Add CI run for test lowest installed deps

.github/workflows/ci.yml

@@ -54,6 +54,10 @@ jobs:
           composer self-update
           composer update --prefer-dist --optimize-autoloader --no-interaction --no-suggest ${{ matrix.composer-flags }}
 
+      - name: Check lowest dependencies
+        run: php tests/lowest-dependencies.php
+        if: ${{ matrix.composer-flags == '--prefer-lowest' }}
+
       - name: Run setup tests
         run: vendor/bin/phpunit --configuration tests/config/${{ matrix.db }}.phpunit.xml tests/Oro/Tests/Connection/SetupTest.php
 

.gitignore

@@ -2,3 +2,4 @@ phpunit.xml
 vendor/
 composer.lock
 .idea/
+.phpunit.cache/

tests/lowest-dependencies.php

@@ -0,0 +1,41 @@
+<?php
+
+$content = file_get_contents(dirname(__DIR__) . '/composer.lock');
+
+$dependencies = json_decode($content, true, \JSON_THROW_ON_ERROR);
+
+$expectedDependencies = [
+    'doctrine/annotations' => '1.14.0',
+    'doctrine/lexer' => '2.0.0',
+    'doctrine/dbal' => '3.3.6',
+    'doctrine/orm' => '2.19.0',
+];
+
+foreach ($expectedDependencies as $expectedDependency => $expectedVersion) {
+    $dependency = null;
+    foreach ([...$dependencies['packages'], ...$dependencies['packages-dev']] as $package) {
+        if ($package['name'] === $expectedDependency) {
+            $dependency = $package;
+            break;
+        }
+    }
+
+    if (null === $dependency) {
+        throw new RuntimeException('Missing dependency: ' . $expectedDependency);
+    }
+
+    $dependencyVersion = $dependency['version'];
+
+    if ($dependencyVersion !== $expectedVersion) {
+        throw new RuntimeException(
+            sprintf(
+                "Invalid version for %s. Expected: %s. Found: %s",
+                $expectedDependency,
+                $expectedVersion,
+                $dependencyVersion
+            )
+        );
+    }
+}
+
+echo 'All dependencies are correct.' . \PHP_EOL;