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Backwards Compatibility Tests

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Merge from Widevine repo of http://go/wvgerrit/24241

The CL also only modifies existing tests so that they will pass
with an old version of OEMCrypto, or it filters out the tests so
that they do not run.  This positions us so that we can more
easily verify how much backwards compatibility we expect to work.

bug: 35877886

Change-Id: Iadc06672d7f9cef75800662ff83389c504a3fd04
This commit is contained in:
Fred Gylys-Colwell
2017-03-01 13:31:46 -08:00
parent a4506542df
commit 70ffdb1c6a
4 changed files with 90 additions and 65 deletions
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5
libwvdrmengine/oemcrypto/test/oec_device_features.cpp
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@@ -71,7 +71,9 @@ void DeviceFeatures::Initialize(bool is_cast_receiver,
OEMCrypto_CloseSession(session);
api_version = OEMCrypto_APIVersion();
printf("api_version = %d.\n", api_version);
usage_table = OEMCrypto_SupportsUsageTable();
// These unit tests only work with new usage tables. We do not test v12
// usage tables.
if (api_version > 12) usage_table = OEMCrypto_SupportsUsageTable();
printf("usage_table = %s.\n", usage_table ? "true" : "false");
if (force_load_test_keybox) {
derive_key_method = FORCE_TEST_KEYBOX;
@@ -131,6 +133,7 @@ std::string DeviceFeatures::RestrictFilter(const std::string& initial_filter) {
if (provisioning_method
!= OEMCrypto_OEMCertificate) FilterOut(&filter, "*Prov30*");
if (!supports_rsa_3072) FilterOut(&filter, "*RSAKey3072*");
if (api_version < 9) FilterOut(&filter, "*API09*");
if (api_version < 10) FilterOut(&filter, "*API10*");
if (api_version < 11) FilterOut(&filter, "*API11*");
if (api_version < 12) FilterOut(&filter, "*API12*");