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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;
using System.Globalization;
using Moq;
using System.Windows.Forms.TestUtilities;
namespace System.Windows.Forms.Tests;
// NB: doesn't require thread affinity
public class PaddingConverterTests
{
[Theory]
[CommonMemberData(typeof(CommonTestHelper), nameof(CommonTestHelper.GetConvertFromTheoryData))]
[InlineData(typeof(Padding), false)]
[InlineData(typeof(string), true)]
public void PaddingConverter_CanConvertFrom_Invoke_ReturnsExpected(Type sourceType, bool expected)
{
PaddingConverter converter = new();
Assert.Equal(expected, converter.CanConvertFrom(sourceType));
}
public static IEnumerable<object[]> ConvertFrom_TestData()
{
yield return new object[] { "1,2,3,4", new Padding(1, 2, 3, 4) };
yield return new object[] { " 1 , 1, 1, 1 ", new Padding(1) };
yield return new object[] { " ", null };
yield return new object[] { string.Empty, null };
}
[Theory]
[UseDefaultXunitCulture]
[MemberData(nameof(ConvertFrom_TestData))]
public void PaddingConverter_ConvertFrom_String_ReturnsExpected(string value, object expected)
{
PaddingConverter converter = new();
Assert.Equal(expected, converter.ConvertFrom(value));
Assert.Equal(expected, converter.ConvertFrom(null, null, value));
Assert.Equal(expected, converter.ConvertFrom(null, CultureInfo.InvariantCulture, value));
}
[Theory]
[InlineData(1)]
[InlineData(null)]
public void PaddingConverter_ConvertFrom_InvalidValue_ThrowsNotSupportedException(object value)
{
PaddingConverter converter = new();
Assert.Throws<NotSupportedException>(() => converter.ConvertFrom(value));
}
[Theory]
[InlineData("1,2,3")]
[InlineData("1,2,3,4,5")]
public void PaddingConverter_ConvertFrom_InvalidString_ThrowsArgumentException(string value)
{
PaddingConverter converter = new();
Assert.Throws<ArgumentException>("value", () => converter.ConvertFrom(value));
}
[Theory]
[InlineData(typeof(string), true)]
[InlineData(typeof(InstanceDescriptor), true)]
[InlineData(typeof(TableLayoutPanelCellPosition), false)]
[InlineData(typeof(int), false)]
[InlineData(null, false)]
public void PaddingConverter_CanConvertTo_Invoke_ReturnsExpected(Type destinationType, bool expected)
{
PaddingConverter converter = new();
Assert.Equal(expected, converter.CanConvertTo(destinationType));
}
[Fact]
[UseDefaultXunitCulture]
public void PaddingConverter_ConvertTo_String_ReturnsExpected()
{
PaddingConverter converter = new();
Assert.Equal("1, 2, 3, 4", converter.ConvertTo(new Padding(1, 2, 3, 4), typeof(string)));
Assert.Equal("1, 2, 3, 4", converter.ConvertTo(null, null, new Padding(1, 2, 3, 4), typeof(string)));
Assert.Equal("1, 2, 3, 4", converter.ConvertTo(null, CultureInfo.InvariantCulture, new Padding(1, 2, 3, 4), typeof(string)));
}
[Fact]
public void PaddingConverter_ConvertTo_InstanceDescriptor_ReturnsExpected()
{
PaddingConverter converter = new();
InstanceDescriptor descriptor = Assert.IsType<InstanceDescriptor>(converter.ConvertTo(new Padding(1, 2, 3, 4), typeof(InstanceDescriptor)));
Assert.Equal(typeof(Padding).GetConstructor([typeof(int), typeof(int), typeof(int), typeof(int)]), descriptor.MemberInfo);
Assert.Equal(new object[] { 1, 2, 3, 4 }, descriptor.Arguments);
}
[Fact]
public void PaddingConverter_ConvertTo_InstanceDescriptorAll_ReturnsExpected()
{
PaddingConverter converter = new();
InstanceDescriptor descriptor = Assert.IsType<InstanceDescriptor>(converter.ConvertTo(new Padding(1, 1, 1, 1), typeof(InstanceDescriptor)));
Assert.Equal(typeof(Padding).GetConstructor([typeof(int)]), descriptor.MemberInfo);
Assert.Equal(new object[] { 1 }, descriptor.Arguments);
}
[Fact]
public void PaddingConverter_ConvertTo_NullDestinationType_ThrowsArgumentNullException()
{
PaddingConverter converter = new();
Assert.Throws<ArgumentNullException>("destinationType", () => converter.ConvertTo(new object(), null));
