Imported Upstream version 1.4.0 upstream/1.4.0

1 files changed, 1753 insertions, 0 deletions

diff --git a/shared/nm-utils/nm-test-utils.h b/shared/nm-utils/nm-test-utils.h
new file mode 100644
index 00000000..dba41c4b
--- /dev/null
+++ b/shared/nm-utils/nm-test-utils.h
@@ -0,0 +1,1753 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+/*
+ * 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 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, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ * Copyright 2014 Red Hat, Inc.
+ */
+
+#ifndef __NM_TEST_UTILS_H__
+#define __NM_TEST_UTILS_H__
+
+/*******************************************************************************
+ * HOWTO run tests.
+ *
+ * Our tests (make check) include this header-only file nm-test-utils.h.
+ *
+ * Logging:
+ *   In tests, nm-logging redirects to glib logging. By default, glib suppresses all debug
+ *   messages unless you set G_MESSAGES_DEBUG. To enable debug logging, you can explicitly set
+ *   G_MESSAGES_DEBUG. Otherwise, nm-test will set G_MESSAGES_DEBUG=all in debug mode (see below).
+ *   For nm-logging, you can configure the log-level and domains via NMTST_DEBUG environment
+ *   variable.
+ *
+ * Assert-logging:
+ *   Some tests assert against logged messages (g_test_expect_message()).
+ *   By specifying no-expect-message in NMTST_DEBUG, you can disable assert logging
+ *   and g_test_assert_expected_messages() will not fail.
+ *
+ * NMTST_SEED_RAND environment variable:
+ *   Tests that use random numbers from nmtst_get_rand() get seeded randomly at each start.
+ *   You can specify the seed by setting NMTST_SEED_RAND. Also, tests will print the seed
+ *   to stdout, so that you know the choosen seed.
+ *
+ *
+ * NMTST_DEBUG environment variable:
+ *
+ * "debug", "no-debug": when at test is run in debug mode, it might behave differently,
+ *   depending on the test. See nmtst_is_debug().
+ *   Known differences:
+ *    - a test might leave the logging level unspecified. In this case, running in
+ *      debug mode, will turn on DEBUG logging, otherwise WARN logging only.
+ *    - if G_MESSAGES_DEBUG is unset, nm-test will set G_MESSAGES_DEBUG=all
+ *      for tests that don't do assert-logging.
+ *   Debug mode is determined as follows (highest priority first):
+ *    - command line option --debug/--no-debug
+ *    - NMTST_DEBUG=debug/no-debug
+ *    - setting NMTST_DEBUG implies debugging turned on
+ *    - g_test_verbose()
+ *
+ * "no-expect-message": for tests that would assert against log messages, disable
+ *   those asserts.
+ *
+ * "log-level=LEVEL", "log-domains=DOMAIN": reset the log level and domain for tests.
+ *    It only has an effect for nm-logging messages.
+ *    This has no effect if the test asserts against logging (unless no-expect-message),
+ *    otherwise, changing the logging would break tests.
+ *    If you set the level to DEBUG or TRACE, it also sets G_MESSAGES_DEBUG=all (unless
+ *    in assert-logging mode and unless G_MESSAGES_DEBUG is already defined).
+ *
+ * "TRACE", this is shorthand for "log-level=TRACE".
+ *
+ * "D", this is shorthand for "log-level=TRACE,no-expect-message".
+ *
+ * "sudo-cmd=PATH": when running root tests as normal user, the test will execute
+ *   itself by invoking sudo at PATH.
+ *   For example
+ *     NMTST_DEBUG="sudo-cmd=$PWD/tools/test-sudo-wrapper.sh" make -C src/platform/tests/ check
+ *
+ * "slow|quick|thorough": enable/disable long-running tests. This sets nmtst_test_quick().
+ *   Whether long-running tests are enabled is determined as follows (highest priority first):
+ *     - specifying the value in NMTST_DEBUG has highest priority
+ *     - respect g_test_quick(), if the command line contains '-mslow', '-mquick', '-mthorough'.
+ *     - use compile time default
+ *
+ * "p=PATH"|"s=PATH": passes the path to g_test_init() as "-p" and "-s", respectively.
+ *   Unfortunately, these options conflict with "--tap" which our makefile passes to the
+ *   tests, thus it's only useful outside of `make check`.
+ *
+ *******************************************************************************/
+
+#include "nm-default.h"
+
+#if defined(NM_ASSERT_NO_MSG) && NM_ASSERT_NO_MSG
+#undef g_return_if_fail_warning
+#undef g_assertion_message_expr
+#endif
+
+#include <arpa/inet.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "nm-utils.h"
+
+/*******************************************************************************/
+
+#define NMTST_G_RETURN_MSG_S(expr) "*: assertion '"NM_ASSERT_G_RETURN_EXPR(expr)"' failed"
+#define NMTST_G_RETURN_MSG(expr)   NMTST_G_RETURN_MSG_S(#expr)
+
+/*******************************************************************************/
+
+/* general purpose functions that have no dependency on other nmtst functions */
+
+#define nmtst_assert_error(error, expect_error_domain, expect_error_code, expect_error_pattern) \
+	G_STMT_START { \
+		GError *_error = (error); \
+		GQuark _expect_error_domain = (expect_error_domain); \
+		const char *_expect_error_pattern = (expect_error_pattern); \
+		\
+		if (_expect_error_domain) \
+			g_assert_error (_error, _expect_error_domain, (expect_error_code)); \
+		else \
+			g_assert (_error); \
+		g_assert (_error->message); \
+		if (   _expect_error_pattern \
+		    && !g_pattern_match_simple (_expect_error_pattern, _error->message)) { \
+			g_error ("%s:%d: error message does not have expected pattern '%s'. Instead it is '%s' (%s, %d)", \
+			         __FILE__, __LINE__, \
+			         _expect_error_pattern, _error->message, g_quark_to_string (_error->domain), _error->code); \
+		} \
+	} G_STMT_END
+
+#define NMTST_WAIT(max_wait_ms, wait) \
+	({ \
+		gboolean _not_expired = TRUE; \
+		gint64 _nmtst_end, _nmtst_max_wait_us = (max_wait_ms) * 1000L; \
+		\
+		_nmtst_end = g_get_monotonic_time () + _nmtst_max_wait_us; \
+		while (TRUE) { \
+			{ wait }; \
+			if (g_get_monotonic_time () > _nmtst_end) { \
+				_not_expired = FALSE; \
+				break; \
+			} \
+		} \
+		_not_expired; \
+	})
+
+#define NMTST_WAIT_ASSERT(max_wait_ms, wait) \
+	G_STMT_START { \
+		if (!(NMTST_WAIT (max_wait_ms, wait))) \
+			g_assert_not_reached (); \
+	} G_STMT_END
+
+#define nmtst_assert_success(success, error) \
+	G_STMT_START { \
+		g_assert_no_error (error); \
+		g_assert ((success)); \
+	} G_STMT_END
+
+#define nmtst_assert_no_success(success, error) \
+	G_STMT_START { \
+		g_assert (error); \
+		g_assert (!(success)); \
+	} G_STMT_END
+
+/*******************************************************************************/
+
+struct __nmtst_internal
+{
+	GRand *rand0;
+	guint32 rand_seed;
+	GRand *rand;
+	gboolean is_debug;
+	gboolean assert_logging;
+	gboolean no_expect_message;
+	gboolean test_quick;
+	gboolean test_tap_log;
+	char *sudo_cmd;
+	char **orig_argv;
+};
+
+extern struct __nmtst_internal __nmtst_internal;
+
+#define NMTST_DEFINE() \
+struct __nmtst_internal __nmtst_internal = { 0 }; \
+\
+__attribute__ ((destructor)) static void \
+_nmtst_exit (void) \
+{ \
+	__nmtst_internal.assert_logging = FALSE; \
+	g_test_assert_expected_messages (); \
+	nmtst_free (); \
+}
+
+
+inline static gboolean
+nmtst_initialized (void)
+{
+	return !!__nmtst_internal.rand0;
+}
+
+#define __NMTST_LOG(cmd, ...) \
+	G_STMT_START { \
+		g_assert (nmtst_initialized ()); \
+		if (!__nmtst_internal.assert_logging || __nmtst_internal.no_expect_message) { \
+			cmd (__VA_ARGS__); \
+		} else { \
+			printf (_NM_UTILS_MACRO_FIRST (__VA_ARGS__) "\n" _NM_UTILS_MACRO_REST (__VA_ARGS__)); \
+		} \
+	} G_STMT_END
+
+/* split the string inplace at specific delimiters, allowing escaping with '\\'.
