feat: replace Q with Bluebird, close #4

index.js

@@ -35,9 +35,7 @@ function comeBack () {
 }
 
 const chdirTo = folderName => {
-  return Promise.try(() => {
-    return _to(folderName)
-  })
+  return Promise.try(() => _to(folderName))
 }
 
 module.exports = {

package.json

@@ -4,13 +4,16 @@
   "description": "Change working dir and return a promise, a stack of folders is maintained to jump back",
   "main": "index.js",
   "scripts": {
-    "test": "node test/chdir-promise-spec.js",
+    "test": "echo running unit tests",
+    "posttest": "mocha test/*-spec.js",
+    "demo": "DEBUG=chdir-promise node test/demo.js",
+    "deps": "deps-ok && dependency-check --no-dev .",
     "semantic-release": "semantic-release",
     "commit": "commit-wizard",
     "size": "t=\"$(npm pack .)\"; wc -c \"${t}\"; tar tvf \"${t}\"; rm \"${t}\";",
-    "pretty": "prettier-standard *.js src/*.js",
+    "pretty": "prettier-standard *.js src/*.js test/*.js",
     "prelint": "npm run pretty",
-    "lint": "standard --verbose --fix *.js src/*.js",
+    "lint": "standard --verbose --fix *.js src/*.js test/*.js",
     "pretest": "npm run lint",
     "issues": "git-issues"
   },
@@ -46,8 +49,11 @@
     "spots": "0.5.0"
   },
   "devDependencies": {
+    "dependency-check": "2.9.1",
+    "deps-ok": "1.2.1",
     "git-issues": "^1.3.1",
     "github-post-release": "1.13.1",
+    "mocha": "^4.0.1",
     "pre-git": "3.15.3",
     "prettier-standard": "7.0.3",
     "semantic-release": "9.0.0",
@@ -60,6 +66,7 @@
         "npm test"
       ],
       "pre-push": [
+        "npm run deps",
         "npm run size"
       ],
       "post-commit": [],

test/chdir-promise-spec.js

@@ -1,29 +1,70 @@
-var la = require('lazy-ass');
-var check = require('check-more-types');
-var folders = require('..');
-var join = require('path').join;
-var parentFolder = join(process.cwd(), '..')
-
-la(check.object(folders), 'expected folders to be an object', folders);
-la(check.fn(folders.to), 'expected folders.to to be a function', folders);
-
-folders.to(__dirname)
-  .then(folders.back)
-  .then(folders.to(__dirname))
-  .then(folders.from)
-  .then(folders.to(__dirname))
-  .then(function () {
-    return 'foo';
+const la = require('lazy-ass')
+const is = require('check-more-types')
+
+/* eslint-env mocha */
+describe('chdir-promise', () => {
+  const chdir = require('..')
+  const originalFolder = process.cwd()
+
+  const here = () =>
+    la(
+      process.cwd() === __dirname,
+      'expected to be in',
+      __dirname,
+      'but was in',
+      process.cwd()
+    )
+
+  const inOriginal = () =>
+    la(
+      process.cwd() === originalFolder,
+      'expected to be in',
+      originalFolder,
+      'but was in',
+      process.cwd()
+    )
+
+  it('has to method', () => {
+    la(is.fn(chdir.to))
+  })
+
+  it('starts in original folder', () => {
+    inOriginal()
   })
-  .tap(folders.back)
-  .then(function (result) {
-    la(result === 'foo', 'incorrect result', result);
+
+  it('changes folders once', () => {
+    return chdir
+      .to(__dirname)
+      .then(here)
+      .then(chdir.back)
+      .then(inOriginal)
+  })
+
+  it('changes folders twice', () => {
+    return chdir
+      .to(__dirname)
+      .then(here)
+      .then(chdir.back)
+      .then(inOriginal)
+      .then(_ => chdir.to(__dirname))
+      .then(here)
+      .then(chdir.back)
+      .then(inOriginal)
+  })
+
+  context('back', () => {
+    it('is a function', () => {
+      la(is.fn(chdir.back))
+    })
+
+    it('returns a promise', () => {
+      return chdir
+        .to(__dirname)
+        .then(here)
+        .then(_ => chdir.back().then(_ => 'foo'))
+        .then(value => {
+          la(value === 'foo', 'got', value)
+        })
+    })
   })
-  .done();
-
-// .back() returns a promise
-folders.to(parentFolder)
-  .then(function () {
-    return folders.back()
-      .then(function () {})
-  }).done();
+})

test/demo.js

@@ -0,0 +1,32 @@
+const la = require('lazy-ass')
+const check = require('check-more-types')
+const folders = require('..')
+// const join = require('path').join
+// const parentFolder = join(process.cwd(), '..')
+
+la(check.object(folders), 'expected folders to be an object', folders)
+la(check.fn(folders.to), 'expected folders.to to be a function', folders)
+
+folders
+  .to(__dirname)
+  .then(folders.back)
+  .then(() => folders.to(__dirname))
+  .then(folders.from)
+  .then(() => folders.to(__dirname))
+  .then(function () {
+    return 'foo'
+  })
+  .tap(folders.back)
+  .then(function (result) {
+    la(result === 'foo', 'incorrect result', result)
+    console.log('result', result)
+  })
+  .done()
+
+// .back() returns a promise
+// folders
+//   .to(parentFolder)
+//   .then(function () {
+//     return folders.back().then(function () {})
+//   })
+//   .done()