public void SecondCallToAddThrowsException()
{
var interfaces = new FeatureCollection();
var thing = new Thing();
interfaces.Add(typeof(IThing), thing);
Assert.Throws<ArgumentException>(() => interfaces.Add(typeof(IThing), thing));
}
public void SetNullValueRemoves()
{
var interfaces = new FeatureCollection();
var thing = new Thing();
interfaces.Add(typeof(IThing), thing);
Assert.Equal(interfaces[typeof(IThing)], thing);
interfaces[typeof(IThing)] = null;
object thing2;
Assert.False(interfaces.TryGetValue(typeof(IThing), out thing2));
}
public void IndexerAlsoAddsItems()
{
var interfaces = new FeatureCollection();
var thing = new Thing();
interfaces[typeof(IThing)] = thing;
Assert.Equal(interfaces[typeof(IThing)], thing);
object thing2;
Assert.True(interfaces.TryGetValue(typeof(IThing), out thing2));
Assert.Equal(thing2, thing);
}
public void AddedInterfaceIsReturned()
{
var interfaces = new FeatureCollection();
var thing = new Thing();
interfaces.Add(typeof(IThing), thing);
Assert.Equal(interfaces[typeof(IThing)], thing);
object thing2;
Assert.True(interfaces.TryGetValue(typeof(IThing), out thing2));
Assert.Equal(thing2, thing);
}
