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Zheng-Li01Zheng-Li01
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Add code coverage for ButtonFlatAdapter (#13743)
* Add code coverage for ButtonFlatAdapter
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‎src/test/unit/System.Windows.Forms/System/Windows/Forms/ButtonFlatAdapterTests.cs‎

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// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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using System.Drawing;
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using System.Windows.Forms.ButtonInternal;
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namespace System.Windows.Forms.Tests;
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public class ButtonFlatAdapterTests : IDisposable
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{
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public TestButtonBase buttonBase { get; }
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internal ButtonFlatAdapter buttonFlatAdapter { get; }
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public ButtonFlatAdapterTests()
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{
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buttonBase = new TestButtonBase();
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buttonFlatAdapter = new(buttonBase);
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}
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public void Dispose() => buttonBase.Dispose();
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public class TestButtonBase : ButtonBase
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{
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public Rectangle ClientRectangleValue { get; set; } = new(0, 0, 100, 30);
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internal override Rectangle OverChangeRectangle => ClientRectangleValue;
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internal override ButtonBaseAdapter CreateStandardAdapter() => new ButtonFlatAdapter(this);
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internal override StringFormat CreateStringFormat() => new();
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internal override TextFormatFlags CreateTextFormatFlags() => TextFormatFlags.Default;
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}
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public static TheoryData<CheckState> PaintStates => new()
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{
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CheckState.Unchecked,
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CheckState.Checked,
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CheckState.Indeterminate
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};
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[WinFormsTheory]
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[MemberData(nameof(PaintStates))]
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public void PaintUp_DoesNotThrow(CheckState state)
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{
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using Bitmap bitmap = new(100, 30);
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using Graphics graphics = Graphics.FromImage(bitmap);
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using PaintEventArgs e = new(graphics, new Rectangle(0, 0, 100, 30));
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Exception? exception = Record.Exception(() => buttonFlatAdapter.PaintUp(e, state));
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exception.Should().BeNull();
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}
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[WinFormsTheory]
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[MemberData(nameof(PaintStates))]
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public void PaintDown_DoesNotThrow(CheckState state)
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{
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using Bitmap bitmap = new(100, 30);
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using Graphics graphics = Graphics.FromImage(bitmap);
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using PaintEventArgs e = new(graphics, new Rectangle(0, 0, 100, 30));
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Exception? exception = Record.Exception(() => buttonFlatAdapter.PaintDown(e, state));
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exception.Should().BeNull();
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}
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[WinFormsTheory]
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[MemberData(nameof(PaintStates))]
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public void PaintOver_DoesNotThrow(CheckState state)
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{
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using Bitmap bitmap = new(100, 30);
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using Graphics graphics = Graphics.FromImage(bitmap);
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using PaintEventArgs e = new(graphics, new Rectangle(0, 0, 100, 30));
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Exception? exception = Record.Exception(() => buttonFlatAdapter.PaintOver(e, state));
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exception.Should().BeNull();
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}
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[WinFormsTheory]
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[MemberData(nameof(PaintStates))]
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public void PaintUp_WithCustomBorder_DoesNotThrow(CheckState state)
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{
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using TestButtonBase button = new();
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button.FlatAppearance.BorderSize = 2;
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button.FlatAppearance.BorderColor = Color.Red;
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ButtonFlatAdapter buttonFlatAdapter = new(button);
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using Bitmap bitmap = new(100, 30);
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using Graphics graphics = Graphics.FromImage(bitmap);
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using PaintEventArgs e = new(graphics, new Rectangle(0, 0, 100, 30));
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Exception? exception = Record.Exception(() => buttonFlatAdapter.PaintUp(e, state));
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exception.Should().BeNull();
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}
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[WinFormsTheory]
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[MemberData(nameof(PaintStates))]
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public void PaintDown_WithMouseDownBackColor_DoesNotThrow(CheckState state)
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{
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using TestButtonBase button = new();
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button.FlatAppearance.MouseDownBackColor = Color.Blue;
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ButtonFlatAdapter buttonFlatAdapter = new(button);
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using Bitmap bitmap = new(100, 30);
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using Graphics graphics = Graphics.FromImage(bitmap);
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using PaintEventArgs e = new(graphics, new Rectangle(0, 0, 100, 30));
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Exception? exception = Record.Exception(() => buttonFlatAdapter.PaintDown(e, state));
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exception.Should().BeNull();
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}
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[WinFormsTheory]
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[MemberData(nameof(PaintStates))]
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public void PaintOver_WithMouseOverBackColor_DoesNotThrow(CheckState state)
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{
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using TestButtonBase button = new();
