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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;
namespace System.Windows.Forms.Tests;
public class ColumnHeaderCollectionTests
{
[WinFormsFact]
public void ColumnHeaderCollection_Ctor_ListView()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
Assert.Empty(collection);
}
[WinFormsFact]
public void ColumnHeaderCollection_Ctor_NullOwner_ThrowsArgumentNullException()
{
Assert.Throws<ArgumentNullException>("owner", () => new ListView.ColumnHeaderCollection(null));
}
[WinFormsFact]
public void ColumnHeaderCollection_IList_GetProperties_ReturnsExpected()
{
using ListView listView = new();
IList collection = new ListView.ColumnHeaderCollection(listView);
Assert.Equal(0, collection.Count);
Assert.False(collection.IsFixedSize);
Assert.False(collection.IsReadOnly);
Assert.True(collection.IsSynchronized);
Assert.Same(collection, collection.SyncRoot);
}
[WinFormsFact]
public void ColumnHeaderCollection_Item_GetValidIndex_ReturnsExpected()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
Assert.Same(header, collection[0]);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(1)]
public void ColumnHeaderCollection_Item_GetInvalidIndex_ThrowsArgumentOutOfRangeException(int index)
{
using ListView listView = new();
using ColumnHeader header = new();
var collection = new ListView.ColumnHeaderCollection(listView)
{
header
};
Assert.Throws<ArgumentOutOfRangeException>("index", () => collection[index]);
}
[WinFormsFact]
public void ColumnHeaderCollection_IListItem_GetValidIndex_ReturnsExpected()
{
using ListView listView = new();
IList collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
Assert.Same(header, collection[0]);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(1)]
public void ColumnHeaderCollection_IListItem_GetInvalidIndex_ThrowsArgumentOutOfRangeException(int index)
{
using ListView listView = new();
using ColumnHeader header = new();
IList collection = new ListView.ColumnHeaderCollection(listView)
{
header
};
Assert.Throws<ArgumentOutOfRangeException>("index", () => collection[index]);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(1)]
public void ColumnHeaderCollection_IListItem_Set_ThrowsNotSupportedException(int index)
{
using ListView listView = new();
using ColumnHeader header = new();
IList collection = new ListView.ColumnHeaderCollection(listView)
{
header
};
Assert.Throws<NotSupportedException>(() => collection[index] = new ColumnHeader());
}
[WinFormsTheory]
[InlineData(null, -1)]
[InlineData("", -1)]
[InlineData("longer", -1)]
[InlineData("sm", -1)]
[InlineData("text", 1)]
[InlineData("tsxt", -1)]
[InlineData("TEXT", 1)]
public void ColumnHeaderCollection_Item_GetString_ReturnsExpected(string key, int expectedIndex)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header1 = new();
using ColumnHeader header2 = new()
{
Name = "text"
};
collection.Add(header1);
collection.Add(header2);
Assert.Equal(expectedIndex != -1 ? collection[expectedIndex] : null, collection[key]);
}
[WinFormsFact]
public void ColumnHeaderCollection_Add_ColumnHeader_Success()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
Assert.Same(header, Assert.Single(collection));
Assert.Equal(listView, header.ListView);
Assert.Equal(0, header.Index);
Assert.Equal(0, header.DisplayIndex);
}
[WinFormsFact]
public void ColumnHeaderCollection_Add_ExistsInSameCollection_ThrowsArgumentException()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
Assert.Throws<ArgumentException>("ch", () => collection.Add(header));
}
[WinFormsFact]
public void ColumnHeaderCollection_Add_ExistsInOtherCollection_ThrowsArgumentException()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ListView otherListView = new();
