Add tests for asn1_write_ia5_string()
diff --git a/tests/suites/test_suite_asn1write.data b/tests/suites/test_suite_asn1write.data
index c9b20d7..17f2067 100644
--- a/tests/suites/test_suite_asn1write.data
+++ b/tests/suites/test_suite_asn1write.data
@@ -30,3 +30,21 @@
ASN.1 Write Octet String #9 (l = 128, buffer too small for string)
asn1_write_octet_string:"000102030405060708090A0B0C0D0E0F000102030405060708090A0B0C0D0E0F000102030405060708090A0B0C0D0E0F000102030405060708090A0B0C0D0E0F000102030405060708090A0B0C0D0E0F000102030405060708090A0B0C0D0E0F000102030405060708090A0B0C0D0E0F000102030405060708090A0B0C0D0E0F":"":127:POLARSSL_ERR_ASN1_BUF_TOO_SMALL
+
+ASN.1 Write IA5 String #0 (Empty string)
+asn1_write_ia5_string:"":"1600":2:2
+
+ASN.1 Write IA5 String #1 (Large buffer)
+asn1_write_ia5_string:"ABC":"1603414243":10:5
+
+ASN.1 Write IA5 String #2 (Buffer just fits)
+asn1_write_ia5_string:"ABC":"1603414243":5:5
+
+ASN.1 Write IA5 String #3 (Buffer too small for tag)
+asn1_write_ia5_string:"ABC":"":4:POLARSSL_ERR_ASN1_BUF_TOO_SMALL
+
+ASN.1 Write IA5 String #4 (Buffer too small for len)
+asn1_write_ia5_string:"ABC":"":3:POLARSSL_ERR_ASN1_BUF_TOO_SMALL
+
+ASN.1 Write IA5 String #5 (Buffer too small for string)
+asn1_write_ia5_string:"ABC":"":2:POLARSSL_ERR_ASN1_BUF_TOO_SMALL