Fixed tests for deleting

pkg/files/files.go

@@ -87,10 +87,13 @@ func Create(f io.ReadCloser, realname string, realsize int64, a web.Auth) (file
 
 // Delete removes a file from the DB and the file system
 func (f *File) Delete() (err error) {
-	_, err = x.Where("id = ?", f.ID).Delete(f)
+	deleted, err := x.Where("id = ?", f.ID).Delete(f)
 	if err != nil {
 		return err
 	}
+	if deleted == 0 {
+		return ErrFileDoesNotExist{FileID: f.ID}
+	}
 
 	err = afs.Remove(f.getFileName())
 	return

pkg/files/files_test.go

@@ -28,7 +28,17 @@ func TestCreate(t *testing.T) {
 }
 
 func TestFile_Delete(t *testing.T) {
-
+	t.Run("Normal", func(t *testing.T) {
+		f := &File{ID: 1}
+		err := f.Delete()
+		assert.NoError(t, err)
+	})
+	t.Run("Nonexisting", func(t *testing.T) {
+		f := &File{ID: 9999}
+		err := f.Delete()
+		assert.Error(t, err)
+		assert.True(t, IsErrFileDoesNotExist(err))
+	})
 }
 
 func TestFile_LoadFileByID(t *testing.T) {