var otherCollection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
otherCollection.Add(header);
Assert.Throws<ArgumentException>("ch", () => collection.Add(header));
}
[WinFormsTheory]
[NormalizedStringData]
public void ColumnHeaderCollection_Add_String_Success(string text, string expectedText)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView)
{
text
};
using ColumnHeader header = Assert.Single(collection.Cast<ColumnHeader>());
Assert.Equal(expectedText, header.Text);
Assert.Equal(listView, header.ListView);
}
public static IEnumerable<object[]> Add_String_Int_TestData()
{
yield return new object[] { null, -1, string.Empty };
yield return new object[] { string.Empty, 0, string.Empty };
yield return new object[] { "text", 1, "text" };
}
[WinFormsTheory]
[MemberData(nameof(Add_String_Int_TestData))]
public void ColumnHeaderCollection_Add_String_Int_Success(string text, int width, string expectedText)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView)
{
{ text, width }
};
using ColumnHeader header = Assert.Single(collection.Cast<ColumnHeader>());
Assert.Equal(expectedText, header.Text);
Assert.Equal(width, header.Width);
Assert.Equal(listView, header.ListView);
}
public static IEnumerable<object[]> Add_String_Int_HorizontalAlignment_TestData()
{
yield return new object[] { null, -1, HorizontalAlignment.Left, string.Empty };
yield return new object[] { string.Empty, 0, HorizontalAlignment.Center, string.Empty };
yield return new object[] { "text", 1, HorizontalAlignment.Right, "text" };
}
[WinFormsTheory]
[MemberData(nameof(Add_String_Int_HorizontalAlignment_TestData))]
public void ColumnHeaderCollection_Add_String_Int_HorizontalAlignment_Success(string text, int width, HorizontalAlignment textAlign, string expectedText)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView)
{
{ text, width, textAlign }
};
using ColumnHeader header = Assert.Single(collection.Cast<ColumnHeader>());
Assert.Equal(expectedText, header.Text);
Assert.Equal(width, header.Width);
Assert.Equal(textAlign, header.TextAlign);
Assert.Equal(listView, header.ListView);
}
public static IEnumerable<object[]> Add_String_String_TestData()
{
yield return new object[] { null, null, string.Empty, string.Empty };
yield return new object[] { string.Empty, string.Empty, string.Empty, string.Empty };
yield return new object[] { "name", "text", "name", "text" };
}
[WinFormsTheory]
[MemberData(nameof(Add_String_String_TestData))]
public void ColumnHeaderCollection_Add_String_String_Success(string name, string text, string expectedName, string expectedText)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView)
{
{ name, text }
};
using ColumnHeader header = Assert.Single(collection.Cast<ColumnHeader>());
Assert.Equal(expectedName, header.Name);
Assert.Equal(expectedText, header.Text);
Assert.Equal(listView, header.ListView);
}
public static IEnumerable<object[]> Add_String_String_Int_TestData()
{
yield return new object[] { null, null, -1, string.Empty, string.Empty };
yield return new object[] { string.Empty, string.Empty, 0, string.Empty, string.Empty };
yield return new object[] { "name", "text", 1, "name", "text" };
}
[WinFormsTheory]
[MemberData(nameof(Add_String_String_Int_TestData))]
public void ColumnHeaderCollection_Add_String_String_Int_Success(string name, string text, int width, string expectedName, string expectedText)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView)
{
{ name, text, width }
};
using ColumnHeader header = Assert.Single(collection.Cast<ColumnHeader>());
Assert.Equal(expectedName, header.Name);
Assert.Equal(expectedText, header.Text);
Assert.Equal(width, header.Width);
Assert.Equal(listView, header.ListView);
}
public static IEnumerable<object[]> Add_String_String_Int_HorizontalAlignment_Int_TestData()
