Tests: add separate configuration file for PHPUnit 10

.gitattributes

@@ -14,6 +14,7 @@
 /.remarkignore export-ignore
 /.remarkrc export-ignore
 /phpunit.xml.dist export-ignore
+/phpunit10.xml.dist export-ignore
 /tests/ export-ignore
 
 #

.github/workflows/test.yml

@@ -108,11 +108,18 @@ jobs:
           # Bust the cache at least once a month - output format: YYYY-MM.
           custom-cache-suffix: $(date -u "+%Y-%m")
 
-      - name: Run the unit tests
-        if: ${{ matrix.phpunit != '^10.0' }}
+      - name: Grab PHPUnit version
+        id: phpunit_version
+        run: echo "VERSION=$(vendor/bin/phpunit --version | grep --only-matching --max-count=1 --extended-regexp '\b[0-9]+\.[0-9]+')" >> $GITHUB_OUTPUT
+
+      - name: "DEBUG: Show grabbed version"
+        run: echo ${{ steps.phpunit_version.outputs.VERSION }}
+
+      - name: "Run the unit tests (PHPUnit < 10)"
+        if: ${{ ! startsWith( steps.phpunit_version.outputs.VERSION, '10.' ) }}
         run: composer test
 
-      - name: Trial run the unit tests against PHPUnit 10.0
-        if: ${{ matrix.phpunit == '^10.0' }}
+      - name: "Trial run the unit tests against PHPUnit 10.0"
+        if: ${{ startsWith( steps.phpunit_version.outputs.VERSION, '10.' ) }}
         continue-on-error: true
-        run: composer test
+        run: composer test10

.gitignore

@@ -5,5 +5,6 @@ vendor/
 /phpcs.xml
 .cache/phpcs.cache
 /phpunit.xml
+/phpunit10.xml
 /.phpunit.result.cache
 /build/

composer.json

@@ -68,6 +68,12 @@
         ],
         "coverage": [
             "@php ./vendor/phpunit/phpunit/phpunit"
+        ],
+        "test10": [
+            "@php ./vendor/phpunit/phpunit/phpunit -c phpunit10.xml.dist --no-coverage"
+        ],
+        "coverage10": [
+            "@php ./vendor/phpunit/phpunit/phpunit -c phpunit10.xml.dist"
         ]
     }
 }

phpunit10.xml.dist

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.0/phpunit.xsd"
+    backupGlobals="true"
+    bootstrap="./tests/bootstrap.php"
+    beStrictAboutOutputDuringTests="true"
+    beStrictAboutTestsThatDoNotTestAnything="true"
+    colors="true"
+    cacheDirectory=".cache/phpcs.cache"
+    requireCoverageMetadata="true"
+    displayDetailsOnTestsThatTriggerErrors="true"
+    displayDetailsOnTestsThatTriggerWarnings="true"
+    displayDetailsOnTestsThatTriggerNotices="true"
+    displayDetailsOnTestsThatTriggerDeprecations="true"
+    >
+
+    <testsuites>
+        <testsuite name="PHPUnitPolyfills">
+            <directory suffix="Test.php">./tests/</directory>
+        </testsuite>
+    </testsuites>
+
+    <coverage includeUncoveredFiles="true">
+        <include>
+            <directory suffix=".php">./src/</directory>
+        </include>
+        <exclude>
+            <file>src/Polyfills/AssertClosedResource_Empty.php</file>
+        </exclude>
+        <report>
+            <clover outputFile="build/logs/clover.xml"/>
+        </report>
+    </coverage>
+
+</phpunit>