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