Add coverage

.gitignore

@@ -1 +1,4 @@
 node_modules/
+.nyc_output/
+coverage/
+npm-debug.log

.travis.yml

@@ -6,3 +6,5 @@ node_js:
 cache:
     directories:
         - "node_modules"
+after_success:
+    - "npm install coveralls@3 && nyc report --reporter=text-lcov | coveralls"

lib/collector.js

@@ -7,7 +7,6 @@ const pathlib = require('path');
 const extractors = require('./extractors');
 const Command = require('./commands');
 const {Scope, Module} = require('./scope');
-const {consume, log} = require('./utils');
 
 class Collector {
     constructor(parser, root = '.') {

lib/utils.js

@@ -11,11 +11,6 @@ function partition(iter, predicate) {
     return [left, right];
 }
 
-function log(arg, depth = 5) {
-    console.dir(arg, {colors: true, depth});
-}
-
 module.exports = {
     partition,
-    log,
 };

package.json

@@ -27,9 +27,10 @@
     "resolve": "^1.5.0"
   },
   "devDependencies": {
-    "jsondiffpatch": "^0.2.5"
+    "jsondiffpatch": "^0.2.5",
+    "nyc": "^11.3.0"
   },
   "scripts": {
-    "test": "node tests/do"
+    "test": "nyc --reporter=text node tests/do"
   }
 }