/* DocumentWriterClass.cs
 * part of zaaReloaded2
 * 
 * Copyright 2015-2017 Daniel Kraus
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NUnit.Framework;
using zaaReloaded2.Formatter;
using Microsoft.Office.Interop.Word;

namespace Tests.Formatter
{
    [TestFixture]
    class DocumentWriterTest
    {
        DocumentWriter _docWriter;

        [SetUp]
        public void SetUp()
        {
            _docWriter = new DocumentWriter();
        }

        [TearDown]
        public void TearDown()
        {
        }

        [Test]
        public void AddText()
        {
            string s = "hello world";
            _docWriter.Write(s);
            Assert.AreEqual(s, _docWriter.ToString());
        }

        [Test]
        public void AddLine()
        {
            string s = "hello world";
            _docWriter.WriteLine(s);
            Assert.AreEqual(s + Environment.NewLine, _docWriter.ToString());
        }

        [Test]
        public void PrependText()
        {
            string first = "first";
            string second = "second";
            _docWriter.Write(first);
            _docWriter.Prepend(second);
            Assert.AreEqual(second + first, _docWriter.ToString());
        }

        [Test]
        public void FlushingThrowsWithoutTarget()
        {
            _docWriter.Write("asdf");
            Assert.Throws<InvalidOperationException>(_docWriter.Flush);
        }

        [Test]
        public void FlushBuffer()
        {
            DocumentWriter parent = new DocumentWriter();
            _docWriter.Parent = parent;
            string s = "hello world";
            _docWriter.Write(s);
            _docWriter.Flush();
            Assert.AreEqual(s, parent.ToString());
        }

        [Test]
        public void BufferIsEmptyAfterFlush()
        {
            DocumentWriter parent = new DocumentWriter();
            _docWriter.Parent = parent;
            string s = "hello world";
            _docWriter.Write(s);
            _docWriter.Flush();
            Assert.IsFalse(_docWriter.HasBufferedText);
            Assert.AreEqual(String.Empty, _docWriter.ToString());
        }

        [Test]
        public void TextMarkup()
        {
            DocumentWriter output = new DocumentWriter();
            _docWriter.Parent = output;
            _docWriter.Write("This is not bold. <b>This is bold!</b>\rThis not.");
            _docWriter.Flush();
            Assert.AreEqual("This is not bold. This is bold!\rThis not.", output.Text);
        }
    }
}