diff --git a/packages/eslint-plugin/tests/rules/semi.test.ts b/packages/eslint-plugin/tests/rules/semi.test.ts
index e1f53043a9ce..e36fcc0402aa 100644
--- a/packages/eslint-plugin/tests/rules/semi.test.ts
+++ b/packages/eslint-plugin/tests/rules/semi.test.ts
@@ -1069,7 +1069,7 @@ class PanCamera extends FreeCamera {
       },
       {
         code: 'a;\n++b;',
-        output: 'a\n++b;',
+        output: 'a\n++b',
         errors: [
           {
             line: 1,
diff --git a/packages/eslint-plugin/tests/rules/space-infix-ops.test.ts b/packages/eslint-plugin/tests/rules/space-infix-ops.test.ts
index 61bb6b08c1fb..805c9ea0282d 100644
--- a/packages/eslint-plugin/tests/rules/space-infix-ops.test.ts
+++ b/packages/eslint-plugin/tests/rules/space-infix-ops.test.ts
@@ -1022,7 +1022,7 @@ ruleTester.run('space-infix-ops', rule, {
         type Test=|string|(((() => void)))|string;
       `,
       output: `
-        type Test = |string | (((() => void))) | string;
+        type Test = | string | (((() => void))) | string;
       `,
       errors: [
         {
diff --git a/packages/rule-tester/src/utils/SourceCodeFixer.ts b/packages/rule-tester/src/utils/SourceCodeFixer.ts
index a1f8fd3cb89d..2cbd56ddbd80 100644
--- a/packages/rule-tester/src/utils/SourceCodeFixer.ts
+++ b/packages/rule-tester/src/utils/SourceCodeFixer.ts
@@ -63,7 +63,7 @@ export function applyFixes(
     const end = fix.range[1];
 
     // Remain it as a problem if it's overlapped or it's a negative range
-    if (lastPos >= start || start > end) {
+    if (lastPos > start || start > end) {
       remainingMessages.push(problem);
       return false;
     }