test(BootstrapInputGroupLabel): add ChildContent unit test (#5910)

Author: ArgoZhang

test/UnitTest/Components/InputTest.cs

@@ -324,6 +324,22 @@ public void InputGroup_Width()
         cut.MarkupMatches("<div class=\"input-group\"><div class=\"input-group-text\" required=\"true\" style=\"--bb-input-group-label-width: 120px;\"><span>BootstrapInputGroup</span></div></div>");
     }
 
+    [Fact]
+    public void InputGroup_ChildContent()
+    {
+        var cut = Context.RenderComponent<BootstrapInputGroup>(builder =>
+        {
+            builder.Add(s => s.ChildContent, new RenderFragment(builder =>
+            {
+                builder.OpenComponent<BootstrapInputGroupLabel>(0);
+                builder.AddAttribute(1, nameof(BootstrapInputGroupLabel.ChildContent), new RenderFragment(builder => builder.AddContent(0, "child-content")));
+                builder.CloseComponent();
+            }));
+        });
+
+        cut.Contains("child-content");
+    }
+
     [Theory]
     [InlineData(Alignment.Center, "center")]
     [InlineData(Alignment.Right, "end")]