Test coverage (#78)

• Show the code coverage once the tests runned
• Generate a repository ./coverage with a report about your code coverage
• Publish the code coverage on coveralls once the tests finished on Travis

Author: SombreroElGringo

.travis.yml

@@ -3,3 +3,4 @@ node_js:
   - "4"
   - "6"
   - "8"
+after_success: npm run coverage

README.md

@@ -1,6 +1,8 @@
 # line-bot-sdk-nodejs
 
-[![Travis CI](https://travis-ci.org/line/line-bot-sdk-nodejs.svg?branch=master)](https://travis-ci.org/line/line-bot-sdk-nodejs) [![npmjs](https://badge.fury.io/js/%40line%2Fbot-sdk.svg)](https://www.npmjs.com/package/@line/bot-sdk)
+[![Travis CI](https://travis-ci.org/line/line-bot-sdk-nodejs.svg?branch=master)](https://travis-ci.org/line/line-bot-sdk-nodejs) 
+[![Coverage Status](https://coveralls.io/repos/github/line/line-bot-sdk-nodejs/badge.svg?branch=master)](https://coveralls.io/github/line/line-bot-sdk-nodejs?branch=master)
+[![npmjs](https://badge.fury.io/js/%40line%2Fbot-sdk.svg)](https://www.npmjs.com/package/@line/bot-sdk)
 
 Node.js SDK for LINE Messaging API
 

package.json

@@ -14,7 +14,8 @@
   ],
   "scripts": {
     "pretest": "npm run build",
-    "test": "API_BASE_URL=http://localhost:1234/ TEST_PORT=1234 TS_NODE_CACHE=0 mocha -r ts-node/register test/*.spec.ts",
+    "test": "API_BASE_URL=http://localhost:1234/ TEST_PORT=1234 TS_NODE_CACHE=0 nyc mocha",
+    "coverage": "nyc report --reporter=text-lcov | coveralls",
     "prettier": "prettier --parser typescript --trailing-comma all \"{lib,test}/**/*.ts\"",
     "format": "npm run prettier -- --write",
     "format:check": "npm run prettier -- -l",
@@ -47,14 +48,30 @@
   "devDependencies": {
     "@types/express": "^4.0.35",
     "@types/mocha": "^2.2.41",
+    "coveralls": "^3.0.2",
     "del-cli": "^1.1.0",
     "express": "^4.16.3",
     "gitbook-cli": "^2.3.2",
     "husky": "^0.14.3",
     "mocha": "^5.2.0",
+    "nyc": "^12.0.2",
     "prettier": "^1.8.2",
     "ts-node": "^3.3.0",
     "typescript": "^2.6.1"
   },
+  "nyc": {
+    "require": [
+      "ts-node/register"
+    ],
+    "extension": [
+      ".ts"
+    ],
+    "reporter": [
+      "lcov",
+      "text-summary"
+    ],
+    "sourceMap": true,
+    "instrument": true
+  },
   "license": "Apache-2.0"
 }

test/mocha.opts

@@ -0,0 +1,2 @@
+--require ts-node/register
+test/*.spec.ts