{
yield return new object[] { null, null, -1, HorizontalAlignment.Left, -1, string.Empty, string.Empty };
yield return new object[] { string.Empty, string.Empty, 0, HorizontalAlignment.Center, 0, string.Empty, string.Empty };
yield return new object[] { "name", "text", 1, HorizontalAlignment.Right, 1, "name", "text" };
}
[WinFormsTheory]
[MemberData(nameof(Add_String_String_Int_HorizontalAlignment_Int_TestData))]
public void ColumnHeaderCollection_Add_String_String_Int_HorizontalAlignment_Int_Success(string name, string text, int width, HorizontalAlignment textAlign, int imageIndex, string expectedName, string expectedText)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView)
{
{ name, text, width, textAlign, imageIndex }
};
using ColumnHeader header = Assert.Single(collection.Cast<ColumnHeader>());
Assert.Equal(expectedName, header.Name);
Assert.Equal(expectedText, header.Text);
Assert.Equal(width, header.Width);
Assert.Equal(textAlign, header.TextAlign);
Assert.Equal(imageIndex, header.ImageIndex);
Assert.Equal(listView, header.ListView);
}
public static IEnumerable<object[]> Add_String_String_Int_HorizontalAlignment_String_TestData()
{
yield return new object[] { null, null, -1, HorizontalAlignment.Left, null, string.Empty, string.Empty, string.Empty };
yield return new object[] { string.Empty, string.Empty, 0, HorizontalAlignment.Center, string.Empty, string.Empty, string.Empty, string.Empty };
yield return new object[] { "name", "text", 1, HorizontalAlignment.Right, "imageKey", "name", "text", "imageKey" };
}
[WinFormsTheory]
[MemberData(nameof(Add_String_String_Int_HorizontalAlignment_String_TestData))]
public void ColumnHeaderCollection_Add_String_String_Int_HorizontalAlignment_String_Success(string name, string text, int width, HorizontalAlignment textAlign, string imageKey, string expectedName, string expectedText, string expectedImageKey)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView)
{
{ name, text, width, textAlign, imageKey }
};
using ColumnHeader header = Assert.Single(collection.Cast<ColumnHeader>());
Assert.Equal(expectedName, header.Name);
Assert.Equal(expectedText, header.Text);
Assert.Equal(width, header.Width);
Assert.Equal(textAlign, header.TextAlign);
Assert.Equal(expectedImageKey, header.ImageKey);
Assert.Equal(listView, header.ListView);
}
[WinFormsFact]
public void ColumnHeaderCollection_Add_NullItem_ThrowsArgumentNullException()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
Assert.Throws<ArgumentNullException>("ch", () => collection.Add((ColumnHeader)null));
}
[WinFormsTheory]
[InvalidEnumData<HorizontalAlignment>]
public void ColumnHeaderCollection_Add_InvalidTextAlign_ThrowsInvalidEnumArgumentException(HorizontalAlignment textAlign)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
Assert.Throws<InvalidEnumArgumentException>("value", () => collection.Add("text", 1, textAlign));
Assert.Throws<InvalidEnumArgumentException>("value", () => collection.Add("name", "text", 1, textAlign, "imageKey"));
Assert.Throws<InvalidEnumArgumentException>("value", () => collection.Add("name", "text", 1, textAlign, 1));
}
[WinFormsFact]
public void ColumnHeaderCollection_IList_Add_Success()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
Assert.Same(header, Assert.Single(collection));
Assert.Equal(listView, header.ListView);
}
[WinFormsTheory]
[InlineData(null)]
[InlineData("text")]
public void ColumnHeaderCollection_IListAdd_InvalidValue_ThrowsArgumentException(object value)
{
using ListView listView = new();
IList collection = new ListView.ColumnHeaderCollection(listView);
Assert.Throws<ArgumentException>("value", () => collection.Add(value));
}
[WinFormsFact]
