fix delete/done

plan/command/delete.go

@@ -14,7 +14,7 @@ func NewDeleteArgs() DeleteArgs {
 }
 
 func (da DeleteArgs) Parse(main []string, flags map[string]string) (Command, error) {
-	if len(main) < 2 || main[0] != "delete" {
+	if len(main) < 2 || (main[0] != "delete" && main[0] != "done") {
 		return nil, ErrWrongCommand
 	}
 
@@ -71,7 +71,7 @@ func (del *Delete) Do(deps Dependencies) (CommandResult, error) {
 		return nil, fmt.Errorf("could not delete task: %v", err)
 	}
 
-	return nil, nil
+	return DeleteResult{}, nil
 }
 
 type DeleteResult struct{}

plan/command/delete_test.go

@@ -42,6 +42,10 @@ func TestDelete(t *testing.T) {
 			name: "valid",
 			main: []string{"delete", "1"},
 		},
+		{
+			name: "done",
+			main: []string{"done", "1"},
+		},
 	} {
 		t.Run(tc.name, func(t *testing.T) {
 			// setup