diff --git a/tests/lib/devicetree/devices/src/main.c b/tests/lib/devicetree/devices/src/main.c
index d90b3d38175..b0e086e5a7c 100644
--- a/tests/lib/devicetree/devices/src/main.c
+++ b/tests/lib/devicetree/devices/src/main.c
@@ -51,27 +51,58 @@ DEVICE_DT_DEFINE(TEST_PARTITION, dev_init, NULL,
 /* Device with both an existing and missing injected dependency */
 DEVICE_DT_DEFINE(TEST_GPIO_INJECTED, dev_init, NULL,
 		 NULL, NULL, POST_KERNEL, 70, NULL, DT_DEP_ORD(TEST_DEVB), 999);
+/* Manually specified device */
+DEVICE_DEFINE(manual_dev, "Manual Device", dev_init, NULL,
+		 NULL, NULL, POST_KERNEL, 80, NULL);
 
 #define DEV_HDL(node_id) device_handle_get(DEVICE_DT_GET(node_id))
+#define DEV_HDL_NAME(name) device_handle_get(DEVICE_GET(name))
+
+static void test_init_get(void)
+{
+	/* Check device pointers */
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_GPIO)->dev,
+		      DEVICE_DT_GET(TEST_GPIO), NULL);
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_I2C)->dev,
+		      DEVICE_DT_GET(TEST_I2C), NULL);
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_DEVA)->dev,
+		      DEVICE_DT_GET(TEST_DEVA), NULL);
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_DEVB)->dev,
+		      DEVICE_DT_GET(TEST_DEVB), NULL);
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_GPIOX)->dev,
+		      DEVICE_DT_GET(TEST_GPIOX), NULL);
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_DEVC)->dev,
+		      DEVICE_DT_GET(TEST_DEVC), NULL);
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_PARTITION)->dev,
+		      DEVICE_DT_GET(TEST_PARTITION), NULL);
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_GPIO_INJECTED)->dev,
+		      DEVICE_DT_GET(TEST_GPIO_INJECTED), NULL);
+	zassert_equal(DEVICE_INIT_GET(manual_dev)->dev,
+		      DEVICE_GET(manual_dev), NULL);
+
+	/* Check init functions */
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_GPIO)->init, dev_init, NULL);
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_I2C)->init, dev_init, NULL);
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_DEVA)->init, dev_init, NULL);
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_DEVB)->init, dev_init, NULL);
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_GPIOX)->init, dev_init, NULL);
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_DEVC)->init, dev_init, NULL);
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_PARTITION)->init, dev_init, NULL);
+	zassert_equal(DEVICE_INIT_DT_GET(TEST_GPIO_INJECTED)->init, dev_init, NULL);
+	zassert_equal(DEVICE_INIT_GET(manual_dev)->init, dev_init, NULL);
+}
 
 static void test_init_order(void)
 {
-	zassert_equal(init_order[0], DEV_HDL(TEST_GPIO),
-		      NULL);
-	zassert_equal(init_order[1], DEV_HDL(TEST_I2C),
-		      NULL);
-	zassert_equal(init_order[2], DEV_HDL(TEST_DEVA),
-		      NULL);
-	zassert_equal(init_order[3], DEV_HDL(TEST_DEVB),
-		      NULL);
-	zassert_equal(init_order[4], DEV_HDL(TEST_GPIOX),
-		      NULL);
-	zassert_equal(init_order[5], DEV_HDL(TEST_DEVC),
-		      NULL);
-	zassert_equal(init_order[6], DEV_HDL(TEST_PARTITION),
-		      NULL);
-	zassert_equal(init_order[7], DEV_HDL(TEST_GPIO_INJECTED),
-		      NULL);
+	zassert_equal(init_order[0], DEV_HDL(TEST_GPIO), NULL);
+	zassert_equal(init_order[1], DEV_HDL(TEST_I2C), NULL);
+	zassert_equal(init_order[2], DEV_HDL(TEST_DEVA), NULL);
+	zassert_equal(init_order[3], DEV_HDL(TEST_DEVB), NULL);
+	zassert_equal(init_order[4], DEV_HDL(TEST_GPIOX), NULL);
+	zassert_equal(init_order[5], DEV_HDL(TEST_DEVC), NULL);
+	zassert_equal(init_order[6], DEV_HDL(TEST_PARTITION), NULL);
+	zassert_equal(init_order[7], DEV_HDL(TEST_GPIO_INJECTED), NULL);
+	zassert_equal(init_order[8], DEV_HDL_NAME(manual_dev), NULL);
 }
 
 static bool check_handle(device_handle_t hdl,
@@ -297,6 +328,7 @@ void test_main(void)
 	devlist_end = devlist + ndevs;
 
 	ztest_test_suite(devicetree_driver,
+			 ztest_unit_test(test_init_get),
 			 ztest_unit_test(test_init_order),
 			 ztest_unit_test(test_requires),
 			 ztest_unit_test(test_injected),