Why laravel assertions are not called from closure? - laravel

Question

My code is:
public function testOne()
{
$mail = ['subject' => 'My subject'];
$this->assertEquals(1, 1);
$mock = Mockery::mock(\Illuminate\Support\Facades\Mail::getSwiftMailer());
$this->app['mailer']->setSwiftMailer($mock);
$msg = $mock->shouldReceive('send')->once()->andReturnUsing(function($msg) {
echo $msg->getSubject();
$this->assertEquals($mail['subject'], $msg->getSubject());
});
$this->assertEquals(1, 1);
}
I get output:
PHPUnit 4.8.24 by Sebastian Bergmann and contributors.
My subject
Time: 852 ms, Memory: 26.00Mb
OK (1 test, 2 assertions)
I see from output:
echo $msg->getSubject();
that I get good subject but nothing is asserted, why?

Answer 1

Use like this
public function testOne()
{
$mail = ['subject' => 'My subject'];
$this->assertEquals(1, 1);
$mock = Mockery::mock(\Illuminate\Support\Facades\Mail::getSwiftMailer());
$this->app['mailer']->setSwiftMailer($mock);
$obj = $this;
$msg = $mock->shouldReceive('send')->once()->andReturnUsing(function($msg) use ($obj, $mail) {
echo $msg->getSubject();
$obj->assertEquals($mail['subject'], $msg->getSubject());
});
$this->assertEquals(1, 1);
}
Inside your closure it's an instance of Closure so it will not get $this from there for that you have to assign to another variable & use it.
But you can rewrite your tests like this
public function testOne()
{
$mail = ['subject' => 'My subject'];
$this->assertEquals(1, 1);
$mock = Mockery::mock(\Illuminate\Support\Facades\Mail::getSwiftMailer());
$this->app['mailer']->setSwiftMailer($mock);
$message = null;
$mock->shouldReceive('send')->once()->andReturnUsing(function($msg) use ($message) {
$message = $msg->getSubject();
});
$this->assertEquals($mail['subject'], $message);
$this->assertEquals(1, 1);
}