test: re-add original tests

tests/Kernel/Validator/ConfigurationValidatorTest.php

@@ -0,0 +1,101 @@
+<?php
+
+namespace App\Tests;
+
+use App\DataTransferObject\Config;
+use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
+use Symfony\Component\Serializer\Encoder\JsonEncoder;
+use Symfony\Component\Serializer\NameConverter\CamelCaseToSnakeCaseNameConverter;
+use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
+use Symfony\Component\Serializer\Serializer;
+use Symfony\Component\Serializer\SerializerInterface;
+use Symfony\Component\Validator\Validation;
+use Symfony\Component\Validator\Validator\ValidatorInterface;
+
+class ConfigurationValidatorTest extends KernelTestCase
+{
+    private SerializerInterface $serializer;
+
+    private ValidatorInterface $validator;
+
+    public function setUp(): void
+    {
+        $normalizer = new ObjectNormalizer(null, new CamelCaseToSnakeCaseNameConverter());
+
+        $this->serializer = new Serializer([$normalizer], [new JsonEncoder()]);
+
+        $this->validator = Validation::createValidatorBuilder()->enableAnnotationMapping()->getValidator();
+    }
+
+    /**
+     * @dataProvider projectNameProvider
+     * @test
+     */
+    public function project_name_should_be_a_string(string|int|bool|null $projectName, int $expectedViolationCount): void
+    {
+        $configurationData = [
+            'language' => 'php',
+            'name' => $projectName,
+            'type' => 'drupal',
+        ];
+
+        $configurationDataDto = $this->createConfigurationDTO($configurationData);
+
+        $violations = $this->validator->validate($configurationDataDto);
+
+        self::assertCount(
+            expectedCount: $expectedViolationCount,
+            haystack: $violations,
+        );
+    }
+
+    /**
+     * @dataProvider projectLanguageProvider
+     * @test
+     */
+    public function the_project_language_should_be_a_supported_language(string|int|bool|null $language, int $expectedViolationCount): void
+    {
+        $configurationData = [
+            'language' => $language,
+            'name' => 'test',
+            'type' => 'drupal',
+        ];
+
+        $configurationDataDto = $this->createConfigurationDTO($configurationData);
+
+        $violations = $this->validator->validate($configurationDataDto);
+
+        self::assertCount(
+            expectedCount: $expectedViolationCount,
+            haystack: $violations,
+        );
+    }
+
+    public function projectLanguageProvider(): \Generator
+    {
+        return [
+            yield 'Supported language string' => ['php', 0],
+            yield 'Non-supported language string' => ['not-supported', 1],
+            yield 'Empty string' => ['', 1],
+            yield 'True' => [true, 1],
+            yield 'False' => [false, 1],
+            // yield 'Integer' => [1, 2],
+            // yield 'Null' => [null, 1],
+        ];
+    }
+
+    public function projectNameProvider(): \Generator
+    {
+        return [
+            yield 'Non-empty string' => ['test', 0],
+            yield 'Empty string' => ['', 1],
+            yield 'False' => [false, 1],
+            // yield 'Null' => [null, 1],
+        ];
+    }
+
+    private function createConfigurationDTO(array $configurationData): Config
+    {
+        return $this->serializer->deserialize(json_encode($configurationData), Config::class, 'json');
+    }
+}