tests: move to subdir, move to meson

De-clutter the source directories a bit. Ensure tests build with meson, and
remove from autotools in a few places (no need to do things twice).

lib/tests/test-mu-container.cc

@@ -0,0 +1,80 @@
+/*
+** Copyright (C) 2014  Jakub Sitnicki <jsitnicki@gmail.com>
+**
+** 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 "test-mu-common.hh"
+#include "mu-container.hh"
+
+static gboolean
+container_has_children(const MuContainer* c)
+{
+	return c && c->child;
+}
+
+static gboolean
+container_is_sibling_of(const MuContainer* c, const MuContainer* sibling)
+{
+	const MuContainer* cur;
+
+	for (cur = c; cur; cur = cur->next) {
+		if (cur == sibling)
+			return TRUE;
+	}
+
+	return container_is_sibling_of(sibling, c);
+}
+
+static void
+test_mu_container_splice_children_when_parent_has_no_siblings(void)
+{
+	MuContainer *child, *parent, *root_set;
+
+	child  = mu_container_new(NULL, 0, "child");
+	parent = mu_container_new(NULL, 0, "parent");
+	parent = mu_container_append_children(parent, child);
+
+	root_set = parent;
+	root_set = mu_container_splice_children(root_set, parent);
+
+	g_assert(root_set != NULL);
+	g_assert(!container_has_children(parent));
+	g_assert(container_is_sibling_of(root_set, child));
+
+	mu_container_destroy(parent);
+	mu_container_destroy(child);
+}
+
+int
+main(int argc, char* argv[])
+{
+	g_test_init(&argc, &argv, NULL);
+
+	g_test_add_func("/mu-container/mu-container-splice-children-when-parent-has-no-siblings",
+	                test_mu_container_splice_children_when_parent_has_no_siblings);
+
+	g_log_set_handler(
+	    NULL,
+	    (GLogLevelFlags)(G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL | G_LOG_FLAG_RECURSION),
+	    (GLogFunc)black_hole,
+	    NULL);
+
+	return g_test_run();
+}