1 files changed, 80 insertions, 0 deletions
diff --git a/deps/npm/test/lib/utils/cleanup-log-files.js b/deps/npm/test/lib/utils/cleanup-log-files.js
new file mode 100644
index 0000000000..ee2c11e62a
--- /dev/null
+++ b/deps/npm/test/lib/utils/cleanup-log-files.js
@@ -0,0 +1,80 @@
+const t = require('tap')
+
+const requireInject = require('require-inject')
+const glob = require('glob')
+const rimraf = require('rimraf')
+const mocks = { glob, rimraf }
+const cleanup = requireInject('../../../lib/utils/cleanup-log-files.js', {
+  glob: (...args) => mocks.glob(...args),
+  rimraf: (...args) => mocks.rimraf(...args)
+})
+const { basename } = require('path')
+
+const fs = require('fs')
+
+t.test('clean up those files', t => {
+  const cache = t.testdir({
+    _logs: {
+      '1-debug.log': 'hello',
+      '2-debug.log': 'hello',
+      '3-debug.log': 'hello',
+      '4-debug.log': 'hello',
+      '5-debug.log': 'hello'
+    }
+  })
+  const warn = (...warning) => t.fail('failed cleanup', { warning })
+  return cleanup(cache, 3, warn).then(() => {
+    t.strictSame(fs.readdirSync(cache + '/_logs').sort(), [
+      '3-debug.log',
+      '4-debug.log',
+      '5-debug.log'
+    ])
+  })
+})
+
+t.test('nothing to clean up', t => {
+  const cache = t.testdir({
+    _logs: {
+      '4-debug.log': 'hello',
+      '5-debug.log': 'hello'
+    }
+  })
+  const warn = (...warning) => t.fail('failed cleanup', { warning })
+  return cleanup(cache, 3, warn).then(() => {
+    t.strictSame(fs.readdirSync(cache + '/_logs').sort(), [
+      '4-debug.log',
+      '5-debug.log'
+    ])
+  })
+})
+
+t.test('glob fail', t => {
+  mocks.glob = (pattern, cb) => cb(new Error('no globbity'))
+  t.teardown(() => mocks.glob = glob)
+  const cache = t.testdir({})
+  const warn = (...warning) => t.fail('failed cleanup', { warning })
+  return cleanup(cache, 3, warn)
+})
+
+t.test('rimraf fail', t => {
+  mocks.rimraf = (file, cb) => cb(new Error('youll never rimraf me!'))
+  t.teardown(() => mocks.rimraf = rimraf)
+
+  const cache = t.testdir({
+    _logs: {
+      '1-debug.log': 'hello',
+      '2-debug.log': 'hello',
+      '3-debug.log': 'hello',
+      '4-debug.log': 'hello',
+      '5-debug.log': 'hello'
+    }
+  })
+  const warnings = []
+  const warn = (...warning) => warnings.push(basename(warning[2]))
+  return cleanup(cache, 3, warn).then(() => {
+    t.strictSame(warnings.sort((a, b) => a.localeCompare(b)), [
+      '1-debug.log',
+      '2-debug.log'
+    ])
+  })
+})