Fake in Packages: Laravel Excel Example

After repeating many examples with Laravel Facades and their fake() method in this course chapter, I will show you one more thing. Some Laravel/PHP packages have their own implementation of faking.

Package Example

For example, a popular package Laravel Excel can be faked in the test. An example from the docs for testing Excel exporting:

/**
* @test
*/
public function user_can_download_invoices_export()
{
    Excel::fake(); // [tl ~~]
 
    $this->actingAs($this->givenUser())
         ->get('/invoices/download/xlsx');
 
    Excel::assertDownloaded('filename.xlsx', function(InvoicesExport $export) { 
        // Assert that the correct export is downloaded.
        return $export->collection()->contains('#2018-01');
    });
}

An example from the docs for testing Excel importing:

/**
* @test
*/
public function user_can_import_users()
{
    Excel::fake();
 
    $this->actingAs($this->givenUser())
         ->get('/users/import/xlsx');
 
    Excel::assertImported('filename.xlsx', 'diskName');
 
    Excel::assertImported('filename.xlsx', 'diskName', function(UsersImport $import) {
        return true;
    });
 
    // When passing the callback as 2nd param, the disk will be the default disk.
    Excel::assertImported('filename.xlsx', function(UsersImport $import) {
        return true;
    });
}

There are more assertions for exporting and importing. Check the documentation.

Open-Source Example

Let's examine a real-world example from an open-source akaunting/akaunting project.

There are...