feat(test): add nyc coverage

Makefile

@@ -95,7 +95,7 @@ test-examples: ## run medium (feature) tests
 
 test-bundle: ## run small (unit) tests
 test-bundle: build-bundle
-	$(NODE_BIN)/mocha $(TARGET_PATH)/test.js
+	$(NODE_BIN)/nyc --reporter=lcov --reporter=text-summary --report-dir="$(TARGET_PATH)/coverage" --exclude-after-remap $(NODE_BIN)/mocha $(TARGET_PATH)/test.js
 
 test-rules: ## validate the rules directory
 test-rules: build-bundle
@@ -159,4 +159,4 @@ run-stream: ## validate stdin and write it to stdout, errors to stderr
 		--format yaml \
 		--rules $(ROOT_PATH)/rules/kubernetes.yml \
 		--source - \
-		--tag kubernetes
+		--tag kubernetes

config/mocha.json

@@ -0,0 +1,4 @@
+{
+  "reporter": ["json"],
+  "ui": ["bdd"]
+}

package.json

@@ -32,6 +32,7 @@
   "author": "ssube",
   "license": "MIT",
   "devDependencies": {
+    "@istanbuljs/nyc-config-typescript": "^0.1.3",
     "@types/bunyan": "1.8.6",
     "@types/chai": "4.2.0",
     "@types/deep-diff": "1.0.0",
@@ -50,6 +51,7 @@
     "lodash": "4.17.15",
     "mocha": "6.2.0",
     "noicejs": "2.5.2",
+    "nyc": "^14.1.1",
     "rollup": "1.20.3",
     "rollup-plugin-commonjs": "10.1.0",
     "rollup-plugin-json": "4.0.0",
@@ -64,5 +66,8 @@
     "typescript": "3.6.2",
     "yargs": "14.0.0"
   },
-  "dependencies": {}
+  "dependencies": {},
+  "nyc": {
+    "extends": "@istanbuljs/nyc-config-typescript"
+  }
 }