public void ShouldThrowException_WhenExtractFunctionReturnsUnsupportedType()
{
// Arrange
var value = new ComplexTestClass();
var immutable = new Immutable <ComplexTestClass>(value);
// Act
Action result = () => immutable.Extract(i => i.LotsOfInts.Where(l => l > 100));
// Assert
result.Should().Throw <InvalidOperationException>().WithMessage("*- Unable to clone interfaces. Use concrete types and implementations instead.");
}
public void ShouldNotAffectTheImmutable_WhenExtractFunctionTriesToAssign()
{
// Arrange
var value = new ComplexTestClass();
var immutable = new Immutable <ComplexTestClass>(value);
// Act
var result = immutable.Extract(i => { i.Name = "My Name"; return(i.Things); });
// Assert
immutable.Value("Name").As <string>().Should().BeNull();
}
public void ShouldReturnValueOfPropertySelectByFunction_WhenCalled()
{
// Arrange
var value = new ComplexTestClass();
var immutable = new Immutable <ComplexTestClass>(value);
// Act
var result = immutable.Extract(i => i.Things);
// Assert
result.Should().BeEquivalentTo(value.Things);
}
public void ShouldReturnClonedValue_WhenCalled()
{
// Arrange
var value = new ComplexTestClass();
var immutable = new Immutable <ComplexTestClass>(value);
// Act
var result = immutable.Extract(i => i.Things);
result.Prop1 = 75;
// Assert
value.Things.Prop1.Should().NotBe(75);
}