Remove WrongMessageTest

Merge from Widevine repo of http://go/wvgerrit/48841

This test is not providing value to the CDM, as it seems to exist
primarily to validate server behavior. However, it is not doing what
it says it is (the request is rejected because it is using unparseable
garbage data, not because its key ID is unknown) and according to
tinskip@, the behavior it claims to be testing is not valid. (The
licensing service will not fail just because the key ID is unknown.
Indeed, if the test data is fixed to use a valid payload with an
unknown key ID, the test fails because the server does not.)

Bug: 78640287
Test: CE CDM Unit Tests
Test: Android Unit Tests
Test: tested as part of http://go/ag/4674759

Change-Id: Idfcff15ab3d15fdfb6eb111b5dff68aa5a23fb37

libwvdrmengine/cdm/core/test/cdm_engine_test.cpp

@@ -48,7 +48,6 @@ std::string g_license_server;
 std::string g_provisioning_server;
 std::string g_provisioning_service_certificate;
 std::string g_license_service_certificate;
-KeyId g_wrong_key_id;
 
 const std::string kCencMimeType = "video/mp4";
 const std::string kWebmMimeType = "video/webm";
@@ -64,7 +63,6 @@ static void CommonSetup(ServerConfigurationId which,
 
   g_client_auth.assign(config.client_auth());
   g_key_system.assign(config.key_system());
-  g_wrong_key_id.assign(config.wrong_key_id());
   g_license_server.assign(config.license_server());
   g_key_id_pssh.assign(a2bs_hex(config.key_id()));
   g_provisioning_service_certificate.assign(
@@ -571,15 +569,6 @@ TEST_F(WvCdmEngineTest, DISABLED_BaseWebmMessageTest) {
   GetKeyRequestResponse(g_license_server, g_client_auth);
 }
 
-TEST_F(WvCdmEngineTest, WrongMessageTest) {
-  std::string wrong_message = a2bs_hex(g_wrong_key_id);
-  GenerateKeyRequest(wrong_message, kCencMimeType);
-
-  // We should receive a response with no license, i.e. the extracted license
-  // response message should be empty.
-  ASSERT_EQ("", FailToGetKeyRequestResponse(g_license_server, g_client_auth));
-}
-
 TEST_F(WvCdmEngineTest, NormalDecryptionIsoBmff) {
   GenerateKeyRequest(g_key_id_pssh, kCencMimeType);
   VerifyNewKeyResponse(g_license_server, g_client_auth);

libwvdrmengine/cdm/core/test/config_test_env.cpp

@@ -257,17 +257,6 @@ const std::string kGpClientOfflineRenewalQueryParameters =
 const std::string kGpClientOfflineReleaseQueryParameters =
     "&offline=true&release=true";
 
-// An invalid key id, expected to fail
-const std::string kWrongKeyId =
-    "00000034"                          // blob size
-    "70737368"                          // "pssh"
-    "00000000"                          // flags
-    "edef8ba979d64acea3c827dcd51d21ed"  // Widevine system id
-    "00000014"                          // pssh data size
-    // pssh data:
-    "0901121094889920e8d6520098577df8"
-    "f2dd5546";
-
 const ConfigTestEnv::LicenseServerConfiguration license_servers[] = {
     {kGooglePlayServer, kGpLicenseServer, "", kGpClientAuth, kGpKeyId,
      kGpOfflineKeyId, kCpProductionProvisioningServerUrl, ""},
@@ -324,7 +313,6 @@ void ConfigTestEnv::Init(ServerConfigurationId server_id) {
       a2bs_hex(license_servers[server_id].license_service_certificate);
   provisioning_service_certificate_ =
       a2bs_hex(license_servers[server_id].provisioning_service_certificate);
-  wrong_key_id_ = kWrongKeyId;
 }
 
 const CdmInitData ConfigTestEnv::GetInitData(ContentId content_id) {

libwvdrmengine/cdm/core/test/config_test_env.h

@@ -76,7 +76,6 @@ class ConfigTestEnv {
   const std::string& provisioning_service_certificate() const {
     return provisioning_service_certificate_;
   }
-  const KeyId& wrong_key_id() const { return wrong_key_id_; }
 
   static const CdmInitData GetInitData(ContentId content_id);
   static const std::string& GetLicenseServerUrl(
@@ -103,7 +102,6 @@ class ConfigTestEnv {
   std::string provisioning_server_;
   std::string license_service_certificate_;
   std::string provisioning_service_certificate_;
-  KeyId wrong_key_id_;
 
   CORE_DISALLOW_COPY_AND_ASSIGN(ConfigTestEnv);
 };