}
[Fact]
public void PaddingConverter_ConvertTo_ValueNotPadding_ThrowsNotSupportedException()
{
PaddingConverter converter = new();
Assert.Throws<NotSupportedException>(() => converter.ConvertTo(1, typeof(InstanceDescriptor)));
}
[Theory]
[InlineData(typeof(Padding))]
[InlineData(typeof(int))]
public void PaddingConverter_ConvertTo_InvalidDestinationType_ThrowsNotSupportedException(Type destinationType)
{
PaddingConverter converter = new();
Assert.Throws<NotSupportedException>(() => converter.ConvertTo(new Padding(), destinationType));
}
public static IEnumerable<object[]> CreateInstance_TestData()
{
yield return new object[] { new Padding(1), 1, new Padding(1, 2, 3, 4) };
yield return new object[] { new Padding(1), 2, new Padding(2) };
yield return new object[] { new Padding(1, 2, 3, 4), -1, new Padding(1, 2, 3, 4) };
yield return new object[] { new Padding(1, 2, 3, 4), 1, new Padding(1) };
}
[Theory]
[MemberData(nameof(CreateInstance_TestData))]
public void PaddingConverter_CreateInstance_ValidPropertyValuesAll_ReturnsExpected(Padding instance, int all, Padding result)
{
PaddingConverter converter = new();
Mock<ITypeDescriptorContext> mockContext = new(MockBehavior.Strict);
mockContext
.Setup(c => c.Instance)
.Returns(new ClassWithPadding { Padding = instance });
mockContext
.Setup(c => c.PropertyDescriptor)
.Returns(TypeDescriptor.GetProperties(typeof(ClassWithPadding))[0]);
Padding padding = Assert.IsType<Padding>(converter.CreateInstance(
mockContext.Object, new Dictionary<string, object>
{
{ nameof(Padding.All), all },
{ nameof(Padding.Left), 1 },
{ nameof(Padding.Top), 2 },
{ nameof(Padding.Right), 3 },
{ nameof(Padding.Bottom), 4 }
}));
Assert.Equal(result, padding);
}
[Fact]
public void PaddingConverter_CreateInstance_ValidPropertyValuesNullContext_ReturnsExpected()
{
PaddingConverter converter = new();
Padding expected = new(1, 2, 3, 4);
Padding padding = Assert.IsType<Padding>(converter.CreateInstance(
null, new Dictionary<string, object>
{
{ nameof(Padding.All), expected.All },
{ nameof(Padding.Left), expected.Left },
{ nameof(Padding.Top), expected.Top },
{ nameof(Padding.Right), expected.Right },
{ nameof(Padding.Bottom), expected.Bottom }
}));
Assert.Equal(expected, padding);
}
[Fact]
public void PaddingConverter_CreateInstance_NullPropertyValues_ThrowsArgumentNullException()
{
PaddingConverter converter = new();
Assert.Throws<ArgumentNullException>("propertyValues", () => converter.CreateInstance(new Mock<ITypeDescriptorContext>(MockBehavior.Strict).Object, null));
}
public static IEnumerable<object[]> CreateInstance_InvalidPropertyValueType_TestData()
{
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.All), new object() },
{ nameof(Padding.Left), 2 },
{ nameof(Padding.Top), 2 },
{ nameof(Padding.Right), 3 },
{ nameof(Padding.Bottom), 4 }
}
};
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.All), null },
{ nameof(Padding.Left), 2 },
{ nameof(Padding.Top), 2 },
{ nameof(Padding.Right), 3 },
{ nameof(Padding.Bottom), 4 }
}
};
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.Left), 2 },
{ nameof(Padding.Top), 2 },
{ nameof(Padding.Right), 3 },
{ nameof(Padding.Bottom), 4 }
}
};
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.All), 1 },
{ nameof(Padding.Left), new object() },
{ nameof(Padding.Top), 2 },
{ nameof(Padding.Right), 3 },
{ nameof(Padding.Bottom), 4 }
}
};
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.All), 1 },
{ nameof(Padding.Left), null },
{ nameof(Padding.Top), 2 },
{ nameof(Padding.Right), 3 },
{ nameof(Padding.Bottom), 4 }
}
};
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.All), 1 },
{ nameof(Padding.Top), 2 },
{ nameof(Padding.Right), 3 },
{ nameof(Padding.Bottom), 4 }
}
};
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.All), 1 },
{ nameof(Padding.Left), 2 },
{ nameof(Padding.Top), new object() },
