test: Separate TravisCI coverage script from local coverage script

.travis.yml

@@ -19,7 +19,7 @@ node_js:
   - "node"
 
 script:
-  - npm run coverage
+  - npm run coverage-travis
 
 after_script: 
 
@@ -28,3 +28,5 @@ after_script:
 
   # Send coverage to Code Climate
   - ./cc-test-reporter after-build --exit-code $TRAVIS_TEST_RESULT
+
+  - rm -rf ./coverage

package.json

@@ -4,8 +4,9 @@
   "description": "A Node.js wrapper for 7-Zip with platform binaries",
   "main": "lib/index.js",
   "scripts": {
-    "test": "npx mocha -r esm 'test/**/*.spec.js' --timeout=0",
-    "coverage": "npx nyc --reporter=html --reporter=lcov npm test",
+    "test": "npx mocha -r esm --reporter=spec 'test/**/*.spec.js'",
+    "coverage-local": "npx nyc --reporter=html --reporter=lcov npm test",
+    "coverage-travis": "npx --reporter=lcovonly npm test",
     "coveralls": "cat ./coverage/lcov.info | npx coveralls"
   },
   "repository": {

test/func/add.spec.js

@@ -1,4 +1,4 @@
-/* global describe, it, before, beforeEach, after, afterEach */
+/* global describe, it, before, after */
 import { expect } from 'chai'
 import { existsSync, statSync } from 'fs'
 import { sync as rimraf } from 'rimraf'
@@ -11,6 +11,7 @@ const tmpDir = './test/_tmp'
 describe('Functional: add()', function () {
   before(function (done) {
     rimraf('*/**/.DS_Store')
+    rimraf(`${tmpDir}/*`)
     done()
   })