Refactor how net/data/verify_certificate_chain_unittest/*

net/data/verify_certificate_chain_unittest/expired-constrained-root/generate-chains.py

Index: net/data/verify_certificate_chain_unittest/expired-constrained-root/generate-chains.py
diff --git a/net/data/verify_certificate_chain_unittest/generate-expired-constrained-root.py b/net/data/verify_certificate_chain_unittest/expired-constrained-root/generate-chains.py
similarity index 78%
rename from net/data/verify_certificate_chain_unittest/generate-expired-constrained-root.py
rename to net/data/verify_certificate_chain_unittest/expired-constrained-root/generate-chains.py
index e62caa9f13e6edac735732a904f8f8941e8ab54e..34334ba125b70f7bb97e983f431d6da646edcca1 100755
--- a/net/data/verify_certificate_chain_unittest/generate-expired-constrained-root.py
+++ b/net/data/verify_certificate_chain_unittest/expired-constrained-root/generate-chains.py
@@ -8,6 +8,9 @@
 the trust anchor is initialized with anchor constraints, since validity is
 not enforced."""
 
+import sys
+sys.path += ['..']
+
 import common
 
 # Self-signed root certificate (used as trust anchor).
@@ -23,15 +26,9 @@ intermediate.set_validity_range(common.JANUARY_1_2015_UTC,
 target = common.create_end_entity_certificate('Target', intermediate)
 target.set_validity_range(common.JANUARY_1_2015_UTC, common.JANUARY_1_2016_UTC)
 
-chain = [target, intermediate]
-trusted = common.TrustAnchor(root, constrained=True)
 
 # Both the target and intermediate are valid at this time, however the
 # root is not.
-time = common.MARCH_2_2015_UTC
-key_purpose = common.DEFAULT_KEY_PURPOSE
-verify_result = True
-errors = None
 
-common.write_test_file(__doc__, chain, trusted, time, key_purpose,
-                       verify_result, errors)
+chain = [target, intermediate, root]
+common.write_chain(__doc__, chain, 'chain.pem')