E2E test

.gitattributes

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+/e2e export-ignore

.github/workflows/integration-tests.yml

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+# https://help.github.com/en/categories/automating-your-workflow-with-github-actions
+
+name: "Integration tests"
+
+on:
+  pull_request:
+  push:
+    branches:
+      - "master"
+
+jobs:
+  test:
+    name: "Integration test"
+    runs-on: "ubuntu-latest"
+
+    strategy:
+      matrix:
+        php-version:
+          - "7.4"
+          - "8.0"
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
+
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          php-version: "${{ matrix.php-version }}"
+
+      - name: "Install dependencies"
+        working-directory: "e2e"
+        run: "composer install --no-interaction --no-progress --no-suggest"
+
+      - name: "Test"
+        working-directory: "e2e"
+        run: "vendor/bin/phpstan analyse -l 8 FooTest.php"
+
+      - name: "Rename directory"
+        run: "mv e2e e3e"
+
+      - name: "Test relative paths - after renaming"
+        working-directory: "e3e"
+        run: "vendor/bin/phpstan analyse -l 8 FooTest.php"

e2e/.gitignore

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+/composer.lock
+/vendor

e2e/FooTest.php

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+<?php
+
+namespace App;
+
+use PHPUnit\Framework\TestCase;
+
+class FooTest extends TestCase
+{
+
+	public function testFoo(?\stdClass $std): void
+	{
+		$this->assertNotNull($std);
+		$this->requireStd($std);
+	}
+
+	private function requireStd(\stdClass $std): void
+	{
+
+	}
+
+}

e2e/composer.json

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+{
+	"require": {
+		"phpstan/phpstan": "^0.12.62",
+		"phpstan/extension-installer": "dev-master",
+		"phpstan/phpstan-phpunit": "^0.12.17",
+		"phpunit/phpunit": "^9.5"
+	},
+	"repositories": [
+		{
+			"type": "path",
+			"url": "..",
+			"options": {
+				"symlink": false
+			}
+		}
+	]
+}