+ * Returns a zero terminated array of pointers into @str.
+ *
+ * The caller must g_free() the returned argv array.
+ **/
+inline static char **
+nmtst_str_split (char *str, const char *delimiters)
+{
+	const char *d;
+	GArray *result = g_array_sized_new (TRUE, FALSE, sizeof (char *), 3);
+
+	g_assert (str);
+	g_assert (delimiters && !strchr (delimiters, '\\'));
+
+	while (*str) {
+		gsize i = 0, j = 0;
+
+		while (TRUE) {
+			char c = str[i];
+
+			if (c == '\0') {
+				str[j++] = 0;
+				break;
+			} else if (c == '\\') {
+				str[j++] = str[++i];
+				if (!str[i])
+					break;
+			} else {
+				for (d = delimiters; *d; d++) {
+					if (c == *d) {
+						str[j++] = 0;
+						i++;
+						goto BREAK_INNER_LOOPS;
+					}
+				}
+				str[j++] = c;
+			}
+			i++;
+		}
+
+BREAK_INNER_LOOPS:
+		g_array_append_val (result, str);
+		str = &str[i];
+	}
+
+	return (char **) g_array_free (result, FALSE);
+}
+
+
+/* free instances allocated by nmtst (especially nmtst_init()) on shutdown
+ * to release memory. After nmtst_free(), the test is uninitialized again. */
+inline static void
+nmtst_free (void)
+{
+	if (!nmtst_initialized ())
+		return;
+
+	g_rand_free (__nmtst_internal.rand0);
+	if (__nmtst_internal.rand)
+		g_rand_free (__nmtst_internal.rand);
+	g_free (__nmtst_internal.sudo_cmd);
+	g_strfreev (__nmtst_internal.orig_argv);
+
+	memset (&__nmtst_internal, 0, sizeof (__nmtst_internal));
+}
+
+inline static void
+__nmtst_init (int *argc, char ***argv, gboolean assert_logging, const char *log_level, const char *log_domains, gboolean *out_set_logging)
+{
+	const char *nmtst_debug;
+	gboolean is_debug = FALSE;
+	char *c_log_level = NULL, *c_log_domains = NULL;
+	char *sudo_cmd = NULL;
+	GArray *debug_messages = g_array_new (TRUE, FALSE, sizeof (char *));
+	int i;
+	gboolean no_expect_message = FALSE;
+	gboolean _out_set_logging;
+	gboolean test_quick = FALSE;
+	gboolean test_quick_set = FALSE;
+	gboolean test_quick_argv = FALSE;
+	gs_unref_ptrarray GPtrArray *p_tests = NULL;
+	gs_unref_ptrarray GPtrArray *s_tests = NULL;
+
+	if (!out_set_logging)
+		out_set_logging = &_out_set_logging;
+	*out_set_logging = FALSE;
+
+	g_assert (!nmtst_initialized ());
+
+	g_assert (!((!!argc) ^ (!!argv)));
+	g_assert (!argc || (g_strv_length (*argv) == *argc));
+	g_assert (!assert_logging || (!log_level && !log_domains));
+
+#ifdef __NETWORKMANAGER_UTILS_H__
+	if (!nm_utils_get_testing_initialized ())
+		_nm_utils_set_testing (_NM_UTILS_TEST_GENERAL);
+#endif
+
+	if (argc)
+		__nmtst_internal.orig_argv = g_strdupv (*argv);
+
+	__nmtst_internal.assert_logging = !!assert_logging;
+
+	nm_g_type_init ();
+
+	is_debug = g_test_verbose ();
+
+	nmtst_debug = g_getenv ("NMTST_DEBUG");
+	if (nmtst_debug) {
+		char **d_argv, **i_argv, *nmtst_debug_copy;
+
+		/* By setting then NMTST_DEBUG variable, @is_debug is set automatically.
+		 * This can be reverted with no-debug (on command line or environment variable). */
+		is_debug = TRUE;
+
+		nmtst_debug_copy = g_strdup (nmtst_debug);
+		d_argv = nmtst_str_split (nmtst_debug_copy, ",; \t\r\n");
+
+		for (i_argv = d_argv; *i_argv; i_argv++) {
+			const char *debug = *i_argv;
+
+			if (!g_ascii_strcasecmp (debug, "debug"))
+				is_debug = TRUE;
+			else if (!g_ascii_strcasecmp (debug, "no-debug")) {
+				/* when specifying the NMTST_DEBUG variable, we set is_debug to true. Use this flag to disable this
+				 * (e.g. for only setting the log-level, but not is_debug). */
+				is_debug = FALSE;
+			} else if (!g_ascii_strncasecmp (debug, "log-level=", strlen ("log-level="))) {
+				g_free (c_log_level);
+				log_level = c_log_level = g_strdup (&debug[strlen ("log-level=")]);
+			} else if (!g_ascii_strcasecmp (debug, "D")) {
+				/* shorthand for "log-level=TRACE,no-expect-message" */
+				g_free (c_log_level);
+				log_level = c_log_level = g_strdup ("TRACE");
+				no_expect_message = TRUE;
+			} else if (!g_ascii_strcasecmp (debug, "TRACE")) {
+				g_free (c_log_level);
+				log_level = c_log_level = g_strdup ("TRACE");
+			} else if (!g_ascii_strncasecmp (debug, "log-domains=", strlen ("log-domains="))) {
+				g_free (c_log_domains);
+				log_domains = c_log_domains = g_strdup (&debug[strlen ("log-domains=")]);
+			} else if (!g_ascii_strncasecmp (debug, "sudo-cmd=", strlen ("sudo-cmd="))) {
+				g_free (sudo_cmd);
+				sudo_cmd = g_strdup (&debug[strlen ("sudo-cmd=")]);
+			} else if (!g_ascii_strcasecmp (debug, "no-expect-message")) {
+				no_expect_message = TRUE;
+			} else if (!g_ascii_strncasecmp (debug, "p=", strlen ("p="))) {
+				if (!p_tests)
+					p_tests = g_ptr_array_new_with_free_func (g_free);
+				g_ptr_array_add (p_tests, g_strdup (&debug[strlen ("p=")]));
+			} else if (!g_ascii_strncasecmp (debug, "s=", strlen ("s="))) {
+				if (!s_tests)
+					s_tests = g_ptr_array_new_with_free_func (g_free);
+				g_ptr_array_add (s_tests, g_strdup (&debug[strlen ("s=")]));
+			} else if (!g_ascii_strcasecmp (debug, "slow") || !g_ascii_strcasecmp (debug, "thorough")) {
+				test_quick = FALSE;
+				test_quick_set = TRUE;
+			} else if (!g_ascii_strcasecmp (debug, "quick")) {
+				test_quick = TRUE;
+				test_quick_set = TRUE;
+			} else {
+				char *msg = g_strdup_printf (">>> nmtst: ignore unrecognized NMTST_DEBUG option \"%s\"", debug);
+
+				g_array_append_val (debug_messages, msg);
+			}
+		}
+
+		g_free (d_argv);
+		g_free (nmtst_debug_copy);
+	}
+
+	if (__nmtst_internal.orig_argv) {
+		char **a = __nmtst_internal.orig_argv;
+
+		for (; *a; a++) {
+			if (!g_ascii_strcasecmp (*a, "--debug"))
+				is_debug = TRUE;
+			else if (!g_ascii_strcasecmp (*a, "--no-debug"))
+				is_debug = FALSE;
+			else if (   !strcmp (*a, "-m=slow")
+			         || !strcmp (*a, "-m=thorough")
+			         || !strcmp (*a, "-m=quick")
