[libglnx/wip/smcv/testing-helpers: 8/8] Backport most of the test convenience helpers from GLib's GTest
- From: Simon McVittie <smcv src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [libglnx/wip/smcv/testing-helpers: 8/8] Backport most of the test convenience helpers from GLib's GTest
- Date: Fri, 19 Aug 2022 10:01:35 +0000 (UTC)
commit c52b73d4ae58ee2e3f1572c1b546d929ecdbd0c8
Author: Simon McVittie <smcv collabora com>
Date: Wed Jul 27 15:51:41 2022 +0100
Backport most of the test convenience helpers from GLib's GTest
This includes a test (who tests the tests themselves?). Run
as `${build}/tests/testing --tap` with semi-modern GLib, or
`${build}/tests/testing --verbose` with GLib < 2.38, to check that the
output is as reasonable as possible given the limitations of the GLib
version in use.
Signed-off-by: Simon McVittie <smcv collabora com>
Makefile-libglnx.am | 1 +
glnx-backport-testutils.c | 145 +++++++++++++++++
glnx-backport-testutils.h | 157 ++++++++++++++++++-
glnx-backports.h | 6 +
meson.build | 1 +
tests/meson.build | 11 ++
tests/test-libglnx-testing.c | 361 +++++++++++++++++++++++++++++++++++++++++++
tests/testing-helper.c | 327 +++++++++++++++++++++++++++++++++++++++
8 files changed, 1007 insertions(+), 2 deletions(-)
---
diff --git a/Makefile-libglnx.am b/Makefile-libglnx.am
index f699ff2..5934a2b 100644
--- a/Makefile-libglnx.am
+++ b/Makefile-libglnx.am
@@ -34,6 +34,7 @@ libglnx_la_SOURCES = \
$(libglnx_srcpath)/glnx-backport-autocleanups.h \
$(libglnx_srcpath)/glnx-backport-autoptr.h \
$(libglnx_srcpath)/glnx-backport-testutils.h \
+ $(libglnx_srcpath)/glnx-backport-testutils.c \
$(libglnx_srcpath)/glnx-backports.h \
$(libglnx_srcpath)/glnx-backports.c \
$(libglnx_srcpath)/glnx-local-alloc.h \
diff --git a/glnx-backport-testutils.c b/glnx-backport-testutils.c
new file mode 100644
index 0000000..31105c9
--- /dev/null
+++ b/glnx-backport-testutils.c
@@ -0,0 +1,145 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
+ *
+ * Copyright 2015 Colin Walters
+ * Copyright 2020 Niels De Graef
+ * Copyright 2021-2022 Collabora Ltd.
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the licence or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "libglnx-config.h"
+
+#include <string.h>
+#include <unistd.h>
+
+#include <glib/gprintf.h>
+
+#include "glnx-backport-autocleanups.h"
+#include "glnx-backport-autoptr.h"
+#include "glnx-backport-testutils.h"
+#include "glnx-backports.h"
+
+#if !GLIB_CHECK_VERSION (2, 68, 0)
+/* Backport of g_assertion_message_cmpstrv() */
+void
+_glnx_assertion_message_cmpstrv (const char *domain,
+ const char *file,
+ int line,
+ const char *func,
+ const char *expr,
+ const char * const *arg1,
+ const char * const *arg2,
+ gsize first_wrong_idx)
+{
+ const char *s1 = arg1[first_wrong_idx], *s2 = arg2[first_wrong_idx];
+ char *a1, *a2, *s, *t1 = NULL, *t2 = NULL;
+
+ a1 = g_strconcat ("\"", t1 = g_strescape (s1, NULL), "\"", NULL);
+ a2 = g_strconcat ("\"", t2 = g_strescape (s2, NULL), "\"", NULL);
+ g_free (t1);
+ g_free (t2);
+ s = g_strdup_printf ("assertion failed (%s): first differing element at index %" G_GSIZE_FORMAT ": %s does
not equal %s",
+ expr, first_wrong_idx, a1, a2);
+ g_free (a1);
+ g_free (a2);
+ g_assertion_message (domain, file, line, func, s);
+ g_free (s);
+}
+#endif
+
+#if !GLIB_CHECK_VERSION(2, 70, 0)
+/*
+ * Same as g_test_message(), but split messages with newlines into
+ * multiple separate messages to avoid corrupting stdout, even in older
+ * GLib versions that didn't do this
+ */
+void
+_glnx_test_message_safe (const char *format,
+ ...)
+{
+ g_autofree char *message = NULL;
+ va_list ap;
+ char *line;
+ char *saveptr = NULL;
+
+ va_start (ap, format);
+ g_vasprintf (&message, format, ap);
+ va_end (ap);
+
+ for (line = strtok_r (message, "\n", &saveptr);
+ line != NULL;
+ line = strtok_r (NULL, "\n", &saveptr))
+ (g_test_message) ("%s", line);
+}
+
+/* Backport of g_test_fail_printf() */
+void
+_glnx_test_fail_printf (const char *format,
+ ...)
