From a3648d177b90b6e9db9261de6497e4947b5b2909 Mon Sep 17 00:00:00 2001
From: "Leaf Shi (BEYONDSOFT CONSULTING INC)" <v-leafshi@microsoft.com>
Date: Wed, 17 Jul 2024 16:34:59 +0800
Subject: [PATCH] Add unit tests for ButtonBaseDesigner

---
 .../UnitTests/ButtonBaseDesignerTests.cs      | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 src/System.Windows.Forms.Design/tests/UnitTests/ButtonBaseDesignerTests.cs

diff --git a/src/System.Windows.Forms.Design/tests/UnitTests/ButtonBaseDesignerTests.cs b/src/System.Windows.Forms.Design/tests/UnitTests/ButtonBaseDesignerTests.cs
new file mode 100644
index 00000000000..f766908794c
--- /dev/null
+++ b/src/System.Windows.Forms.Design/tests/UnitTests/ButtonBaseDesignerTests.cs
@@ -0,0 +1,54 @@
+// 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;
+
+namespace System.Windows.Forms.Design.Tests;
+
+public class ButtonBaseDesignerTests
+{
+    [Fact]
+    public void ButtonBaseDesigner_Constructor_Initialize_AutoResizeHandles()
+    {
+        using ButtonBaseDesigner buttonBaseDesigner = new();
+        bool autoResizeHandles = buttonBaseDesigner.AutoResizeHandles;
+
+        buttonBaseDesigner.Should().NotBeNull();
+        autoResizeHandles.Should().Be(true);
+    }
+
+    public static IEnumerable<object[]> IDictionary_TestData()
+    {
+        yield return new object[] { null };
+        yield return new object[] { new Dictionary<string, object>() };
+    }
+
+    [Theory]
+    [MemberData(nameof(IDictionary_TestData))]
+    public void ButtonBaseDesigner_InitializeNewComponent_WithDefaultButton(IDictionary defaultValues)
+    {
+        using ButtonBaseDesigner buttonBaseDesigner = new();
+        using Button button = new();
+        buttonBaseDesigner.Initialize(button);
+
+        buttonBaseDesigner.InitializeNewComponent(defaultValues);
+    }
+
+    [Theory]
+    [MemberData(nameof(IDictionary_TestData))]
+    public void ButtonBaseDesigner_InitializeNewComponent_NotInitialized(IDictionary defaultValues)
+    {
+        using ButtonBaseDesigner buttonBaseDesigner = new();
+        Assert.Throws<InvalidOperationException>(() => buttonBaseDesigner.InitializeNewComponent(defaultValues));
+    }
+
+    [Fact]
+    public void ButtonBaseDesigner_SnapLinesWithDefaultButton_ShouldReturnExpectedCount()
+    {
+        using ButtonBaseDesigner buttonBaseDesigner = new();
+        using Button button = new();
+        buttonBaseDesigner.Initialize(button);
+
+        buttonBaseDesigner.SnapLines.Count.Should().Be(9);
+    }
+}