+			         || (!strcmp (*a, "-m") && *(a+1)
+			                                && (   !strcmp (*(a+1), "quick")
+			                                    || !strcmp (*(a+1), "slow")
+			                                    || !strcmp (*(a+1), "thorough"))))
+				test_quick_argv = TRUE;
+			else if (strcmp (*a, "--tap") == 0)
+				__nmtst_internal.test_tap_log = TRUE;
+		}
+	}
+
+	if (!argc || g_test_initialized ()) {
+		if (p_tests || s_tests) {
+			char *msg = g_strdup_printf (">>> nmtst: ignore -p and -s options for test which calls g_test_init() itself");
+
+			g_array_append_val (debug_messages, msg);
+		}
+	} else {
+		/* g_test_init() is a variadic function, so we cannot pass it
+		 * (variadic) arguments. If you need to pass additional parameters,
+		 * call nmtst_init() with argc==NULL and call g_test_init() yourself. */
+
+		/* g_test_init() sets g_log_set_always_fatal() for G_LOG_LEVEL_WARNING
+		 * and G_LOG_LEVEL_CRITICAL. So, beware that the test will fail if you
+		 * have any WARN or ERR log messages -- unless you g_test_expect_message(). */
+		GPtrArray *arg_array = g_ptr_array_new ();
+		gs_free char **arg_array_c = NULL;
+		int arg_array_n, j;
+		static char **s_tests_x, **p_tests_x;
+
+		if (*argc) {
+			for (i = 0; i < *argc; i++)
+				g_ptr_array_add (arg_array, (*argv)[i]);
+		} else
+			g_ptr_array_add (arg_array, "./test");
+
+		if (test_quick_set && !test_quick_argv)
+			g_ptr_array_add (arg_array, "-m=quick");
+
+		if (!__nmtst_internal.test_tap_log) {
+			for (i = 0; p_tests && i < p_tests->len; i++) {
+				g_ptr_array_add (arg_array, "-p");
+				g_ptr_array_add (arg_array, p_tests->pdata[i]);
+			}
+			for (i = 0; s_tests && i < s_tests->len; i++) {
+				g_ptr_array_add (arg_array, "-s");
+				g_ptr_array_add (arg_array, s_tests->pdata[i]);
+			}
+		} else if (p_tests || s_tests) {
+			char *msg = g_strdup_printf (">>> nmtst: ignore -p and -s options for tap-tests");
+
+			g_array_append_val (debug_messages, msg);
+		}
+
+		g_ptr_array_add (arg_array, NULL);
+
+		arg_array_n = arg_array->len - 1;
+		arg_array_c = (char **) g_ptr_array_free (arg_array, FALSE);
+
+		g_test_init (&arg_array_n, &arg_array_c, NULL);
+
+		if (*argc > 1) {
+			/* collaps argc/argv by removing the arguments detected
+			 * by g_test_init(). */
+			for (i = 1, j = 1; i < *argc; i++) {
+				if ((*argv)[i] == arg_array_c[j])
+					j++;
+				else
+					(*argv)[i] = NULL;
+			}
+			for (i = 1, j = 1; i < *argc; i++) {
+				if ((*argv)[i]) {
+					(*argv)[j++] = (*argv)[i];
+					if (i >= j)
+						(*argv)[i] = NULL;
+				}
+			}
+			*argc = j;
+		}
+
+		/* we must "leak" the test paths because they are not cloned by g_test_init(). */
+		if (!__nmtst_internal.test_tap_log) {
+			if (p_tests) {
+				p_tests_x = (char **) g_ptr_array_free (p_tests, FALSE);
+				p_tests = NULL;
+			}
+			if (s_tests) {
+				s_tests_x = (char **) g_ptr_array_free (s_tests, FALSE);
+				s_tests = NULL;
+			}
+		}
+	}
+
+	if (test_quick_set)
+		__nmtst_internal.test_quick = test_quick;
+	else if (test_quick_argv)
+		__nmtst_internal.test_quick = g_test_quick ();
+	else {
+#ifdef NMTST_TEST_QUICK
+		__nmtst_internal.test_quick = NMTST_TEST_QUICK;
+#else
+		__nmtst_internal.test_quick = FALSE;
+#endif
+	}
+
+	__nmtst_internal.is_debug = is_debug;
+	__nmtst_internal.rand0 = g_rand_new_with_seed (0);
+	__nmtst_internal.sudo_cmd = sudo_cmd;
+	__nmtst_internal.no_expect_message = no_expect_message;
+
+	if (!log_level && log_domains) {
+		/* if the log level is not specified (but the domain is), we assume
+		 * the caller wants to set it depending on is_debug */
+		log_level = is_debug ? "DEBUG" : "WARN";
+	}
+
+	if (!__nmtst_internal.assert_logging) {
+		gboolean success = TRUE;
+#ifdef _NMTST_INSIDE_CORE
+		success = nm_logging_setup (log_level, log_domains, NULL, NULL);
+		*out_set_logging = TRUE;
+#endif
+		g_assert (success);
+#if GLIB_CHECK_VERSION(2,34,0)
+		if (__nmtst_internal.no_expect_message)
+			g_log_set_always_fatal (G_LOG_FATAL_MASK);
+#else
+		/* g_test_expect_message() is a NOP, so allow any messages */
+		g_log_set_always_fatal (G_LOG_FATAL_MASK);
+#endif
+	} else if (__nmtst_internal.no_expect_message) {
+		/* We have a test that would be assert_logging, but the user specified no_expect_message.
+		 * This transforms g_test_expect_message() into a NOP, but we also have to relax
+		 * g_log_set_always_fatal(), which was set by g_test_init(). */
+		g_log_set_always_fatal (G_LOG_FATAL_MASK);
+#ifdef _NMTST_INSIDE_CORE
+		if (c_log_domains || c_log_level) {
+			/* Normally, tests with assert_logging do not overwrite the logging level/domains because
+			 * the logging statements are part of the assertions. But if the test is run with
+			 * no-expect-message *and* the logging is set explicitly via environment variables,
+			 * we still reset the logging. */
+			gboolean success;
+
+			success = nm_logging_setup (log_level, log_domains, NULL, NULL);
+			*out_set_logging = TRUE;
+			g_assert (success);
+		}
+#endif
+	} else {
+#if GLIB_CHECK_VERSION(2,34,0)
+		/* We were called not to set logging levels. This means, that the user
+		 * expects to assert against (all) messages. Any uncought message is fatal. */
+		g_log_set_always_fatal (G_LOG_LEVEL_MASK);
+#else
+		/* g_test_expect_message() is a NOP, so allow any messages */
+		g_log_set_always_fatal (G_LOG_FATAL_MASK);
+#endif
+	}
+
+	if ((!__nmtst_internal.assert_logging || (__nmtst_internal.assert_logging && __nmtst_internal.no_expect_message)) &&
+	    (is_debug || (c_log_level && (!g_ascii_strcasecmp (c_log_level, "DEBUG") || !g_ascii_strcasecmp (c_log_level, "TRACE")))) &&
+	    !g_getenv ("G_MESSAGES_DEBUG"))
+	{
+		/* if we are @is_debug or @log_level=="DEBUG" and
+		 * G_MESSAGES_DEBUG is unset, we set G_MESSAGES_DEBUG=all.
