public void WhenFalse_ShouldCastToTrue()
{
// Arrange
var value = TestableBooleanValue.Create(true);
// Act
var actual = (bool)value;
// Assert
actual.Should().BeTrue();
}
public void WhenLeftNull_ShouldBeFalse()
{
// Arrange
TestableBooleanValue value = null;
// act
var actual = value == true;
// assert
actual.Should().BeFalse();
}
public void WhenLeftNotNullRightNull_ShouldBeFalse()
{
// Arrange
var a = TestableBooleanValue.Create(true);
// act
var actual = a == null;
// assert
actual.Should().BeFalse();
}
public void WhenFalse_ShouldBeFalse()
{
// Arrange
var input = TestableBooleanValue.Create(false);
// act
bool actual = input;
// assert
actual.Should().BeFalse();
}
public void WhenLeftNullRightNotNull_ShouldBeFalse()
{
// Arrange
TestableBooleanValue a = null;
// act
var actual = a != null;
// assert
actual.Should().BeFalse();
}
public void WhenObjectOfDifferentType_ShouldBeFalse()
{
// Arrange
var a = TestableBooleanValue.Create(true);
var b = new object();
// Act
var actual = a == b;
// Assert
actual.Should().BeFalse();
}
public void WhenObjectOfDifferentBooleanValueType_ShouldBeTrue()
{
// Arrange
var a = TestableBooleanValue.Create(true);
var b = AnotherTestableBooleanValue.Create(true);
// Act
var actual = a != b;
// Assert
actual.Should().BeTrue();
}
public void WhenComparingFalseToBooleanValueTrue_ShouldNotBeEqual()
{
// arrange
const bool a = false;
var b = TestableBooleanValue.Create(true);
// act
var actual = a == b;
// assert
actual.Should().BeFalse();
}
public void WhenComparingBooleanValueTrueToTrue_ShouldBeEqual()
{
// arrange
var a = TestableBooleanValue.Create(true);
const bool b = true;
// act
var actual = a == b;
// assert
actual.Should().BeTrue();
}
public void WhenNull_ShouldThrowArgumentNullException()
{
// Arrange
TestableBooleanValue value = null;
// Act
Action act = () =>
{
var x = (bool)value;
};
// Assert
act.Should().Throw <ArgumentNullException>().WithMessage("Cannot convert NULL to a boolean value. (Parameter 'value')");
}
