public void RunCommand_ShouldReturnExpectedCanExecuteResult_WhenGivenAnInputString(string input, bool expected)
{
// Arrange
var target = new WordCounterViewModel(s => s.CountDistinctWords()) {Input = input};
// Act
bool actual = target.RunCommand.CanExecute();
// Assert
Assert.AreEqual(expected, actual);
}
public async void RunCommand_ShouldSetListOfWordCount_WhenGivenAValidInputString()
{
// Arrange
var target = new WordCounterViewModel(str => str.CountDistinctWords())
{
WordCount = null,
Input = "hello world"
};
// Act
await target.RunCommand.Execute();
// Assert
Assert.IsNotNull(target.WordCount);
}
public async void RunCommand_ShouldEnableRunCommand_WhenProcessingIsComplete()
{
// Arrange
var target = new WordCounterViewModel(str =>
{
Thread.Sleep(1000);
return str.CountDistinctWords();
})
{
WordCount = null,
Input = "hello world"
};
// Act
await target.RunCommand.Execute();
bool canExecute = target.RunCommand.CanExecute();
// Assert
Assert.IsTrue(canExecute);
}