+		 * To disable this default behaviour, set G_MESSAGES_DEBUG='' */
+
+		/* Note that g_setenv is not thread safe, but you should anyway call
+		 * nmtst_init() at the very start. */
+		g_setenv ("G_MESSAGES_DEBUG", "all", TRUE);
+	}
+
+	/* Delay messages until we setup logging. */
+	for (i = 0; i < debug_messages->len; i++)
+		__NMTST_LOG (g_message, "%s", g_array_index (debug_messages, const char *, i));
+
+	g_strfreev ((char **) g_array_free (debug_messages, FALSE));
+	g_free (c_log_level);
+	g_free (c_log_domains);
+
+#ifdef __NETWORKMANAGER_UTILS_H__
+	/* ensure that monotonic timestamp is called (because it initially logs a line) */
+	nm_utils_get_monotonic_timestamp_s ();
+#endif
+
+#ifdef NM_UTILS_H
+	{
+		gs_free_error GError *error = NULL;
+
+		if (!nm_utils_init (&error))
+			g_assert_not_reached ();
+		g_assert_no_error (error);
+	}
+#endif
+}
+
+#ifndef _NMTST_INSIDE_CORE
+inline static void
+nmtst_init (int *argc, char ***argv, gboolean assert_logging)
+{
+	__nmtst_init (argc, argv, assert_logging, NULL, NULL, NULL);
+}
+#endif
+
+inline static gboolean
+nmtst_is_debug (void)
+{
+	g_assert (nmtst_initialized ());
+	return __nmtst_internal.is_debug;
+}
+
+inline static gboolean
+nmtst_test_quick (void)
+{
+	g_assert (nmtst_initialized ());
+	return __nmtst_internal.test_quick;
+}
+
+#if GLIB_CHECK_VERSION(2,34,0)
+#undef g_test_expect_message
+#define g_test_expect_message(...) \
+	G_STMT_START { \
+		g_assert (nmtst_initialized ()); \
+		if (__nmtst_internal.assert_logging && __nmtst_internal.no_expect_message) { \
+			g_debug ("nmtst: assert-logging: g_test_expect_message %s", G_STRINGIFY ((__VA_ARGS__))); \
+		} else { \
+			G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
+			g_test_expect_message (__VA_ARGS__); \
+			G_GNUC_END_IGNORE_DEPRECATIONS \
+		} \
+	} G_STMT_END
+#undef g_test_assert_expected_messages_internal
+#define g_test_assert_expected_messages_internal(domain, file, line, func) \
+	G_STMT_START { \
+		const char *_domain = (domain); \
+		const char *_file = (file); \
+		const char *_func = (func); \
+		int _line = (line); \
+		\
+		if (__nmtst_internal.assert_logging && __nmtst_internal.no_expect_message) \
+			g_debug ("nmtst: assert-logging: g_test_assert_expected_messages(%s, %s:%d, %s)", _domain?:"", _file?:"", _line, _func?:""); \
+		\
+		G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
+		g_test_assert_expected_messages_internal (_domain, _file, _line, _func); \
+		G_GNUC_END_IGNORE_DEPRECATIONS \
+	} G_STMT_END
+#endif
+
+/*****************************************************************************/
+
+typedef struct _NmtstTestData NmtstTestData;
+
+typedef void (*NmtstTestDataRelease) (const NmtstTestData *test_data);
+
+struct _NmtstTestData {
+	const char *testpath;
+	NmtstTestDataRelease fcn_release;
+	gsize n_args;
+	gpointer args[1];
+};
+
+inline static void
+_nmtst_test_data_unpack (const NmtstTestData *test_data, gsize n_args, ...)
+{
+	gsize i;
+	va_list ap;
+	gpointer *p;
+
+	g_assert (test_data);
+	g_assert_cmpint (n_args, ==, test_data->n_args);
+
+	va_start (ap, n_args);
+	for (i = 0; i < n_args; i++) {
+		p = va_arg (ap, gpointer *);
+
+		g_assert (p);
+		*p = test_data->args[i];
+	}
+	va_end (ap);
+}
+#define nmtst_test_data_unpack(test_data, ...) _nmtst_test_data_unpack(test_data, NM_NARG (__VA_ARGS__), ##__VA_ARGS__)
+
+inline static void
+_nmtst_test_data_free (gpointer data)
+{
+	NmtstTestData *test_data = data;
+
+	g_assert (test_data);
+
+	if (test_data->fcn_release)
+		test_data->fcn_release (test_data);
+
+	g_free ((gpointer) test_data->testpath);
+	g_free (test_data);
+}
+
+inline static void
+_nmtst_add_test_func_full (const char *testpath, GTestDataFunc test_func, NmtstTestDataRelease fcn_release, gsize n_args, ...)
+{
+	gsize i;
+	NmtstTestData *data;
+	va_list ap;
+
+	data = g_malloc (G_STRUCT_OFFSET (NmtstTestData, args) + sizeof (gpointer) * (n_args + 1));
+
+	data->testpath = g_strdup (testpath);
+	data->fcn_release = fcn_release;
+	data->n_args = n_args;
+	va_start (ap, n_args);
+	for (i = 0; i < n_args; i++)
+		data->args[i] = va_arg (ap, gpointer);
+	data->args[i] = NULL;
+	va_end (ap);
+
+	g_test_add_data_func_full (testpath,
+	                           data,
+	                           test_func,
+	                           _nmtst_test_data_free);
+}
+#define nmtst_add_test_func_full(testpath, test_func, fcn_release, ...) _nmtst_add_test_func_full(testpath, test_func, fcn_release, NM_NARG (__VA_ARGS__), ##__VA_ARGS__)
+#define nmtst_add_test_func(testpath, test_func, ...) nmtst_add_test_func_full(testpath, test_func, NULL, ##__VA_ARGS__)
+
+/*****************************************************************************/
+
+inline static GRand *
+nmtst_get_rand0 (void)
+{
+	g_assert (nmtst_initialized ());
+	return __nmtst_internal.rand0;
+}
+
+inline static GRand *
+nmtst_get_rand (void)
+{
+	g_assert (nmtst_initialized ());
+
+	if (G_UNLIKELY (!__nmtst_internal.rand)) {
+		guint32 seed;
+		const char *str;
+
+		if ((str = g_getenv ("NMTST_SEED_RAND"))) {
+			gchar *s;
+			gint64 i;
+
+			i = g_ascii_strtoll (str, &s, 0);
+			g_assert (s[0] == '\0' && i >= 0 && i < G_MAXUINT32);
+
+			seed = i;
+			__nmtst_internal.rand = g_rand_new_with_seed (seed);
+		} else {
+			__nmtst_internal.rand = g_rand_new ();
+
+			seed = g_rand_int (__nmtst_internal.rand);
+			g_rand_set_seed (__nmtst_internal.rand, seed);
+		}
+		__nmtst_internal.rand_seed = seed;
+
+		g_print ("\nnmtst: initialize nmtst_get_rand() with NMTST_SEED_RAND=%u\n", seed);
+	}
+	return __nmtst_internal.rand;
+}
+
+inline static guint32
+nmtst_get_rand_int (void)
+{
+	return g_rand_int (nmtst_get_rand ());
+}
+
+inline static gpointer
+nmtst_rand_buf (GRand *rand, gpointer buffer, gsize buffer_length)
+{
+	guint32 v;
+	guint8 *b = buffer;
+
+	if (!buffer_length)
+		return buffer;
+
+	g_assert (buffer);
+
+	if (!rand)
+		rand = nmtst_get_rand ();
+
+	for (; buffer_length >= sizeof (guint32); buffer_length -= sizeof (guint32), b += sizeof (guint32)) {
+		v = g_rand_int (rand);
+		memcpy (b, &v, sizeof (guint32));
+	}
+	if (buffer_length > 0) {
+		v = g_rand_int (rand);
+		do {
+			*(b++) = v & 0xFF;
+			v >>= 8;
+		} while (--buffer_length > 0);
+	}
+	return buffer;
+}
+
+inline static void *
+nmtst_rand_perm (GRand *rand, void *dst, const void *src, gsize elmt_size, gsize n_elmt)
+{
+	gsize i, j;
+	char *p_, *pj;
+	char *bu;
+
+	g_assert (dst);
+	g_assert (elmt_size > 0);
+	g_assert (n_elmt < G_MAXINT32);
+
+	if (n_elmt == 0)
+		return dst;
+
+	if (src && dst != src)
+		memcpy (dst, src, elmt_size * n_elmt);
+
+	if (!rand)
+		rand = nmtst_get_rand ();
+
+	bu = g_slice_alloc (elmt_size);
+
+	p_ = dst;
+	for (i = n_elmt; i > 1; i--) {
+		j = g_rand_int_range (rand, 0, i);
+
+		if (j != 0) {
+			pj = &p_[j * elmt_size];
