public void testing_capacity_changes()
        {
            var a = new CKSortedArrayList <Mammal>((a1, a2) => a1.Name.CompareTo(a2.Name));

            a.Capacity.Should().Be(0);
            a.Capacity = 3;
            a.Capacity.Should().Be(4);
            a.Capacity = 0;
            a.Capacity.Should().Be(0);

            a.Add(new Mammal("1"));

            a.Invoking(sut => sut.Capacity = 0).Should().Throw <ArgumentException>();

            a.Add(new Mammal("2"));
            a.Add(new Mammal("3"));
            a.Add(new Mammal("4"));
            a.Add(new Mammal("5"));

            a.Capacity.Should().Be(8);
            a.Capacity = 5;
            a.Capacity.Should().Be(5);

            a.Add(new Mammal("6"));
            a.Add(new Mammal("7"));
            a.Add(new Mammal("8"));
            a.Add(new Mammal("9"));
            a.Add(new Mammal("10"));

            a.Capacity.Should().Be(10);

            a.Clear();

            a.Capacity.Should().Be(10);
        }
        public void testing_capacity_changes()
        {
            var a = new CKSortedArrayList <Mammal>((a1, a2) => a1.Name.CompareTo(a2.Name));

            Assert.That(a.Capacity, Is.EqualTo(0));
            a.Capacity = 3;
            Assert.That(a.Capacity, Is.EqualTo(4));
            a.Capacity = 0;
            Assert.That(a.Capacity, Is.EqualTo(0));

            a.Add(new Mammal("1"));

            Assert.Throws <ArgumentException>(() => a.Capacity = 0);

            a.Add(new Mammal("2"));
            a.Add(new Mammal("3"));
            a.Add(new Mammal("4"));
            a.Add(new Mammal("5"));

            Assert.That(a.Capacity, Is.EqualTo(8));
            a.Capacity = 5;
            Assert.That(a.Capacity, Is.EqualTo(5));

            a.Add(new Mammal("6"));
            a.Add(new Mammal("7"));
            a.Add(new Mammal("8"));
            a.Add(new Mammal("9"));
            a.Add(new Mammal("10"));

            Assert.That(a.Capacity, Is.EqualTo(10));

            a.Clear();

            Assert.That(a.Capacity, Is.EqualTo(10));
        }
        public void Covariance_support_via_ICKReadOnlyList_and_ICKWritableCollection()
        {
            var a = new CKSortedArrayList <Mammal>((a1, a2) => a1.Name.CompareTo(a2.Name));

            a.Add(new Mammal("B", 12));
            a.Add(new Canidae("A", 12, true));

            IReadOnlyList <Animal> baseObjects = a;

            for (int i = 0; i < baseObjects.Count; ++i)
            {
                baseObjects[i].Should().BeAssignableTo <Animal>("This does not test anything. It's just to be read.");
            }
            ICKWritableCollection <Canidae> dogs = a;

            dogs.Add(new Canidae("C", 8, false));
        }
        public void testing_expected_Argument_InvalidOperation_and_IndexOutOfRangeException()
        {
            var a = new CKSortedArrayList <Mammal>((a1, a2) => a1.Name.CompareTo(a2.Name));

            a.Invoking(sut => sut.IndexOf(null)).Should().Throw <ArgumentNullException>();
            a.Invoking(sut => sut.IndexOf(null)).Should().Throw <ArgumentNullException>();
            a.Invoking(sut => sut.IndexOf <Mammal>(new Mammal("Nothing"), null)).Should().Throw <ArgumentNullException>();
            a.Invoking(sut => sut.Add(null)).Should().Throw <ArgumentNullException>();

            a.Add(new Mammal("A"));
            a.Add(new Mammal("B"));

            a.Invoking(sut => { Mammal test = sut[2]; }).Should().Throw <IndexOutOfRangeException>();
            a.Invoking(sut => sut.CheckPosition(2)).Should().Throw <IndexOutOfRangeException>();
            a.Invoking(sut => { Mammal test = a[-1]; }).Should().Throw <IndexOutOfRangeException>();

            //Enumerator Exception
            var enumerator = a.GetEnumerator();

            enumerator.Invoking(sut => { Mammal temp = sut.Current; }).Should().Throw <InvalidOperationException>();
            enumerator.MoveNext();
            enumerator.Current.Should().Be(a[0]);
            enumerator.Reset();
            enumerator.Invoking(sut => { Mammal temp = sut.Current; }).Should().Throw <InvalidOperationException>();
            a.Clear(); //change _version
            enumerator.Invoking(sut => sut.Reset()).Should().Throw <InvalidOperationException>();
            enumerator.Invoking(sut => sut.MoveNext()).Should().Throw <InvalidOperationException>();