+{
+ g_autofree char *message = NULL;
+ va_list ap;
+
+ va_start (ap, format);
+ g_vasprintf (&message, format, ap);
+ va_end (ap);
+
+ /* This is the closest we can do in older GLib */
+ g_test_message ("Bail out! %s", message);
+ g_test_fail ();
+}
+
+/* Backport of g_test_skip_printf() */
+void
+_glnx_test_skip_printf (const char *format,
+ ...)
+{
+ g_autofree char *message = NULL;
+ va_list ap;
+
+ va_start (ap, format);
+ g_vasprintf (&message, format, ap);
+ va_end (ap);
+
+ g_test_skip (message);
+}
+
+/* Backport of g_test_incomplete_printf() */
+void
+_glnx_test_incomplete_printf (const char *format,
+ ...)
+{
+ g_autofree char *message = NULL;
+ va_list ap;
+
+ va_start (ap, format);
+ g_vasprintf (&message, format, ap);
+ va_end (ap);
+
+#if GLIB_CHECK_VERSION(2, 58, 0)
+ /* Since 2.58, g_test_incomplete() sets the exit status correctly. */
+ g_test_incomplete (message);
+#elif GLIB_CHECK_VERSION (2, 38, 0)
+ /* Before 2.58, g_test_incomplete() was treated like a failure for the
+ * purposes of setting the exit status, so prefer to use (our wrapper
+ * around) g_test_skip(). */
+ g_test_skip_printf ("TODO: %s", message);
+#else
+ g_test_message ("TODO: %s", message);
+#endif
+}
+#endif
diff --git a/glnx-backport-testutils.h b/glnx-backport-testutils.h
index f43c204..2febcc0 100644
--- a/glnx-backport-testutils.h
+++ b/glnx-backport-testutils.h
@@ -2,6 +2,12 @@
*
* Copyright 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
* Copyright 2015 Colin Walters <walters verbum org>
+ * Copyright 2014 Dan Winship
+ * Copyright 2015 Colin Walters
+ * Copyright 2017 Emmanuele Bassi
+ * Copyright 2018-2019 Endless OS Foundation LLC
+ * Copyright 2020 Niels De Graef
+ * Copyright 2021-2022 Collabora Ltd.
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library is free software; you can redistribute it and/or
@@ -28,16 +34,163 @@
G_BEGIN_DECLS
-#ifndef g_assert_nonnull
+#ifndef g_assert_nonnull /* added in 2.40 */
#define g_assert_nonnull(x) g_assert (x != NULL)
#endif
-#ifndef g_assert_null
+#ifndef g_assert_null /* added in 2.40 */
#define g_assert_null(x) g_assert (x == NULL)
#endif
#if !GLIB_CHECK_VERSION (2, 38, 0)
+/* Not exactly equivalent, but close enough */
#define g_test_skip(s) g_test_message ("SKIP: %s", s)
#endif
+#if !GLIB_CHECK_VERSION (2, 58, 0)
+/* Before 2.58, g_test_incomplete() didn't set the exit status correctly */
+#define g_test_incomplete(s) _glnx_test_incomplete_printf ("%s", s)
+#endif
+
+#if !GLIB_CHECK_VERSION (2, 46, 0)
+#define g_assert_cmpmem(m1, l1, m2, l2) G_STMT_START {\
+ gconstpointer __m1 = m1, __m2 = m2; \
+ int __l1 = l1, __l2 = l2; \
+ if (__l1 != 0 && __m1 == NULL) \
+ g_assertion_message (G_LOG_DOMAIN, __FILE__, __LINE__,
G_STRFUNC, \
+ "assertion failed (" #l1 " == 0 || " #m1
" != NULL)"); \
+ else if (__l2 != 0 && __m2 == NULL) \
+ g_assertion_message (G_LOG_DOMAIN, __FILE__, __LINE__,
G_STRFUNC, \
+ "assertion failed (" #l2 " == 0 || " #m2
" != NULL)"); \
+ else if (__l1 != __l2) \
+ g_assertion_message_cmpnum (G_LOG_DOMAIN, __FILE__, __LINE__,
G_STRFUNC, \
+ #l1 " (len(" #m1 ")) == " #l2 "
(len(" #m2 "))", \
+ (long double) __l1, "==", (long
double) __l2, 'i'); \
+ else if (__l1 != 0 && __m2 != NULL && memcmp (__m1, __m2, __l1)
!= 0) \
+ g_assertion_message (G_LOG_DOMAIN, __FILE__, __LINE__,
G_STRFUNC, \
+ "assertion failed (" #m1 " == " #m2
")"); \
+ } G_STMT_END
+#endif
+
+#if !GLIB_CHECK_VERSION (2, 58, 0)
+#define g_assert_cmpfloat_with_epsilon(n1,n2,epsilon) \
+ G_STMT_START { \
+ double __n1 = (n1), __n2 = (n2), __epsilon = (epsilon); \
