adds tests for amount and percent

app/Models/Depreciable.php

@@ -76,7 +76,7 @@ class Depreciable extends SnipeModel
 
         if ($months_passed >= $this->get_depreciation()->months){
             //if there is a floor use it
-            if((!$this->get_depreciation()->depreciation_min) === null) {
+            if($this->get_depreciation()->depreciation_min) {
 
                 $current_value = $this->calculateDepreciation();
 

tests/Unit/DepreciationTest.php

@@ -1,10 +1,13 @@
 <?php
 namespace Tests\Unit;
 
+use App\Models\Asset;
+use App\Models\Depreciable;
 use App\Models\Depreciation;
 use App\Models\Category;
 use App\Models\License;
 use App\Models\AssetModel;
+use Illuminate\Validation\ValidationException;
 use Tests\TestCase;
 
 class DepreciationTest extends TestCase
@@ -25,6 +28,54 @@ class DepreciationTest extends TestCase
 
         $this->assertEquals(5, $depreciation->models->count());
     }
+    public function testDepreciationAmount()
+    {
+        $depreciation = Depreciation::factory()->create([
+            'depreciation_type' => 'amount',
+            'depreciation_min' => 1000,
+            'months'=> 36,
+        ]);
+
+        $asset = Asset::factory()
+            ->laptopMbp()
+            ->create(
+                [
+                    'category_id' => Category::factory()->assetLaptopCategory()->create(),
+                    'purchase_date' => now()->subDecade(),
+                    'purchase_cost' => 4000,
+                ]);
+        $asset->model->update([
+            'depreciation_id' => $depreciation->id,
+        ]);
+
+        $asset->getLinearDepreciatedValue();
+
+        $this->assertEquals($depreciation->depreciation_min, $asset->getLinearDepreciatedValue());
+    }
+    public function testDepreciationPercentage()
+    {
+        $depreciation = Depreciation::factory()->create([
+            'depreciation_type' => 'percent',
+            'depreciation_min' => 50,
+            'months'=> 36,
+        ]);
+
+        $asset = Asset::factory()
+            ->laptopMbp()
+            ->create(
+                [
+                    'category_id' => Category::factory()->assetLaptopCategory()->create(),
+                    'purchase_date' => now()->subDecade(),
+                    'purchase_cost' => 4000,
+                ]);
+        $asset->model->update([
+            'depreciation_id' => $depreciation->id,
+        ]);
+
+        $asset->getLinearDepreciatedValue();
+
+        $this->assertEquals(2000, $asset->getLinearDepreciatedValue());
+    }
 
     public function testADepreciationHasLicenses()
     {