public void ValidateDoubleToBeValue()
{
// Given
var validator = new DoubleValidator(42);
// When
validator.Be(42);
// Then
Assert.True(true);
}
public void ValidateDoubleToBeValueViolated()
{
// Given
var validator = new DoubleValidator(42);
// When
var exception = Assert.Throws <XunitException>(() => validator.Be(13, "that's the bottom line"));
// Then
Assert.NotNull(exception);
var rn = Environment.NewLine;
Assert.Equal(
$"{rn}validator{rn}is \"42\"{rn}but was expected to be \"13\"{rn}because that's the bottom line",
exception.UserMessage);
}