feat: Add mutation testing configuration and update PHPUnit schema location.

.github/workflows/mutation.yml

@@ -0,0 +1,27 @@
+on:
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
+      - 'README.md'
+      - 'CHANGELOG.md'
+      - '.gitignore'
+      - '.gitattributes'
+
+  push:
+    paths-ignore:
+      - 'docs/**'
+      - 'README.md'
+      - 'CHANGELOG.md'
+      - '.gitignore'
+      - '.gitattributes'
+
+name: mutation test
+
+jobs:
+  mutation:
+    uses: php-forge/actions/.github/workflows/infection.yml@main
+    with:
+      command-options: --static-analysis-tool=phpstan --threads=2 --ignore-msi-with-no-mutations --only-covered
+      composer-command: composer require --dev infection/infection:dev-master
+    secrets:
+      STRYKER_DASHBOARD_API_KEY: ${{ secrets.STRYKER_DASHBOARD_API_KEY }}

composer.json

@@ -41,13 +41,15 @@
     "config": {
         "sort-packages": true,
         "allow-plugins": {
+            "infection/extension-installer": true,
             "phpstan/extension-installer": true,
             "yiisoft/yii2-composer": true
         }
     },
     "scripts": {
         "check-dependencies": "./vendor/bin/composer-require-checker check",
         "ecs": "./vendor/bin/ecs --fix",
+        "mutation": "./vendor/bin/infection --threads=4 --ignore-msi-with-no-mutations --only-covered --min-msi=100 --min-covered-msi=100",
         "rector": "./vendor/bin/rector process src",
         "static": "./vendor/bin/phpstan --memory-limit=512M",
         "tests": "./vendor/bin/phpunit"

infection.json.dist → infection.json5

@@ -1,16 +1,14 @@
 {
-    "source": {
-        "directories": [
-            "src"
-        ]
-    },
+    "$schema": "vendor/infection/infection/resources/schema.json",
     "logs": {
         "text": "php:\/\/stderr",
         "stryker": {
             "report": "main"
         }
     },
-    "mutators": {
-        "@default": true
+    "source": {
+        "directories": [
+            "src"
+        ]
     }
 }

phpunit.xml.dist

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.2/phpunit.xsd"
+    xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
     bootstrap="tests/bootstrap.php"
     cacheDirectory="runtime/.phpunit.cache"
     colors="true"

tests/NestedSetsBehaviorTest.php

@@ -1620,4 +1620,54 @@ public function makeRoot(): bool
 
         $node->makeRoot();
     }
+
+    public function testAfterDeleteShiftsLeftRightAttributesCorrectly(): void
+    {
+        $this->generateFixtureTree();
+
+        $nodeToDelete = Tree::findOne(4);
+
+        self::assertNotNull($nodeToDelete);
+        self::assertTrue($nodeToDelete->isLeaf());
+        self::assertEquals(4, $nodeToDelete->getAttribute('lft'));
+        self::assertEquals(5, $nodeToDelete->getAttribute('rgt'));
+
+        $node5 = Tree::findOne(5);
+
+        self::assertNotNull($node5);
+        self::assertEquals(6, $node5->getAttribute('lft'));
+        self::assertEquals(7, $node5->getAttribute('rgt'));
+
+        $node6 = Tree::findOne(6);
+
+        self::assertNotNull($node6);
+        self::assertEquals(9, $node6->getAttribute('lft'));
+        self::assertEquals(14, $node6->getAttribute('rgt'));
+
+        $node3 = Tree::findOne(3);
+
+        self::assertNotNull($node3);
+        self::assertEquals(3, $node3->getAttribute('lft'));
+        self::assertEquals(8, $node3->getAttribute('rgt'));
+
+        $result = $nodeToDelete->delete();
+
+        self::assertEquals(1, $result);
+        self::assertNull(Tree::findOne(4));
+
+        $node5->refresh();
+
+        self::assertEquals(4, $node5->getAttribute('lft'));
+        self::assertEquals(5, $node5->getAttribute('rgt'));
+
+        $node6->refresh();
+
+        self::assertEquals(7, $node6->getAttribute('lft'));
+        self::assertEquals(12, $node6->getAttribute('rgt'));
+
+        $node3->refresh();
+
+        self::assertEquals(3, $node3->getAttribute('lft'));
+        self::assertEquals(6, $node3->getAttribute('rgt'));
+    }
 }