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button.FlatAppearance.MouseOverBackColor = Color.Green;
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ButtonFlatAdapter buttonFlatAdapter = new(button);
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using Bitmap bitmap = new(100, 30);
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using Graphics graphics = Graphics.FromImage(bitmap);
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using PaintEventArgs e = new(graphics, new Rectangle(0, 0, 100, 30));
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Exception? exception = Record.Exception(() => buttonFlatAdapter.PaintOver(e, state));
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exception.Should().BeNull();
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}
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[WinFormsTheory]
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[MemberData(nameof(PaintStates))]
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public void PaintUp_WithCheckedBackColor_DoesNotThrow(CheckState state)
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{
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using TestButtonBase button = new();
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button.FlatAppearance.CheckedBackColor = Color.Yellow;
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ButtonFlatAdapter buttonFlatAdapter = new(button);
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using Bitmap bitmap = new(100, 30);
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using Graphics graphics = Graphics.FromImage(bitmap);
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using PaintEventArgs e = new(graphics, new Rectangle(0, 0, 100, 30));
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Exception? exception = Record.Exception(() => buttonFlatAdapter.PaintUp(e, state));
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exception.Should().BeNull();
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}
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[WinFormsTheory]
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[BoolData]
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public void PaintUp_WithIsDefault_DoesNotThrow(bool isDefault)
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{
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using TestButtonBase button = new();
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button.IsDefault = isDefault;
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ButtonFlatAdapter buttonFlatAdapter = new(button);
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using Bitmap bitmap = new(100, 30);
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using Graphics graphics = Graphics.FromImage(bitmap);
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using PaintEventArgs e = new(graphics, new Rectangle(0, 0, 100, 30));
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Exception? exception = Record.Exception(() => buttonFlatAdapter.PaintUp(e, CheckState.Unchecked));
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exception.Should().BeNull();
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}
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[Fact]
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public void PaintFlatLayout_SetsProperties_Correctly_WhenUpIsFalse()
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{
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Rectangle clientRectangle = new(0, 0, 50, 20);
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Padding padding = new(1, 2, 3, 4);
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using Font font = new("Segoe UI", 9);
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string text = "CombinedTest";
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bool enabled = true;
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ContentAlignment textAlign = ContentAlignment.TopLeft;
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RightToLeft rightToLeft = RightToLeft.No;
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ButtonBaseAdapter.LayoutOptions layoutOptionsTrue = ButtonFlatAdapter.PaintFlatLayout(
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up: false,
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check: true,
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borderSize: 2,
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clientRectangle,
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padding,
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isDefault: false,
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font,
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text,
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enabled,
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textAlign,
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rightToLeft);
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ButtonBaseAdapter.LayoutOptions layoutOptionsFalse = ButtonFlatAdapter.PaintFlatLayout(
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up: false,
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check: false,
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borderSize: 2,
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clientRectangle,
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padding,
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isDefault: false,
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font,
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text,
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enabled,
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textAlign,
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rightToLeft);
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layoutOptionsTrue.PaddingSize.Should().Be(1);
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layoutOptionsFalse.PaddingSize.Should().Be(2);
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layoutOptionsTrue.FocusOddEvenFixup.Should().BeFalse();
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layoutOptionsFalse.FocusOddEvenFixup.Should().BeFalse();
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layoutOptionsTrue.BorderSize.Should().Be(3);
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layoutOptionsFalse.BorderSize.Should().Be(2);
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}
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[Theory]
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[BoolData]
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public void PaintFlatLayout_SetsTextOffset_Correctly(bool up)
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{
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Rectangle clientRectangle = new(0, 0, 50, 20);
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Padding padding = new(1, 2, 3, 4);
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using Font font = new("Segoe UI", 9);
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string text = "TextOffsetTest";
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bool enabled = true;
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ContentAlignment textAlign = ContentAlignment.TopLeft;
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RightToLeft rightToLeft = RightToLeft.No;
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ButtonBaseAdapter.LayoutOptions layoutOptions = ButtonFlatAdapter.PaintFlatLayout(
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up,
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check: false,
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borderSize: 2,
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clientRectangle,
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padding,
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isDefault: false,
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font,
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text,
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enabled,
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textAlign,
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rightToLeft);
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layoutOptions.TextOffset.Should().Be(!up);
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}
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}

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