[FormRecognizer] Enable code coverage (Azure#8557)

for both NodeJs and browser

sdk/formrecognizer/ai-form-recognizer/.nycrc

@@ -0,0 +1,19 @@
+{
+    "include": [
+      "dist-esm/src/**/*.js"
+    ],
+    "exclude": [
+      "**/*.d.ts",
+      "dist-esm/src/utils/utils.browser.js",
+      "dist-esm/src/generated/src/**/*.js"
+    ],
+    "reporter": [
+      "text-summary",
+      "html",
+      "cobertura"
+    ],
+    "exclude-after-remap":false,
+    "sourceMap": true,
+    "instrument": true,
+    "all": true
+}

sdk/formrecognizer/ai-form-recognizer/karma.conf.js

@@ -47,10 +47,10 @@ module.exports = function(config) {
     // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
     preprocessors: {
       "**/*.js": ["env"],
-      "recordings/browsers/**/*.json": ["json"]
+      "recordings/browsers/**/*.json": ["json"],
       // IMPORTANT: COMMENT following line if you want to debug in your browsers!!
       // Preprocess source file to calculate code coverage, however this will make source file unreadable
-      // "test-browser/index.js": ["coverage"]
+      "dist-test/index.browser.js": ["coverage"]
     },
 
     envPreprocessor: [

sdk/formrecognizer/ai-form-recognizer/package.json

@@ -60,7 +60,7 @@
     "extract-api": "tsc -p . && api-extractor run --local",
     "format": "prettier --write --config ../../.prettierrc.json \"src/**/*.ts\" \"test/**/*.ts\" \"*.{js,json}\"",
     "integration-test:browser": "karma start --single-run",
-    "integration-test:node": "mocha -r esm --require source-map-support/register --reporter ../../../common/tools/mocha-multi-reporter.js --full-trace -t 300000  dist-esm/test/*.spec.js dist-esm/test/node/*.spec.js",
+    "integration-test:node": "nyc mocha -r esm --require source-map-support/register --reporter ../../../common/tools/mocha-multi-reporter.js --full-trace -t 300000  dist-esm/test/*.spec.js dist-esm/test/node/*.spec.js",
     "integration-test": "npm run integration-test:node && npm run integration-test:browser",
     "lint:fix": "eslint package.json tsconfig.json api-extractor.json src test --ext .ts --fix --fix-type [problem,suggestion]",
     "lint": "eslint package.json tsconfig.json api-extractor.json src test --ext .ts -f html -o formrecognizer-lintReport.html || exit 0",
@@ -127,6 +127,7 @@
     "karma-remap-istanbul": "^0.6.0",
     "mocha": "^7.1.1",
     "mocha-junit-reporter": "^1.18.0",
+    "nyc": "^14.0.0",
     "prettier": "^1.16.4",
     "rimraf": "^3.0.0",
     "rollup": "^1.16.3",