chore: fix failing tests in windows + node 18

Some of our tests were failing in windows after testing on node 18. The
reason was the inability to clean up the logs dir. This changes forces
a few tests to run in order and also cleans up any use of multiple
`t.testdir` calls in a single child test which can cause problems.

test/fixtures/mock-npm.js

@@ -66,6 +66,7 @@ const LoadMockNpm = async (t, {
   globalPrefixDir = { lib: {} },
   config = {},
   mocks = {},
+  otherDirs = {},
   globals = null,
 } = {}) => {
   // Mock some globals with their original values so they get torn down
@@ -107,13 +108,15 @@ const LoadMockNpm = async (t, {
     prefix: prefixDir,
     cache: cacheDir,
     global: globalPrefixDir,
+    other: otherDirs,
   })
   const dirs = {
     testdir: dir,
     prefix: path.join(dir, 'prefix'),
     cache: path.join(dir, 'cache'),
     globalPrefix: path.join(dir, 'global'),
     home: path.join(dir, 'home'),
+    other: path.join(dir, 'other'),
   }
 
   // Set cache to testdir via env var so it is available when load is run

test/lib/cli.js

@@ -5,11 +5,12 @@ const { load: loadMockNpm } = require('../fixtures/mock-npm.js')
 const cliMock = async (t, opts) => {
   let exitHandlerArgs = null
   let npm = null
+
   const exitHandlerMock = (...args) => {
     exitHandlerArgs = args
     npm.unload()
   }
-  exitHandlerMock.setNpm = _npm => npm = _npm
+  exitHandlerMock.setNpm = (_npm) => npm = _npm
 
   const { Npm, outputs, logMocks, logs } = await loadMockNpm(t, { ...opts, init: false })
   const cli = t.mock('../../lib/cli.js', {
@@ -172,37 +173,15 @@ t.test('load error calls error handler', async t => {
   t.strictSame(exitHandlerCalled(), [err])
 })
 
-t.test('known broken node version', async t => {
-  const errors = []
-  let exitCode
-  const { cli } = await cliMock(t, {
-    globals: {
-      'console.error': (msg) => errors.push(msg),
-      'process.version': '6.0.0',
-      'process.exit': e => exitCode = e,
-    },
-  })
-  await cli(process)
-  t.match(errors, [
-    'ERROR: npm is known not to run on Node.js 6.0.0',
-    'You\'ll need to upgrade to a newer Node.js version in order to use this',
-    'version of npm. You can find the latest version at https://nodejs.org/',
-  ])
-  t.match(exitCode, 1)
-})
-
 t.test('unsupported node version', async t => {
-  const errors = []
-  const { cli } = await cliMock(t, {
+  const { cli, logs } = await cliMock(t, {
     globals: {
-      'console.error': (msg) => errors.push(msg),
       'process.version': '12.6.0',
     },
   })
   await cli(process)
-  t.match(errors, [
-    'npm does not support Node.js 12.6.0',
-    'You should probably upgrade to a newer version of node as we',
-    'can\'t make any promises that npm will work with this version.',
-  ])
+  t.match(
+    logs.warn[0][1],
+    /npm v.* does not support Node\.js 12\.6\.0\./
+  )
 })