Introduced separate config for e2e tests

refs https://github.com/TryGhost/Toolbox/issues/475

- Having a single coverage config file for unit and e2e type of tests doesn't play well for tracking coverage progress. The unit test ones are run often when developing, so one can observe the changes in coverage. The e2e tests are ran mostly on CI environment and have different purposes/reach comparing to unit tests.

.gitignore

@@ -18,6 +18,7 @@ lib-cov
 
 # Coverage directory used by tools like istanbul
 coverage
+coverage-e2e
 
 # nyc test coverage
 .nyc_output

ghost/core/.c8rc.e2e.json

@@ -0,0 +1,21 @@
+{
+  "all": true,
+  "check-coverage": true,
+  "reporter": [
+    "html-spa",
+    "text-summary",
+    "cobertura"
+  ],
+  "reportsDir": "./coverage-e2e",
+  "statements": 78,
+  "branches": 80,
+  "functions": 80,
+  "lines": 78,
+  "include": [
+    "core/{*.js,frontend,server,shared}"
+  ],
+  "exclude": [
+    "core/server/data/migrations/**",
+    "!core/server/data/migrations/utils.js"
+  ]
+}

ghost/core/.c8rc.json

@@ -7,7 +7,7 @@
     "cobertura"
   ],
   "statements": 61,
-  "branches": 80,
+  "branches": 85,
   "functions": 51,
   "lines": 61,
   "include": [

ghost/core/package.json

@@ -33,7 +33,8 @@
     "test:e2e": "mocha --require=./test/utils/overrides.js --exit --trace-warnings --recursive --extension=test.js './test/e2e-api' './test/e2e-frontend' './test/e2e-server' './test/e2e-webhooks' --timeout=15000",
     "test:regression": "mocha --require=./test/utils/overrides.js --exit --trace-warnings --recursive --extension=test.js  './test/regression' --timeout=60000",
     "test:browser": "playwright test --browser=all test/e2e-browser",
-    "test:ci": "c8 yarn test:e2e -b && yarn test:integration -b && yarn test:regression -b",
+    "test:ci": "c8 -c ./.c8rc.e2e.json yarn test:ci:base",
+    "test:ci:base": "yarn test:e2e -b",
     "test:unit:slow": "yarn test:unit --reporter=mocha-slow-test-reporter",
     "test:int:slow": "yarn test:integration --reporter=mocha-slow-test-reporter",
     "test:e2e:slow": "yarn test:e2e --reporter=mocha-slow-test-reporter",