async void ExecRequires_NotNullInput()
{
var transformerMock = new Mock <ILazy <ITransformationManager> >();
var handler = new IntegerInputOnlyHandler(transformerMock.Object);
var exception =
await Assert.ThrowsAsync <ArgumentNullException>(() =>
handler.ExecAsync((string)null));
Assert.Equal("input", exception.ParamName);
}
async void ExecFrom_WhenInputIsCorrectlyTransformed_ExecActionIsTriggered()
{
var transformerMock = new Mock <ILazy <ITransformationManager> >();
transformerMock.Setup(s => s.Value.Transform <string, Int64?>(It.IsAny <string>()))
.Returns(0);
var handler = new IntegerInputOnlyHandler(transformerMock.Object);
var exception =
await Assert.ThrowsAsync <NotImplementedException>(() => handler.ExecAsync(""));
Assert.Equal("Integer passou por aqui!", exception.Message);
}