public async Task WriteLines_WritesCharBuffer()
        {
            // Arrange
            var newLine = Environment.NewLine;
            var writer  = new StringCollectionTextWriter(Encoding.UTF8);

            // Act
            writer.WriteLine();
            await writer.WriteLineAsync();

            // Assert
            var actual = writer.Buffer.BufferEntries;

            Assert.Equal <object>(new[] { newLine, newLine }, actual);
        }
        public async Task Write_WritesCharBuffer()
        {
            // Arrange
            var input1 = new ArraySegment<char>(new char[] { 'a', 'b', 'c', 'd' }, 1, 3);
            var input2 = new ArraySegment<char>(new char[] { 'e', 'f' }, 0, 2);
            var input3 = new ArraySegment<char>(new char[] { 'g', 'h', 'i', 'j' }, 3, 1);
            var writer = new StringCollectionTextWriter(Encoding.UTF8);

            // Act
            writer.Write(input1.Array, input1.Offset, input1.Count);
            await writer.WriteAsync(input2.Array, input2.Offset, input2.Count);
            await writer.WriteLineAsync(input3.Array, input3.Offset, input3.Count);

            // Assert
            var buffer = writer.Buffer.BufferEntries;
            Assert.Equal(4, buffer.Count);
            Assert.Equal("bcd", buffer[0]);
            Assert.Equal("ef", buffer[1]);
            Assert.Equal("j", buffer[2]);
            Assert.Equal(Environment.NewLine, buffer[3]);
        }
        public async Task Write_WritesStringBuffer()
        {
            // Arrange
            var newLine = Environment.NewLine;
            var input1  = "Hello";
            var input2  = "from";
            var input3  = "ASP";
            var input4  = ".Net";
            var writer  = new StringCollectionTextWriter(Encoding.UTF8);

            // Act
            writer.Write(input1);
            writer.WriteLine(input2);
            await writer.WriteAsync(input3);

            await writer.WriteLineAsync(input4);

            // Assert
            var actual = writer.Buffer.BufferEntries;

            Assert.Equal <object>(new[] { input1, input2, newLine, input3, input4, newLine }, actual);
        }
        public async Task Write_WritesCharBuffer()
        {
            // Arrange
            var input1 = new ArraySegment <char>(new char[] { 'a', 'b', 'c', 'd' }, 1, 3);
            var input2 = new ArraySegment <char>(new char[] { 'e', 'f' }, 0, 2);
            var input3 = new ArraySegment <char>(new char[] { 'g', 'h', 'i', 'j' }, 3, 1);
            var writer = new StringCollectionTextWriter(Encoding.UTF8);

            // Act
            writer.Write(input1.Array, input1.Offset, input1.Count);
            await writer.WriteAsync(input2.Array, input2.Offset, input2.Count);

            await writer.WriteLineAsync(input3.Array, input3.Offset, input3.Count);

            // Assert
            var buffer = writer.Buffer.BufferEntries;

            Assert.Equal(4, buffer.Count);
            Assert.Equal("bcd", buffer[0]);
            Assert.Equal("ef", buffer[1]);
            Assert.Equal("j", buffer[2]);
            Assert.Equal(Environment.NewLine, buffer[3]);
        }
        public async Task Write_WritesStringBuffer()
        {
            // Arrange
            var newLine = Environment.NewLine;
            var input1 = "Hello";
            var input2 = "from";
            var input3 = "ASP";
            var input4 = ".Net";
            var writer = new StringCollectionTextWriter(Encoding.UTF8);

            // Act
            writer.Write(input1);
            writer.WriteLine(input2);
            await writer.WriteAsync(input3);
            await writer.WriteLineAsync(input4);

            // Assert
            var actual = writer.Buffer.BufferEntries;
            Assert.Equal<object>(new[] { input1, input2, newLine, input3, input4, newLine }, actual);
        }
        public async Task WriteLines_WritesCharBuffer()
        {
            // Arrange
            var newLine = Environment.NewLine;
            var writer = new StringCollectionTextWriter(Encoding.UTF8);

            // Act
            writer.WriteLine();
            await writer.WriteLineAsync();

            // Assert
            var actual = writer.Buffer.BufferEntries;
            Assert.Equal<object>(new[] { newLine, newLine }, actual);
        }