+
+			/* swap */
+			memcpy (bu, p_, elmt_size);
+			memcpy (p_, pj, elmt_size);
+			memcpy (pj, bu, elmt_size);
+		}
+		p_ += elmt_size;
+	}
+
+	g_slice_free1 (elmt_size, bu);
+	return dst;
+}
+
+/*****************************************************************************/
+
+inline static gboolean
+_nmtst_main_loop_run_timeout (gpointer user_data)
+{
+	GMainLoop **p_loop = user_data;
+
+	g_assert (p_loop);
+	g_assert (*p_loop);
+
+	g_main_loop_quit (*p_loop);
+	*p_loop = NULL;
+
+	return G_SOURCE_REMOVE;
+}
+
+inline static gboolean
+nmtst_main_loop_run (GMainLoop *loop, int timeout_ms)
+{
+	GSource *source = NULL;
+	guint id = 0;
+	GMainLoop *loopx = loop;
+
+	if (timeout_ms > 0) {
+		source = g_timeout_source_new (timeout_ms);
+		g_source_set_callback (source, _nmtst_main_loop_run_timeout, &loopx, NULL);
+		id = g_source_attach (source, g_main_loop_get_context (loop));
+		g_assert (id);
+		g_source_unref (source);
+	}
+
+	g_main_loop_run (loop);
+
+	/* if the timeout was reached, return FALSE. */
+	return loopx != NULL;
+}
+
+inline static void
+_nmtst_main_loop_quit_on_notify (GObject *object, GParamSpec *pspec, gpointer user_data)
+{
+	GMainLoop *loop = user_data;
+
+	g_assert (G_IS_OBJECT (object));
+	g_assert (loop);
+
+	g_main_loop_quit (loop);
+}
+#define nmtst_main_loop_quit_on_notify ((GCallback) _nmtst_main_loop_quit_on_notify)
+
+/*****************************************************************************/
+
+inline static const char *
+nmtst_get_sudo_cmd (void)
+{
+	g_assert (nmtst_initialized ());
+	return __nmtst_internal.sudo_cmd;
+}
+
+inline static void
+nmtst_reexec_sudo (void)
+{
+	char *str;
+	char **argv;
+	int i;
+	int errsv;
+
+	g_assert (nmtst_initialized ());
+	g_assert (__nmtst_internal.orig_argv);
+
+	if (!__nmtst_internal.sudo_cmd)
+		return;
+
+	str = g_strjoinv (" ", __nmtst_internal.orig_argv);
+	__NMTST_LOG (g_message, ">> exec %s %s", __nmtst_internal.sudo_cmd, str);
+
+	argv = g_new0 (char *, 1 + g_strv_length (__nmtst_internal.orig_argv) + 1);
+	argv[0] = __nmtst_internal.sudo_cmd;
+	for (i = 0; __nmtst_internal.orig_argv[i]; i++)
+		argv[i+1] = __nmtst_internal.orig_argv[i];
+
+	execvp (__nmtst_internal.sudo_cmd, argv);
+
+	errsv = errno;
+	g_error (">> exec %s failed: %d - %s", __nmtst_internal.sudo_cmd, errsv, strerror (errsv));
+}
+
+/*****************************************************************************/
+
+inline static gsize
+nmtst_find_all_indexes (gpointer *elements,
+                        gsize n_elements,
+                        gpointer *needles,
+                        gsize n_needles,
+                        gboolean (*equal_fcn) (gpointer element, gpointer needle, gpointer user_data),
+                        gpointer user_data,
+                        gssize *out_idx)
+{
+	gsize i, j, k;
+	gsize found = 0;
+
+	for (i = 0; i < n_needles; i++) {
+		gssize idx = -1;
+
+		for (j = 0; j < n_elements; j++) {
+
+			/* no duplicates */
+			for (k = 0; k < i; k++) {
+				if (out_idx[k] == j)
+					goto next;
+			}
+
+			if (equal_fcn (elements[j], needles[i], user_data)) {
+				idx = j;
+				break;
+			}
+next:
+			;
+		}
+
+		out_idx[i] = idx;
+		if (idx >= 0)
+			found++;
+	}
+
+	return found;
+}
+
+/*****************************************************************************/
+
+#define __define_nmtst_static(NUM,SIZE) \
+inline static const char * \
+nmtst_static_##SIZE##_##NUM (const char *str) \
+{ \
+	gsize l; \
+	static char buf[SIZE]; \
+\
+	if (!str) \
+		return NULL; \
+	l = g_strlcpy (buf, str, sizeof (buf)); \
+	g_assert (l < sizeof (buf)); \
+	return buf; \
+}
+__define_nmtst_static(01, 1024)
+__define_nmtst_static(02, 1024)
+__define_nmtst_static(03, 1024)
+#undef __define_nmtst_static
+
+inline static const char *
+nmtst_uuid_generate (void)
+{
+	static char u[37];
+	gs_free char *m = NULL;
+
+	m = nm_utils_uuid_generate ();
+	g_assert (m && strlen (m) == sizeof (u) - 1);
+	memcpy (u, m, sizeof (u));
+	return u;
+}
+
+#define NMTST_SWAP(x,y) \
+	G_STMT_START { \
+		char __nmtst_swap_temp[sizeof(x) == sizeof(y) ? (signed) sizeof(x) : -1]; \
+		memcpy(__nmtst_swap_temp, &y, sizeof(x)); \
+		memcpy(&y,                &x, sizeof(x)); \
+		memcpy(&x, __nmtst_swap_temp, sizeof(x)); \
+	} G_STMT_END
+
+#define nmtst_assert_str_has_substr(str, substr) \
+	G_STMT_START { \
+		const char *__str = (str); \
+		const char *__substr = (substr); \
+		\
+		g_assert (__str); \
+		g_assert (__substr); \
+		if (strstr (__str, __substr) == NULL) \
+			g_error ("%s:%d: Expects \"%s\" but got \"%s\"", __FILE__, __LINE__, __substr, __str); \
+	} G_STMT_END
+
+inline static guint32
+nmtst_inet4_from_string (const char *str)
+{
+	guint32 addr;
+	int success;
+
+	if (!str)
+		return 0;
+
+	success = inet_pton (AF_INET, str, &addr);
+
+	g_assert (success == 1);
+
+	return addr;
+}
+
+inline static const struct in6_addr *
+nmtst_inet6_from_string (const char *str)
+{
+	static struct in6_addr addr;
+	int success;
+
+	if (!str)
+		addr = in6addr_any;
+	else {
+		success = inet_pton (AF_INET6, str, &addr);
+		g_assert (success == 1);
+	}
+
+	return &addr;
+}
+
+inline static void
+_nmtst_assert_ip4_address (const char *file, int line, in_addr_t addr, const char *str_expected)
+{
+	if (nmtst_inet4_from_string (str_expected) != addr) {
+		char buf[100];
+
+		g_error ("%s:%d: Unexpected IPv4 address: expected %s, got %s",
+		         file, line, str_expected ? str_expected : "0.0.0.0",
+		         inet_ntop (AF_INET, &addr, buf, sizeof (buf)));
+	}
+}
+#define nmtst_assert_ip4_address(addr, str_expected) _nmtst_assert_ip4_address (__FILE__, __LINE__, addr, str_expected)
+
+inline static void
+_nmtst_assert_ip6_address (const char *file, int line, const struct in6_addr *addr, const char *str_expected)
+{
+	struct in6_addr any = in6addr_any;
+
+	if (!addr)
+		addr = &any;
+
+	if (memcmp (nmtst_inet6_from_string (str_expected), addr, sizeof (*addr)) != 0) {
+		char buf[100];
+
+		g_error ("%s:%d: Unexpected IPv6 address: expected %s, got %s",
+		         file, line, str_expected ? str_expected : "::",
+		         inet_ntop (AF_INET6, addr, buf, sizeof (buf)));
+	}
+}
+#define nmtst_assert_ip6_address(addr, str_expected) _nmtst_assert_ip6_address (__FILE__, __LINE__, addr, str_expected)
+
+#define nmtst_spawn_sync(working_directory, standard_out, standard_err, assert_exit_status, ...) \
+	__nmtst_spawn_sync (working_directory, standard_out, standard_err, assert_exit_status, ##__VA_ARGS__, NULL)
+inline static gint
+__nmtst_spawn_sync (const char *working_directory, char **standard_out, char **standard_err, int assert_exit_status, ...) G_GNUC_NULL_TERMINATED;
+inline static gint
+__nmtst_spawn_sync (const char *working_directory, char **standard_out, char **standard_err, int assert_exit_status, ...)
