nsstrings_darwin_test.go RawHistoryFolder

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: 2026 The Ebitengine Authors
3
4package cstrings_test
5
6import (
7	"testing"
8
9	"github.com/bnema/purego/cstrings"
10	"github.com/bnema/purego/objc"
11)
12
13func TestNSStringToString(t *testing.T) {
14	t.Run("nil ID returns empty string", func(t *testing.T) {
15		result := cstrings.NSStringToString(0)
16		if result != "" {
17			t.Errorf("expected empty string for nil ID, got %q", result)
18		}
19	})
20
21	t.Run("valid NSString returns correct string", func(t *testing.T) {
22		sel := objc.RegisterName("stringWithUTF8String:")
23		nsString := objc.ID(objc.GetClass("NSString")).Send(sel, "Hello, World!\x00")
24
25		result := cstrings.NSStringToString(nsString)
26		if result != "Hello, World!" {
27			t.Errorf("expected %q, got %q", "Hello, World!", result)
28		}
29	})
30
31	t.Run("empty NSString returns empty string", func(t *testing.T) {
32		sel := objc.RegisterName("stringWithUTF8String:")
33		nsString := objc.ID(objc.GetClass("NSString")).Send(sel, "\x00")
34
35		result := cstrings.NSStringToString(nsString)
36		if result != "" {
37			t.Errorf("expected empty string, got %q", result)
38		}
39	})
40
41	t.Run("non-NSString panics", func(t *testing.T) {
42		defer func() {
43			if r := recover(); r == nil {
44				t.Error("expected panic for non-NSString ID")
45			}
46		}()
47
48		classNSNumber := objc.GetClass("NSNumber")
49		sel := objc.RegisterName("numberWithInt:")
50		nsNumber := objc.ID(classNSNumber).Send(sel, 42)
51
52		cstrings.NSStringToString(nsNumber)
53	})
54}