Reorganize test cases

Author: FloEdelmann

tests/lib/rules/comma-style.js

@@ -12,11 +12,6 @@ const tester = new RuleTester({
   languageOptions: { parser: require('vue-eslint-parser'), ecmaVersion: 2018 }
 })
 
-const isOldStylistic =
-  eslintStylisticVersion === undefined ||
-  semver.lt(eslintStylisticVersion, '3.0.0') ||
-  semver.satisfies(process.version, '<19.0.0 || ^21.0.0')
-
 tester.run('comma-style', rule, {
   valid: [
     `<template>
@@ -41,17 +36,6 @@ tester.run('comma-style', rule, {
         </template>`,
       options: ['first', { exceptions: { ArrowFunctionExpression: false } }]
     },
-    ...(isOldStylistic
-      ? [
-          `
-      <template>
-        <CustomButton v-slot="a,
-          b
-          ,c" />
-      </template>
-    `
-        ]
-      : []),
     {
       code: `
         <template>
@@ -63,35 +47,6 @@ tester.run('comma-style', rule, {
     }
   ],
   invalid: [
-    ...(isOldStylistic
-      ? []
-      : [
-          {
-            code: `
-        <template>
-          <CustomButton v-slot="a,
-            b
-            ,c" />
-        </template>
-      `,
-            output: `
-        <template>
-          <CustomButton v-slot="a,
-            b,
-            c" />
-        </template>
-      `,
-            errors: [
-              {
-                message: "',' should be placed last.",
-                line: 5,
-                column: 13,
-                endLine: 5,
-                endColumn: 14
-              }
-            ]
-          }
-        ]),
     {
       code: `
         <template>
@@ -213,3 +168,53 @@ tester.run('comma-style', rule, {
     }
   ]
 })
+
+if (
+  eslintStylisticVersion === undefined ||
+  semver.lt(eslintStylisticVersion, '3.0.0') ||
+  semver.satisfies(process.version, '<19.0.0 || ^21.0.0')
+) {
+  tester.run('comma-style', rule, {
+    valid: [
+      `
+      <template>
+        <CustomButton v-slot="a,
+          b
+          ,c" />
+      </template>
+    `
+    ],
+    invalid: []
+  })
+} else {
+  tester.run('comma-style', rule, {
+    valid: [],
+    invalid: [
+      {
+        code: `
+        <template>
+          <CustomButton v-slot="a,
+            b
+            ,c" />
+        </template>
+      `,
+        output: `
+        <template>
+          <CustomButton v-slot="a,
+            b,
+            c" />
+        </template>
+      `,
+        errors: [
+          {
+            message: "',' should be placed last.",
+            line: 5,
+            column: 13,
+            endLine: 5,
+            endColumn: 14
+          }
+        ]
+      }
+    ]
+  })
+}