Add more tests (#870)

* tests: be more systematic when testing discrete column types

Still not covering all due to SQLite limitation

* tests: relations of models

* tests: model in another namespace gets correctly qualified

* tests: cover SoftDeletes trait

* tests: cover some variants of getter

tests/Console/ModelsCommand/Getter/Models/Simple.php

@@ -0,0 +1,57 @@
+<?php declare(strict_types=1);
+
+namespace Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\Getter\Models;
+
+use DateTime;
+use Illuminate\Database\Eloquent\Model;
+
+class Simple extends Model
+{
+    /**
+     * @return int
+     */
+    public function getAttributeWithIntReturnPhpdocAttribute()
+    {
+    }
+
+    public function getAttributeWithIntReturnTypeAttribute(): int
+    {
+    }
+
+    /**
+     * @return int
+     */
+    public function getAttributeWithIntReturnTypeAndPhpdocAttribute(): int
+    {
+    }
+
+    /**
+     * @return string
+     */
+    public function getAttributeWithIntReturnTypeAndButPhpdocStringAttribute(): int
+    {
+    }
+
+    public function getAttributeWithoutTypeAttribute()
+    {
+    }
+
+    /**
+     * @return what|ever|we-write/here
+     */
+    public function getAttributeTakesPhpdocLiteralAttribute()
+    {
+    }
+
+    public function getAttributeReturnTypeIntOrNullAttribute(): ?int
+    {
+    }
+
+    public function getAttributeReturnsImportedClass(): DateTime
+    {
+    }
+
+    public function getAttributeReturnsFqnClass(): \Illuminate\Support\Facades\Date
+    {
+    }
+}