public void Be_Creatable()
{
var sut = new AggregateCheck(Enumerable.Empty <IValueCheck>());
sut.Should().NotBeNull();
sut.Should().BeAssignableTo <IValueCheck>();
}
public void Validate_Should_Accept_Null_Results_As_Success()
{
var check1 = Substitute.For <IValueCheck>();
var check2 = Substitute.For <IValueCheck>();
check1.Validate(null, null, null).Returns((ValueCheckResult)null);
check2.Validate(null, null, null).Returns((ValueCheckResult)null);
var sut = new AggregateCheck(new[] { check1, check2 });
var result = sut.Validate(null, null, null);
result.Should().NotBeNull();
result.IsValid.Should().BeTrue();
result.Exception.Should().BeNull();
}
public void Aggregate_Multiple_Error_Results()
{
var exception1 = new Exception();
var exception2 = new Exception();
var check1 = Substitute.For <IValueCheck>();
var check2 = Substitute.For <IValueCheck>();
check1.Validate(null, null, null).Returns(new ValueCheckResult(exception1));
check2.Validate(null, null, null).Returns(new ValueCheckResult(exception2));
var sut = new AggregateCheck(new[] { check1, check2 });
var result = sut.Validate(null, null, null);
result.Should().NotBeNull();
result.Should().BeOfType <AggregateValueCheckResult>("we return an aggregation of all errors");
result.IsValid.Should().BeFalse();
result.Exception.Should().BeOfType <AggregateException>();
}
public void Validate_should_run_all_checks()
{
var check1 = Substitute.For <IValueCheck>();
var check2 = Substitute.For <IValueCheck>();
check1.Validate(null, null, null).Returns((ValueCheckResult)null);
check2.Validate(null, null, null).Returns((ValueCheckResult)null);
var sut = new AggregateCheck(new[] { check1, check2 });
var result = sut.Validate(null, null, null);
result.Should().NotBeNull();
result.IsValid.Should().BeTrue();
result.Exception.Should().BeNull();
check1.Received(1).Validate(null, null, null);
check2.Received(1).Validate(null, null, null);
}
public void Aggregate_Single_Error_Results()
{
var exception = new Exception();
var checkResult1 = new ValueCheckResult(exception);
var checkResult2 = new ValueCheckResult(true);
var check1 = Substitute.For <IValueCheck>();
var check2 = Substitute.For <IValueCheck>();
check1.Validate(null, null, null).Returns(checkResult1);
check2.Validate(null, null, null).Returns(checkResult2);
var sut = new AggregateCheck(new[] { check1, check2 });
var result = sut.Validate(null, null, null);
result.Should().NotBeNull();
result.Should().Be(checkResult1, "we return the one and only error");
result.IsValid.Should().BeFalse();
result.Exception.Should().Be(exception);
}