{ nameof(Padding.Right), 3 },
{ nameof(Padding.Bottom), 4 }
}
};
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.All), 1 },
{ nameof(Padding.Left), 2 },
{ nameof(Padding.Top), null },
{ nameof(Padding.Right), 3 },
{ nameof(Padding.Bottom), 4 }
}
};
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.All), 1 },
{ nameof(Padding.Left), 2 },
{ nameof(Padding.Right), 3 },
{ nameof(Padding.Bottom), 4 }
}
};
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.All), 1 },
{ nameof(Padding.Left), 2 },
{ nameof(Padding.Top), 2 },
{ nameof(Padding.Right), new object() },
{ nameof(Padding.Bottom), 4 }
}
};
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.All), 1 },
{ nameof(Padding.Left), 2 },
{ nameof(Padding.Top), 2 },
{ nameof(Padding.Right), null },
{ nameof(Padding.Bottom), 4 }
}
};
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.All), 1 },
{ nameof(Padding.Left), 2 },
{ nameof(Padding.Top), 2 },
{ nameof(Padding.Bottom), 4 }
}
};
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.All), 1 },
{ nameof(Padding.Left), 2 },
{ nameof(Padding.Top), 2 },
{ nameof(Padding.Right), 3 },
{ nameof(Padding.Bottom), new object() }
}
};
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.All), 1 },
{ nameof(Padding.Left), 2 },
{ nameof(Padding.Top), 2 },
{ nameof(Padding.Right), 3 },
{ nameof(Padding.Bottom), null }
}
};
yield return new object[]
{
new Dictionary<string, object>
{
{ nameof(Padding.All), 1 },
{ nameof(Padding.Left), 2 },
{ nameof(Padding.Top), 2 },
{ nameof(Padding.Right), 3 }
}
};
}
[Theory]
[MemberData(nameof(CreateInstance_InvalidPropertyValueType_TestData))]
public void PaddingConverter_CreateInstance_InvalidPropertyValueType_ThrowsArgumentException(IDictionary propertyValues)
{
PaddingConverter converter = new();
Mock<ITypeDescriptorContext> mockContext = new(MockBehavior.Strict);
mockContext
.Setup(c => c.Instance)
.Returns(new ClassWithPadding { Padding = new(1) });
mockContext
.Setup(c => c.PropertyDescriptor)
.Returns(TypeDescriptor.GetProperties(typeof(ClassWithPadding))[0]);
Assert.Throws<ArgumentException>("propertyValues", () => converter.CreateInstance(mockContext.Object, propertyValues));
}
[Fact]
public void PaddingConverter_CreateInstance_UnknownInstanceType_ReturnsExpected()
{
PaddingConverter converter = new();
Mock<ITypeDescriptorContext> mockContext = new(MockBehavior.Strict);
mockContext
.Setup(c => c.Instance)
.Returns("abc");
mockContext
.Setup(c => c.PropertyDescriptor)
.Returns(TypeDescriptor.GetProperties(typeof(string))[0]);
var propertyValues = new Dictionary<string, object>
{
{ nameof(Padding.All), 1 },
{ nameof(Padding.Left), 2 },
{ nameof(Padding.Top), 2 },
{ nameof(Padding.Right), 3 },
{ nameof(Padding.Bottom), 4 },
};
Padding expected = new(2, 2, 3, 4);
Padding padding = Assert.IsType<Padding>(converter.CreateInstance(mockContext.Object, propertyValues));
Assert.Equal(expected, padding);
}
[Fact]
public void PaddingConverter_GetCreateInstanceSupported_Invoke_ReturnsTrue()
{
PaddingConverter converter = new();
Assert.True(converter.GetCreateInstanceSupported());
}
[Fact]
public void PaddingConverter_GetProperties_Invoke_ReturnsExpected()
{
PaddingConverter converter = new();
PropertyDescriptorCollection properties = converter.GetProperties(null);
Assert.Equal(5, properties.Count);
Assert.Equal(nameof(Padding.All), properties[0].Name);
Assert.Equal(nameof(Padding.Left), properties[1].Name);
Assert.Equal(nameof(Padding.Top), properties[2].Name);
Assert.Equal(nameof(Padding.Right), properties[3].Name);
Assert.Equal(nameof(Padding.Bottom), properties[4].Name);
}
[Fact]
public void PaddingConverter_GetPropertiesSupported_Invoke_ReturnsTrue()
{
PaddingConverter converter = new();
Assert.True(converter.GetPropertiesSupported());
}
private class ClassWithPadding
{
public Padding Padding { get; set; }
}
}
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