+ if (G_APPROX_VALUE (__n1, __n2, __epsilon)) ; else \
+ g_assertion_message_cmpnum (G_LOG_DOMAIN, __FILE__, __LINE__,
G_STRFUNC, \
+ #n1 " == " #n2 " (+/- " #epsilon ")", __n1, "==", __n2,
'f'); \
+ } G_STMT_END
+#endif
+
+#if !GLIB_CHECK_VERSION (2, 60, 0)
+#define g_assert_cmpvariant(v1, v2) \
+ G_STMT_START \
+ { \
+ GVariant *__v1 = (v1), *__v2 = (v2); \
+ if (!g_variant_equal (__v1, __v2)) \
+ { \
+ gchar *__s1, *__s2, *__msg; \
+ __s1 = g_variant_print (__v1, TRUE); \
+ __s2 = g_variant_print (__v2, TRUE); \
+ __msg = g_strdup_printf ("assertion failed (" #v1 " == " #v2 "): %s does not equal %s", __s1, __s2);
\
+ g_assertion_message (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, __msg); \
+ g_free (__s1); \
+ g_free (__s2); \
+ g_free (__msg); \
+ } \
+ } \
+ G_STMT_END
+#endif
+
+#if !GLIB_CHECK_VERSION (2, 62, 0)
+/* Not exactly equivalent, but close enough */
+#define g_test_summary(s) g_test_message ("SUMMARY: %s", s)
+#endif
+
+#if !GLIB_CHECK_VERSION (2, 66, 0)
+#define g_assert_no_errno(expr) G_STMT_START { \
+ int __ret, __errsv; \
+ errno = 0; \
+ __ret = expr; \
+ __errsv = errno; \
+ if (__ret < 0) \
+ { \
+ gchar *__msg; \
+ __msg = g_strdup_printf ("assertion failed (" #expr " >=
0): errno %i: %s", __errsv, g_strerror (__errsv)); \
+ g_assertion_message (G_LOG_DOMAIN, __FILE__, __LINE__,
G_STRFUNC, __msg); \
+ g_free (__msg); \
+ } \
+ } G_STMT_END
+#endif
+
+#if !GLIB_CHECK_VERSION (2, 68, 0)
+#define g_assertion_message_cmpstrv _glnx_assertion_message_cmpstrv
+void _glnx_assertion_message_cmpstrv (const char *domain,
+ const char *file,
+ int line,
+ const char *func,
+ const char *expr,
+ const char * const *arg1,
+ const char * const *arg2,
+ gsize first_wrong_idx);
+#define g_assert_cmpstrv(strv1, strv2) \
+ G_STMT_START \
+ { \
+ const char * const *__strv1 = (const char * const *) (strv1); \
+ const char * const *__strv2 = (const char * const *) (strv2); \
+ if (!__strv1 || !__strv2) \
+ { \
+ if (__strv1) \
+ { \
+ g_assertion_message (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
+ "assertion failed (" #strv1 " == " #strv2 "): " #strv2 " is NULL, but "
#strv1 " is not"); \
+ } \
+ else if (__strv2) \
+ { \
+ g_assertion_message (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
+ "assertion failed (" #strv1 " == " #strv2 "): " #strv1 " is NULL, but "
#strv2 " is not"); \
+ } \
+ } \
+ else \
+ { \
+ guint __l1 = g_strv_length ((char **) __strv1); \
+ guint __l2 = g_strv_length ((char **) __strv2); \
+ if (__l1 != __l2) \
+ { \
+ char *__msg; \
+ __msg = g_strdup_printf ("assertion failed (" #strv1 " == " #strv2 "): length %u does not equal
length %u", __l1, __l2); \
+ g_assertion_message (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, __msg); \
+ g_free (__msg); \
+ } \
+ else \
+ { \
+ guint __i; \
+ for (__i = 0; __i < __l1; __i++) \
+ { \
+ if (g_strcmp0 (__strv1[__i], __strv2[__i]) != 0) \
+ { \
+ g_assertion_message_cmpstrv (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
+ #strv1 " == " #strv2, \
+ __strv1, __strv2, __i); \
+ } \
+ } \
+ } \
+ } \
+ } \
+ G_STMT_END
+#endif
+
+#if !GLIB_CHECK_VERSION (2, 70, 0)
+/* Before 2.70, diagnostic messages containing newlines were problematic */
+#define g_test_message(...) _glnx_test_message_safe (__VA_ARGS__)
+void _glnx_test_message_safe (const char *format, ...) G_GNUC_PRINTF (1, 2);
+
+#define g_test_fail_printf _glnx_test_fail_printf
+void _glnx_test_fail_printf (const char *format, ...) G_GNUC_PRINTF (1, 2);
+#define g_test_skip_printf _glnx_test_skip_printf
+void _glnx_test_skip_printf (const char *format, ...) G_GNUC_PRINTF (1, 2);
