build: use nyc for test coverage

Author: dougwilson

.github/workflows/ci.yml

@@ -36,43 +36,43 @@ jobs:
         - name: Node.js 0.8
           node-version: "0.8"
           npm-i: [email protected] [email protected]
-          npm-rm: istanbul
+          npm-rm: nyc
 
         - name: Node.js 0.10
           node-version: "0.10"
-          npm-i: [email protected] [email protected]
+          npm-i: [email protected] [email protected] [email protected]
 
         - name: Node.js 0.12
           node-version: "0.12"
-          npm-i: [email protected] [email protected]
+          npm-i: [email protected] [email protected] [email protected]
 
         - name: io.js 1.x
           node-version: "1.8"
-          npm-i: [email protected] [email protected]
+          npm-i: [email protected] [email protected] [email protected]
 
         - name: io.js 2.x
           node-version: "2.5"
-          npm-i: [email protected] [email protected]
+          npm-i: [email protected] [email protected] [email protected]
 
         - name: io.js 3.x
           node-version: "3.3"
-          npm-i: [email protected] [email protected]
+          npm-i: [email protected] [email protected] [email protected]
 
         - name: Node.js 4.x
           node-version: "4.9"
-          npm-i: [email protected] [email protected]
+          npm-i: [email protected] [email protected] [email protected]
 
         - name: Node.js 5.x
           node-version: "5.12"
-          npm-i: [email protected] [email protected]
+          npm-i: [email protected] [email protected] [email protected]
 
         - name: Node.js 6.x
           node-version: "6.16"
-          npm-i: [email protected] [email protected]
+          npm-i: [email protected] [email protected] [email protected]
 
         - name: Node.js 7.x
           node-version: "7.10"
-          npm-i: [email protected] [email protected]
+          npm-i: [email protected] [email protected] [email protected]
 
         - name: Node.js 8.x
           node-version: "8.16"
@@ -164,7 +164,7 @@ jobs:
     - name: Run tests
       shell: bash
       run: |
-        if npm -ps ls istanbul | grep -q istanbul; then
+        if npm -ps ls nyc | grep -q nyc; then
           npm run test-ci
           cp coverage/lcov.info "coverage/${{ matrix.name }}.lcov"
         else
@@ -176,7 +176,7 @@ jobs:
       run: npm run lint
 
     - name: Collect code coverage
-      if: steps.list_env.outputs.istanbul != ''
+      if: steps.list_env.outputs.nyc != ''
       run: |
         if [[ -d ./coverage ]]; then
           mv ./coverage "./${{ matrix.name }}"
@@ -186,7 +186,7 @@ jobs:
 
     - name: Upload code coverage
       uses: actions/upload-artifact@v3
-      if: steps.list_env.outputs.istanbul != ''
+      if: steps.list_env.outputs.nyc != ''
       with:
         name: coverage
         path: ./coverage

.gitignore

@@ -1,3 +1,4 @@
+.nyc_output/
 coverage/
 node_modules/
 npm-debug.log

package.json

@@ -16,8 +16,8 @@
     "eslint-plugin-node": "11.1.0",
     "eslint-plugin-promise": "6.1.1",
     "eslint-plugin-standard": "4.1.0",
-    "istanbul": "0.4.5",
     "mocha": "9.2.2",
+    "nyc": "15.1.0",
     "supertest": "6.3.3"
   },
   "files": [
@@ -31,7 +31,7 @@
   "scripts": {
     "lint": "eslint .",
     "test": "mocha --reporter spec --bail --check-leaks test/",
-    "test-ci": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/",
-    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/"
+    "test-ci": "nyc --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
   }
 }