package tools

import "testing"

func TestApplySelectionDeltas(t *testing.T) {
	base := []string{"read_file", "write_file", "grep"}
	got := ApplySelection(base, "-write_file,+edit_file")
	want := []string{"read_file", "grep", "edit_file"}
	if len(got) != len(want) {
		t.Fatalf("%v", got)
	}
	for i := range want {
		if got[i] != want[i] {
			t.Fatalf("got %v want %v", got, want)
		}
	}
	replaced := ApplySelection(base, "read_file, grep")
	if len(replaced) != 2 || replaced[0] != "read_file" || replaced[1] != "grep" {
		t.Fatalf("bare list: %v", replaced)
	}
	if same := ApplySelection(base, ""); len(same) != 3 {
		t.Fatalf("empty spec: %v", same)
	}
}