+#define g_test_incomplete_printf _glnx_test_incomplete_printf
+void _glnx_test_incomplete_printf (const char *format, ...) G_GNUC_PRINTF (1, 2);
+#endif
+
G_END_DECLS
diff --git a/glnx-backports.h b/glnx-backports.h
index b535e2d..71c3f5c 100644
--- a/glnx-backports.h
+++ b/glnx-backports.h
@@ -1,6 +1,7 @@
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
*
* Copyright (C) 2015 Colin Walters <walters verbum org>
+ * Copyright 2017 Emmanuele Bassi
* SPDX-License-Identifier: LGPL-2.0-or-later
*
* GLIB - Library of useful routines for C programming
@@ -84,4 +85,9 @@ gboolean glnx_set_object (GObject **object_ptr,
#define G_OPTION_ENTRY_NULL { NULL, 0, 0, 0, NULL, NULL, NULL }
#endif
+#ifndef G_APPROX_VALUE /* added in 2.58 */
+#define G_APPROX_VALUE(a, b, epsilon) \
+ (((a) > (b) ? (a) - (b) : (b) - (a)) < (epsilon))
+#endif
+
G_END_DECLS
diff --git a/meson.build b/meson.build
index 86535a8..9b871db 100644
--- a/meson.build
+++ b/meson.build
@@ -57,6 +57,7 @@ libglnx_inc = include_directories('.')
libglnx_sources = [
'glnx-backport-autocleanups.h',
'glnx-backport-autoptr.h',
+ 'glnx-backport-testutils.c',
'glnx-backport-testutils.h',
'glnx-backports.c',
'glnx-backports.h',
diff --git a/tests/meson.build b/tests/meson.build
index 2c38ab0..2d0a976 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -22,11 +22,22 @@ libglnx_testlib_dep = declare_dependency(
)
if get_option('tests')
+ executable(
+ 'testing-helper',
+ 'testing-helper.c',
+ dependencies : [
+ libglnx_dep,
+ libglnx_deps,
+ ],
+ install : false,
+ )
+
test_names = [
'errors',
'fdio',
'macros',
'shutil',
+ 'testing',
'xattrs',
]
diff --git a/tests/test-libglnx-testing.c b/tests/test-libglnx-testing.c
new file mode 100644
index 0000000..279e0e1
--- /dev/null
+++ b/tests/test-libglnx-testing.c
@@ -0,0 +1,361 @@
+/*
+ * Copyright 2022 Simon McVittie
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#include "libglnx-config.h"
+#include "libglnx.h"
+
+#include <glib.h>
+#include <glib/gstdio.h>
+
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#if GLIB_CHECK_VERSION (2, 38, 0)
+#define GTEST_TAP_OR_VERBOSE "--tap"
+#else
+#define GTEST_TAP_OR_VERBOSE "--verbose"
+#endif
+
+static const char *null = NULL;
+static const char *nonnull = "not null";
+
+static void
+test_assertions (void)
+{
+ const char *other_nonnull = "not null";
+ g_autoptr(GVariant) va = g_variant_ref_sink (g_variant_new ("i", 42));
+ g_autoptr(GVariant) vb = g_variant_ref_sink (g_variant_new ("i", 42));
+ const char * const strv1[] = {"one", "two", NULL};
+ const char * const strv2[] = {"one", "two", NULL};
+ GStatBuf statbuf;
+
+ g_assert_null (null);
+ g_assert_nonnull (nonnull);
+ g_assert_cmpmem (null, 0, null, 0);
+ g_assert_cmpmem (nonnull, strlen (nonnull), other_nonnull, strlen (other_nonnull));
+ g_assert_cmpfloat_with_epsilon (1.0, 1.00001, 0.01);
+ g_assert_cmpvariant (va, vb);
+ g_assert_no_errno (g_stat ("/", &statbuf));
+ g_assert_cmpstrv (NULL, NULL);
+ g_assert_cmpstrv (&null, &null);
+ g_assert_cmpstrv (strv1, strv2);
+}
+
+static void
+test_assertion_failures (void)
+{
+ static const char * const assertion_failures[] =
+ {
+ "nonnull",
+ "null",
+ "mem_null_nonnull",
+ "mem_nonnull_null",
+ "mem_len",
+ "mem_cmp",
+ "cmpfloat_with_epsilon",
+ "cmpvariant",
+ "errno",
+ "cmpstrv_null_nonnull",
+ "cmpstrv_nonnull_null",
+ "cmpstrv_len",
+ "cmpstrv_cmp",
+ };
+ g_autoptr(GError) error = NULL;
+ g_autofree char *self = NULL;
+ g_autofree char *dir = NULL;
+ g_autofree char *exe = NULL;
+ gsize i;
+
+ self = glnx_readlinkat_malloc (-1, "/proc/self/exe", NULL, &error);
