Refactor how net/data/verify_certificate_chain_unittest/*

net/data/verify_certificate_chain_unittest/target-wrong-signature/generate-chains.py

Index: net/data/verify_certificate_chain_unittest/target-wrong-signature/generate-chains.py
diff --git a/net/data/verify_certificate_chain_unittest/generate-target-wrong-signature.py b/net/data/verify_certificate_chain_unittest/target-wrong-signature/generate-chains.py
similarity index 72%
rename from net/data/verify_certificate_chain_unittest/generate-target-wrong-signature.py
rename to net/data/verify_certificate_chain_unittest/target-wrong-signature/generate-chains.py
index b803a39ff672093e0bec4757bcacba9464de1afb..55c7e16ed32d11725f32e89e38ceed6fffe83124 100755
--- a/net/data/verify_certificate_chain_unittest/generate-target-wrong-signature.py
+++ b/net/data/verify_certificate_chain_unittest/target-wrong-signature/generate-chains.py
@@ -7,6 +7,9 @@
 else should check out, however the digital signature contained in the target
 certificate is wrong."""
 
+import sys
+sys.path += ['..']
+
 import common
 
 # Self-signed root certificate (used as trust anchor).
@@ -24,16 +27,5 @@ wrong_intermediate = common.create_intermediate_certificate('Intermediate',
 # Target certificate, signed using |wrong_intermediate| NOT |intermediate|.
 target = common.create_end_entity_certificate('Target', wrong_intermediate)
 
-chain = [target, intermediate]
-trusted = common.TrustAnchor(root, constrained=False)
-time = common.DEFAULT_TIME
-key_purpose = common.DEFAULT_KEY_PURPOSE
-verify_result = False
-errors = """----- Certificate i=0 (CN=Target) -----
-ERROR: Signature verification failed
-ERROR: VerifySignedData failed
-
-"""
-
-common.write_test_file(__doc__, chain, trusted, time, key_purpose,
-                       verify_result, errors)
+chain = [target, intermediate, root]
+common.write_chain(__doc__, chain, 'chain.pem')