public void ColumnHeaderCollection_AddRange_ColumnHeaderArray_Success()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header1 = new("text1");
using ColumnHeader header2 = new("text2");
var items = new ColumnHeader[] { header1, header2 };
collection.AddRange(items);
Assert.Equal(2, collection.Count);
Assert.Same(header1, collection[0]);
Assert.Same(header2, collection[1]);
Assert.Equal(0, header1.DisplayIndex);
Assert.Equal(1, header2.DisplayIndex);
}
[WinFormsFact]
public void ColumnHeaderCollection_AddRange_ColumnHeaderArrayWithDisplayIndex_Success()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header1 = new("text1")
{
DisplayIndex = 1
};
using ColumnHeader header2 = new("text2")
{
DisplayIndex = 0
};
using ColumnHeader header3 = new("text3")
{
DisplayIndex = 2
};
using ColumnHeader header4 = new("text4")
{
DisplayIndex = 2
};
using ColumnHeader header5 = new("text5")
{
DisplayIndex = 10
};
var items = new ColumnHeader[] { header1, header2, header3, header4, header5 };
collection.AddRange(items);
Assert.Equal(5, collection.Count);
Assert.Same(header1, collection[0]);
Assert.Same(header2, collection[1]);
Assert.Same(header3, collection[2]);
Assert.Same(header4, collection[3]);
Assert.Same(header5, collection[4]);
Assert.Equal(0, header1.DisplayIndex);
Assert.Equal(1, header2.DisplayIndex);
Assert.Equal(2, header3.DisplayIndex);
Assert.Equal(3, header4.DisplayIndex);
Assert.Equal(4, header5.DisplayIndex);
}
[WinFormsFact]
public void ColumnHeaderCollection_AddRange_NullValues_ThrowsArgumentNullException()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
Assert.Throws<ArgumentNullException>("values", () => collection.AddRange(null));
}
[WinFormsFact]
public void ColumnHeaderCollection_AddRange_NullValueInValues_ThrowsArgumentNullException()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
Assert.Throws<ArgumentNullException>("values", () => collection.AddRange([null]));
}
[WinFormsFact]
public void ColumnHeaderCollection_Clear_Invoke_Success()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
collection.Clear();
Assert.Empty(collection);
Assert.Null(header.ListView);
Assert.Equal(-1, header.Index);
Assert.Equal(0, header.DisplayIndex);
// Clear again.
collection.Clear();
Assert.Empty(collection);
Assert.Null(header.ListView);
Assert.Equal(-1, header.Index);
Assert.Equal(0, header.DisplayIndex);
}
[WinFormsFact]
public void ColumnHeaderCollection_Clear_InvokeWithHandle_Success()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
Assert.NotEqual(IntPtr.Zero, listView.Handle);
collection.Clear();
Assert.Empty(collection);
Assert.Null(header.ListView);
Assert.Equal(-1, header.Index);
Assert.Equal(0, header.DisplayIndex);
// Clear again.
collection.Clear();
Assert.Empty(collection);
Assert.Null(header.ListView);
Assert.Equal(-1, header.Index);
Assert.Equal(0, header.DisplayIndex);
}
[WinFormsFact]
public void ColumnHeaderCollection_Clear_InvokeTile_Success()
{
using ListView listView = new()
{
View = View.Tile
};
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
collection.Clear();
Assert.Empty(collection);
Assert.Null(header.ListView);
Assert.Equal(-1, header.Index);
Assert.Equal(0, header.DisplayIndex);
// Clear again.
collection.Clear();
Assert.Empty(collection);
Assert.Null(header.ListView);
Assert.Equal(-1, header.Index);
Assert.Equal(0, header.DisplayIndex);
}
[WinFormsFact]
public void ColumnHeaderCollection_Clear_InvokeTileWithHandle_Success()
{
using ListView listView = new()
{
View = View.Tile
};
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
Assert.NotEqual(IntPtr.Zero, listView.Handle);
collection.Clear();
Assert.Empty(collection);
Assert.Null(header.ListView);
Assert.Equal(-1, header.Index);
Assert.Equal(0, header.DisplayIndex);
// Clear again.
