[TESTS] Add some basic tests for ModelsCommand (#869)

* tests: add abstract class for all database related tests

* tests: add abstract class for all ModelsCommand related tests

* tests: add GenerateBasicPhpdoc test

* tests: add CustomDate test

* tests: remove MITM abstract TestCaseDatabase, not useful here

* tests: skip new ModelsCommand test on Laravel < 6

* tests: remove CarbonImmutable checked

Since we decided to skip for Laravel < 6.0 anyway, it's always present

tests/Console/ModelsCommand/AbstractModelsCommand.php

@@ -0,0 +1,37 @@
+<?php declare(strict_types=1);
+
+namespace Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand;
+
+use Barryvdh\LaravelIdeHelper\Tests\TestCase;
+use Illuminate\Foundation\Application;
+
+abstract class AbstractModelsCommand extends TestCase
+{
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        // Skip older Laravel version for these tests
+        if (version_compare(Application::VERSION, '6.0', '<')) {
+            $this->markTestSkipped('This test requires Laravel 6.0 or higher');
+            return;
+        }
+
+        $this->loadMigrationsFrom(__DIR__ . '/migrations');
+        $this->artisan('migrate');
+    }
+
+    protected function getEnvironmentSetUp($app)
+    {
+        parent::getEnvironmentSetUp($app);
+
+        $config = $app['config'];
+
+        $config->set('database.default', 'sqlite');
+        $config->set('database.connections.sqlite', [
+            'driver' => 'sqlite',
+            'database' => ':memory:',
+            'prefix' => '',
+        ]);
+    }
+}