Merge pull request #184 from newrelic-forks/master

tests: add command-exists tests

.gitignore

@@ -5,4 +5,5 @@ tmp/
 .idea/
 vendor/
 .bundle
-out
+out
+.vscode/

index.js

@@ -357,7 +357,6 @@ async function runRuleset (ruleset, targets, fileSystem, dryRun) {
   const allRules = await loadRules()
   // load the fixes
   const allFixes = await loadFixes()
-  // do the same with fixes
   // run the ruleset
   const results = ruleset.map(async r => {
     // check axioms and enable appropriately

tests/lib/command_exists_tests.js

@@ -0,0 +1,35 @@
+// Copyright 2017 TODO Group. All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+const chai = require('chai')
+const expect = chai.expect
+const { commandExists } = require('../../lib/command_exists')
+
+describe('lib', () => {
+  describe('command_exists', function () {
+    it('should detect a command exists', async () => {
+      const res = await commandExists('ssh')
+      expect(res).to.equal('ssh')
+    })
+
+    it('should detect a command doesn\'t exists', async () => {
+      const res = await commandExists('notacommand')
+      expect(res).to.equal(null)
+    })
+
+    it('should detect one of the commands exist', async () => {
+      const res = await commandExists(['notacommand', 'ssh'])
+      expect(res).to.equal('ssh')
+    })
+
+    it('should detect none of the commands exist', async () => {
+      const res = await commandExists(['notacommand', 'alsonotacommand'])
+      expect(res).to.equal(null)
+    })
+
+    it('should detect the first command exists', async () => {
+      const res = await commandExists(['ssh', 'ln'])
+      expect(res).to.equal('ssh')
+    })
+  })
+})