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-rw-r--r--test/dm/test-fdt.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/test/dm/test-fdt.c b/test/dm/test-fdt.c
index 984b80c02c..be16c99e17 100644
--- a/test/dm/test-fdt.c
+++ b/test/dm/test-fdt.c
@@ -219,6 +219,29 @@ static int dm_test_fdt(struct unit_test_state *uts)
}
DM_TEST(dm_test_fdt, 0);
+static int dm_test_alias_highest_id(struct unit_test_state *uts)
+{
+ int ret;
+
+ ret = dev_read_alias_highest_id("eth");
+ ut_asserteq(5, ret);
+
+ ret = dev_read_alias_highest_id("gpio");
+ ut_asserteq(2, ret);
+
+ ret = dev_read_alias_highest_id("pci");
+ ut_asserteq(2, ret);
+
+ ret = dev_read_alias_highest_id("i2c");
+ ut_asserteq(0, ret);
+
+ ret = dev_read_alias_highest_id("deadbeef");
+ ut_asserteq(-1, ret);
+
+ return 0;
+}
+DM_TEST(dm_test_alias_highest_id, 0);
+
static int dm_test_fdt_pre_reloc(struct unit_test_state *uts)
{
struct uclass *uc;