Add wp-env for e2e tests

.github/workflows/e2e-tests.yml

@@ -0,0 +1,43 @@
+name: E2E Tests
+
+on:
+    push:
+        branches:
+            - main
+    pull_request:
+
+jobs:
+    e2e-tests:
+        name: E2E Tests
+        runs-on: ubuntu-latest
+        timeout-minutes: 5
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v3
+
+            - name: Setup Node
+              uses: actions/setup-node@v3
+              with:
+                  node-version: 15
+                  cache: npm
+
+            - name: Install dependencies
+              run: npm ci
+
+            - name: Build plugin
+              run: npm run build
+
+            - name: Install WordPress
+              run: |
+                  chmod -R 767 ./ # TODO: Possibly integrate in wp-env
+                  npm run wp-env start
+
+            - name: Run tests
+              run: npm run test:e2e -- --runInBand
+
+            - name: Archive debug artifacts (screenshots, HTML snapshots)
+              uses: actions/upload-artifact@v3
+              if: always()
+              with:
+                  name: failures-artifacts
+                  path: artifacts

.github/workflows/lint-and-test.yml

@@ -10,6 +10,7 @@ jobs:
     lint-js:
         name: JS Lints
         runs-on: ubuntu-latest
+        timeout-minutes: 5
         steps:
             - name: Checkout
               uses: actions/checkout@v3

.gitignore

@@ -1,3 +1,4 @@
+artifacts/
 build/
 node_modules/
 vendor/

.wp-env.json

@@ -0,0 +1,6 @@
+{
+	"core": null,
+	"plugins": [
+		"."
+	]
+}