Enhancement: Run phpunit/phpunit on GitHub Actions

Author: localheinz

.editorconfig

@@ -2,3 +2,9 @@ root = true
 
 [*]
 insert_final_newline = true
+
+[*.yaml]
+charset = utf-8
+indent_size = 2
+indent_style = space
+trim_trailing_whitespace = true

.github/workflows/integrate.yaml

@@ -0,0 +1,40 @@
+# https://docs.github.com/en/actions
+
+name: "Integrate"
+
+on:
+  pull_request: null
+  push:
+    branches:
+      - "master"
+
+jobs:
+  tests:
+    name: "Tests"
+
+    runs-on: "ubuntu-latest"
+
+    strategy:
+      matrix:
+        php-version:
+          - "7.4"
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v3"
+
+      - name: "Set up PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          extensions: "none, dom, json, mbstring, tokenizer, xml, xmlwriter"
+          php-version: "${{ matrix.php-version }}"
+
+      - name: "Set up problem matchers for PHP"
+        run: "echo \"::add-matcher::${{ runner.tool_cache }}/php.json\""
+
+      - name: "Set up problem matchers for phpunit/phpunit"
+        run: "echo \"::add-matcher::${{ runner.tool_cache }}/phpunit.json\""
+
+      - name: "Run phpunit/phpunit"
+        run: ".phive/phpunit --colors=always --configuration=test/phpunit.xml"

.gitignore

@@ -6,3 +6,4 @@ backend/GeoIP.dat
 .idea
 .DS_Store
 .DS_Store?
+.phpunit.result.cache

.phive/phars.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phive xmlns="https://phar.io/phive">
+  <phar name="phpunit" version="^9.5.20" installed="9.5.20" location="./.phive/phpunit" copy="true"/>
+</phive>