func_sysv_test.go RawHistoryFolder

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: 2022 The Ebitengine Authors
3
4//go:build darwin || freebsd || (linux && (386 || amd64 || arm || arm64 || loong64 || ppc64le || riscv64 || (cgo && s390x))) || netbsd
5
6package purego_test
7
8import (
9	"testing"
10
11	"github.com/bnema/purego"
12)
13
14func TestUnrefCallback(t *testing.T) {
15	imp := func() bool { return true }
16
17	if err := purego.UnrefCallback(0); err == nil {
18		t.Fatal("unref of unknown callback returned nil error")
19	}
20
21	ref := purego.NewCallback(imp)
22	if err := purego.UnrefCallback(ref); err != nil {
23		t.Fatalf("UnrefCallback(%#x) error = %v", ref, err)
24	}
25	if err := purego.UnrefCallback(ref); err == nil {
26		t.Fatal("second UnrefCallback returned nil error")
27	}
28}
29
30func TestNewCallbackFnPtrReuseAndUnref(t *testing.T) {
31	imp := func() bool { return true }
32
33	if err := purego.UnrefCallbackFnPtr(&imp); err == nil {
34		t.Fatal("unref of unknown callback function pointer returned nil error")
35	}
36
37	ref1 := purego.NewCallbackFnPtr(&imp)
38	ref2 := purego.NewCallbackFnPtr(&imp)
39	if ref1 != ref2 {
40		t.Fatalf("NewCallbackFnPtr did not reuse callback: got %#x and %#x", ref1, ref2)
41	}
42
43	if err := purego.UnrefCallbackFnPtr(&imp); err != nil {
44		t.Fatalf("UnrefCallbackFnPtr error = %v", err)
45	}
46	if err := purego.UnrefCallbackFnPtr(&imp); err == nil {
47		t.Fatal("second UnrefCallbackFnPtr returned nil error")
48	}
49	if err := purego.UnrefCallback(ref1); err == nil {
50		t.Fatal("UnrefCallback on released function-pointer callback returned nil error")
51	}
52}