public void Apply_OnSome_ResultContainsValue()
{
var property = new TestObject.TestProperty();
var testObject = new TestObject {
Property = property
};
Option <TestObject> some = testObject;
var result = some.Apply(obj => obj.Property);
((Some <TestObject.TestProperty>)result).Content.Should().Be(property);
}
public void Apply_OnSome_WhenUsingImplicitCast_ContainsValue()
{
var property = new TestObject.TestProperty();
var testObject = new TestObject {
Property = property
};
Option <TestObject> some = testObject;
TestObject.TestProperty result =
some.Apply(obj => obj.Property) as Some <TestObject.TestProperty>;
result.Should().Be(property);
}
public void SelectSome_ReturnsCorrectValue()
{
var testProperty = new TestObject.TestProperty();
var list = new List <TestObject> {
new TestObject {
Option = testProperty
}
};
var result = list.SelectSome(x => x.Option).First();
result.Should().Be(testProperty);
}
public void FirstOrNonePredicateOnEmpty_ReturnsNone()
{
TestObject.TestProperty nullProperty = null;
var notThisOne = new TestObject {
Option = nullProperty
};
var list = new List <TestObject> {
notThisOne
};
var result = list.FirstOrNone(x => x.Option is Some <TestObject.TestProperty>);
result.Should().BeOfType <None <TestObject> >();
}
public void SelectSome_FiltersOutNones()
{
TestObject.TestProperty nullProperty = null;
var notThisOne = new TestObject {
Option = nullProperty
};
var list = new List <TestObject> {
notThisOne, new TestObject()
};
var result = list.SelectSome(x => x.Option);
result.Should().ContainSingle();
}
public void FirstOrNonePredicateWithFirst_ContainsCorrectValue()
{
TestObject.TestProperty nullProperty = null;
var notThisOne = new TestObject {
Option = nullProperty
};
var thatOne = new TestObject();
var list = new List <TestObject> {
notThisOne, thatOne
};
var result = list.FirstOrNone(x => x.Option is Some <TestObject.TestProperty>)
.ResultOr(() => throw new Exception("Test failed because FirstOrNone returned None"));
result.Should().Be(thatOne);
}
