Fix coverage reporting, replace coveralls with codecov

.gitignore

@@ -1,3 +1,5 @@
 /coverage
 /node_modules
 /.env
+/.nyc_output
+/.vscode

.nycrc.json

@@ -0,0 +1,11 @@
+{
+  "cache": false,
+  "extension": [".ts"],
+  "check-coverage": true,
+  "include": ["src/**"],
+  "reporter": ["html", "text", "text-summary"],
+  "statements": 90,
+  "branches": 90,
+  "functions": 95,
+  "lines": 90
+}

package.json

@@ -37,11 +37,10 @@
     "@types/chai": "^4.2.7",
     "@types/mocha": "^8.2.0",
     "chai": "^4.1.2",
-    "coveralls": "^3.0.9",
-    "istanbul": "^0.4.5",
+    "codecov": "^3.8.1",
     "mocha": "^8.2.1",
-    "mocha-lcov-reporter": "^1.3.0",
-    "remap-istanbul": "^0.13.0",
+    "nyc": "^15.1.0",
+    "ts-mocha": "^8.0.0",
     "tslint": "^6.1.3",
     "tslint-config-standard": "^9.0.0",
     "typescript": "^4.1.3",
@@ -54,11 +53,8 @@
     "build": "rm -rf build && tsc && npm run uglify",
     "lint": "rm -rf build && tslint --project tsconfig.json './src/**/*.ts'",
     "lint-fix": "rm -rf build && tslint --project tsconfig.json './src/**/*.ts' --fix",
-    "test-spec": "mocha build/**/*.spec.js -R spec --bail",
-    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- build/**/*.spec.js -R spec --bail",
-    "test-and-send-cov-to-coveralls": "istanbul cover ./node_modules/mocha/bin/_mocha --report lcovonly -- build/**/*.spec.js -R spec --bail && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js",
-    "test-remap": "remap-istanbul -i coverage/coverage.json -o coverage -t html",
-    "test": "npm run build && npm run test-cov && npm run test-remap",
+    "test": "ts-mocha src/**/*.spec.ts --timeout 10000",
+    "test-coverage": "nyc npm test && codecov",
     "uglify": "uglifyjs build/arrayToTree.js --compress --mangle --output build/arrayToTree.min.js"
   }
 }