collection.Clear();
Assert.Empty(collection);
Assert.Null(header.ListView);
Assert.Equal(-1, header.Index);
Assert.Equal(0, header.DisplayIndex);
}
[WinFormsFact]
public void ColumnHeaderCollection_Clear_Empty_Success()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
collection.Clear();
Assert.Empty(collection);
}
[WinFormsFact]
public void ColumnHeaderCollection_Contains_Invoke_ReturnsExpected()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
Assert.True(collection.Contains(header));
Assert.False(collection.Contains(new ColumnHeader()));
Assert.False(collection.Contains(null));
}
[WinFormsFact]
public void ColumnHeaderCollection_Contains_Empty_ReturnsFalse()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
Assert.False(collection.Contains(new ColumnHeader()));
Assert.False(collection.Contains(null));
}
[WinFormsTheory]
[InlineData(null, false)]
[InlineData("", false)]
[InlineData("longer", false)]
[InlineData("sm", false)]
[InlineData("text", true)]
[InlineData("tsxt", false)]
[InlineData("TEXT", true)]
public void ColumnHeaderCollection_ContainsKey_Invoke_ReturnsExpected(string key, bool expected)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header1 = new();
using ColumnHeader header2 = new()
{
Name = "text"
};
collection.Add(header1);
collection.Add(header2);
Assert.Equal(expected, collection.ContainsKey(key));
}
[WinFormsFact]
public void ColumnHeaderCollection_ContainsKey_Empty_ReturnsFalse()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
Assert.False(collection.ContainsKey("text"));
Assert.False(collection.ContainsKey(null));
}
[WinFormsFact]
public void ColumnHeaderCollection_IListContains_Invoke_ReturnsExpected()
{
using ListView listView = new();
IList collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
Assert.True(collection.Contains(header));
Assert.False(collection.Contains(new ColumnHeader()));
Assert.False(collection.Contains(new object()));
Assert.False(collection.Contains(null));
}
[WinFormsFact]
public void ColumnHeaderCollection_IListContains_Empty_ReturnsFalse()
{
using ListView listView = new();
IList collection = new ListView.ColumnHeaderCollection(listView);
Assert.False(collection.Contains(new ColumnHeader()));
Assert.False(collection.Contains(new object()));
Assert.False(collection.Contains(null));
}
[WinFormsFact]
public void ColumnHeaderCollection_IndexOf_Invoke_ReturnsExpected()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
Assert.Equal(0, collection.IndexOf(header));
Assert.Equal(-1, collection.IndexOf(new ColumnHeader()));
Assert.Equal(-1, collection.IndexOf(null));
}
[WinFormsFact]
public void ColumnHeaderCollection_IndexOf_Empty_ReturnsFalse()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
Assert.Equal(-1, collection.IndexOf(new ColumnHeader()));
Assert.Equal(-1, collection.IndexOf(null));
}
[WinFormsTheory]
[InlineData(null, -1)]
[InlineData("", -1)]
[InlineData("longer", -1)]
[InlineData("sm", -1)]
[InlineData("text", 1)]
[InlineData("tsxt", -1)]
[InlineData("TEXT", 1)]
public void ColumnHeaderCollection_IndexOfKey_Invoke_ReturnsExpected(string key, int expected)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header1 = new();
using ColumnHeader header2 = new()
{
Name = "text"
};
collection.Add(header1);
collection.Add(header2);
Assert.Equal(expected, collection.IndexOfKey(key));
// Call again to validate caching behavior.
Assert.Equal(expected, collection.IndexOfKey(key));
Assert.Equal(-1, collection.IndexOfKey("noSuchKey"));
}
[WinFormsFact]
public void ColumnHeaderCollection_IndexOfKey_Empty_ReturnsFalse()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
Assert.Equal(-1, collection.IndexOfKey("text"));
Assert.Equal(-1, collection.IndexOf(null));
}
[WinFormsFact]
public void ColumnHeaderCollection_IListIndexOf_Invoke_ReturnsExpected()
{
using ListView listView = new();
IList collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
Assert.Equal(0, collection.IndexOf(header));
Assert.Equal(-1, collection.IndexOf(new ColumnHeader()));
Assert.Equal(-1, collection.IndexOf(new object()));
Assert.Equal(-1, collection.IndexOf(null));
}
[WinFormsFact]
public void ColumnHeaderCollection_IListIndexOf_Empty_ReturnsMinusOne()
{
using ListView listView = new();
IList collection = new ListView.ColumnHeaderCollection(listView);
