package flag

import "testing"

func TestDebugScopeEnabled(t *testing.T) {
	origDebug := Debug
	origScopes := DebugScopes
	defer func() {
		Debug = origDebug
		DebugScopes = origScopes
	}()

	t.Run("off when debug disabled", func(t *testing.T) {
		Debug = false
		DebugScopes = nil
		if DebugScopeEnabled("tools") {
			t.Fatal("scope should be disabled when Debug is false")
		}
	})

	t.Run("all scopes when set is empty", func(t *testing.T) {
		Debug = true
		DebugScopes = nil
		for _, s := range []string{"tools", "http", "config", "anything"} {
			if !DebugScopeEnabled(s) {
				t.Fatalf("scope %q should be enabled when DebugScopes is empty", s)
			}
		}
	})

	t.Run("only listed scopes when set is non-empty", func(t *testing.T) {
		Debug = true
		DebugScopes = map[string]struct{}{"tools": {}}
		if !DebugScopeEnabled("tools") {
			t.Fatal("tools should be enabled")
		}
		if DebugScopeEnabled("http") {
			t.Fatal("http should not be enabled")
		}
	})
}