public void ViewExtensions_ArgumentChecks() { AssertEx.Throws <ArgumentNullException>( () => ViewExtensions.SetTag(null, 0), ex => Assert.AreEqual("view", ex.ParamName)); AssertEx.Throws <ArgumentNullException>( () => ViewExtensions.SetReactContext(null, null), ex => Assert.AreEqual("view", ex.ParamName)); AssertEx.Throws <ArgumentNullException>( () => ViewExtensions.GetTag(null), ex => Assert.AreEqual("view", ex.ParamName)); AssertEx.Throws <ArgumentNullException>( () => ViewExtensions.GetReactContext(null), ex => Assert.AreEqual("view", ex.ParamName)); }