diff --git a/test/dm/irq.c b/test/dm/irq.c
index 836f2d8..ca3e188 100644
--- a/test/dm/irq.c
+++ b/test/dm/irq.c
@@ -76,6 +76,21 @@
 }
 DM_TEST(dm_test_request, UTF_SCAN_PDATA | UTF_SCAN_FDT);
 
+/* Test of irq_get_by_index() */
+static int dm_test_irq_get_by_index(struct unit_test_state *uts)
+{
+	struct udevice *dev;
+	struct irq irq;
+
+	ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "f-test",
+					      &dev));
+	ut_assertok(irq_get_by_index(dev, 0, &irq));
+	ut_asserteq(4, irq.id);
+
+	return 0;
+}
+DM_TEST(dm_test_irq_get_by_index, UTF_SCAN_PDATA | UTF_SCAN_FDT);
+
 /* Test of irq_get_acpi() */
 static int dm_test_irq_get_acpi(struct unit_test_state *uts)
 {