test: Add simple test for NPM use

rschristian · rschristian · commit b7b85a29b4b7 · 2025-03-27T23:19:41.000-05:00
diff --git a/tests/utils.spec.js b/tests/utils.spec.js
@@ -1,4 +1,5 @@
-import { toBool, getDeltaText, iconForDifference, diffTable, fileExists, stripHash } from '../src/utils.js';
+import path from 'path';
+import { toBool, getDeltaText, iconForDifference, diffTable, getPackageManagerAndInstallScript, fileExists, stripHash } from '../src/utils.js';
 
 test('toBool', () => {
 	expect(toBool('1')).toBe(true);
@@ -65,6 +66,18 @@ test('diffTable', () => {
 	expect(diffTable([files[2]], { ...defaultOptions })).toMatchSnapshot();
 });
 
+test('getPackageManagerAndInstallScript', async () => {
+	let cwd = process.cwd();
+	let { packageManager, installScript } = await getPackageManagerAndInstallScript(cwd);
+	expect(packageManager).toBe('npm');
+	expect(installScript).toBe('npm ci');
+
+	cwd = path.join(cwd, 'tests');
+	({ packageManager, installScript } = await getPackageManagerAndInstallScript(cwd));
+	expect(packageManager).toBe('npm');
+	expect(installScript).toBe('npm install');
+});
+
 test('fileExists', async () => {
 	expect(await fileExists('package.json')).toBe(true);
 	expect(await fileExists('file-that-does-not-exist')).toBe(false);
