Switch tests to jest

jest works with globals so they have to be added to the Eslint configuration.

I decided to move tests next to the files they test (jest picks up files that
are name *.test.js) to make them easier to locate. They need to be ignored by
babel to not show up in the lib folder (that is published to npm).

jest comes with a coverage tool and a watch mode so nyc and npm-watch are no
longer needed.
nickmerwin/node-coveralls#126 (comment)

.eslintrc.yaml

@@ -8,6 +8,7 @@ parserOptions:
 env:
   node: true
   es6: true
+  jest: true
 
 # Rules
 # http://eslint.org/docs/rules/

.gitignore

@@ -4,5 +4,5 @@ node_modules
 # ES5 Code (transpiled by babel)
 lib
 
-# nyc (code coverage) output
-.nyc_output
+# code coverage output
+coverage

.npmignore

@@ -1,5 +1,2 @@
 # ES6 files
 src
-
-# Tests
-test

package.json

@@ -8,21 +8,23 @@
     "lib": "src"
   },
   "scripts": {
-    "watch": "npm-watch",
+    "watch": "jest --watch",
     "lint:js": "eslint . --ignore-path .gitignore",
     "lint:md": "remark . --quiet --frail",
     "lint": "run-p lint:*",
     "pretest": "npm run lint",
-    "tape": "nyc --all tape 'tests/**/*.test.js'",
-    "test": "npm run tape",
-    "coverage": "nyc report --reporter=text-lcov | coveralls",
+    "test": "jest --coverage",
+    "coverage": "cat ./coverage/lcov.info | coveralls",
     "prebuild": "rimraf lib",
     "build": "babel src --out-dir lib",
     "prepublish": "npm run build"
   },
   "babel": {
     "presets": [
       "es2015"
+    ],
+    "ignore": [
+      "*.test.js"
     ]
   },
   "repository": {
@@ -47,27 +49,12 @@
   "devDependencies": {
     "babel-cli": "^6.9.0",
     "babel-preset-es2015": "^6.9.0",
-    "babel-register": "^6.9.0",
     "coveralls": "^2.11.9",
     "eslint": "^2.10.2",
+    "jest": "^18.0.0",
     "npm-run-all": "^2.1.1",
-    "npm-watch": "^0.1.4",
-    "nyc": "^6.4.4",
     "remark": "^4.2.2",
     "remark-lint": "^3.2.1",
-    "rimraf": "^2.5.2",
-    "tape": "^4.5.1"
-  },
-  "nyc": {
-    "include": "src",
-    "require": [
-      "babel-register"
-    ]
-  },
-  "watch": {
-    "tape": {
-      "patterns": ["src", "tests"],
-      "quiet": "true"
-    }
+    "rimraf": "^2.5.2"
   }
 }

src/index.test.js

@@ -0,0 +1,5 @@
+import convertToStylelint from './index'
+
+it('should not be implemented', () => {
+  expect(convertToStylelint()).toBe('Not implemented')
+})