP, "android.test.foo", "1.99", "ACME", "A great ACME flamethrower"); assertThat(test.isTestSku()).isTrue(); }