tests: update test helpers and users

Move test-mu-common to mu-test-utils. Use mu_test_init as a wrapper for
g_test_init. Update users.

1 files changed, 150 insertions, 0 deletions

diff --git a/lib/utils/mu-test-utils.cc b/lib/utils/mu-test-utils.cc
new file mode 100644
index 0000000..8e049b2
--- /dev/null
+++ b/lib/utils/mu-test-utils.cc
@@ -0,0 +1,150 @@
+/*
+** Copyright (C) 2008-2022 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
+**
+** This program is free software; you can redistribute it and/or modify it
+** under the terms of the GNU General Public License as published by the
+** Free Software Foundation; either version 3, or (at your option) any
+** later version.
+**
+** This program 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 General Public License for more details.
+**
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software Foundation,
+** Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+**
+*/
+
+#include "config.h"
+
+#include <glib.h>
+#include <glib/gstdio.h>
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <langinfo.h>
+#include <locale.h>
+
+#include "utils/mu-test-utils.hh"
+#include "utils/mu-error.hh"
+
+
+using namespace Mu;
+
+char*
+Mu::test_mu_common_get_random_tmpdir()
+{
+	char* dir;
+	int   res;
+
+	dir = g_strdup_printf("%s%cmu-test-%d%ctest-%x",
+			      g_get_tmp_dir(),
+			      G_DIR_SEPARATOR,
+			      getuid(),
+			      G_DIR_SEPARATOR,
+			      (int)random() * getpid() * (int)time(NULL));
+
+	res = g_mkdir_with_parents(dir, 0700);
+	g_assert(res != -1);
+
+	return dir;
+}
+
+const char*
+Mu::set_tz(const char* tz)
+{
+	static const char* oldtz;
+
+	oldtz = getenv("TZ");
+	if (tz)
+		setenv("TZ", tz, 1);
+	else
+		unsetenv("TZ");
+
+	tzset();
+	return oldtz;
+}
+
+bool
+Mu::set_en_us_utf8_locale()
+{
+	setenv("LC_ALL", "en_US.UTF-8", 1);
+	setlocale(LC_ALL, "en_US.UTF-8");
+
+	if (strcmp(nl_langinfo(CODESET), "UTF-8") != 0) {
+		g_print("Note: Unit tests require the en_US.utf8 locale. "
+			"Ignoring test cases.\n");
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
+static void
+black_hole(void)
+{
+	return; /* do nothing */
+}
+
+void
+Mu::mu_test_init(int *argc, char ***argv)
+{
+	g_test_init(argc, argv, NULL);
+
+	if (!g_test_verbose())
+		g_log_set_handler(
+			NULL,
+			(GLogLevelFlags)(G_LOG_LEVEL_MASK |
+					 G_LOG_FLAG_FATAL | G_LOG_FLAG_RECURSION),
+			(GLogFunc)black_hole, NULL);
+}
+
+
+
+void
+Mu::allow_warnings()
+{
+	g_test_log_set_fatal_handler(
+	    [](const char*, GLogLevelFlags, const char*, gpointer) { return FALSE; },
+	    {});
+}
+
+
+
+Mu::TempDir::TempDir(bool autodelete): autodelete_{autodelete}
+{
+	GError *err{};
+	gchar *tmpdir = g_dir_make_tmp("mu-tmp-XXXXXX", &err);
+	if (!tmpdir)
+		throw Mu::Error(Error::Code::File, &err,
+				"failed to create temporary directory");
+
+	path_ = tmpdir;
+	g_free(tmpdir);
+
+	g_debug("created '%s'", path_.c_str());
+}
+
+Mu::TempDir::~TempDir()
+{
+	if (::access(path_.c_str(), F_OK) != 0)
+		return; /* nothing to do */
+
+	if (!autodelete_) {
+		g_debug("_not_ deleting %s", path_.c_str());
+		return;
+	}
+
+	/* ugly */
+	GError *err{};
+	const auto cmd{format("/bin/rm -rf '%s'", path_.c_str())};
+	if (!g_spawn_command_line_sync(cmd.c_str(), NULL, NULL, NULL, &err)) {
+		g_warning("error: %s\n", err ? err->message : "?");
+		g_clear_error(&err);
+	} else
+		g_debug("removed '%s'", path_.c_str());
+}