            //Exception
            IList <Mammal> testException = new CKSortedArrayList <Mammal>();

            testException.Add(new Mammal("Nothing"));
            testException.Invoking(sut => sut[-1] = new Mammal("A")).Should().Throw <IndexOutOfRangeException>();
            testException.Invoking(sut => sut[1]  = new Mammal("A")).Should().Throw <IndexOutOfRangeException>();
            testException.Invoking(sut => sut[0]  = null).Should().Throw <ArgumentNullException>();
            testException.Invoking(sut => sut.Insert(-1, new Mammal("A"))).Should().Throw <IndexOutOfRangeException>();
            testException.Invoking(sut => sut.Insert(2, new Mammal("A"))).Should().Throw <IndexOutOfRangeException>();

            testException.Invoking(sut => sut.Insert(0, null)).Should().Throw <ArgumentNullException>();
        }
        public void testing_expected_Argument_InvalidOperation_and_IndexOutOfRangeException()
        {
            var a = new CKSortedArrayList <Mammal>((a1, a2) => a1.Name.CompareTo(a2.Name));

            Assert.Throws <ArgumentNullException>(() => a.IndexOf(null));
            Assert.Throws <ArgumentNullException>(() => a.IndexOf <Mammal>(new Mammal("Nothing"), null));
            Assert.Throws <ArgumentNullException>(() => a.Add(null));

            a.Add(new Mammal("A"));
            a.Add(new Mammal("B"));

            Assert.Throws <IndexOutOfRangeException>(() => { Mammal test = a[2]; });
            Assert.Throws <IndexOutOfRangeException>(() => a.CheckPosition(2));
            Assert.Throws <IndexOutOfRangeException>(() => { Mammal test = a[-1]; });
            Assert.Throws <IndexOutOfRangeException>(() => a.CheckPosition(-1));

            //Enumerator Exception
            var enumerator = a.GetEnumerator();

            Assert.Throws <InvalidOperationException>(() => { Mammal temp = enumerator.Current; });
            enumerator.MoveNext();
            Assert.That(enumerator.Current, Is.EqualTo(a[0]));
            enumerator.Reset();
            Assert.Throws <InvalidOperationException>(() => { Mammal temp = enumerator.Current; });
            a.Clear(); //change _version
            Assert.Throws <InvalidOperationException>(() => enumerator.Reset());
            Assert.Throws <InvalidOperationException>(() => enumerator.MoveNext());

            //Exception
            IList <Mammal> testException = new CKSortedArrayList <Mammal>();

            testException.Add(new Mammal("Nothing"));
            Assert.Throws <IndexOutOfRangeException>(() => testException[-1] = new Mammal("A"));
            Assert.Throws <IndexOutOfRangeException>(() => testException[1]  = new Mammal("A"));
            Assert.Throws <ArgumentNullException>(() => testException[0]     = null);
            Assert.Throws <IndexOutOfRangeException>(() => testException.Insert(-1, new Mammal("A")));
            Assert.Throws <IndexOutOfRangeException>(() => testException.Insert(2, new Mammal("A")));
            Assert.Throws <ArgumentNullException>(() => testException.Insert(0, null));
        }
 public bool MoveNext()
 {
     if (_readers == null)
     {
         if (_files.Count == 0)
         {
             return(false);
         }
         _readers = new CKSortedArrayList <OneLogReader>(OneLogReader.CompareHeadTime, allowDuplicates: true);
         foreach (var r in _files.Where(occ => occ.LastEntryTime >= _firstLogTime).Select(occ => new OneLogReader(occ, _firstLogTime)))
         {
             _readers.Add(r);
         }
         if (_readers.Count == 0)
         {
             return(false);
         }
         RemoveAllDuplicates();
         Debug.Assert(_readers.Count > 0);
         return(true);
     }
     if (_readers.Count == 0)
     {
         return(false);
     }
     if (!_readers[0].Forward())
     {
         _readers.RemoveAt(0);
         return(_readers.Count > 0);
     }
     else
     {
         RemoveDuplicateAround(_readers.CheckPosition(0));
         Debug.Assert(_readers.Count > 0);
         return(true);
     }
 }