test: simplify the use of puppeteer coverage

package.json

@@ -22,6 +22,7 @@
     "test": "jest",
     "test:watch": "jest --watch",
     "test:coverage": "jest --coverage",
+    "test:integration": "jest && npm run cover:report",
     "cover:report": "nyc report --reporter=lcov --reporter=text",
     "unreleased": "conventional-changelog --outfile UNRELEASED.md --output-unreleased",
     "preversion": "npm-run-all build lint test",
@@ -57,7 +58,7 @@
     "npm-run-all": "^4.1.5",
     "nyc": "^15.1.0",
     "puppeteer": "^5.0.0",
-    "puppeteer-to-istanbul": "^1.4.0",
+    "puppeteer-to-istanbul": "^1.3.0",
     "rollup": "^2.16.1",
     "rollup-plugin-terser": "^6.1.0"
   }

tests/anchor.test.js

@@ -4,13 +4,13 @@ import path from 'path';
 import { throttleDelay } from './helpers/throttleDelay';
 
 beforeAll(async () => {
-  await page.coverage.startJSCoverage({ resetOnNavigation: false });
+  await page.coverage.startJSCoverage();
   await page.goto(`file:${path.join(__dirname, '../example.html')}`);
 });
 
 afterAll(async () => {
   const jsCoverage = await page.coverage.stopJSCoverage();
-  pti.write(jsCoverage, { storagePath: './.nyc_output' });
+  pti.write(jsCoverage);
 });
 
 test('should scroll to anchor from initial scroll position', async () => {

tests/api.test.js

@@ -11,7 +11,7 @@ let eLog = {
 };
 
 beforeAll(async () => {
-  await page.coverage.startJSCoverage({ resetOnNavigation: false });
+  await page.coverage.startJSCoverage();
   await page.exposeFunction('onCustomEvent', ({ type, detail, target }) => {
     if (type == 'scroll-stash:anchor') {
       eLog.anchor.push({ type, detail, target });
@@ -34,7 +34,7 @@ beforeAll(async () => {
 
 afterAll(async () => {
   const jsCoverage = await page.coverage.stopJSCoverage();
-  pti.write(jsCoverage, { storagePath: './.nyc_output' });
+  pti.write(jsCoverage);
 });
 
 test('should scroll to anchor on showAnchor api call', async () => {

tests/events.test.js

@@ -10,7 +10,7 @@ let eLog = {
 };
 
 beforeAll(async () => {
-  await page.coverage.startJSCoverage({ resetOnNavigation: false });
+  await page.coverage.startJSCoverage();
   await page.exposeFunction('onCustomEvent', ({ type, detail, target }) => {
     if (type == 'scroll-stash:anchor') {
       eLog.anchor.push({ type, detail, target });
@@ -40,7 +40,7 @@ beforeAll(async () => {
 
 afterAll(async () => {
   const jsCoverage = await page.coverage.stopJSCoverage();
-  pti.write(jsCoverage, { storagePath: './.nyc_output' });
+  pti.write(jsCoverage);
 });
 
 test('should emit custom event when scroll states are saved', async () => {

tests/state.test.js

@@ -6,7 +6,7 @@ import { throttleDelay } from './helpers/throttleDelay';
 let maxScroll;
 
 beforeAll(async () => {
-  await page.coverage.startJSCoverage({ resetOnNavigation: false });
+  await page.coverage.startJSCoverage();
   await page.goto(`file:${path.join(__dirname, '../example.html')}`);
   maxScroll = await page.$eval('#page', (el) => {
     return (el.scrollHeight - el.offsetHeight);
@@ -15,7 +15,7 @@ beforeAll(async () => {
 
 afterAll(async () => {
   const jsCoverage = await page.coverage.stopJSCoverage();
-  pti.write(jsCoverage, { storagePath: './.nyc_output' });
+  pti.write(jsCoverage);
 });
 
 test('should save all scroll-stash elements to local storage', async () => {