Add tests for (named) bitstring to suite_asn1write
diff --git a/tests/data_files/server1.req.key_usage b/tests/data_files/server1.req.key_usage
index 053aed9..5df41e1 100644
--- a/tests/data_files/server1.req.key_usage
+++ b/tests/data_files/server1.req.key_usage
@@ -7,11 +7,11 @@
 W+cTl4W1I5LZ1CQG1QkliXUH3aYajz8JGb6tZSxk65Wb3P5BXhem2mxbacwCuhQs
 FiScStzN0PdSZ3PxLaAj/X70McotcMqJCwTbLqZPcG6ezr1YieJTWZ5uWpJl4og/
 DJQZo93l6J2VE+0p26twEtxaymsXq1KCVLECAwEAAaAeMBwGCSqGSIb3DQEJDjEP
-MA0wCwYDVR0PBAQDAgHgMA0GCSqGSIb3DQEBBQUAA4IBAQCj6jCu0wE5OQ1JGQwZ
-FNwPqZrvKntSq2yLIbgmGxwlvDLxOzn0KmidSFiKRqh0KXwj9siodlz5C0d9tUqq
-7xUXg+j+wDHqUV8zo42Jke+UmWXFPpnXx/fDFGTITdLSn8ZDxkt31ESLTEVZvPFD
-odm+C+zWJtKpyL+9op4KvyBQ1MZ9nWZpwMaK4g4mdtOIsz75gMa74w8ZT7VzhGMY
-cZGmafsl7x++GDDtf0oCPgrj9xy+Ovv/GyUBaB+6lweflTfPDTRSoN0meFlP5ynF
-vqcBM5JKH2FUQIizfc9o6Z8tKxe9FCov3x8szAuoMRA7bjhVngeQIrEkTcaQBvBY
-NalC
+MA0wCwYDVR0PBAQDAgXgMA0GCSqGSIb3DQEBBQUAA4IBAQCn0RjrgOyNn5ZQ9Hfn
+zhN5q7EAMBYdKBQayeJQQkmreqTdzG/rCHZtt3bIZ/8SWIPNiIOkvsnsGzdBLp8B
+zAAwINhcDIQtIQVObgTLZmvC1syjXfjdH02mYKAccP9OxlnWIVivSPRp9jr9IwYO
+cnT6pzGvP/RWoQen+DougM2WwiZ8YJTrtoe8DlzDq+hbTgoGeQuEGhOnxMlkiLzs
++g6yoi/1F3nsUwJI+QhBxG7Xf74gCCHZckCtSs2MBEavhcPu7o9QjuWR0YFRTaCf
+5uBL7/gNIVmrWnsQLcH1+DexxzW7lPBN1iFXUXNcweoo0fX3ykkvBYdKKicF7bM1
+zZzQ
 -----END CERTIFICATE REQUEST-----