Merge pull request #68 from brettz9/coverage

- Testing: add nyc for checking coverage

Author: rburns

.gitignore

@@ -1,3 +1,4 @@
 .idea
 /node_modules/
 /lib
+coverage

.npmignore

@@ -2,3 +2,5 @@
 .travis.yml
 /node_modules/
 /src
+coverage
+.nyc_output

package-lock.json

@@ -10,9 +10,15 @@
     "build": "babel src --out-dir lib",
     "build:watch": "babel src --out-dir lib --watch",
     "lint": "eslint .",
-    "test": "mocha --reporter tap",
+    "test": "nyc mocha --reporter tap",
     "test:watch": "mocha --reporter tap --watch ./test ./"
   },
+  "nyc": {
+    "reporter": [
+      "text",
+      "html"
+    ]
+  },
   "repository": {
     "type": "git",
     "url": "https://github.com/rburns/ansi-to-html.git"
@@ -83,7 +89,8 @@
     "@babel/preset-env": "^7.9.5",
     "chai": "~4.2.0",
     "eslint": "^6.8.0",
-    "mocha": "^7.1.1"
+    "mocha": "^7.1.1",
+    "nyc": "^15.0.1"
   },
   "dependencies": {
     "entities": "^2.0.0"