+ g_assert_no_error (error);
+
+ dir = g_path_get_dirname (self);
+ exe = g_build_filename (dir, "testing-helper", NULL);
+
+ for (i = 0; i < G_N_ELEMENTS (assertion_failures); i++)
+ {
+ g_autofree char *out = NULL;
+ g_autofree char *err = NULL;
+ g_autofree char *name = g_strdup_printf ("/assertion-failure/%s", assertion_failures[i]);
+ int wait_status = -1;
+ const char *argv[] = { NULL, "assertion-failures", "-p", NULL, NULL, NULL };
+ char *line;
+ char *saveptr = NULL;
+
+ argv[0] = exe;
+ argv[3] = name;
+ argv[4] = GTEST_TAP_OR_VERBOSE;
+ g_test_message ("%s assertion-failures -p %s %s...", exe, name, GTEST_TAP_OR_VERBOSE);
+
+ g_spawn_sync (NULL, /* cwd */
+ (char **) argv,
+ NULL, /* envp */
+ G_SPAWN_DEFAULT,
+ NULL, /* child setup */
+ NULL, /* user data */
+ &out,
+ &err,
+ &wait_status,
+ &error);
+ g_assert_no_error (error);
+
+ g_assert_nonnull (out);
+ g_assert_nonnull (err);
+
+ for (line = strtok_r (out, "\n", &saveptr);
+ line != NULL;
+ line = strtok_r (NULL, "\n", &saveptr))
+ g_test_message ("stdout: %s", line);
+
+ saveptr = NULL;
+
+ for (line = strtok_r (err, "\n", &saveptr);
+ line != NULL;
+ line = strtok_r (NULL, "\n", &saveptr))
+ g_test_message ("stderr: %s", line);
+
+ g_test_message ("wait status: 0x%x", wait_status);
+
+ /* It exited with a nonzero status that was not exit status 77 */
+ G_STATIC_ASSERT (WIFEXITED (0));
+ G_STATIC_ASSERT (WEXITSTATUS (0) == 0);
+ g_assert_cmphex (wait_status, !=, 0);
+ G_STATIC_ASSERT (WIFEXITED (77 << 8));
+ G_STATIC_ASSERT (WEXITSTATUS (77 << 8) == 77);
+ g_assert_cmphex (wait_status, !=, (77 << 8));
+ }
+}
+
+static void
+test_failures (void)
+{
+ static const char * const failures[] =
+ {
+ "fail",
+ "fail-printf",
+ };
+ g_autoptr(GError) error = NULL;
+ g_autofree char *self = NULL;
+ g_autofree char *dir = NULL;
+ g_autofree char *exe = NULL;
+ gsize i;
+
+ self = glnx_readlinkat_malloc (-1, "/proc/self/exe", NULL, &error);
+ g_assert_no_error (error);
+
+ dir = g_path_get_dirname (self);
+ exe = g_build_filename (dir, "testing-helper", NULL);
+
+ for (i = 0; i < G_N_ELEMENTS (failures); i++)
+ {
+ g_autofree char *out = NULL;
+ g_autofree char *err = NULL;
+ int wait_status = -1;
+ const char *argv[] = { NULL, NULL, NULL, NULL };
+ char *line;
+ char *saveptr;
+
+ argv[0] = exe;
+ argv[1] = failures[i];
+ argv[2] = GTEST_TAP_OR_VERBOSE;
+ g_test_message ("%s %s %s...", exe, failures[i], GTEST_TAP_OR_VERBOSE);
+
+ g_spawn_sync (NULL, /* cwd */
+ (char **) argv,
+ NULL, /* envp */
+ G_SPAWN_DEFAULT,
+ NULL, /* child setup */
+ NULL, /* user data */
+ &out,
+ &err,
+ &wait_status,
+ &error);
+ g_assert_no_error (error);
+
+ for (line = strtok_r (out, "\n", &saveptr);
+ line != NULL;
+ line = strtok_r (NULL, "\n", &saveptr))
+ g_test_message ("stdout: %s", line);
+
+ for (line = strtok_r (err, "\n", &saveptr);
+ line != NULL;
+ line = strtok_r (NULL, "\n", &saveptr))
+ g_test_message ("stderr: %s", line);
+
+ g_test_message ("wait status: 0x%x", wait_status);
+
+ G_STATIC_ASSERT (WIFEXITED (0));
+ G_STATIC_ASSERT (WEXITSTATUS (0) == 0);
+ G_STATIC_ASSERT (WIFEXITED (77 << 8));
+ G_STATIC_ASSERT (WEXITSTATUS (77 << 8) == 77);
+
+ g_assert_cmphex (wait_status, !=, 0);
+ g_assert_cmphex (wait_status, !=, (77 << 8));
+ }
+}
+
+static void
+test_skips (void)
+{
+ static const char * const skips[] =
+ {
+ "skip",
+ "skip-printf",
+ "incomplete",
+ "incomplete-printf",
+ };
+ g_autoptr(GError) error = NULL;
+ g_autofree char *self = NULL;
+ g_autofree char *dir = NULL;
+ g_autofree char *exe = NULL;
+ gsize i;
+
