PostTestCase File

PostTest.php

<?php

namespace Tests\Unit;

use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;
use App\Models\Post;

class PostTest extends TestCase
{
    use RefreshDatabase;

    public function test_store_validation_error()
    {
        $response = $this->post(route('posts.store'), [
          //  'title' => '',  // Empty title
          //  'body' => '',  // Empty body
        ]);

        // Assert that the response has validation errors for both fields
        $response->assertSessionHasErrors(['title', 'body']);
        // Assert that the specific validation error message for 'title' is present
        $response->assertSessionHasErrors(['title' => 'The title field is required.']);
        // Assert that the specific validation error message for 'body' is present
        $response->assertSessionHasErrors(['body' => 'The body field is required.']);
    }

    /**
     * Test that a post is successfully created with valid data.
     *
     * @return void
     */
    public function test_store_success()
    {
        // Valid post data to simulate a successful store operation
        $data = [
            'title' => 'A Valid Post Title',  // Valid title
            'body'  => 'This is a valid post body content.',  // Valid body
        ];

        // Send a POST request to store the post
        $response = $this->post(route('posts.store'), $data);

        // Assert that the post was created in the database
        $this->assertDatabaseHas('posts', [
            'title' => 'A Valid Post Title',  // Check if the post title exists in the database
            'body'  => 'This is a valid post body content.',  // Check if the post body exists in the database
        ]);

        // Assert that the response redirects to the posts index page (or the appropriate route)
        $response->assertRedirect(route('posts.index'));
    }

    /**
     * Test that a post is successfully deleted.
     *
     * @return void
     */
    public function test_delete_success()
    {
        // Create a post in the database to delete later
        $post = Post::factory()->create([
            'title' => 'Post to be deleted',
            'body' => 'This post will be deleted in the test.'
        ]);

        // Send a DELETE request to the destroy route
        $response = $this->delete(route('posts.destroy', $post->id));

        // Assert that the post was deleted from the database
        $this->assertDatabaseMissing('posts', [
            'id'    => $post->id,  // Check if the post with the given ID is no longer in the database
        ]);

        // Assert that the response redirects to the posts index page after deletion
        $response->assertRedirect(route('posts.index'));
    }
}