public void Test()
{
double[] source = new double[] { 1.0, 2.0, 3.0 };
string[] destination = new string[] { "3", "4" };
SetComparison<double, string, int> comparison = new SetComparison<double, string, int>(
source, delegate(double value) { return (int)value; },
destination, delegate(string value) { return int.Parse(value); });
Assert.AreEqual(new Set<double>(1.0, 2.0), new Set<double>(comparison.Deleted));
Assert.AreEqual(new Set<string>("4"), new Set<string>(comparison.Created));
Assert.AreEqual(new Set<Pair<double, string>>(new Pair<double,string>(3.0, "3")),
new Set<Pair<double, string>>(comparison.Unmodified));
}
public void When_comparing_sets(IEnumerable value1, IEnumerable value2, ComparisonResult expected)
{
var list1 = value1.Cast<object>().ToArray();
var list2 = value2.Cast<object>().ToArray();
"Given a fixture"
.Given(() =>
{
Fixture = new Fixture();
Fixture.Customize(new AutoMoqCustomization());
});
"And an inner comparison"
.And(() =>
{
Inner = Fixture.Freeze<Mock<IComparison>>();
Inner
.Setup(x => x.CanCompare(It.IsAny<Type>(), It.IsAny<Type>()))
.Returns(true);
Inner
.Setup(x => x.Compare(It.IsAny<IComparisonContext>(), It.IsAny<object>(), It.IsAny<object>()))
.Returns<IComparisonContext, object, object>((c, v1, v2) => v1.Equals(v2) ? ComparisonResult.Pass : ComparisonResult.Fail);
});
"And a SetComparison"
.And(() => SUT = Fixture.Create<SetComparison>());
"And a Comparison context object"
.And(() => Context = new ComparisonContext("Set"));
"When comparing enumerables"
.When(() => Result = SUT.Compare(Context, value1, value2));
"Then it should return {2}"
.Then(() => Result.ShouldBe(expected));
if (list1.Length == list2.Length)
{
"And it should call the inner comparison Compare for each element in the set"
.And(() =>
{
for (var i = 0; i < list1.Length; i++)
{
var local = i;
Inner.Verify(x => x.Compare(
It.IsAny<ComparisonContext>(),
list1[local],
It.IsAny<object>()), Times.AtLeastOnce());
}
});
if (expected == ComparisonResult.Fail)
{
"And it should add a SetDifference"
.And(() => Context.Differences[0].ShouldBeTypeOf<SetDifference>());
}
}
else
{
var expectedDifference = new Difference
{
Breadcrumb = "Set",
ChildProperty = "Count",
Value1 = list1.Length,
Value2 = list2.Length
};
"And it should add a Difference"
.And(() => Context.Differences[0].ShouldBe(expectedDifference));
}
}
public void Creating_a_SetComparison()
{
"Given a fixture"
.Given(() =>
{
Fixture = new Fixture();
Fixture.Customize(new AutoMoqCustomization());
});
"When creating an SetComparison"
.When(() => SUT = Fixture.Create<SetComparison>());
"Then it should implement IComparison"
.Then(() => SUT.ShouldBeTypeOf<IComparison>());
}
public void Can_compare_types(Type type1, Type type2, Type elementType1, Type elementType2, bool expected)
{
"Given a fixture"
.Given(() =>
{
Fixture = new Fixture();
Fixture.Customize(new AutoMoqCustomization());
});
"And an inner comparison"
.And(() =>
{
Inner = Fixture.Freeze<Mock<IComparison>>();
Inner
.Setup(x => x.CanCompare(It.IsAny<Type>(), It.IsAny<Type>()))
.Returns(true);
});
"And an ListComparison"
.And(() => SUT = Fixture.Create<SetComparison>());
"When calling CanCompare({0}, {1})"
.When(() => CanCompareResult = SUT.CanCompare(type1, type2));
"It should return {2}"
.Then(() => CanCompareResult.ShouldBe(expected));
if (expected)
{
"and it should call CanCompare on the inner comparer"
.And(() => Inner.Verify(x => x.CanCompare(elementType1, elementType2)));
}
}