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ItemsLayoutTypeConverterTests.cs
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ItemsLayoutTypeConverterTests.cs
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using System;
using NUnit.Framework;
namespace Xamarin.Forms.Core.UnitTests
{
[TestFixture]
public class ItemsLayoutTypeConverterTests : BaseTestFixture
{
[Test]
public void HorizontalListShouldReturnLinearItemsLayout()
{
var converter = new ItemsLayoutTypeConverter();
var result = converter.ConvertFromInvariantString("HorizontalList");
Assert.AreSame(LinearItemsLayout.Horizontal, result);
}
[Test]
public void VerticalListShouldReturnLinearItemsLayout()
{
var converter = new ItemsLayoutTypeConverter();
var result = converter.ConvertFromInvariantString("VerticalList");
Assert.AreSame(LinearItemsLayout.Vertical, result);
}
[Test]
public void HorizontalGridShouldReturnGridItemsLayout()
{
var converter = new ItemsLayoutTypeConverter();
var result = converter.ConvertFromInvariantString("HorizontalGrid");
Assert.IsInstanceOf<GridItemsLayout>(result);
var gridItemsLayout = (GridItemsLayout)result;
Assert.AreEqual(ItemsLayoutOrientation.Horizontal, gridItemsLayout.Orientation);
Assert.AreEqual(1, gridItemsLayout.Span);
}
[Test]
public void VerticalGridShouldReturnGridItemsLayout()
{
var converter = new ItemsLayoutTypeConverter();
var result = converter.ConvertFromInvariantString("VerticalGrid");
Assert.IsInstanceOf<GridItemsLayout>(result);
var gridItemsLayout = (GridItemsLayout)result;
Assert.AreEqual(ItemsLayoutOrientation.Vertical, gridItemsLayout.Orientation);
Assert.AreEqual(1, gridItemsLayout.Span);
}
[Test]
public void HorizontalGridWithSpan4ShouldReturnGridItemsLayout()
{
var converter = new ItemsLayoutTypeConverter();
var result = converter.ConvertFromInvariantString("HorizontalGrid, 4");
Assert.IsInstanceOf<GridItemsLayout>(result);
var gridItemsLayout = (GridItemsLayout)result;
Assert.AreEqual(ItemsLayoutOrientation.Horizontal, gridItemsLayout.Orientation);
Assert.AreEqual(4, gridItemsLayout.Span);
}
[Test]
public void VerticalGridWithSpan2ShouldReturnGridItemsLayout()
{
var converter = new ItemsLayoutTypeConverter();
var result = converter.ConvertFromInvariantString("VerticalGrid,\t\t2");
Assert.IsInstanceOf<GridItemsLayout>(result);
var gridItemsLayout = (GridItemsLayout)result;
Assert.AreEqual(ItemsLayoutOrientation.Vertical, gridItemsLayout.Orientation);
Assert.AreEqual(2, gridItemsLayout.Span);
}
[Test]
public void HorizontalGridWithSpan987654ShouldReturnGridItemsLayout()
{
var converter = new ItemsLayoutTypeConverter();
var result = converter.ConvertFromInvariantString("HorizontalGrid,98654");
Assert.IsInstanceOf<GridItemsLayout>(result);
var gridItemsLayout = (GridItemsLayout)result;
Assert.AreEqual(ItemsLayoutOrientation.Horizontal, gridItemsLayout.Orientation);
Assert.AreEqual(98654, gridItemsLayout.Span);
}
[Test]
public void VerticalGridWithSpan1234ShouldReturnGridItemsLayout()
{
var converter = new ItemsLayoutTypeConverter();
var result = converter.ConvertFromInvariantString("VerticalGrid, \t 1234");
Assert.IsInstanceOf<GridItemsLayout>(result);
var gridItemsLayout = (GridItemsLayout)result;
Assert.AreEqual(ItemsLayoutOrientation.Vertical, gridItemsLayout.Orientation);
Assert.AreEqual(1234, gridItemsLayout.Span);
}
[Test]
public void HorizontalGridWithSpan0ShouldShouldThrowArgumentException()
{
var converter = new ItemsLayoutTypeConverter();
Assert.Throws<ArgumentException>(() => converter.ConvertFromInvariantString("HorizontalGrid, 0"));
}
[Test]
public void VerticalGridWithSpan0ShouldShouldThrowArgumentException()
{
var converter = new ItemsLayoutTypeConverter();
Assert.Throws<ArgumentException>(() => converter.ConvertFromInvariantString("VerticalGrid, 0"));
}
[Test]
public void HorizontalGridWithoutSpanShouldShouldThrowFormatException()
{
var converter = new ItemsLayoutTypeConverter();
Assert.Throws<InvalidOperationException>(() => converter.ConvertFromInvariantString("HorizontalGrid,"));
}
[Test]
public void VerticalGridWithoutSpanShouldShouldThrowFormatException()
{
var converter = new ItemsLayoutTypeConverter();
Assert.Throws<InvalidOperationException>(() => converter.ConvertFromInvariantString("VerticalGrid,"));
}
[Test]
public void HorizontalGridWithSpanIsNotStringShouldShouldThrowFormatException()
{
var converter = new ItemsLayoutTypeConverter();
Assert.Throws<FormatException>(() => converter.ConvertFromInvariantString("HorizontalGrid,test"));
}
[Test]
public void VerticalGridWithSpanIs1point5ShouldShouldThrowFormatException()
{
var converter = new ItemsLayoutTypeConverter();
Assert.Throws<FormatException>(() => converter.ConvertFromInvariantString("VerticalGrid, 1.5"));
}
[Test]
public void VerticalGridWith2ArgumentsShouldShouldThrowFormatException()
{
var converter = new ItemsLayoutTypeConverter();
Assert.Throws<FormatException>(() => converter.ConvertFromInvariantString("VerticalGrid, 2, 3"));
}
[Test]
public void HorizontalGridWithSemicolonShouldShouldThrowInvalidOperationException()
{
var converter = new ItemsLayoutTypeConverter();
Assert.Throws<InvalidOperationException>(() => converter.ConvertFromInvariantString("HorizontalGrid; 2"));
}
[Test]
public void LinearItemsLayoutShouldThrowInvalidOperationException()
{
var converter = new ItemsLayoutTypeConverter();
Assert.Throws<InvalidOperationException>(() => converter.ConvertFromInvariantString("LinearItemsLayout"));
}
[Test]
public void HorizontalListWithArgumentShouldShouldThrowInvalidOperationException()
{
var converter = new ItemsLayoutTypeConverter();
Assert.Throws<InvalidOperationException>(() => converter.ConvertFromInvariantString("HorizontalList, 1"));
}
[Test]
public void VerticalGridWithArgumentShouldShouldThrowInvalidOperationException()
{
var converter = new ItemsLayoutTypeConverter();
Assert.Throws<InvalidOperationException>(() => converter.ConvertFromInvariantString("VerticalList, 2"));
}
[Test]
public void EmptyStringShouldThrowInvalidOperationException()
{
var converter = new ItemsLayoutTypeConverter();
Assert.Throws<InvalidOperationException>(() => converter.ConvertFromInvariantString(string.Empty));
}
[Test]
public void NullShouldThrowArgumentNullException()
{
var converter = new ItemsLayoutTypeConverter();
Assert.Throws<ArgumentNullException>(() => converter.ConvertFromInvariantString(null));
}
}
}