public void Build_DisplayNameIsNameWithDots_NameComparisonPrefixMatch()
    {
        // Arrange
        var tagHelperBuilder       = new DefaultTagHelperDescriptorBuilder(TagHelperConventions.DefaultKind, "TestTagHelper", "Test");
        var tagMatchingRuleBuilder = new DefaultTagMatchingRuleDescriptorBuilder(tagHelperBuilder);
        var builder = new DefaultRequiredAttributeDescriptorBuilder(tagMatchingRuleBuilder);

        builder
        .Name("asp-route-")
        .NameComparisonMode(RequiredAttributeDescriptor.NameComparisonMode.PrefixMatch);

        // Act
        var descriptor = builder.Build();

        // Assert
        Assert.Equal("asp-route-...", descriptor.DisplayName);
    }