Assert.Equal(-1, collection.IndexOf(new ColumnHeader()));
Assert.Equal(-1, collection.IndexOf(new object()));
Assert.Equal(-1, collection.IndexOf(null));
}
[WinFormsFact]
public void ColumnHeaderCollection_Insert_ColumnHeader_Success()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(new ColumnHeader());
collection.Insert(1, header);
Assert.Equal(2, collection.Count);
Assert.Same(header, collection[1]);
Assert.Same(listView, header.ListView);
}
[WinFormsTheory]
[NormalizedStringData]
public void ColumnHeaderCollection_Insert_String_Success(string text, string expectedText)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
collection.Insert(0, text);
using ColumnHeader header = Assert.Single(collection.Cast<ColumnHeader>());
Assert.Equal(expectedText, header.Text);
Assert.Equal(listView, header.ListView);
}
[WinFormsTheory]
[MemberData(nameof(Add_String_Int_TestData))]
public void ColumnHeaderCollection_Insert_String_Int_Success(string text, int width, string expectedText)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
collection.Insert(0, text, width);
using ColumnHeader header = Assert.Single(collection.Cast<ColumnHeader>());
Assert.Equal(expectedText, header.Text);
Assert.Equal(width, header.Width);
Assert.Equal(listView, header.ListView);
}
[WinFormsTheory]
[MemberData(nameof(Add_String_Int_HorizontalAlignment_TestData))]
public void ColumnHeaderCollection_Insert_String_Int_HorizontalAlignment_Success(string text, int width, HorizontalAlignment textAlign, string expectedText)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
collection.Insert(0, text, width, textAlign);
using ColumnHeader header = Assert.Single(collection.Cast<ColumnHeader>());
Assert.Equal(expectedText, header.Text);
Assert.Equal(width, header.Width);
Assert.Equal(textAlign, header.TextAlign);
Assert.Equal(listView, header.ListView);
}
[WinFormsTheory]
[MemberData(nameof(Add_String_String_TestData))]
public void ColumnHeaderCollection_Insert_String_String_Success(string name, string text, string expectedName, string expectedText)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
collection.Insert(0, name, text);
using ColumnHeader header = Assert.Single(collection.Cast<ColumnHeader>());
Assert.Equal(expectedName, header.Name);
Assert.Equal(expectedText, header.Text);
Assert.Equal(listView, header.ListView);
}
[WinFormsTheory]
[MemberData(nameof(Add_String_String_Int_TestData))]
public void ColumnHeaderCollection_Insert_String_String_Int_Success(string name, string text, int width, string expectedName, string expectedText)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
collection.Insert(0, name, text, width);
using ColumnHeader header = Assert.Single(collection.Cast<ColumnHeader>());
Assert.Equal(expectedName, header.Name);
Assert.Equal(expectedText, header.Text);
Assert.Equal(width, header.Width);
Assert.Equal(listView, header.ListView);
}
[WinFormsTheory]
[MemberData(nameof(Add_String_String_Int_HorizontalAlignment_Int_TestData))]
public void ColumnHeaderCollection_Insert_String_String_Int_HorizontalAlignment_Int_Success(string name, string text, int width, HorizontalAlignment textAlign, int imageIndex, string expectedName, string expectedText)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
collection.Insert(0, name, text, width, textAlign, imageIndex);
using ColumnHeader header = Assert.Single(collection.Cast<ColumnHeader>());
Assert.Equal(expectedName, header.Name);
Assert.Equal(expectedText, header.Text);
Assert.Equal(width, header.Width);
Assert.Equal(textAlign, header.TextAlign);
Assert.Equal(imageIndex, header.ImageIndex);
Assert.Equal(listView, header.ListView);
}
[WinFormsTheory]
[MemberData(nameof(Add_String_String_Int_HorizontalAlignment_String_TestData))]
public void ColumnHeaderCollection_Insert_String_String_Int_HorizontalAlignment_String_Success(string name, string text, int width, HorizontalAlignment textAlign, string imageKey, string expectedName, string expectedText, string expectedImageKey)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
collection.Insert(0, name, text, width, textAlign, imageKey);
using ColumnHeader header = Assert.Single(collection.Cast<ColumnHeader>());
Assert.Equal(expectedName, header.Name);
Assert.Equal(expectedText, header.Text);
Assert.Equal(width, header.Width);
