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laravel/tests/Feature/ExampleTest.php

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+<?php
+
+namespace Tests\Feature;
+
+// use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class ExampleTest extends TestCase
+{
+    /**
+     * A basic test example.
+     */
+    public function test_the_application_returns_a_successful_response(): void
+    {
+        $response = $this->get('/');
+
+        $response->assertStatus(200);
+    }
+}

laravel/tests/Feature/TaskControllerTest.php

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+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Feature;
+
+use App\Models\Tag;
+use App\Models\Task;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class TaskControllerTest extends TestCase
+{
+    use RefreshDatabase;
+
+    public function test_index_returns_tasks(): void
+    {
+        Task::factory(3)->create();
+
+        $response = $this->getJson(route('tasks.index'));
+
+        $response->assertOk()
+            ->assertJsonCount(3, 'data');
+    }
+
+    public function test_store_creates_task(): void
+    {
+        $payload = [
+            'title' => 'Новая задача',
+            'is_done' => false,
+            'due_at' => now()->addDay()->toIso8601ZuluString(),
+            'tags' => ['home', 'shopping'],
+        ];
+
+        $response = $this->postJson(route('tasks.store'), $payload);
+
+        $response->assertCreated()
+            ->assertJsonFragment([
+                'title' => 'Новая задача',
+                'is_done' => false,
+            ])
+            ->assertJsonCount(2, 'data.tags');
+
+        $this->assertDatabaseHas('tasks', [
+            'title' => 'Новая задача',
+        ]);
+
+        $this->assertDatabaseHas('tags', ['name' => 'home']);
+        $this->assertDatabaseHas('tags', ['name' => 'shopping']);
+    }
+
+    public function test_show_returns_task(): void
+    {
+        $task = Task::factory()->create();
+
+        $response = $this->getJson(route('tasks.show', $task));
+
+        $response->assertOk()
+            ->assertJsonPath('data.id', $task->id);
+    }
+
+    public function test_update_modifies_task(): void
+    {
+        $task = Task::factory()->create();
+
+        $payload = ['title' => 'Обновлённая задача', 'is_done' => true];
+
+        $response = $this->putJson(route('tasks.update', $task), $payload);
+
+        $response->assertOk()
+            ->assertJsonFragment([
+                'title' => 'Обновлённая задача',
+                'is_done' => true,
+            ]);
+
+        $this->assertDatabaseHas('tasks', [
+            'id' => $task->id,
+            'title' => 'Обновлённая задача',
+            'is_done' => true,
+        ]);
+    }
+
+    public function test_destroy_deletes_task(): void
+    {
+        $task = Task::factory()->create();
+
+        $response = $this->deleteJson(route('tasks.destroy', $task));
+
+        $response->assertNoContent();
+
+        $this->assertDatabaseMissing('tasks', [
+            'id' => $task->id,
+        ]);
+    }
+
+    public function test_can_filter_tasks_by_tag_and_is_done(): void
+    {
+        $tagWork = Tag::create(['name' => 'work']);
+        $tagHome = Tag::create(['name' => 'home']);
+
+        $task1 = Task::factory()->create(['is_done' => false]);
+        $task2 = Task::factory()->create(['is_done' => true]);
+        $task3 = Task::factory()->create(['is_done' => false]);
+
+        $task1->tags()->attach($tagWork->id);
+        $task2->tags()->attach($tagWork->id);
+        $task3->tags()->attach($tagHome->id);
+
+        $response = $this->getJson(route('tasks.index', ['tag' => 'work']));
+        $response->assertOk()
+            ->assertJsonCount(2, 'data');
+
+        $response = $this->getJson(route('tasks.index', ['is_done' => 0]));
+        $response->assertOk()
+            ->assertJsonCount(2, 'data');
+
+        $response = $this->getJson(route('tasks.index', ['is_done' => 1, 'tag' => 'work']));
+        $response->assertOk()
+            ->assertJsonCount(1, 'data')
+            ->assertJsonPath('data.0.id', $task2->id);
+    }
+}