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Catel - Part 4 of n: Unit testing with Catel

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28 Jan 2011CPOL11 min read 48.6K   572   11  
This article explains how to write unit tests for MVVM using Catel.
using System.Windows;
using Catel.Windows.Data.Converters;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace Catel.Test.Windows.Data.Converters
{
    [TestClass]
    public class BooleanToVisibilityConverterTest
    {
        [TestMethod]
        public void Convert_Null()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(Visibility.Collapsed, converter.Convert(null, typeof(Visibility), null, null));
        }

        [TestMethod]
        public void Convert_NonBoolean()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(Visibility.Collapsed, converter.Convert("string", typeof(Visibility), null, null));
        }

        [TestMethod]
        public void Convert_True()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(Visibility.Visible, converter.Convert(true, typeof(Visibility), null, null));
        }

        [TestMethod]
        public void Convert_True_ParameterTrue()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(Visibility.Visible, converter.Convert(true, typeof(Visibility), true, null));
        }

        [TestMethod]
        public void Convert_True_ParameterFalse()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(Visibility.Collapsed, converter.Convert(true, typeof(Visibility), false, null));
        }

        [TestMethod]
        public void Convert_False()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(Visibility.Collapsed, converter.Convert(false, typeof(Visibility), null, null));
        }

        [TestMethod]
        public void Convert_FalseParameterTrue()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(Visibility.Collapsed, converter.Convert(false, typeof(Visibility), true, null));
        }

        [TestMethod]
        public void Convert_FalseParameterFalse()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(Visibility.Visible, converter.Convert(false, typeof(Visibility), false, null));
        }

        [TestMethod]
        public void ConvertBack_Null()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(false, converter.ConvertBack(null, typeof(bool), null, null));
        }

        [TestMethod]
        public void ConvertBack_Visible()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(true, converter.ConvertBack(Visibility.Visible, typeof(bool), null, null));
        }

        [TestMethod]
        public void ConvertBack_VisibleParameterTrue()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(true, converter.ConvertBack(Visibility.Visible, typeof(bool), true, null));
        }

        [TestMethod]
        public void ConvertBack_VisibleParameterFalse()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(false, converter.ConvertBack(Visibility.Visible, typeof(bool), false, null));
        }

        [TestMethod]
        public void ConvertBack_Collapsed()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(false, converter.ConvertBack(Visibility.Collapsed, typeof(bool), null, null));
        }

        [TestMethod]
        public void ConvertBack_CollapsedParameterTrue()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(false, converter.ConvertBack(Visibility.Collapsed, typeof(bool), true, null));
        }

        [TestMethod]
        public void ConvertBack_CollapsedParameterFalse()
        {
            var converter = new BooleanToCollapsingVisibilityConverter();
            Assert.AreEqual(true, converter.ConvertBack(Visibility.Collapsed, typeof(bool), false, null));
        }
    }
}

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


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