diff --git a/test.sh b/test.sh
index 13138c8..972579b 100755
--- a/test.sh
+++ b/test.sh
@@ -134,6 +134,17 @@ test_read_sleep() {
     assert_equals "$((result+1))" "$SECONDS"
 }
 
+test_braces_expansion() {
+    printf -v result %s {a,{q,x}}c
+    assert_equals "$result" "acqcxc"
+}
+
+test_numeric_sequence() {
+    printf -v result '%s ' {1..10}
+    assert_equals "$result" "1 2 3 4 5 6 7 8 9 10 "
+}
+
+
 test_bar() {
     result="$(bar 50 10)"
     assert_equals "${result//$'\r'}" "[-----     ]"