+{
+	gint exit_status = 0;
+	GError *error = NULL;
+	char *arg;
+	va_list va_args;
+	GPtrArray *argv = g_ptr_array_new ();
+	gboolean success;
+
+	va_start (va_args, assert_exit_status);
+	while ((arg = va_arg (va_args, char *)))
+		g_ptr_array_add (argv, arg);
+	va_end (va_args);
+
+	g_assert (argv->len >= 1);
+	g_ptr_array_add (argv, NULL);
+
+	success = g_spawn_sync (working_directory,
+	                        (char**) argv->pdata,
+	                        NULL,
+	                        0 /*G_SPAWN_DEFAULT*/,
+	                        NULL,
+	                        NULL,
+	                        standard_out,
+	                        standard_err,
+	                        &exit_status,
+	                        &error);
+	if (!success)
+		g_error ("nmtst_spawn_sync(%s): %s", ((char **) argv->pdata)[0], error->message);
+	g_assert (!error);
+
+	g_assert (!standard_out || *standard_out);
+	g_assert (!standard_err || *standard_err);
+
+	if (assert_exit_status != -1) {
+		/* exit status is a guint8 on success. Set @assert_exit_status to -1
+		 * not to check for the exit status. */
+		g_assert (WIFEXITED (exit_status));
+		g_assert_cmpint (WEXITSTATUS (exit_status), ==, assert_exit_status);
+	}
+
+	g_ptr_array_free (argv, TRUE);
+	return exit_status;
+}
+
+/*******************************************************************************/
+
+inline static char *
+nmtst_file_resolve_relative_path (const char *rel, const char *cwd)
+{
+	gs_free char *cwd_free = NULL;
+
+	g_assert (rel && *rel);
+
+	if (g_path_is_absolute (rel))
+		return g_strdup (rel);
+
+	if (!cwd)
+		cwd = cwd_free = g_get_current_dir ();
+	return g_build_filename (cwd, rel, NULL);
+}
+
+inline static void
+_nmtst_assert_resolve_relative_path_equals (const char *f1, const char *f2, const char *file, int line)
+{
+	gs_free char *p1 = NULL, *p2 = NULL;
+
+	p1 = nmtst_file_resolve_relative_path (f1, NULL);
+	p2 = nmtst_file_resolve_relative_path (f2, NULL);
+	g_assert (p1 && *p1);
+
+	/* Fixme: later we might need to coalesce repeated '/', "./", and "../".
+	 * For now, it's good enough. */
+	if (g_strcmp0 (p1, p2) != 0)
+		g_error ("%s:%d : filenames don't match \"%s\" vs. \"%s\" // \"%s\" - \"%s\"", file, line, f1, f2, p1, p2);
+}
+#define nmtst_assert_resolve_relative_path_equals(f1, f2) _nmtst_assert_resolve_relative_path_equals (f1, f2, __FILE__, __LINE__);
+
+/*******************************************************************************/
+
+#ifdef NM_SETTING_IP_CONFIG_H
+inline static void
+nmtst_setting_ip_config_add_address (NMSettingIPConfig *s_ip,
+                                     const char *address,
+                                     guint prefix)
+{
+	NMIPAddress *addr;
+	int family;
+
+	g_assert (s_ip);
+
+	if (nm_utils_ipaddr_valid (AF_INET, address))
+		family = AF_INET;
+	else if (nm_utils_ipaddr_valid (AF_INET6, address))
+		family = AF_INET6;
+	else
+		g_assert_not_reached ();
+
+	addr = nm_ip_address_new (family, address, prefix, NULL);
+	g_assert (addr);
+	g_assert (nm_setting_ip_config_add_address (s_ip, addr));
+	nm_ip_address_unref (addr);
+}
+
+inline static void
+nmtst_setting_ip_config_add_route (NMSettingIPConfig *s_ip,
+                                   const char *dest,
+                                   guint prefix,
+                                   const char *next_hop,
+                                   gint64 metric)
+{
+	NMIPRoute *route;
+	int family;
+
+	g_assert (s_ip);
+
+	if (nm_utils_ipaddr_valid (AF_INET, dest))
+		family = AF_INET;
+	else if (nm_utils_ipaddr_valid (AF_INET6, dest))
+		family = AF_INET6;
+	else
+		g_assert_not_reached ();
+
+	route = nm_ip_route_new (family, dest, prefix, next_hop, metric, NULL);
+	g_assert (route);
+	g_assert (nm_setting_ip_config_add_route (s_ip, route));
+	nm_ip_route_unref (route);
+}
+#endif /* NM_SETTING_IP_CONFIG_H */
+
+#if (defined(__NM_SIMPLE_CONNECTION_H__) && defined(__NM_SETTING_CONNECTION_H__)) || (defined(NM_CONNECTION_H))
+
+inline static NMConnection *
+nmtst_clone_connection (NMConnection *connection)
+{
+	g_assert (NM_IS_CONNECTION (connection));
+
+#if defined(__NM_SIMPLE_CONNECTION_H__)
+	return nm_simple_connection_new_clone (connection);
+#else
+	return nm_connection_duplicate (connection);
+#endif
+}
+
+inline static NMConnection *
+nmtst_create_minimal_connection (const char *id, const char *uuid, const char *type, NMSettingConnection **out_s_con)
+{
+	NMConnection *con;
+	NMSetting *s_base = NULL;
+	NMSettingConnection *s_con;
+	gs_free char *uuid_free = NULL;
+
+	g_assert (id);
+
+	if (uuid)
+		g_assert (nm_utils_is_uuid (uuid));
+	else
+		uuid = uuid_free = nm_utils_uuid_generate ();
+
+	if (type) {
+		GType type_g;
+
+#if defined(__NM_SIMPLE_CONNECTION_H__)
+		type_g = nm_setting_lookup_type (type);
+#else
+		type_g = nm_connection_lookup_setting_type (type);
+#endif
+
+		g_assert (type_g != G_TYPE_INVALID);
+
+		s_base = g_object_new (type_g, NULL);
+		g_assert (NM_IS_SETTING (s_base));
+	}
+
+#if defined(__NM_SIMPLE_CONNECTION_H__)
+	con = nm_simple_connection_new ();
+#else
+	con = nm_connection_new ();
+#endif
+
+	s_con = NM_SETTING_CONNECTION (nm_setting_connection_new ());
+
+	g_object_set (s_con,
+	              NM_SETTING_CONNECTION_ID, id,
+	              NM_SETTING_CONNECTION_UUID, uuid,
+	              NM_SETTING_CONNECTION_TYPE, type,
+	              NULL);
+	nm_connection_add_setting (con, NM_SETTING (s_con));
+
+	if (s_base)
+		nm_connection_add_setting (con, s_base);
+
+	if (out_s_con)
+		*out_s_con = s_con;
+	return con;
+}
+
+inline static gboolean
+_nmtst_connection_normalize_v (NMConnection *connection, va_list args)
+{
+	GError *error = NULL;
+	gboolean success;
+	gboolean was_modified = FALSE;
+	GHashTable *parameters = NULL;
+	const char *p_name;
+
+	g_assert (NM_IS_CONNECTION (connection));
+
+	while ((p_name = va_arg (args, const char *))) {
+		if (!parameters)
+			parameters =  g_hash_table_new (g_str_hash, g_str_equal);
+		g_hash_table_insert (parameters, (gpointer *) p_name, va_arg (args, gpointer));
+	}
+
+	success = nm_connection_normalize (connection,
+	                                   parameters,
+	                                   &was_modified,
+	                                   &error);
+	g_assert_no_error (error);
+	g_assert (success);
+
+	if (parameters)
+		g_hash_table_destroy (parameters);
+
+	return was_modified;
+}
+
+inline static gboolean
+_nmtst_connection_normalize (NMConnection *connection, ...)
+{
+	gboolean was_modified;
+	va_list args;
+
+	va_start (args, connection);
+	was_modified = _nmtst_connection_normalize_v (connection, args);
+	va_end (args);
+
+	return was_modified;
+}
+#define nmtst_connection_normalize(connection, ...) \
+    _nmtst_connection_normalize(connection, ##__VA_ARGS__, NULL)
+
+inline static NMConnection *
+_nmtst_connection_duplicate_and_normalize (NMConnection *connection, ...)
