UPSTREAM: unit/test-uuid: Fix using strcmp

It is no longer guaranteed the string will match since bt_uuid_to_string
now always uses 128 Bits format to be consistent with the format used
over D-Bus.

(cherry picked from commit 1f2e03bc5262e412e822dec7c17a783c487c18cb)

BUG=chrome-os-partner:48794
TEST=manually

Change-Id: Iaf63c4cbc44b5d4994f4b50539d889310d89df18
Reviewed-on: https://chromium-review.googlesource.com/325184
Commit-Ready: Wei-Ning Huang <wnhuang@chromium.org>
Tested-by: Wei-Ning Huang <wnhuang@chromium.org>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Miao-chen Chou <mcchou@chromium.org>
diff --git a/unit/test-uuid.c b/unit/test-uuid.c
index 5f45b0c..7c6789e 100644
--- a/unit/test-uuid.c
+++ b/unit/test-uuid.c
@@ -151,7 +151,7 @@
 	g_assert(bt_string_to_uuid(&uuid, test_data->str) == 0);
 
 	bt_uuid_to_string(&uuid, buf, sizeof(buf));
-	g_assert(strcasecmp(buf, str) == 0);
+	g_assert(bt_uuid_strcmp(buf, str) == 0);
 
 	switch (test_data->type) {
 	case BT_UUID16:
@@ -166,7 +166,7 @@
 	}
 
 	bt_uuid_to_string(&uuid, buf, sizeof(buf));
-	g_assert(strcasecmp(buf, str) == 0);
+	g_assert(bt_uuid_strcmp(buf, str) == 0);
 	tester_test_passed();
 }