built: use nyc for test coverage

.eslintignore

@@ -1,2 +1,3 @@
+.nyc_output
 coverage
 node_modules

.gitignore

@@ -1,3 +1,4 @@
+.nyc_output/
 coverage/
 node_modules/
 package-lock.json

.travis.yml

@@ -23,17 +23,15 @@ before_install:
   - "npm rm --save-dev beautify-benchmark"
 
   # Setup Node.js version-specific dependencies
-  - "test $TRAVIS_NODE_VERSION != '0.6' || npm rm --save-dev istanbul"
-  - "test $TRAVIS_NODE_VERSION != '0.8' || npm rm --save-dev istanbul"
   - "test $(echo $TRAVIS_NODE_VERSION | cut -d. -f1) -ge 4 || npm rm --save-dev $(grep -E '\"eslint\\S*\"' package.json | cut -d'\"' -f2)"
 
   # Update Node.js modules
   - "test ! -d node_modules || npm prune"
   - "test ! -d node_modules || npm rebuild"
 script:
-  # Run test script, depending on istanbul install
-  - "test ! -z $(npm -ps ls istanbul) || npm test"
-  - "test   -z $(npm -ps ls istanbul) || npm run-script test-travis"
-  - "test   -z $(npm -ps ls eslint  ) || npm run-script lint"
+  # Run test script, depending on nyc install
+  - "test ! -z $(npm -ps ls nyc) || npm test"
+  - "test   -z $(npm -ps ls nyc) || npm run-script test-travis"
+  - "test   -z $(npm -ps ls eslint) || npm run-script lint"
 after_script:
-  - "test -e ./coverage/lcov.info && npm install coveralls@2 && cat ./coverage/lcov.info | coveralls"
+  - "test -d .nyc_output && npm install coveralls@2 && nyc report --reporter=text-lcov | coveralls"

package.json

@@ -23,8 +23,8 @@
     "eslint-plugin-node": "5.1.1",
     "eslint-plugin-promise": "3.5.0",
     "eslint-plugin-standard": "3.0.1",
-    "istanbul": "0.4.5",
-    "mocha": "3.5.0"
+    "mocha": "3.5.0",
+    "nyc": "10.3.2"
   },
   "files": [
     "LICENSE",
@@ -39,7 +39,7 @@
     "bench": "node benchmark/index.js",
     "lint": "eslint .",
     "test": "mocha --reporter spec --bail --check-leaks test/",
-    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
-    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+    "test-cov": "nyc --reporter=text npm test",
+    "test-travis": "nyc --reporter=html --reporter=text npm test"
   }
 }