CI job: build, test and self-evaluate test results

.github/workflows/ci.yml

@@ -0,0 +1,30 @@
+name: 'build-test'
+on:
+  pull_request:
+    paths-ignore: [ 'README.md' ]
+  push:
+    paths-ignore: [ 'README.md' ]
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build-test:
+    name: 'Build & Test'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - run: npm ci
+      - run: npm run build
+      - run: npm run format-check
+      - run: npm run lint
+      - run: npm test
+        continue-on-error: true
+      - name: 'Evaluate test results'
+        uses: ./
+        with:
+          name: 'JEST Tests'
+          path: '__tests__/__results__/jest-junit.xml'
+          reporter: 'jest-junit'
+      - name: 'Sanity check' # re-run tests in case this action failed to detected failing test
+        run: npm test

__tests__/__results__/jest-junit.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<testsuites name="jest tests" tests="1" failures="0" errors="0" time="2.249">
+  <testsuite name="__tests__\jest-junit.test.ts" errors="0" failures="0" skipped="0" timestamp="2020-11-17T21:26:30" time="2.195" tests="1">
+    <testcase classname="jest-junit tests" name="matches report snapshot" time="0.014">
+    </testcase>
+  </testsuite>
+</testsuites>

package.json

@@ -10,7 +10,7 @@
     "format-check": "prettier --check **/*.ts",
     "lint": "eslint src/**/*.ts",
     "package": "ncc build --source-map --license licenses.txt",
-    "test": "jest",
+    "test": "jest --ci --reporters=default --reporters=jest-junit",
     "all": "npm run build && npm run format && npm run lint && npm run package && npm test",
     "dart-fixture": "cd \"reports/dart\" && dart test --file-reporter=\"json:../../__tests__/fixtures/dart-json.json\"",
     "dotnet-fixture": "dotnet test reports/dotnet/DotnetTests.XUnitTests --logger \"trx;LogFileName=../../../../__tests__/fixtures/dotnet-trx.trx\"",
@@ -49,9 +49,20 @@
     "eslint-plugin-jest": "^24.0.2",
     "jest": "^24.9.0",
     "jest-circus": "^26.6.1",
+    "jest-junit": "^12.0.0",
     "js-yaml": "^3.14.0",
     "prettier": "2.1.2",
     "ts-jest": "^24.3.0",
     "typescript": "^4.0.3"
+  },
+  "jest-junit": {
+    "suiteName": "jest tests",
+    "outputDirectory": "__tests__/__results__",
+    "outputName": "jest-junit.xml",
+    "ancestorSeparator": " › ",
+    "uniqueOutputName": "false",
+    "suiteNameTemplate": "{filepath}",
+    "classNameTemplate": "{classname}",
+    "titleTemplate": "{title}"
   }
 }