+ self = glnx_readlinkat_malloc (-1, "/proc/self/exe", NULL, &error);
+ g_assert_no_error (error);
+
+ dir = g_path_get_dirname (self);
+ exe = g_build_filename (dir, "testing-helper", NULL);
+
+ for (i = 0; i < G_N_ELEMENTS (skips); i++)
+ {
+ g_autofree char *out = NULL;
+ g_autofree char *err = NULL;
+ int wait_status = -1;
+ const char *argv[] = { NULL, NULL, NULL, NULL };
+ char *line;
+ char *saveptr;
+
+ argv[0] = exe;
+ argv[1] = skips[i];
+ argv[2] = GTEST_TAP_OR_VERBOSE;
+ g_test_message ("%s %s %s...", exe, skips[i], GTEST_TAP_OR_VERBOSE);
+
+ g_spawn_sync (NULL, /* cwd */
+ (char **) argv,
+ NULL, /* envp */
+ G_SPAWN_DEFAULT,
+ NULL, /* child setup */
+ NULL, /* user data */
+ &out,
+ &err,
+ &wait_status,
+ &error);
+ g_assert_no_error (error);
+
+ for (line = strtok_r (out, "\n", &saveptr);
+ line != NULL;
+ line = strtok_r (NULL, "\n", &saveptr))
+ g_test_message ("stdout: %s", line);
+
+ for (line = strtok_r (err, "\n", &saveptr);
+ line != NULL;
+ line = strtok_r (NULL, "\n", &saveptr))
+ g_test_message ("stderr: %s", line);
+
+ g_test_message ("wait status: 0x%x", wait_status);
+
+ G_STATIC_ASSERT (WIFEXITED (0));
+ G_STATIC_ASSERT (WEXITSTATUS (0) == 0);
+ G_STATIC_ASSERT (WIFEXITED (77 << 8));
+ G_STATIC_ASSERT (WEXITSTATUS (77 << 8) == 77);
+
+ /* Ideally the exit status is 77, but it might be 0 with older GLib */
+ if (wait_status != 0)
+ g_assert_cmphex (wait_status, ==, (77 << 8));
+ }
+}
+
+static void
+test_successes (void)
+{
+ static const char * const successes[] =
+ {
+ "messages",
+ "pass",
+ "summary",
+ };
+ g_autoptr(GError) error = NULL;
+ g_autofree char *self = NULL;
+ g_autofree char *dir = NULL;
+ g_autofree char *exe = NULL;
+ gsize i;
+
+ self = glnx_readlinkat_malloc (-1, "/proc/self/exe", NULL, &error);
+ g_assert_no_error (error);
+
+ dir = g_path_get_dirname (self);
+ exe = g_build_filename (dir, "testing-helper", NULL);
+
+ for (i = 0; i < G_N_ELEMENTS (successes); i++)
+ {
+ g_autofree char *out = NULL;
+ g_autofree char *err = NULL;
+ int wait_status = -1;
+ const char *argv[] = { NULL, NULL, NULL, NULL };
+ char *line;
+ char *saveptr;
+
+ argv[0] = exe;
+ argv[1] = successes[i];
+ argv[2] = GTEST_TAP_OR_VERBOSE;
+ g_test_message ("%s %s %s...", exe, successes[i], GTEST_TAP_OR_VERBOSE);
+
+ g_spawn_sync (NULL, /* cwd */
+ (char **) argv,
+ NULL, /* envp */
+ G_SPAWN_DEFAULT,
+ NULL, /* child setup */
+ NULL, /* user data */
+ &out,
+ &err,
+ &wait_status,
+ &error);
+ g_assert_no_error (error);
+
+ for (line = strtok_r (out, "\n", &saveptr);
+ line != NULL;
+ line = strtok_r (NULL, "\n", &saveptr))
+ g_test_message ("stdout: %s", line);
+
+ for (line = strtok_r (err, "\n", &saveptr);
+ line != NULL;
+ line = strtok_r (NULL, "\n", &saveptr))
+ g_test_message ("stderr: %s", line);
+
+ g_test_message ("wait status: 0x%x", wait_status);
+
+ G_STATIC_ASSERT (WIFEXITED (0));
+ G_STATIC_ASSERT (WEXITSTATUS (0) == 0);
+ g_assert_cmphex (wait_status, ==, 0);
+ }
+}
+
+int
+main (int argc, char **argv)
+{
+ g_test_init (&argc, &argv, NULL);
+ g_test_add_func ("/assertions", test_assertions);
+ g_test_add_func ("/assertion_failures", test_assertion_failures);
+ g_test_add_func ("/failures", test_failures);
+ g_test_add_func ("/skips", test_skips);
+ g_test_add_func ("/successes", test_successes);
+ return g_test_run();
+}
diff --git a/tests/testing-helper.c b/tests/testing-helper.c
new file mode 100644
index 0000000..4e00fbe
--- /dev/null
+++ b/tests/testing-helper.c
@@ -0,0 +1,327 @@
+/*
+ * Based on glib/tests/testing-helper.c from GLib
+ *
+ * Copyright 2018-2022 Collabora Ltd.
