Added output value tests. Added cast tests. Fixed value casting

src/Casts/TimezonedDatetime.php

@@ -37,7 +37,9 @@ public function __construct(?string $format = null)
      */
     public function get($model, $key, $value, $attributes)
     {
-        return Timezone::date($value, fn($raw, $tz) => $this->asDateTime($raw, $tz, $model));
+        $original = Timezone::store($value, fn($raw, $tz) => $this->asDateTime($raw, $tz, $model));
+
+        return Timezone::date($original);
     }
 
     /**
@@ -51,8 +53,9 @@ public function get($model, $key, $value, $attributes)
      */
     public function set($model, $key, $value, $attributes)
     {
-        return Timezone::store($value, fn($raw, $tz) => $this->asDateTime($raw, $tz, $model))
-            ->format($this->format ?? $model->getDateFormat());
+        $requested = Timezone::date($value, fn($raw, $tz) => $this->asDateTime($raw, $tz, $model));
+
+        return Timezone::store($requested)->format($this->format ?? $model->getDateFormat());
     }
 
     /**

tests/CastTest.php

@@ -0,0 +1,77 @@
+<?php
+
+use Whitecube\LaravelTimezones\Casts\TimezonedDatetime;
+
+it('can access UTC database date with application timezone', function() {
+    setupFacade();
+
+    $cast = new TimezonedDatetime();
+
+    $input = '2022-12-15 09:00:00';
+
+    $output = $cast->get(fakeModel(), 'id', $input, []);
+
+    expect($output->getTimezone()->getName())->toBe('Europe/Brussels');
+    expect($output->format('Y-m-d H:i:s'))->toBe('2022-12-15 10:00:00');
+});
+
+it('can access UTC database date with application timezone and specific format', function() {
+    setupFacade();
+
+    $cast = new TimezonedDatetime('d/m/Y H:i');
+
+    $input = '15/12/2022 09:00';
+
+    $output = $cast->get(fakeModel(), 'id', $input, []);
+
+    expect($output->getTimezone()->getName())->toBe('Europe/Brussels');
+    expect($output->format('Y-m-d H:i:s'))->toBe('2022-12-15 10:00:00');
+});
+
+it('can mutate application timezone datetime string to UTC database date string', function() {
+    setupFacade();
+
+    $cast = new TimezonedDatetime();
+
+    $input = '2022-12-15 10:00:00';
+
+    $output = $cast->set(fakeModel(), 'id', $input, []);
+
+    expect($output)->toBe('2022-12-15 09:00:00');
+});
+
+it('can mutate application timezone date instance to UTC database date string', function() {
+    setupFacade();
+
+    $cast = new TimezonedDatetime();
+
+    $input = new \Carbon\Carbon('2022-12-15 10:00:00', 'Europe/Brussels');
+
+    $output = $cast->set(fakeModel(), 'id', $input, []);
+
+    expect($output)->toBe('2022-12-15 09:00:00');
+});
+
+it('can mutate UTC date instance to UTC database date string', function() {
+    setupFacade();
+
+    $cast = new TimezonedDatetime();
+
+    $input = new \Carbon\Carbon('2022-12-15 09:00:00', 'UTC');
+
+    $output = $cast->set(fakeModel(), 'id', $input, []);
+
+    expect($output)->toBe('2022-12-15 09:00:00');
+});
+
+it('can mutate date instance with exotic timezone to UTC database date string', function() {
+    setupFacade();
+
+    $cast = new TimezonedDatetime();
+
+    $input = new \Carbon\Carbon('2022-12-15 04:00:00', 'America/Toronto');
+
+    $output = $cast->set(fakeModel(), 'id', $input, []);
+
+    expect($output)->toBe('2022-12-15 09:00:00');
+});

tests/Pest.php

@@ -1,5 +1,9 @@
 <?php
 
+use Whitecube\LaravelTimezones\Timezone;
+use Whitecube\LaravelTimezones\Facades\Timezone as Facade;
+use Illuminate\Database\Eloquent\Model;
+
 /*
 |--------------------------------------------------------------------------
 | Test Case
@@ -39,7 +43,20 @@
 |
 */
 
-// function something()
-// {
-//     // ..
-// }
+function setupFacade(string $storage = 'UTC', string $current = 'Europe/Brussels')
+{
+    $instance = new Timezone($storage);
+    $instance->set($current);
+
+    Facade::swap($instance);
+}
+
+function fakeModel()
+{
+    return new class() extends Model {
+        public function getDateFormat()
+        {
+            return 'Y-m-d H:i:s';
+        }
+    };
+}

tests/TimezoneSingletonTest.php

@@ -52,15 +52,18 @@
     $instance->set('Europe/Brussels');
 
     $string = $instance->date('1993-03-16 03:00:00');
-    $date = $instance->date(new Carbon('1993-03-16 03:00:00', 'UTC'));
+    $date = $instance->date(new Carbon('1993-03-16 02:00:00', 'UTC'));
     $custom = $instance->date('1993-03-16 03:00:00', fn($value, $tz) => new CarbonImmutable($value, $tz));
 
     expect($string)->toBeInstanceOf(CarbonInterface::class);
     expect($string->getTimezone()->getName() ?? null)->toBe('Europe/Brussels');
+    expect($string->format('Y-m-d H:i:s'))->toBe('1993-03-16 03:00:00');
     expect($date)->toBeInstanceOf(CarbonInterface::class);
     expect($date->getTimezone()->getName() ?? null)->toBe('Europe/Brussels');
+    expect($date->format('Y-m-d H:i:s'))->toBe('1993-03-16 03:00:00');
     expect($custom)->toBeInstanceOf(CarbonImmutable::class);
     expect($custom->getTimezone()->getName() ?? null)->toBe('Europe/Brussels');
+    expect($custom->format('Y-m-d H:i:s'))->toBe('1993-03-16 03:00:00');
 });
 
 
@@ -69,14 +72,17 @@
     $instance->setCurrent('Europe/Brussels');
 
     $string = $instance->store('1993-03-16 03:00:00');
-    $date = $instance->store(new Carbon('1993-03-16 03:00:00', 'Europe/Brussels'));
+    $date = $instance->store(new Carbon('1993-03-16 04:00:00', 'Europe/Brussels'));
     $custom = $instance->store('1993-03-16 03:00:00', fn($value, $tz) => new CarbonImmutable($value, $tz));
 
     expect($string)->toBeInstanceOf(CarbonInterface::class);
     expect($string->getTimezone()->getName() ?? null)->toBe('UTC');
+    expect($string->format('Y-m-d H:i:s'))->toBe('1993-03-16 03:00:00');
     expect($date)->toBeInstanceOf(CarbonInterface::class);
     expect($date->getTimezone()->getName() ?? null)->toBe('UTC');
+    expect($date->format('Y-m-d H:i:s'))->toBe('1993-03-16 03:00:00');
     expect($custom)->toBeInstanceOf(CarbonImmutable::class);
     expect($custom->getTimezone()->getName() ?? null)->toBe('UTC');
+    expect($custom->format('Y-m-d H:i:s'))->toBe('1993-03-16 03:00:00');
 });