Merge 7f7a8815ae into e3ce749e20

__tests__/README.md

@@ -2,7 +2,7 @@ Files located in data directory are used only for testing purposes.
 
 
 ## Here the list of files in the data directory
- - `.nvmrc`, `.tools-versions` and `package.json` are used to test node-version-file logic
+ - `.nvmrc`, `.tools-versions`, `package.json` and `.npmrc` are used to test node-version-file logic
  - `package-lock.json`, `pnpm-lock.yaml` and `yarn.lock` are used to test cache logic 
  - `versions-manifest.json` is used for unit testing to check downloading Node.js versions from the node-versions repository.
  - `node-dist-index.json` is used for unit testing to check downloading Node.js versions from the official site. The file was constructed from https://nodejs.org/dist/index.json

__tests__/data/.npmrc

@@ -0,0 +1 @@
+use-node-version=20.0.0

__tests__/main.test.ts

@@ -103,10 +103,14 @@ describe('main tests', () => {
       ${''}                                        | ${''}
       ${'unknown format'}                          | ${'unknown format'}
       ${'  14.1.0  '}                              | ${'14.1.0'}
+      ${'use-node-version=lts/iron'}               | ${'lts/iron'}
+      ${'use-node-version=23.10.0'}                | ${'23.10.0'}
       ${'{"volta": {"node": ">=14.0.0 <=17.0.0"}}'}| ${'>=14.0.0 <=17.0.0'}
       ${'{"volta": {"extends": "./package.json"}}'}| ${'18.0.0'}
       ${'{"engines": {"node": "17.0.0"}}'}         | ${'17.0.0'}
       ${'{}'}                                      | ${null}
+      ${'[section]use-node-version=16'}            | ${null}
+      ${'[section]\nuse-node-version=20'}          | ${null}
     `.it('parses "$contents"', ({contents, expected}) => {
       const existsSpy = jest.spyOn(fs, 'existsSync');
       existsSpy.mockImplementation(() => true);