Add nyc and coveralls (#497)

.gitignore

@@ -15,3 +15,4 @@ leakydb
 npm-debug.log
 prebuilds/
 yarn.lock
+.nyc_output

.npmignore

@@ -15,3 +15,4 @@ README
 INSTALL
 NEWS
 AUTHORS
+.nyc_output/

.travis.yml

@@ -13,3 +13,5 @@ node_js:
   - 6
   - 8
   - 10
+
+after_success: npm run coverage

README.md

@@ -7,6 +7,7 @@
 [![AppVeyor](https://img.shields.io/appveyor/ci/Level/leveldown.svg?label=appveyor)](https://ci.appveyor.com/project/Level/leveldown)
 [![dependencies](https://david-dm.org/Level/leveldown.svg)](https://david-dm.org/level/leveldown)
 [![npm](https://img.shields.io/npm/dm/leveldown.svg)](https://www.npmjs.com/package/leveldown)
+[![Coverage Status](https://coveralls.io/repos/github/Level/leveldown/badge.svg)](https://coveralls.io/github/Level/leveldown)
 [![JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://standardjs.com)
 
 * [Introduction](#introduction)

package.json

@@ -21,13 +21,14 @@
   },
   "devDependencies": {
     "async": "^2.0.1",
+    "coveralls": "^3.0.2",
     "delayed": "~1.0.1",
     "du": "~0.1.0",
-    "faucet": "0.0.1",
     "iota-array": "~1.0.0",
     "lexicographic-integer": "~1.1.0",
     "mkfiletree": "~1.0.1",
     "monotonic-timestamp": "~0.0.8",
+    "nyc": "^12.0.2",
     "optimist": "~0.6.1",
     "prebuild": "^7.0.0",
     "prebuild-ci": "^2.0.0",
@@ -43,7 +44,8 @@
   },
   "scripts": {
     "install": "prebuild-install || node-gyp rebuild",
-    "test": "standard && verify-travis-appveyor && (tape test/*-test.js | faucet) && prebuild-ci",
+    "test": "standard && verify-travis-appveyor && nyc tape test/*-test.js && prebuild-ci",
+    "coverage": "nyc report --reporter=text-lcov | coveralls",
     "rebuild": "prebuild --compile",
     "prebuild": "prebuild --all --strip --verbose",
     "changelog": "remark CHANGELOG.md -o"