+{
+	gboolean was_modified;
+	va_list args;
+
+	connection = nmtst_clone_connection (connection);
+
+	va_start (args, connection);
+	was_modified = _nmtst_connection_normalize_v (connection, args);
+	va_end (args);
+
+	return connection;
+}
+#define nmtst_connection_duplicate_and_normalize(connection, ...) \
+    _nmtst_connection_duplicate_and_normalize(connection, ##__VA_ARGS__, NULL)
+
+inline static void
+nmtst_assert_connection_equals (NMConnection *a, gboolean normalize_a, NMConnection *b, gboolean normalize_b)
+{
+	gboolean compare;
+	gs_unref_object NMConnection *a2 = NULL;
+	gs_unref_object NMConnection *b2 = NULL;
+	GHashTable *out_settings = NULL;
+
+	g_assert (NM_IS_CONNECTION (a));
+	g_assert (NM_IS_CONNECTION (b));
+
+	if (normalize_a)
+		a = a2 = nmtst_connection_duplicate_and_normalize (a);
+	if (normalize_b)
+		b = b2 = nmtst_connection_duplicate_and_normalize (b);
+
+	compare = nm_connection_diff (a, b, NM_SETTING_COMPARE_FLAG_EXACT, &out_settings);
+	if (!compare || out_settings) {
+		const char *name, *pname;
+		GHashTable *setting;
+		GHashTableIter iter, iter2;
+
+		__NMTST_LOG (g_message, ">>> ASSERTION nmtst_assert_connection_equals() fails");
+		if (out_settings) {
+			g_hash_table_iter_init (&iter, out_settings);
+			while (g_hash_table_iter_next (&iter, (gpointer *) &name, (gpointer *) &setting)) {
+				__NMTST_LOG (g_message, ">>> differences in setting '%s':", name);
+
+				g_hash_table_iter_init (&iter2, setting);
+				while (g_hash_table_iter_next (&iter2, (gpointer *) &pname, NULL))
+					__NMTST_LOG (g_message, ">>> differences in setting '%s.%s'", name, pname);
+			}
+		}
+
+#ifdef __NM_KEYFILE_INTERNAL_H__
+		{
+			gs_unref_keyfile GKeyFile *kf_a = NULL, *kf_b = NULL;
+			gs_free char *str_a = NULL, *str_b = NULL;
+
+			kf_a = nm_keyfile_write (a, NULL, NULL, NULL);
+			kf_b = nm_keyfile_write (b, NULL, NULL, NULL);
+
+			if (kf_a)
+				str_a = g_key_file_to_data (kf_a, NULL, NULL);
+			if (kf_b)
+				str_b = g_key_file_to_data (kf_b, NULL, NULL);
+
+			__NMTST_LOG (g_message, ">>> Connection A as kf (*WARNING: keyfile representation might not show the difference*):\n%s", str_a);
+			__NMTST_LOG (g_message, ">>> Connection B as kf (*WARNING: keyfile representation might not show the difference*):\n%s", str_b);
+		}
+#endif
+	}
+	g_assert (compare);
+	g_assert (!out_settings);
+
+	compare = nm_connection_compare (a, b, NM_SETTING_COMPARE_FLAG_EXACT);
+	g_assert (compare);
+}
+
+inline static void
+nmtst_assert_connection_verifies (NMConnection *con)
+{
+	/* assert that the connection does verify, it might be normaliziable or not */
+	GError *error = NULL;
+	gboolean success;
+
+	g_assert (NM_IS_CONNECTION (con));
+
+	success = nm_connection_verify (con, &error);
+	g_assert_no_error (error);
+	g_assert (success);
+}
+
+inline static void
+nmtst_assert_connection_verifies_without_normalization (NMConnection *con)
+{
+	/* assert that the connection verifies and does not need any normalization */
+	GError *error = NULL;
+	gboolean success;
+	gboolean was_modified = FALSE;
+	gs_unref_object NMConnection *clone = NULL;
+
+	clone = nmtst_clone_connection (con);
+
+	nmtst_assert_connection_verifies (con);
+
+	success = nm_connection_normalize (clone, NULL, &was_modified, &error);
+	g_assert_no_error (error);
+	g_assert (success);
+	nmtst_assert_connection_equals (con, FALSE, clone, FALSE);
+	g_assert (!was_modified);
+}
+
+inline static void
+nmtst_assert_connection_verifies_and_normalizable (NMConnection *con)
+{
+	/* assert that the connection does verify, but normalization still modifies it */
+	GError *error = NULL;
+	gboolean success;
+	gboolean was_modified = FALSE;
+	gs_unref_object NMConnection *clone = NULL;
+
+	clone = nmtst_clone_connection (con);
+
+	nmtst_assert_connection_verifies (con);
+
+	success = nm_connection_normalize (clone, NULL, &was_modified, &error);
+	g_assert_no_error (error);
+	g_assert (success);
+	g_assert (was_modified);
+
+	/* again! */
+	nmtst_assert_connection_verifies_without_normalization (clone);
+}
+
+inline static void
+nmtst_assert_connection_verifies_after_normalization (NMConnection *con,
+                                                      GQuark expect_error_domain,
+                                                      gint expect_error_code)
+{
+	/* assert that the connection does not verify, but normalization does fix it */
+	GError *error = NULL;
+	gboolean success;
+	gboolean was_modified = FALSE;
+	gs_unref_object NMConnection *clone = NULL;
+
+	clone = nmtst_clone_connection (con);
+
+	success = nm_connection_verify (con, &error);
+	nmtst_assert_error (error, expect_error_domain, expect_error_code, NULL);
+	g_assert (!success);
+	g_clear_error (&error);
+
+	success = nm_connection_normalize (clone, NULL, &was_modified, &error);
+	g_assert_no_error (error);
+	g_assert (success);
+	g_assert (was_modified);
+
+	/* again! */
+	nmtst_assert_connection_verifies_without_normalization (clone);
+}
+
+inline static void
+nmtst_assert_connection_unnormalizable (NMConnection *con,
+                                        GQuark expect_error_domain,
+                                        gint expect_error_code)
+{
+	/* assert that the connection does not verify, and it cannot be fixed by normalization */
+
+	GError *error = NULL;
+	gboolean success;
+	gboolean was_modified = FALSE;
+	gs_unref_object NMConnection *clone = NULL;
+
+	clone = nmtst_clone_connection (con);
+
+	success = nm_connection_verify (con, &error);
+	nmtst_assert_error (error, expect_error_domain, expect_error_code, NULL);
+	g_assert (!success);
+	g_clear_error (&error);
+
+	success = nm_connection_normalize (clone, NULL, &was_modified, &error);
+	nmtst_assert_error (error, expect_error_domain, expect_error_code, NULL);
+	g_assert (!success);
+	g_assert (!was_modified);
+	nmtst_assert_connection_equals (con, FALSE, clone, FALSE);
+	g_clear_error (&error);
+}
+
+inline static void
+nmtst_assert_setting_verifies (NMSetting *setting)
+{
+	/* assert that the setting verifies without an error */
+
+	GError *error = NULL;
+	gboolean success;
+
+	g_assert (NM_IS_SETTING (setting));
+
+	success = nm_setting_verify (setting, NULL, &error);
+	g_assert_no_error (error);
+	g_assert (success);
+}
+
+inline static void
+nmtst_assert_setting_verify_fails (NMSetting *setting,
+                                   GQuark expect_error_domain,
+                                   gint expect_error_code)
+{
+	/* assert that the setting verification fails */
+
+	GError *error = NULL;
+	gboolean success;
+
+	g_assert (NM_IS_SETTING (setting));
+
+	success = nm_setting_verify (setting, NULL, &error);
+	nmtst_assert_error (error, expect_error_domain, expect_error_code, NULL);
+	g_assert (!success);
+	g_clear_error (&error);
+}
+
+#endif
+
+#ifdef __NM_UTILS_H__
+static inline void
+nmtst_assert_hwaddr_equals (gconstpointer hwaddr1, gssize hwaddr1_len, const char *expected, const char *file, int line)
+{
+	guint8 buf2[NM_UTILS_HWADDR_LEN_MAX];
+	gsize hwaddr2_len = 1;
+	const char *p;
+	gboolean success;
+
+	g_assert (hwaddr1_len > 0 && hwaddr1_len <= NM_UTILS_HWADDR_LEN_MAX);
+
+	g_assert (expected);
+	for (p = expected; *p; p++) {
+		if (*p == ':' || *p == '-')
+			hwaddr2_len++;
+	}
+	g_assert (hwaddr2_len <= NM_UTILS_HWADDR_LEN_MAX);
+	g_assert (nm_utils_hwaddr_aton (expected, buf2, hwaddr2_len));
+
+	/* Manually check the entire hardware address instead of using
+	 * nm_utils_hwaddr_matches() because that function doesn't compare
+	 * entire InfiniBand addresses for various (legitimate) reasons.
