[U3][LinhNQ] Exercise 3

tests/Unit/Modules/Exercise03/Http/Controllers/ProductControllerTest.php

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+<?php
+
+namespace Tests\Unit\Modules\Exercise03\Http\Controllers;
+
+use Illuminate\Http\Response;
+use Illuminate\View\View;
+use Mockery;
+use Modules\Exercise03\Http\Controllers\ProductController;
+use Modules\Exercise03\Http\Requests\CheckoutRequest;
+use Modules\Exercise03\Services\ProductService;
+use Tests\TestCase;
+
+class ProductControllerTest extends TestCase
+{
+    protected $productService;
+    protected $productController;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        $this->productService = Mockery::mock(ProductService::class)->makePartial();
+        $this->productController = new ProductController($this->productService);
+    }
+
+    public function test_index()
+    {
+        $this->productService->shouldReceive('getAllProducts')->andReturn([]);
+
+        $response = $this->productController->index();
+
+        $this->assertInstanceOf(View::class, $response);
+    }
+
+    public function test_checkout()
+    {
+        $request = new CheckoutRequest([
+            'total_products' => [],
+        ]);
+
+        $this->productService->shouldReceive('calculateDiscount')->andReturn(0);
+
+        $response = $this->productController->checkout($request);
+
+        $this->assertEquals(Response::HTTP_OK, $response->getStatusCode());
+    }
+}

tests/Unit/Modules/Exercise03/Services/ProductServiceTest.php

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+<?php
+
+namespace Tests\Unit\Modules\Exercise03\Services;
+
+use Illuminate\Support\Collection;
+use Mockery;
+use InvalidArgumentException;
+use Modules\Exercise03\Models\Product;
+use Modules\Exercise03\Repositories\ProductRepository;
+use Modules\Exercise03\Services\ProductService;
+use Tests\TestCase;
+
+class ProductServiceTest extends TestCase
+{
+    protected $productRepository;
+    protected $productService;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        $this->productRepository = Mockery::mock(ProductRepository::class)->makePartial();
+        $this->productService = new ProductService($this->productRepository);
+    }
+
+    public function test_get_all_products()
+    {
+        $this->productRepository->shouldReceive('all')->andReturn(collect([]));
+
+        $this->assertInstanceOf(Collection::class, $this->productService->getAllProducts());
+    }
+
+    public function test_not_valid_quantity()
+    {
+        $totalProducts = [
+            Product::CRAVAT_TYPE => -1,
+            Product::WHITE_SHIRT_TYPE => 0,
+            Product::OTHER_TYPE => 0,
+        ];
+        $this->expectException(InvalidArgumentException::class);
+        $this->productService->calculateDiscount($totalProducts);
+    }
+
+    public function test_calculate_discount_total_product_lower_than_7_no_white_shirt_no_tie()
+    {
+        $totalProducts = [
+            Product::CRAVAT_TYPE => 0,
+            Product::WHITE_SHIRT_TYPE => 0,
+            Product::OTHER_TYPE => 0,
+        ];
+
+        $discount = $this->productService->calculateDiscount($totalProducts);
+
+        $this->assertEquals(0, $discount);
+    }
+
+    public function test_calculate_discount_total_product_lower_than_7_no_white_shirt_but_have_tie()
+    {
+        $totalProducts = [
+            Product::CRAVAT_TYPE => 1,
+            Product::WHITE_SHIRT_TYPE => 0,
+            Product::OTHER_TYPE => 0,
+        ];
+
+        $discount = $this->productService->calculateDiscount($totalProducts);
+
+        $this->assertEquals(0, $discount);
+    }
+
+    public function test_calculate_discount_total_product_lower_than_7_have_white_shirt_no_tie()
+    {
+        $totalProducts = [
+            Product::CRAVAT_TYPE => 0,
+            Product::WHITE_SHIRT_TYPE => 1,
+            Product::OTHER_TYPE => 0,
+        ];
+
+        $discount = $this->productService->calculateDiscount($totalProducts);
+
+        $this->assertEquals(0, $discount);
+    }
+
+    public function test_calculate_discount_total_product_lower_than_7_have_white_shirt_and_tie()
+    {
+        $totalProducts = [
+            Product::CRAVAT_TYPE => 1,
+            Product::WHITE_SHIRT_TYPE => 1,
+            Product::OTHER_TYPE => 0,
+        ];
+
+        $discount = $this->productService->calculateDiscount($totalProducts);
+
+        $this->assertEquals(5, $discount);
+    }
+
+    public function test_calculate_discount_total_product_bigger_or_equal_7_no_white_shirt_no_tie()
+    {
+        $totalProducts = [
+            Product::CRAVAT_TYPE => 0,
+            Product::WHITE_SHIRT_TYPE => 0,
+            Product::OTHER_TYPE => 7,
+        ];
+
+        $discount = $this->productService->calculateDiscount($totalProducts);
+
+        $this->assertEquals(7, $discount);
+    }
+
+    public function test_calculate_discount_total_product_bigger_or_equal_7_no_white_shirt_but_have_tie()
+    {
+        $totalProducts = [
+            Product::CRAVAT_TYPE => 0,
+            Product::WHITE_SHIRT_TYPE => 1,
+            Product::OTHER_TYPE => 7,
+        ];
+
+        $discount = $this->productService->calculateDiscount($totalProducts);
+
+        $this->assertEquals(7, $discount);
+    }
+
+    public function test_calculate_discount_total_product_bigger_or_equal_7_have_white_shirt_no_tie()
+    {
+        $totalProducts = [
+            Product::CRAVAT_TYPE => 1,
+            Product::WHITE_SHIRT_TYPE => 0,
+            Product::OTHER_TYPE => 7,
+        ];
+
+        $discount = $this->productService->calculateDiscount($totalProducts);
+
+        $this->assertEquals(7, $discount);
+    }
+
+    public function test_calculate_discount_total_product_bigger_or_equal_7_have_white_shirt_and_tie()
+    {
+        $totalProducts = [
+            Product::CRAVAT_TYPE => 1,
+            Product::WHITE_SHIRT_TYPE => 1,
+            Product::OTHER_TYPE => 7,
+        ];
+
+        $discount = $this->productService->calculateDiscount($totalProducts);
+
+        $this->assertEquals(12, $discount);
+    }
+}