--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-script.c	Mon Jan 27 12:24:20 2020 +0100
@@ -0,0 +1,185 @@
+/*
+ * test-script.c -- test script action
+ *
+ * Copyright (c) 2020 David Demelier <markand@malikania.fr>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <greatest.h>
+
+#include <script.h>
+
+static bool
+truth(struct action *a, unsigned int ticks)
+{
+	(void)a;
+	(void)ticks;
+
+	return true;
+}
+
+static bool
+nope(struct action *a, unsigned int ticks)
+{
+	(void)a;
+	(void)ticks;
+
+	return false;
+}
+
+TEST
+append(void)
+{
+	int ref1 = 0, ref2 = 0;
+	struct script sc;
+
+	script_init(&sc);
+
+	/* ref1 */
+	script_append(&sc, &(struct action) {
+		.update = truth,
+		.data = &ref1
+	});
+
+	ASSERT(sc.head);
+	ASSERT_EQ(sc.head->action.data, &ref1);
+
+	/* ref2 */
+	script_append(&sc, &(struct action) {
+		.update = truth,
+		.data = &ref2
+	});
+
+	ASSERT(sc.head);
+	ASSERT_EQ(sc.head->action.data, &ref1);
+	ASSERT_EQ(sc.head->next->action.data, &ref2);
+
+	script_finish(&sc);
+
+	PASS();
+}
+
+TEST
+finish(void)
+{
+	struct script sc;
+
+	script_init(&sc);
+	script_append(&sc, &(struct action) {
+		.update = truth,
+	});
+	script_append(&sc, &(struct action) {
+		.update = truth,
+	});
+	script_finish(&sc);
+
+	ASSERT(!sc.head);
+	PASS();
+}
+
+SUITE(manipulation)
+{
+	RUN_TEST(append);
+	RUN_TEST(finish);
+}
+
+TEST
+advance(void)
+{
+	int ref1 = 0, ref2 = 0;
+	struct script sc;
+
+	script_init(&sc);
+
+	script_append(&sc, &(struct action) {
+		.update = truth,
+		.data = &ref1
+	});
+	script_append(&sc, &(struct action) {
+		.update = truth,
+		.data = &ref2
+	});
+
+	/* Start -> 1 */
+	script_start(&sc);
+
+	ASSERT(sc.iter);
+	ASSERT_EQ(sc.iter->action.data, &ref1);
+
+	/* Update -> 2 */
+	script_update(&sc, 0);
+
+	ASSERT(sc.iter);
+	ASSERT_EQ(sc.iter->action.data, &ref2);
+
+	/* Update -> end */
+	script_update(&sc, 0);
+
+	ASSERT(!sc.iter);
+
+	script_finish(&sc);
+
+	PASS();
+}
+
+TEST
+dont_advance(void)
+{
+	int ref1 = 0, ref2 = 0;
+	struct script sc;
+
+	script_init(&sc);
+
+	script_append(&sc, &(struct action) {
+		.update = nope,
+		.data = &ref1
+	});
+	script_append(&sc, &(struct action) {
+		.update = truth,
+		.data = &ref2
+	});
+
+	/* Start -> 1 */
+	script_start(&sc);
+
+	ASSERT(sc.iter);
+	ASSERT_EQ(sc.iter->action.data, &ref1);
+
+	/* Update -> 1 */
+	script_update(&sc, 0);
+
+	ASSERT(sc.iter);
+	ASSERT_EQ(sc.iter->action.data, &ref1);
+
+	script_finish(&sc);
+
+	PASS();
+}
+
+SUITE(usage)
+{
+	RUN_TEST(advance);
+	RUN_TEST(dont_advance);
+}
+
+GREATEST_MAIN_DEFS();
+
+int
+main(int argc, char **argv)
+{
+	GREATEST_MAIN_BEGIN();
+	RUN_SUITE(manipulation);
+	RUN_SUITE(usage);
+	GREATEST_MAIN_END();
+}