+ * Copyright 2019 Руслан Ижбулатов
+ * Copyright 2018-2022 Endless OS Foundation LLC
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#include "libglnx-config.h"
+#include "libglnx.h"
+
+#include <glib.h>
+#include <glib/gstdio.h>
+#include <locale.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+static const char *null = NULL;
+static const char *nonnull = "not null";
+
+static void
+test_pass (void)
+{
+}
+
+static void
+test_messages (void)
+{
+ g_test_message ("This message has multiple lines.\n"
+ "In older GLib, it would corrupt TAP output.\n"
+ "That's why libglnx provides a wrapper.\n");
+}
+
+static void
+test_assertion_failure_nonnull (void)
+{
+ g_assert_nonnull (null);
+}
+
+static void
+test_assertion_failure_null (void)
+{
+ g_assert_null (nonnull);
+}
+
+static void
+test_assertion_failure_mem_null_nonnull (void)
+{
+ g_assert_cmpmem (null, 0, nonnull, strlen (nonnull));
+}
+
+static void
+test_assertion_failure_mem_nonnull_null (void)
+{
+ g_assert_cmpmem (nonnull, strlen (nonnull), null, 0);
+}
+
+static void
+test_assertion_failure_mem_len (void)
+{
+ g_assert_cmpmem (nonnull, strlen (nonnull), nonnull, 0);
+}
+
+static void
+test_assertion_failure_mem_cmp (void)
+{
+ g_assert_cmpmem (nonnull, 4, nonnull + 4, 4);
+}
+
+static void
+test_assertion_failure_cmpfloat_with_epsilon (void)
+{
+ g_assert_cmpfloat_with_epsilon (1.0, 1.5, 0.001);
+}
+
+static void
+test_assertion_failure_cmpvariant (void)
+{
+ g_autoptr(GVariant) a = g_variant_ref_sink (g_variant_new ("i", 42));
+ g_autoptr(GVariant) b = g_variant_ref_sink (g_variant_new ("u", 42));
+
+ g_assert_cmpvariant (a, b);
+}
+
+static void
+test_assertion_failure_errno (void)
+{
+ g_assert_no_errno (mkdir ("/", 0755));
+}
+
+static void
+test_assertion_failure_cmpstrv_null_nonnull (void)
+{
+ const char * const b[] = { NULL };
+
+ g_assert_cmpstrv (NULL, b);
+}
+
+static void
+test_assertion_failure_cmpstrv_nonnull_null (void)
+{
+ const char * const a[] = { NULL };
+
+ g_assert_cmpstrv (a, NULL);
+}
+
+static void
+test_assertion_failure_cmpstrv_len (void)
+{
+ const char * const a[] = { "one", NULL };
+ const char * const b[] = { NULL };
+
+ g_assert_cmpstrv (a, b);
+}
+
+static void
+test_assertion_failure_cmpstrv_cmp (void)
+{
+ const char * const a[] = { "one", "two", NULL };
+ const char * const b[] = { "one", "three", NULL };
+
+ g_assert_cmpstrv (a, b);
+}
+
+static void
+test_skip (void)
+{
+ g_test_skip ("not enough tea");
+}
+
+static void
+test_skip_printf (void)
+{
+ const char *beverage = "coffee";
+
+ g_test_skip_printf ("not enough %s", beverage);
+}
+
+static void
+test_fail (void)
+{
+ g_test_fail ();
+}
+
+static void
+test_fail_printf (void)
+{
+ g_test_fail_printf ("this test intentionally left failing");
+}
+
+static void
+test_incomplete (void)
+{
+ g_test_incomplete ("mind reading not implemented yet");
+}
+
+static void
+test_incomplete_printf (void)
+{
+ const char *operation = "telekinesis";
+
+ g_test_incomplete_printf ("%s not implemented yet", operation);
+}
+
+static void
+test_summary (void)
+{
+ g_test_summary ("Tests that g_test_summary() works with TAP, by outputting a "
+ "known summary message in testing-helper, and checking for "
+ "it in the TAP output later.");
+}
+
+int
+main (int argc,
+ char *argv[])
+{
+ char *argv1;
+
+ setlocale (LC_ALL, "");
+
+#ifdef G_OS_WIN32
+ /* Windows opens std streams in text mode, with \r\n EOLs.
