feat: remove version from comparison tests

.gitignore

@@ -9,7 +9,8 @@ bundle.js
 npm-debug.log
 /.test/
 /test/execution-tests/**/typings
-!/test/**/expectedOutput-*/**
+!/test/**/expectedOutput/**
+!/test/**/expectedOutput-transpile/**
 /**/node_modules
 /dist
 /test/execution-tests/**/dist

.vscode/settings.json

@@ -5,6 +5,7 @@
   "github.copilot.nextEditSuggestions.enabled": true,
   "chat.tools.terminal.autoApprove": {
     "git blame": true,
-    "sed": true
+    "sed": true,
+    "yarn": true,
   }
 }

AGENTS.md

@@ -41,20 +41,6 @@ yarn comparison-tests -- --save-output --single-test <name>       # regenerate o
 
 > Note: test name casing must be exact when using `--single-test`.
 
-### Seeding snapshots for a new TypeScript version
-
-When adding support for a new TypeScript version, run:
-
-```bash
-yarn comparison-tests-generate
-```
-
-This does two things:
-1. `git clean -xfd test/comparison-tests` — wipes all untracked/generated files in the test directory.
-2. Runs `test/comparison-tests/stub-new-version.js`, which copies every `expectedOutput-{OLD}/` and `expectedOutput-transpile-{OLD}/` folder to the corresponding `expectedOutput-{NEW}/` counterpart across all test sub-directories.
-
-The `OLD_VERSION` and `NEW_VERSION` constants at the top of `stub-new-version.js` must be updated manually before running this script each time a new TypeScript version is introduced. After running, review and commit the seeded snapshots, then use `--save-output` to correct any that differ from the new version's actual output.
-
 ## Execution tests (`test/execution-tests/`)
 
 Each sub-directory is a mini webpack project with a Karma/Jasmine test suite. The harness compiles the project and **runs the compiled code** — useful for asserting correct runtime behaviour. These are matrix-tested in CI across Node 20/22 and TypeScript 5.x versions.

package.json

@@ -8,7 +8,6 @@
     "build": "tsc --version && tsc --project \"./src\"",
     "lint": "tsc --project \"./src\" --noEmit && eslint -c .eslintrc.js --ext .ts ./src",
     "comparison-tests": "git clean -xfd test/comparison-tests && npm link --legacy-peer-deps ./test/comparison-tests/testLib && node test/comparison-tests/run-tests.js",
-    "comparison-tests-generate": "git clean -xfd test/comparison-tests && node test/comparison-tests/stub-new-version.js",
     "execution-tests": "git clean -xfd test/execution-tests && node test/execution-tests/run-tests.js",
     "test": "git clean -xfd test/comparison-tests && git clean -xfd test/execution-tests && node test/run-tests.js",
     "clean": "git clean -xfd test/comparison-tests && git clean -xfd test/execution-tests",

test/comparison-tests/create-and-execute-test.js

@@ -29,7 +29,6 @@ if (saveOutputMode) {
     console.log('Will save output as --save-output was supplied...');
 }
 
-const typescriptVersion = semver.major(typescript.version) + '.' + semver.minor(typescript.version);
 const FLAKY = '_FLAKY_';
 const IGNORE = '_IGNORE_';
 
@@ -144,12 +143,12 @@ function createPaths(stagingPath, test, options) {
     const testStagingPath = path.join(stagingPath, test + (options.transpileOnly ? '.transpile' : ''));
     rimraf.sync(testStagingPath); // Make sure it's clean
 
-    const transpilePath = options.transpileOnly ? 'transpile-' : '';
+    const transpilePath = options.transpileOnly ? 'expectedOutput-transpile' : 'expectedOutput';
     return {
         testStagingPath: testStagingPath,
         actualOutput: path.join(testStagingPath, 'actualOutput'),
-        expectedOutput: path.join(testStagingPath, 'expectedOutput-' + transpilePath + typescriptVersion),
-        originalExpectedOutput: path.join(testPath, 'expectedOutput-' + transpilePath + typescriptVersion),
+        expectedOutput: path.join(testStagingPath, transpilePath),
+        originalExpectedOutput: path.join(testPath, transpilePath),
         outputPath: testStagingPath,
     };
 }
@@ -213,11 +212,11 @@ function createWebpackWatchHandler(done, paths, testState, options, test) {
 function setPathsAndGetPatch(paths, testState, options) {
     let patch = '';
     if (testState.iteration > 0) {
-        const transpilePath = options.transpileOnly ? 'transpile-' : '';
+        const transpilePath = options.transpileOnly ? 'expectedOutput-transpile' : 'expectedOutput';
         patch = 'patch' + (testState.iteration - 1);
         paths.actualOutput = path.join(paths.testStagingPath, 'actualOutput', patch);
-        paths.expectedOutput = path.join(paths.testStagingPath, 'expectedOutput-' + transpilePath + typescriptVersion, patch);
-        paths.originalExpectedOutput = path.join(testPath, 'expectedOutput-' + transpilePath + typescriptVersion, patch)
+        paths.expectedOutput = path.join(paths.testStagingPath, transpilePath, patch);
+        paths.originalExpectedOutput = path.join(testPath, transpilePath, patch);
         mkdirp.sync(paths.actualOutput);
         mkdirp.sync(paths.expectedOutput);
         if (saveOutputMode) mkdirp.sync(paths.originalExpectedOutput);