1 files changed, 9 insertions, 0 deletions
diff --git a/tests/common/test_contracts.c b/tests/common/test_contracts.c
index ac0065c..ee6fe61 100644
--- a/tests/common/test_contracts.c
+++ b/tests/common/test_contracts.c
@@ -25,6 +25,14 @@ static void test_timing_clock(void)
     assert(stats.max_us == 500.0);
 }
 
+static void test_surface_state(void)
+{
+    /* Reading reported flags does not require a backend query or display. */
+    struct yasl_surface surface = {.state = YASL_STATE_FULLSCREEN | YASL_STATE_ACTIVATED};
+    assert(!yasl_surface_state(NULL));
+    assert(yasl_surface_state(&surface) == (YASL_STATE_FULLSCREEN | YASL_STATE_ACTIVATED));
+}
+
 static void test_queue(void)
 {
     struct input_queue q = {0};
@@ -326,6 +334,7 @@ static void test_errors(void)
 int main(void)
 {
     test_timing_clock();
+    test_surface_state();
     test_queue();
     test_validation();
     test_native();