test(Scss): fix variable check test (#6815)

Author: ArgoZhang

test/UniTest.Sass/VariableTest.cs

@@ -7,15 +7,8 @@
 
 namespace UniTest.Sass;
 
-public partial class VariableTest
+public partial class VariableTest(ITestOutputHelper testOutputHelper)
 {
-    private ITestOutputHelper _outputHelper;
-
-    public VariableTest(ITestOutputHelper testOutputHelper)
-    {
-        _outputHelper = testOutputHelper;
-    }
-
     [Fact]
     public void Variable_Ok()
     {
@@ -24,7 +17,7 @@ public void Variable_Ok()
         var sassFilePath = Path.Combine(rootPath, "Components");
         Assert.True(Directory.Exists(sassFilePath));
 
-        var variableFile = Path.Combine(rootPath, "wwwroot/scss/theme/bootstrapblazor.scss");
+        var variableFile = Path.Combine(rootPath, "wwwroot/scss/variables.scss");
         Assert.True(File.Exists(variableFile));
 
         // 获取所有 Sass 文件所有变量
@@ -53,7 +46,7 @@ void ValidateVariable(string scssFile, List<string> variables)
 
                     // #{$alert-icon-margin-right}
                     var matches = regex.Matches(item);
-                    if (matches.Any())
+                    if (matches.Count != 0)
                     {
                         var v = matches.Where(i => !variables.Contains(i.Groups[1].Value)).Select(i => i.Groups[1].Value);
                         if (v.Any())
@@ -72,7 +65,7 @@ void CheckMixVariable(string item)
                 var matches = mixRegex.Matches(item);
                 if (item.Contains("@mixin "))
                 {
-                    if (matches.Any())
+                    if (matches.Count != 0)
                     {
                         var groups = matches[0];
                         for (int index = 1; index < groups.Groups.Count; index++)