Add tests for OID parsing from string

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/tests/suites/test_suite_oid.data b/tests/suites/test_suite_oid.data
index b9fa654..9e47ef4 100644
--- a/tests/suites/test_suite_oid.data
+++ b/tests/suites/test_suite_oid.data
@@ -119,3 +119,15 @@
 
 OID get numeric string - overlong encoding, second subidentifier
 oid_get_numeric_string:"2B8001":MBEDTLS_ERR_ASN1_INVALID_DATA:""
+
+OID from numeric string - hardware module name
+oid_from_numeric_string:"1.3.6.1.5.5.7.8.4":0:"2B06010505070804"
+
+OID from numeric string - multi-byte subidentifier
+oid_from_numeric_string:"1.1.2108":0:"29903C"
+
+OID from numeric string - second component greater than 39
+oid_from_numeric_string:"2.49.0.0.826.0":0:"81010000863A00"
+
+OID from numeric string - multi-byte first subidentifier
+oid_from_numeric_string:"2.999":0:"8837"