Add comprehensive PHP integration tests for validation

tests/php/tests/ValidationTest.php

@@ -0,0 +1,272 @@
+<?php
+
+namespace Attributes\Validation\Tests;
+
+use Attributes\Validation\BaseModel;
+use Attributes\Validation\ModelConfigs;
+use Attributes\Validation\Exceptions\ValidationException;
+
+use function Attributes\Validation\validate;
+
+// ============= Basic Type Validation Tests =============
+
+it('validates and coerces integer properties', function () {
+    $model = new class extends BaseModel {
+        public int $age;
+    };
+
+    $result = validate(['age' => '25'], $model);
+
+    expect($result->age)->toBeInt()->toBe(25);
+});
+
+it('validates and coerces float properties', function () {
+    $model = new class extends BaseModel {
+        public float $price;
+    };
+
+    $result = validate(['price' => '19.99'], $model);
+
+    expect($result->price)->toBeFloat()->toBe(19.99);
+});
+
+it('validates and coerces string properties', function () {
+    $model = new class extends BaseModel {
+        public string $name;
+    };
+
+    $result = validate(['name' => 123], $model);
+
+    expect($result->name)->toBeString()->toBe('123');
+});
+
+it('validates and coerces boolean properties', function () {
+    $model = new class extends BaseModel {
+        public bool $active;
+    };
+
+    $result = validate(['active' => '1'], $model);
+
+    expect($result->active)->toBeBool()->toBeTrue();
+
+    $result2 = validate(['active' => '0'], $model);
+    expect($result2->active)->toBeBool()->toBeFalse();
+});
+
+// ============= Nullable Type Tests =============
+
+it('validates nullable properties with null value', function () {
+    $model = new class extends BaseModel {
+        public ?string $name;
+    };
+
+    $result = validate(['name' => null], $model);
+
+    expect($result->name)->toBeNull();
+});
+
+it('validates nullable properties with actual value', function () {
+    $model = new class extends BaseModel {
+        public ?string $name;
+    };
+
+    $result = validate(['name' => 'John'], $model);
+
+    expect($result->name)->toBeString()->toBe('John');
+});
+
+it('fails validation when nullable property is missing and not nullable', function () {
+    $model = new class extends BaseModel {
+        public string $name;
+    };
+
+    try {
+        validate([], $model);
+        expect(false)->toBeTrue('Expected ValidationException to be thrown');
+    } catch (ValidationException $e) {
+        expect($e->getErrors())->toHaveKey('name');
+    }
+});
+
+// ============= Strict Mode Tests =============
+
+it('fails validation in strict mode when types do not match', function () {
+    $model = new class extends BaseModel {
+        #[ModelConfigs(strict: true)]
+        public int $age;
+    };
+
+    try {
+        validate(['age' => '25'], $model);
+        expect(false)->toBeTrue('Expected ValidationException to be thrown');
+    } catch (ValidationException $e) {
+        expect($e->getErrors())->toHaveKey('age');
+    }
+});
+
+it('passes validation in strict mode when types match', function () {
+    $model = new class extends BaseModel {
+        #[ModelConfigs(strict: true)]
+        public int $age;
+    };
+
+    $result = validate(['age' => 25], $model);
+
+    expect($result->age)->toBeInt()->toBe(25);
+});
+
+// ============= Multiple Properties Tests =============
+
+it('validates multiple properties correctly', function () {
+    $model = new class extends BaseModel {
+        public int $age;
+        public string $name;
+        public float $price;
+        public bool $active;
+    };
+
+    $result = validate([
+        'age' => '30',
+        'name' => 123,
+        'price' => '29.99',
+        'active' => '1'
+    ], $model);
+
+    expect($result->age)->toBeInt()->toBe(30);
+    expect($result->name)->toBeString()->toBe('123');
+    expect($result->price)->toBeFloat()->toBe(29.99);
+    expect($result->active)->toBeBool()->toBeTrue();
+});
+
+// ============= Missing Required Fields Tests =============
+
+it('fails when required field is missing', function () {
+    $model = new class extends BaseModel {
+        public string $name;
+        public int $age;
+    };
+
+    try {
+        validate(['name' => 'John'], $model);
+        expect(false)->toBeTrue('Expected ValidationException to be thrown');
+    } catch (ValidationException $e) {
+        expect($e->getErrors())->toHaveKey('age');
+    }
+});
+
+it('fails when multiple required fields are missing', function () {
+    $model = new class extends BaseModel {
+        public string $name;
+        public int $age;
+        public float $price;
+    };
+
+    try {
+        validate([], $model);
+        expect(false)->toBeTrue('Expected ValidationException to be thrown');
+    } catch (ValidationException $e) {
+        $errors = $e->getErrors();
+        expect($errors)->toHaveKey('name');
+        expect($errors)->toHaveKey('age');
+        expect($errors)->toHaveKey('price');
+    }
+});
+
+// ============= Stop at First Error Tests =============
+
+it('stops at first error when configured', function () {
+    $model = new class extends BaseModel {
+        #[ModelConfigs(stopAtFirstError: true)]
+        public string $name;
+        public int $age;
+    };
+
+    try {
+        validate([], $model);
+        expect(false)->toBeTrue('Expected ValidationException to be thrown');
+    } catch (ValidationException $e) {
+        $errors = $e->getErrors();
+        // Should only have one error due to stopAtFirstError
+        expect(count($errors))->toBe(1);
+    }
+});
+
+it('collects all errors when not configured to stop', function () {
+    $model = new class extends BaseModel {
+        #[ModelConfigs(stopAtFirstError: false)]
+        public string $name;
+        public int $age;
+    };
+
+    try {
+        validate([], $model);
+        expect(false)->toBeTrue('Expected ValidationException to be thrown');
+    } catch (ValidationException $e) {
+        $errors = $e->getErrors();
+        // Should have both errors
+        expect(count($errors))->toBe(2);
+    }
+});
+
+// ============= Inheritance Tests =============
+
+class ParentModel extends BaseModel
+{
+    public string $parentField;
+}
+
+it('validates inherited properties', function () {
+    $model = new class extends ParentModel {
+        public int $childField;
+    };
+
+    $result = validate([
+        'parentField' => 'parent',
+        'childField' => '42'
+    ], $model);
+
+    expect($result->parentField)->toBeString()->toBe('parent');
+    expect($result->childField)->toBeInt()->toBe(42);
+});
+
+// ============= Alias Tests =============
+
+use Attributes\Validation\Fields\Alias;
+
+it('validates with alias attribute', function () {
+    $model = new class extends BaseModel {
+        #[Alias('user_name')]
+        public string $name;
+    };
+
+    $result = validate(['user_name' => 'John'], $model);
+
+    expect($result->name)->toBeString()->toBe('John');
+});
+
+it('fails when using property name instead of alias', function () {
+    $model = new class extends BaseModel {
+        #[Alias('user_name')]
+        public string $name;
+    };
+
+    try {
+        validate(['name' => 'John'], $model);
+        expect(false)->toBeTrue('Expected ValidationException to be thrown');
+    } catch (ValidationException $e) {
+        expect($e->getErrors())->toHaveKey('user_name');
+    }
+});
+
+// ============= ModelConfigs Tests =============
+
+it('validates with aliasGenerator in ModelConfigs', function () {
+    $model = new class extends BaseModel {
+        #[ModelConfigs(aliasGenerator: 'snake')]
+        public string $firstName;
+    };
+
+    $result = validate(['first_name' => 'John'], $model);
+
+    expect($result->firstName)->toBeString()->toBe('John');
+});