Refactor: Replaced istanbul with nyc

.gitignore

@@ -13,6 +13,7 @@ lib-cov
 coverage
 .grunt
 .lock-wscript
+.nyc_output
 
 # Compile
 build/Release

package.json

@@ -30,7 +30,25 @@
     "codacy-coverage": "^3.4.0",
     "coveralls": "^3.0.4",
     "eslint": "^5.15.2",
-    "istanbul": "^0.4.5"
+    "nyc": "^14.1.1"
+  },
+  "nyc": {
+    "check-coverage": true,
+    "branches": 85,
+    "lines": 85,
+    "functions": 85,
+    "statements": 85,
+    "all": true,
+    "exclude": [
+      "**/example.js",
+      "**/coverage/**",
+      "**/packages/**",
+      "**/.git/**"
+    ],
+    "reporter": [
+      "lcov",
+      "text"
+    ]
   },
   "engines": {
     "node": ">=8.0.0"
@@ -39,8 +57,8 @@
     "coverage",
     "coveralls",
     "eslint",
-    "istanbul",
     "lint",
+    "nyc",
     "test",
     "unittest"
   ],

test.sh

@@ -3,7 +3,7 @@ result=0
 libpath="$(pwd)"
 nodebin="$libpath/node_modules/.bin"
 eslintBin="$nodebin/eslint"
-istanbulBin="$nodebin/istanbul"
+nycBin="$nodebin/nyc"
 coverallsBin="$nodebin/coveralls"
 codacyBin="$nodebin/codacy-coverage"
 
@@ -58,11 +58,11 @@ else
 fi
 
 # Run test script with coverage
-if [[ -x "$istanbulBin" ]]; then
-  "$istanbulBin" cover test.js || result=1
+if [[ -x "$nycBin" ]]; then
+  "$nycBin" --clean node test.js || result=1
 else
   result=1
-  echo -e "\033[31mERROR:\033[0m Istanbul is not installed"
+  echo -e "\033[31mERROR:\033[0m nyc is not installed"
   echo "Run 'npm i' to install all dependencies."
   echo
 fi