Begin to add some tests

There is currently only really a test for listing, and only for the
empty list response

tests/Feature/Api/Assets/AssetFilesTest.php

@@ -3,11 +3,55 @@
 namespace Tests\Feature\Api\Assets;
 
 use Tests\TestCase;
+use App\Models\User;
+use App\Models\Asset;
 
 class AssetFilesTest extends TestCase
 {
-    public function testExample()
+    public function testAssetApiAcceptsFileUpload()
     {
+        // Upload a file to an asset
+
+        // Create an asset to work with
+        $asset = Asset::factory()->count(1)->create();
         //
+	//// Upload a file
+	//// Create a superuser to run this as
+	//$this->actingAsForApi(User::factory()->superuser()->create())
+        //    ->postJson(
+        //       route('api.asset.files', $asset), [
+        //                 'file[]' => 
+    }
+
+    public function testAssetApiListsFiles()
+    {
+        // List all files on an asset
+        
+        // Create an asset to work with
+        $asset = Asset::factory()->count(1)->create();
+
+	print($asset);
+
+	// Create a superuser to run this as
+	$user = User::factory()->superuser()->create();
+	$this->actingAsForApi($user)
+            ->getJson(
+		    route('api.assets.files', ['asset_id' => $asset[0]["id"]]))
+                ->assertOk()
+		->assertJsonStructure([
+                    'status',
+		    'messages',
+		    'payload',
+		]);
+    }
+
+    public function testAssetApiDownloadsFile()
+    {
+        // Download a file from an asset
+    }
+
+    public function testAssetApiDeletesFile()
+    {
+        // Delete a file from an asset
     }
 }