test: use which to find the package manager

aminya · aminya · commit 7615f6caf9e6 · 2022-11-26T19:55:54.000-08:00
diff --git a/package.json b/package.json
@@ -31,6 +31,7 @@
     "@types/semver": ">=7",
     "@types/shelljs": "^0.8.11",
     "@types/weak-napi": "^2.0.1",
+    "@types/which": "^2.0.1",
     "benchmark": ">=2",
     "chai": ">=4.3",
     "cross-env": "^7.0.3",
@@ -51,7 +52,8 @@
     "ts-morph": "^17.0.1",
     "ts-node": "10.9",
     "typescript": "4.9",
-    "weak-napi": "^2.0.2"
+    "weak-napi": "^2.0.2",
+    "which": "^3.0.0"
   },
   "engines": {
     "node": ">= 10.2"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
diff --git a/test/unit/typings-compatibility-test.ts b/test/unit/typings-compatibility-test.ts
@@ -8,6 +8,7 @@ import {
   readFile,
   writeFile,
 } from "fs-extra"
+import * as which from "which"
 
 import {assert} from "chai"
 
@@ -169,9 +170,7 @@ async function prepareTestPackage(
 async function getPackageManager() {
   const packageManagers = ["pnpm", "yarn", "npm"]
 
-  const versionResults = await Promise.all(
-    packageManagers.map(pm => run(`${pm} --version`, tscTestBasePath, false)),
-  )
+  const versionResults = await Promise.all(packageManagers.map(pm => which(pm)))
 
   const packageManagerIndex = versionResults.findIndex(
     versionResult => typeof versionResult === "string",
