PHP Unit, Testing laravel log messages with unit testing - php

Question

I'm using PHPUnit to create a Unit test for a store function that stores data in a database.
Currently, i have a test verifies that it has stored data.
However, I also want to create a test that proves that a laravel log message has been produced if the model save function fails.
The code below shows the store function. The "log::info" is the line I want to test.
Thanks.
public function store(Venue $venue){
$saved = $venue->save();
if($saved == false){
Log::info('Failed to Save Venue'. $venue);
}
}
This what I have so far, i pass an empty model that will cause the save to fail due to database constraints
public function test_venue_store_failed(){
$venue = new Venue();
$venueRepo = new VenueRepository();
$this->withExceptionHandling();
$venueRepo->store($venue);
}

Answer 1

You can mock the Log facade in your unit test as follows, as per the docs:
public function test_venue_store_failed(){
$venue = new Venue();
Log::shouldReceive('info')
->with('Failed to Save Venue'. $venue);
$venueRepo = new VenueRepository();
$this->withExceptionHandling();
$venueRepo->store($venue);
}

Answer 2

Maybe you can use event listener on Models.
using this you can get logs on Create or other Events.
Check out the Example Below.
Hope to help .
Info 1.
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
use User;
class Venue extends Model
{
protected $fillable = ['title', 'ect..'];
public static function boot() {
parent::boot();
static::created(function($item) {
\Log::info('venue.created');
});
static::updated(function($item) {
\Log::info('venue.created');
});
static::deleted(function($item) {
\Log::info('venue.created');
});
}
}
Info 2.
Also there is an exists method on model
if ($venue->exists()) {
// saved
} else {
// not saved
}
Info 3
To get the insert queries when $venue->save(); error, you can try to catch the exception like this:
try{
$venue = new Venue;
$venue->fields = 'example';
$venue->save(); // returns false
}
catch(\Exception $e){
// do task when error
\Log::info($e->getMessage()); // insert query
}
Hope this helps :)