Refactor how net/data/verify_certificate_chain_unittest/*

net/data/verify_certificate_chain_unittest/expired-target-notBefore/generate-chains.py

Index: net/data/verify_certificate_chain_unittest/expired-target-notBefore/generate-chains.py
diff --git a/net/data/verify_certificate_chain_unittest/generate-expired-target-notBefore.py b/net/data/verify_certificate_chain_unittest/expired-target-notBefore/generate-chains.py
similarity index 72%
rename from net/data/verify_certificate_chain_unittest/generate-expired-target-notBefore.py
rename to net/data/verify_certificate_chain_unittest/expired-target-notBefore/generate-chains.py
index a04f2f4ce76717844b79c45480b4f7c27c19b86e..1021c8d13a824b70d2eaf18fb9ed35985dce01e9 100755
--- a/net/data/verify_certificate_chain_unittest/generate-expired-target-notBefore.py
+++ b/net/data/verify_certificate_chain_unittest/expired-target-notBefore/generate-chains.py
@@ -6,6 +6,9 @@
 """Certificate chain with 1 intermediate, where the target is expired (violates
 validity.notBefore). Verification is expected to fail."""
 
+import sys
+sys.path += ['..']
+
 import common
 
 # Self-signed root certificate (used as trust anchor).
@@ -21,18 +24,9 @@ intermediate.set_validity_range(common.JANUARY_1_2015_UTC,
 target = common.create_end_entity_certificate('Target', intermediate)
 target.set_validity_range(common.MARCH_2_2015_UTC, common.JANUARY_1_2016_UTC)
 
-chain = [target, intermediate]
-trusted = common.TrustAnchor(root, constrained=False)
 
 # Both the root and intermediate are valid at this time, however the
 # target is not.
-time = common.MARCH_1_2015_UTC
-key_purpose = common.DEFAULT_KEY_PURPOSE
-verify_result = False
-errors = """----- Certificate i=0 (CN=Target) -----
-ERROR: Time is before notBefore
-
-"""
 
-common.write_test_file(__doc__, chain, trusted, time, key_purpose,
-                       verify_result, errors)
+chain = [target, intermediate, root]
+common.write_chain(__doc__, chain, 'chain.pem')