Assert.Equal(textAlign, header.TextAlign);
Assert.Equal(expectedImageKey, header.ImageKey);
Assert.Equal(listView, header.ListView);
}
[WinFormsFact]
public void ColumnHeaderCollection_Insert_NullItem_ThrowsArgumentNullException()
{
using ListView listView = new();
using ColumnHeader header = new();
var collection = new ListView.ColumnHeaderCollection(listView)
{
header
};
Assert.Throws<ArgumentNullException>("ch", () => collection.Insert(1, (ColumnHeader)null));
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(1)]
public void ColumnHeaderCollection_Insert_InvalidIndex_ThrowsArgumentOutOfRangeException(int index)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
Assert.Throws<ArgumentOutOfRangeException>("index", () => collection.Insert(index, (ColumnHeader)null));
}
[WinFormsFact]
public void ColumnHeaderCollection_IListInsert_ColumnHeader_Success()
{
using ListView listView = new();
IList collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(new ColumnHeader());
collection.Insert(1, header);
Assert.Equal(2, collection.Count);
Assert.Same(header, collection[1]);
Assert.Same(listView, header.ListView);
}
[WinFormsTheory]
[InlineData(null)]
[InlineData("text")]
public void ColumnHeaderCollection_IListInsert_InvalidItem_Nop(object value)
{
using ListView listView = new();
IList collection = new ListView.ColumnHeaderCollection(listView);
collection.Insert(0, value);
Assert.Empty(collection);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(1)]
public void ColumnHeaderCollection_IListInsert_InvalidIndex_ThrowsArgumentOutOfRangeException(int index)
{
using ListView listView = new();
IList collection = new ListView.ColumnHeaderCollection(listView);
Assert.Throws<ArgumentOutOfRangeException>("index", () => collection.Insert(index, new ColumnHeader()));
}
[WinFormsFact]
public void ColumnHeaderCollection_Remove_ColumnHeader_Success()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
// Remove null.
collection.Remove(null);
Assert.Same(header, Assert.Single(collection));
collection.Remove(header);
Assert.Empty(collection);
Assert.Null(header.ListView);
Assert.Equal(-1, header.Index);
Assert.Equal(-1, header.DisplayIndex);
// Remove again.
collection.Remove(header);
Assert.Empty(collection);
Assert.Null(header.ListView);
Assert.Equal(-1, header.Index);
Assert.Equal(-1, header.DisplayIndex);
}
[WinFormsFact]
public void ColumnHeaderCollection_IListRemove_ColumnHeader_Success()
{
using ListView listView = new();
IList collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
collection.Remove(header);
Assert.Empty(collection);
Assert.Null(header.ListView);
Assert.Equal(-1, header.Index);
Assert.Equal(-1, header.DisplayIndex);
// Remove again.
collection.Remove(header);
Assert.Empty(collection);
Assert.Null(header.ListView);
Assert.Equal(-1, header.Index);
Assert.Equal(-1, header.DisplayIndex);
}
[WinFormsTheory]
[InlineData(null)]
[InlineData("text")]
public void ColumnHeaderCollection_IListRemove_InvalidItem_Nop(object value)
{
using ListView listView = new();
IList collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
collection.Remove(value);
Assert.Same(header, Assert.Single(collection));
}
[WinFormsFact]
public void ColumnHeaderCollection_RemoveAt_ValidIndex_Success()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
collection.Add(new ColumnHeader());
collection.Add(new ColumnHeader());
collection.Add(new ColumnHeader());
// Remove from start.
collection.RemoveAt(0);
Assert.Equal(3, collection.Count);
Assert.Equal(0, collection[0].DisplayIndex);
Assert.Equal(1, collection[1].DisplayIndex);
Assert.Equal(2, collection[2].DisplayIndex);
// Remove from middle.
collection.RemoveAt(1);
Assert.Equal(2, collection.Count);
Assert.Equal(0, collection[0].DisplayIndex);
Assert.Equal(1, collection[1].DisplayIndex);
// Remove from end.
collection.RemoveAt(1);
Assert.Single(collection);
Assert.Equal(0, collection[0].DisplayIndex);
// Remove only.
collection.RemoveAt(0);
Assert.Empty(collection);
Assert.Null(header.ListView);
}
[WinFormsFact]
public void ColumnHeaderCollection_RemoveAt_HasHandle_Success()
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
collection.Add(new ColumnHeader());
collection.Add(new ColumnHeader());
collection.Add(new ColumnHeader());
Assert.NotEqual(IntPtr.Zero, listView.Handle);
// Remove from start.
