+ public function test_update_cover_image_control()
+ {
+ $this->actingAsApiEditor();
+ /** @var Book $book */
+ $book = Book::visible()->first();
+ $this->assertNull($book->cover);
+ $file = $this->getTestImage('image.png');
+
+ // Ensure cover image can be set via API
+ $resp = $this->call('PUT', $this->baseEndpoint . "/{$book->id}", [
+ 'name' => 'My updated API book with image',
+ ], [], ['image' => $file]);
+ $book->refresh();
+
+ $resp->assertStatus(200);
+ $this->assertNotNull($book->cover);
+
+ // Ensure further updates without image do not clear cover image
+ $resp = $this->put($this->baseEndpoint . "/{$book->id}", [
+ 'name' => 'My updated book again',
+ ]);
+ $book->refresh();
+
+ $resp->assertStatus(200);
+ $this->assertNotNull($book->cover);
+
+ // Ensure update with null image property clears image
+ $resp = $this->put($this->baseEndpoint . "/{$book->id}", [
+ 'image' => null,
+ ]);
+ $book->refresh();
+
+ $resp->assertStatus(200);
+ $this->assertNull($book->cover);
+ }
+