+	 */
+	success = (hwaddr1_len == hwaddr2_len);
+	if (success)
+		success = !memcmp (hwaddr1, buf2, hwaddr1_len);
+	if (!success) {
+		g_error ("assert: %s:%d: hwaddr '%s' (%zd) expected, but got %s (%zd)",
+		         file, line, expected, hwaddr2_len, nm_utils_hwaddr_ntoa (hwaddr1, hwaddr1_len), hwaddr1_len);
+	}
+}
+#define nmtst_assert_hwaddr_equals(hwaddr1, hwaddr1_len, expected) \
+    nmtst_assert_hwaddr_equals (hwaddr1, hwaddr1_len, expected, __FILE__, __LINE__)
+#endif
+
+#if defined(__NM_SIMPLE_CONNECTION_H__) && defined(__NM_SETTING_CONNECTION_H__) && defined(__NM_KEYFILE_INTERNAL_H__)
+
+inline static NMConnection *
+nmtst_create_connection_from_keyfile (const char *keyfile_str, const char *keyfile_name, const char *base_dir)
+{
+	GKeyFile *keyfile;
+	GError *error = NULL;
+	gboolean success;
+	NMConnection *con;
+
+	g_assert (keyfile_str);
+
+	keyfile =  g_key_file_new ();
+	success = g_key_file_load_from_data (keyfile, keyfile_str, strlen (keyfile_str), G_KEY_FILE_NONE, &error);
+	g_assert_no_error (error);
+	g_assert (success);
+
+	con = nm_keyfile_read (keyfile, keyfile_name, base_dir, NULL, NULL, &error);
+	g_assert_no_error (error);
+	g_assert (NM_IS_CONNECTION (con));
+
+	g_key_file_unref (keyfile);
+
+	nmtst_connection_normalize (con);
+
+	return con;
+}
+
+#endif
+
+#ifdef __NM_CONNECTION_H__
+
+inline static GVariant *
+_nmtst_variant_new_vardict (int dummy, ...)
+{
+	GVariantBuilder builder;
+	va_list ap;
+	const char *name;
+	GVariant *variant;
+
+	g_variant_builder_init (&builder, G_VARIANT_TYPE_VARDICT);
+
+	va_start (ap, dummy);
+	while ((name = va_arg (ap, const char *))) {
+		variant = va_arg (ap, GVariant *);
+		g_variant_builder_add (&builder, "{sv}", name, variant);
+	}
+	va_end (ap);
+
+	return g_variant_builder_end (&builder);
+}
+#define nmtst_variant_new_vardict(...) _nmtst_variant_new_vardict (0, __VA_ARGS__, NULL)
+
+#define nmtst_assert_variant_is_of_type(variant, type) \
+	G_STMT_START { \
+		GVariant *_variantx = (variant); \
+		\
+		g_assert (_variantx); \
+		g_assert (g_variant_is_of_type (_variantx, (type))); \
+	} G_STMT_END
+
+#define nmtst_assert_variant_uint32(variant, val) \
+	G_STMT_START { \
+		GVariant *_variant = (variant); \
+		\
+		nmtst_assert_variant_is_of_type (_variant, G_VARIANT_TYPE_UINT32); \
+		g_assert_cmpint (g_variant_get_uint32 (_variant), ==, (val)); \
+	} G_STMT_END
+
+#define nmtst_assert_variant_string(variant, str) \
+	G_STMT_START { \
+		gsize _l; \
+		GVariant *_variant = (variant); \
+		const char *_str = (str); \
+		\
+		nmtst_assert_variant_is_of_type (_variant, G_VARIANT_TYPE_STRING); \
+		g_assert (_str); \
+		g_assert_cmpstr (g_variant_get_string (_variant, &_l), ==, _str); \
+		g_assert_cmpint (_l, ==, strlen (_str)); \
+	} G_STMT_END
+
+typedef enum {
+	NMTST_VARIANT_EDITOR_CONNECTION,
+	NMTST_VARIANT_EDITOR_SETTING,
+	NMTST_VARIANT_EDITOR_PROPERTY
+} NmtstVariantEditorPhase;
+
+#define NMTST_VARIANT_EDITOR(__connection_variant, __code) \
+	G_STMT_START { \
+		GVariantIter __connection_iter, *__setting_iter; \
+		GVariantBuilder __connection_builder, __setting_builder; \
+		const char *__cur_setting_name, *__cur_property_name; \
+		GVariant *__property_val; \
+		NmtstVariantEditorPhase __phase; \
+                                                                        \
+		g_variant_builder_init (&__connection_builder, NM_VARIANT_TYPE_CONNECTION); \
+		g_variant_iter_init (&__connection_iter, __connection_variant); \
+		 \
+		__phase = NMTST_VARIANT_EDITOR_CONNECTION; \
+		__cur_setting_name = NULL; \
+		__cur_property_name = NULL; \
+		__code; \
+		while (g_variant_iter_next (&__connection_iter, "{&sa{sv}}", &__cur_setting_name, &__setting_iter)) { \
+			g_variant_builder_init (&__setting_builder, NM_VARIANT_TYPE_SETTING); \
+			__phase = NMTST_VARIANT_EDITOR_SETTING; \
+			__cur_property_name = NULL; \
+			__code; \
+			 \
+			while (   __cur_setting_name \
+			       && g_variant_iter_next (__setting_iter, "{&sv}", &__cur_property_name, &__property_val)) { \
+				__phase = NMTST_VARIANT_EDITOR_PROPERTY; \
+				__code; \
+				 \
+				if (__cur_property_name) { \
+					g_variant_builder_add (&__setting_builder, "{sv}", \
+					                       __cur_property_name, \
+					                       __property_val); \
+				} \
+				g_variant_unref (__property_val); \
+			} \
+			 \
+			if (__cur_setting_name) \
+				g_variant_builder_add (&__connection_builder, "{sa{sv}}", __cur_setting_name, &__setting_builder); \
+			else \
+				g_variant_builder_clear (&__setting_builder); \
+			g_variant_iter_free (__setting_iter); \
+		} \
+		 \
+		g_variant_unref (__connection_variant); \
+		 \
+		__connection_variant = g_variant_builder_end (&__connection_builder); \
+	} G_STMT_END;
+
+#define NMTST_VARIANT_ADD_SETTING(__setting_name, __setting_variant) \
+	G_STMT_START { \
+		if (__phase == NMTST_VARIANT_EDITOR_CONNECTION) \
+			g_variant_builder_add (&__connection_builder, "{s@a{sv}}", __setting_name, __setting_variant); \
+	} G_STMT_END
+
+#define NMTST_VARIANT_DROP_SETTING(__setting_name) \
+	G_STMT_START { \
+		if (__phase == NMTST_VARIANT_EDITOR_SETTING && __cur_setting_name) { \
+			if (!strcmp (__cur_setting_name, __setting_name)) \
+				__cur_setting_name = NULL; \
+		} \
+	} G_STMT_END
+
+#define NMTST_VARIANT_ADD_PROPERTY(__setting_name, __property_name, __format_string, __value) \
+	G_STMT_START { \
+		if (__phase == NMTST_VARIANT_EDITOR_SETTING) { \
+			if (!strcmp (__cur_setting_name, __setting_name)) { \
+				g_variant_builder_add (&__setting_builder, "{sv}", __property_name, \
+				                       g_variant_new (__format_string, __value)); \
+			} \
+		} \
+	} G_STMT_END
+
+#define NMTST_VARIANT_DROP_PROPERTY(__setting_name, __property_name) \
+	G_STMT_START { \
+		if (__phase == NMTST_VARIANT_EDITOR_PROPERTY && __cur_property_name) { \
+			if (   !strcmp (__cur_setting_name, __setting_name) \
+			    && !strcmp (__cur_property_name, __property_name)) \
+				__cur_property_name = NULL; \
+		} \
+	} G_STMT_END
+
+#define NMTST_VARIANT_CHANGE_PROPERTY(__setting_name, __property_name, __format_string, __value) \
+	G_STMT_START { \
+		NMTST_VARIANT_DROP_PROPERTY (__setting_name, __property_name); \
+		NMTST_VARIANT_ADD_PROPERTY (__setting_name, __property_name, __format_string, __value); \
+	} G_STMT_END
+
+#endif /* __NM_CONNECTION_H__ */
+
+#endif /* __NM_TEST_UTILS_H__ */