public void PeekShouldPeekSourceStack()
{
// arrange
var source = new Stack<object>();
var target = new StackAdapter<object>( source );
// act
target.Push( new object() );
// assert
Assert.Equal( source.Peek(), target.Peek() );
}
public void CopyToShouldCopySourceStack()
{
// arrange
var expected = new[] { new object(), new object(), new object() };
var source = new Stack<object>( expected );
var target = new StackAdapter<object>( source );
var actual = new object[3];
// act
target.CopyTo( actual, 0 );
// assert
Assert.True( actual.SequenceEqual( expected.Reverse() ) );
}
public void ClearShouldClearSourceStack()
{
// arrange
var source = new Stack<object>();
var target = new StackAdapter<object>( source );
target.Push( new object() );
// act
target.Clear();
// assert
Assert.Equal( 0, source.Count );
Assert.Equal( 0, target.Count );
}
public void PopShouldPopSourceStack()
{
// arrange
var source = new Stack<object>();
var target = new StackAdapter<object>( source );
target.Push( new object() );
var expected = source.Peek();
// act
var actual = target.Pop();
// assert
Assert.Equal( expected, actual );
}