collection.RemoveAt(0);
Assert.Equal(3, collection.Count);
Assert.Equal(0, collection[0].DisplayIndex);
Assert.Equal(1, collection[1].DisplayIndex);
Assert.Equal(2, collection[2].DisplayIndex);
// Remove from middle.
collection.RemoveAt(1);
Assert.Equal(2, collection.Count);
Assert.Equal(0, collection[0].DisplayIndex);
Assert.Equal(1, collection[1].DisplayIndex);
// Remove from end.
collection.RemoveAt(1);
Assert.Single(collection);
Assert.Equal(0, collection[0].DisplayIndex);
// Remove only.
collection.RemoveAt(0);
Assert.Empty(collection);
Assert.Null(header.ListView);
}
[WinFormsFact]
public void ColumnHeaderCollection_RemoveAt_HasHandleWithTile_Success()
{
using ListView listView = new()
{
View = View.Tile
};
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
collection.Add(new ColumnHeader());
collection.Add(new ColumnHeader());
collection.Add(new ColumnHeader());
Assert.NotEqual(IntPtr.Zero, listView.Handle);
// Remove from start.
collection.RemoveAt(0);
Assert.Equal(3, collection.Count);
Assert.Equal(0, collection[0].DisplayIndex);
Assert.Equal(1, collection[1].DisplayIndex);
Assert.Equal(2, collection[2].DisplayIndex);
// Remove from middle.
collection.RemoveAt(1);
Assert.Equal(2, collection.Count);
Assert.Equal(0, collection[0].DisplayIndex);
Assert.Equal(1, collection[1].DisplayIndex);
// Remove from end.
collection.RemoveAt(1);
Assert.Single(collection);
Assert.Equal(0, collection[0].DisplayIndex);
// Remove only.
collection.RemoveAt(0);
Assert.Empty(collection);
Assert.Null(header.ListView);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(2)]
public void ColumnHeaderCollection_RemoveAt_InvalidIndex_ThrowsArgumentOutOfRangeException(int index)
{
using ListView listView = new();
using ColumnHeader header = new();
var collection = new ListView.ColumnHeaderCollection(listView)
{
header
};
Assert.Throws<ArgumentOutOfRangeException>("index", () => collection.RemoveAt(index));
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(1)]
public void ColumnHeaderCollection_RemoveAt_InvalidIndexEmpty_ThrowsArgumentOutOfRangeException(int index)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
Assert.Throws<ArgumentOutOfRangeException>("index", () => collection.RemoveAt(index));
}
[WinFormsTheory]
[InlineData(null, 1)]
[InlineData("", 1)]
[InlineData("longer", 1)]
[InlineData("sm", 1)]
[InlineData("text", 0)]
[InlineData("tsxt", 1)]
[InlineData("TEXT", 0)]
public void ColumnHeaderCollection_RemoveByKey_Invoke_Success(string key, int expectedCount)
{
using ListView listView = new();
var collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new()
{
Name = "text"
};
collection.Add(header);
collection.RemoveByKey(key);
Assert.Equal(expectedCount, collection.Count);
if (expectedCount == 0)
{
Assert.Null(header.ListView);
}
else
{
Assert.Same(listView, header.ListView);
}
}
[WinFormsFact]
public void ColumnHeaderCollection_CopyTo_NonEmpty_Success()
{
using ListView listView = new();
IList collection = new ListView.ColumnHeaderCollection(listView);
using ColumnHeader header = new();
collection.Add(header);
object[] array = [1, 2, 3];
collection.CopyTo(array, 1);
Assert.Equal([1, header, 3], array);
}
[WinFormsFact]
public void ColumnHeaderCollection_CopyTo_Empty_Nop()
{
using ListView listView = new();
IList collection = new ListView.ColumnHeaderCollection(listView);
object[] array = [1, 2, 3];
collection.CopyTo(array, 0);
Assert.Equal([1, 2, 3], array);
}
}
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