Fix #2496: make e2e tests exit if any single test fails

e2e_tests/failfast.js

@@ -0,0 +1,7 @@
+// Borrowed from https://github.com/facebook/jest/issues/2867#issuecomment-546592968-permalink
+const failFast = require("jasmine-fail-fast");
+
+if (process.argv.includes("--bail")) {
+  const jasmineEnv = jasmine.getEnv();
+  jasmineEnv.addReporter(failFast.init());
+}

jest.config.js

@@ -5,6 +5,9 @@ module.exports = {
   setupFiles: [
     "jest-webextension-mock"
   ],
+  setupFilesAfterEnv: [
+    "e2e_tests/failfast.js"
+  ],
   testRegex: "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
   globals: {
     "ts-jest": {

package.json

@@ -11,6 +11,7 @@
     "flyd": "^0.2.8",
     "fuse.js": "^6.0.4",
     "immer": "^6.0.9",
+    "jasmine-fail-fast": "^2.0.1",
     "mark.js": "^8.11.1",
     "mithril": "^2.0.4",
     "ramda": "^0.27.0",
@@ -54,7 +55,7 @@
     "build": "sh scripts/build.sh",
     "clean": "rm -rf build generated",
     "forrest-run": "yarn run run",
-    "jest": "jest",
+    "jest": "jest --bail --runInBand",
     "lint": "bash hooks/pre-commit",
     "make-zip": "web-ext build --source-dir build --overwrite-dest",
     "pretty": "bash scripts/pretty.sh",

yarn.lock

@@ -4707,6 +4707,13 @@ istanbul-reports@^3.0.2:
     html-escaper "^2.0.0"
     istanbul-lib-report "^3.0.0"
 
+jasmine-fail-fast@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/jasmine-fail-fast/-/jasmine-fail-fast-2.0.1.tgz#222daa16c89b675aba4ed9552d62cf0d1e759d71"
+  integrity sha512-En8ONwvDQOV+jyiZEZvbvUSLWSdJFj9HiWjhLdGq/V/gxs4XyST730ooe928BbRxv4bfy05OpykKuoOU4aLC5w==
+  dependencies:
+    lodash "^4.17.15"
+
 jed@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/jed/-/jed-1.1.1.tgz#7a549bbd9ffe1585b0cd0a191e203055bee574b4"