Trouble with my testing database

Hi, I am using Pest for testing and now I am having trouble related to the database. The trouble is I removed a foreign key from my table (the migration ran successfully). But when running the test cases related to this database change I get this error:

This database driver does not support dropping foreign keys.

Why is that? My local database did run this migration successfully. If I delete the migration file I get another error related to the user_id not being added when created a new wishlist.

So my question is basically, is there a way to clear the database used for testing?

Here is my migration file:

return new class extends Migration
{
    /**
     * Run the migrations.
     */
    public function up(): void
    {
        Schema::table('wishlists', function (Blueprint $table) {
            $table->dropForeign(['user_id']);
            $table->dropColumn('user_id');
        });
    }

    /**
     * Reverse the migrations.
     */
    public function down(): void
    {
        Schema::table('wishlists', function (Blueprint $table) {
            $table->unsignedBigInteger('user_id');
            $table->foreign('user_id')
                ->references('id')
                ->on('users')
                ->onDelete('cascade');
        });
    }
};

tykus

1 year ago

Best Answer

Level 104

You cannot drop a foreign key on a SQLite database

https://github.com/laravel/framework/blob/11.x/src/Illuminate/Database/Schema/Grammars/SQLiteGrammar.php#L538

You could try squashing the migrations so it effectively never exists

hjortur17

1 year ago

Level 14

@tykus - It solved my problem squashing the migrations

LaryAI

1 year ago

Level 58

The issue you're encountering is likely due to the testing database not being in sync with your local development database. When running tests, especially with a tool like Pest, it's important to ensure that your testing database schema is up-to-date with your migrations.

Here are some steps you can take to resolve this issue:

Refresh the Testing Database: You can refresh your testing database to ensure it reflects the latest migrations. You can do this by running the following Artisan command:
```
php artisan migrate:fresh --env=testing
```
This command will drop all tables and re-run all migrations for the testing environment.
Check Your Testing Environment Configuration: Ensure that your phpunit.xml or pest.php configuration file is correctly set up to use the testing database. The DB_CONNECTION should point to your testing database.
Use In-Memory Database for Testing: If you're using SQLite for testing, you can use an in-memory database, which is often faster and easier to manage. Update your phpunit.xml or pest.php to use an in-memory SQLite database:
```
<env name="DB_CONNECTION" value="sqlite"/>
<env name="DB_DATABASE" value=":memory:"/>
```
Ensure Migrations are Up-to-Date: Make sure all your migrations are up-to-date and that there are no pending migrations. You can check this by running:
```
php artisan migrate:status
```
Clear Cache: Sometimes, cached configurations can cause issues. Clear the cache using:
```
php artisan config:cache
php artisan config:clear
```

By following these steps, you should be able to resolve the issue with your testing database and ensure that your tests run smoothly. If the problem persists, double-check your migration files and ensure there are no syntax errors or logical issues.

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