public void ByTest1()
{
var actual = IEqualityComparerEx.By <String, String>(x => x, new StringLengthComparer());
var equals = actual.Equals("test", "1234");
equals.Should()
.BeTrue();
}
public void ByTest()
{
// ReSharper disable once RedundantArgumentDefaultValue
var actual = IEqualityComparerEx.By <String, Int32>(x => x.Length, null);
var equals = actual.Equals("test", "1234");
equals.Should()
.BeTrue();
}
public void BySelectorNullTest()
{
Func <String, String> keySelector = null;
// ReSharper disable once AssignNullToNotNullAttribute
// ReSharper disable once ReturnValueOfPureMethodIsNotUsed
Action test = () => IEqualityComparerEx.By(keySelector, new StringLengthComparer());
test.ShouldThrow <ArgumentNullException>();
}
