add dummy test + github action runner for phpunit

.github/workflows/tests.yml

@@ -0,0 +1,32 @@
+---
+name: Test jobs
+
+on:
+  - push
+  - pull_request
+  # Allow manually triggering the workflow.
+  - workflow_dispatch
+
+# Cancels all previous workflow runs for the same branch that have not yet completed.
+concurrency:
+  # The concurrency group contains the workflow name and the branch name.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  phpunit:
+    runs-on: ubuntu-20.04
+
+    strategy:
+      matrix:
+        php: ['8.0', '8.1']
+
+    steps:
+      - uses: actions/checkout@v3
+      - uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+      - uses: "ramsey/composer-install@v2"
+        with:
+          composer-options: --no-scripts
+      - run: bin/phpunit

composer.json

@@ -36,5 +36,8 @@
     "dev:example": "Run internal PHP development server with example code",
     "tests:unit": "Run unit-test with PHPUnit"
   },
-  "type": "library"
+  "type": "library",
+  "require-dev": {
+    "phpunit/phpunit": "^9"
+  }
 }

phpunit.xml.dist

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:noNamespaceSchemaLocation="./vendor/phpunit/phpunit/phpunit.xsd"
+
+    beStrictAboutCoversAnnotation="true"
+    beStrictAboutOutputDuringTests="true"
+    beStrictAboutTodoAnnotatedTests="true"
+    bootstrap="vendor/autoload.php"
+    cacheResultFile=".phpunit.cache/test-results"
+    convertDeprecationsToExceptions="true"
+    failOnRisky="true"
+    failOnWarning="true"
+    forceCoversAnnotation="true"
+    verbose="true"
+>
+    <testsuites>
+        <testsuite name="all">
+          <directory suffix=".php">tests/</directory>
+        </testsuite>
+    </testsuites>
+
+    <coverage processUncoveredFiles="false">
+        <include>
+            <directory suffix=".php">src/</directory>
+        </include>
+        <report>
+            <!-- clover outputFile="build/clover.xml"/ -->
+            <!-- html outputDirectory="build/coverage"/ -->
+            <text outputFile="php://stdout"/>
+        </report>
+    </coverage>
+</phpunit>

tests/dummyTest.php

@@ -0,0 +1,20 @@
+<?php
+/*
+    This file is here as an example and to make sure the github actions runner has a test to run.
+    It does not actually test anything.
+*/
+
+namespace Pdsinterop\Dummy;
+
+use PHPUnit\Framework\TestCase;
+
+class DummyTest extends TestCase
+{
+    /**
+     * @coversNothing
+     */
+    public function testDummy(): void
+    {
+        $this->assertTrue(true);
+    }
+}