+ * Sometimes it's easier to force a switch to binary mode than
+ * to account for extra \r in testcases.
+ */
+ setmode (fileno (stdout), O_BINARY);
+#endif
+
+ g_return_val_if_fail (argc > 1, 1);
+ argv1 = argv[1];
+
+ if (argc > 2)
+ memmove (&argv[1], &argv[2], (argc - 2) * sizeof (char *));
+
+ argc -= 1;
+ argv[argc] = NULL;
+
+ if (g_strcmp0 (argv1, "init-null-argv0") == 0)
+ {
+ int test_argc = 0;
+ char *test_argva[1] = { NULL };
+ char **test_argv = test_argva;
+
+ /* Test that `g_test_init()` can handle being called with an empty argv
+ * and argc == 0. While this isn’t recommended, it is possible for another
+ * process to use execve() to call a gtest process this way, so we’d
+ * better handle it gracefully.
+ *
+ * This test can’t be run after `g_test_init()` has been called normally,
+ * as it isn’t allowed to be called more than once in a process. */
+ g_test_init (&test_argc, &test_argv, NULL);
+
+ return 0;
+ }
+
+ g_test_init (&argc, &argv, NULL);
+#if GLIB_CHECK_VERSION(2, 38, 0)
+ g_test_set_nonfatal_assertions ();
+#endif
+
+ if (g_strcmp0 (argv1, "pass") == 0)
+ {
+ g_test_add_func ("/pass", test_pass);
+ }
+ else if (g_strcmp0 (argv1, "messages") == 0)
+ {
+ g_test_add_func ("/messages", test_messages);
+ }
+ else if (g_strcmp0 (argv1, "skip") == 0)
+ {
+ g_test_add_func ("/skip", test_skip);
+ }
+ else if (g_strcmp0 (argv1, "skip-printf") == 0)
+ {
+ g_test_add_func ("/skip-printf", test_skip_printf);
+ }
+ else if (g_strcmp0 (argv1, "incomplete") == 0)
+ {
+ g_test_add_func ("/incomplete", test_incomplete);
+ }
+ else if (g_strcmp0 (argv1, "incomplete-printf") == 0)
+ {
+ g_test_add_func ("/incomplete-printf", test_incomplete_printf);
+ }
+ else if (g_strcmp0 (argv1, "fail") == 0)
+ {
+ g_test_add_func ("/fail", test_fail);
+ }
+ else if (g_strcmp0 (argv1, "fail-printf") == 0)
+ {
+ g_test_add_func ("/fail-printf", test_fail_printf);
+ }
+ else if (g_strcmp0 (argv1, "all-non-failures") == 0)
+ {
+ g_test_add_func ("/pass", test_pass);
+ g_test_add_func ("/skip", test_skip);
+ g_test_add_func ("/incomplete", test_incomplete);
+ }
+ else if (g_strcmp0 (argv1, "all") == 0)
+ {
+ g_test_add_func ("/pass", test_pass);
+ g_test_add_func ("/skip", test_skip);
+ g_test_add_func ("/incomplete", test_incomplete);
+ g_test_add_func ("/fail", test_fail);
+ }
+ else if (g_strcmp0 (argv1, "skip-options") == 0)
+ {
+ /* The caller is expected to skip some of these with
+ * -p/-r, -s/-x and/or --GTestSkipCount */
+ g_test_add_func ("/a", test_pass);
+ g_test_add_func ("/b", test_pass);
+ g_test_add_func ("/b/a", test_pass);
+ g_test_add_func ("/b/b", test_pass);
+ g_test_add_func ("/b/b/a", test_pass);
+ g_test_add_func ("/prefix/a", test_pass);
+ g_test_add_func ("/prefix/b/b", test_pass);
+ g_test_add_func ("/prefix-long/a", test_pass);
+ g_test_add_func ("/c/a", test_pass);
+ g_test_add_func ("/d/a", test_pass);
+ }
+ else if (g_strcmp0 (argv1, "summary") == 0)
+ {
+ g_test_add_func ("/summary", test_summary);
+ }
+ else if (g_strcmp0 (argv1, "assertion-failures") == 0)
+ {
+ /* Use -p to select a specific one of these */
+#define T(x) g_test_add_func ("/assertion-failure/" #x, test_assertion_failure_ ## x)
+ T (nonnull);
+ T (null);
+ T (mem_null_nonnull);
+ T (mem_nonnull_null);
+ T (mem_len);
+ T (mem_cmp);
+ T (cmpfloat_with_epsilon);
+ T (cmpvariant);
+ T (errno);
+ T (cmpstrv_null_nonnull);
+ T (cmpstrv_nonnull_null);
+ T (cmpstrv_len);
+ T (cmpstrv_cmp);
+#undef T
+ }
+ else
+ {
+ g_assert_not_reached ();
+ }
+
+ return g_test_run ();
+}
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