public void SelectsEmptyConstructor()
{
var target0 = new MatchingSignatureConstructorSelector();
var c0 = target0.SelectConstructorBinding(_ctors);
Assert.IsNotNull(c0);
Assert.AreEqual(0, c0.TargetConstructor.GetParameters().Length);
}
public void SelectsConstructorWithParameters()
{
var target2 = new MatchingSignatureConstructorSelector(typeof(int), typeof(string));
var c2 = target2.SelectConstructorBinding(_ctors);
Assert.IsNotNull(c2);
Assert.AreEqual(2, c2.TargetConstructor.GetParameters().Length);
}
public void WhenNoMatchingConstructorsAvailable_ExceptionDescribesTargetTypeAndSignature()
{
var target = new MatchingSignatureConstructorSelector(typeof(string));
var dx = Assert.Throws<DependencyResolutionException>(() =>
target.SelectConstructorBinding(_ctors));
Assert.That(dx.Message.Contains(typeof(ThreeConstructors).Name));
Assert.That(dx.Message.Contains(typeof(string).Name));
}