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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/modules/webcodecs/decrypt_config_util.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_encryption_pattern.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_subsample_entry.h"
#include "third_party/blink/renderer/modules/webcodecs/test_helpers.h"
#include "third_party/blink/renderer/platform/testing/task_environment.h"
namespace blink {
namespace {
TEST(DecryptConfigUtilTest, BadScheme) {
test::TaskEnvironment task_environment;
auto* js_config = MakeGarbageCollected<DecryptConfig>();
js_config->setEncryptionScheme("test");
EXPECT_EQ(nullptr, CreateMediaDecryptConfig(*js_config));
}
TEST(DecryptConfigUtilTest, WrongIVSize) {
test::TaskEnvironment task_environment;
auto* js_config = MakeGarbageCollected<DecryptConfig>();
js_config->setEncryptionScheme("cenc");
js_config->setInitializationVector(StringToBuffer("1234567890"));
EXPECT_EQ(nullptr, CreateMediaDecryptConfig(*js_config));
}
TEST(DecryptConfigUtilTest, CreateCbcsWithoutPattern) {
test::TaskEnvironment task_environment;
auto expected_media_config =
CreateTestDecryptConfig(media::EncryptionScheme::kCbcs);
auto* js_config = MakeGarbageCollected<DecryptConfig>();
js_config->setEncryptionScheme("cbcs");
js_config->setKeyId(StringToBuffer(expected_media_config->key_id()));
js_config->setInitializationVector(
StringToBuffer(expected_media_config->iv()));
HeapVector<Member<SubsampleEntry>> subsamples;
for (const auto& entry : expected_media_config->subsamples()) {
auto* js_entry = MakeGarbageCollected<SubsampleEntry>();
js_entry->setClearBytes(entry.clear_bytes);
js_entry->setCypherBytes(entry.cypher_bytes);
subsamples.push_back(js_entry);
}
js_config->setSubsampleLayout(subsamples);
auto created_media_config = CreateMediaDecryptConfig(*js_config);
ASSERT_NE(nullptr, created_media_config);
EXPECT_TRUE(expected_media_config->Matches(*created_media_config));
}
TEST(DecryptConfigUtilTest, CreateCbcsWithPattern) {
test::TaskEnvironment task_environment;
const media::EncryptionPattern kPattern(1, 2);
auto expected_media_config =
CreateTestDecryptConfig(media::EncryptionScheme::kCbcs, kPattern);
auto* js_config = MakeGarbageCollected<DecryptConfig>();
js_config->setEncryptionScheme("cbcs");
js_config->setKeyId(StringToBuffer(expected_media_config->key_id()));
js_config->setInitializationVector(
StringToBuffer(expected_media_config->iv()));
HeapVector<Member<SubsampleEntry>> subsamples;
for (const auto& entry : expected_media_config->subsamples()) {
auto* js_entry = MakeGarbageCollected<SubsampleEntry>();
js_entry->setClearBytes(entry.clear_bytes);
js_entry->setCypherBytes(entry.cypher_bytes);
subsamples.push_back(js_entry);
}
js_config->setSubsampleLayout(subsamples);
auto* pattern = MakeGarbageCollected<EncryptionPattern>();
pattern->setCryptByteBlock(
expected_media_config->encryption_pattern()->crypt_byte_block());
pattern->setSkipByteBlock(
expected_media_config->encryption_pattern()->skip_byte_block());
js_config->setEncryptionPattern(pattern);
auto created_media_config = CreateMediaDecryptConfig(*js_config);
ASSERT_NE(nullptr, created_media_config);
EXPECT_TRUE(expected_media_config->Matches(*created_media_config));
}
TEST(DecryptConfigUtilTest, CreateCenc) {
test::TaskEnvironment task_environment;
auto expected_media_config =
CreateTestDecryptConfig(media::EncryptionScheme::kCenc);
auto* js_config = MakeGarbageCollected<DecryptConfig>();
js_config->setEncryptionScheme("cenc");
js_config->setKeyId(StringToBuffer(expected_media_config->key_id()));
js_config->setInitializationVector(
StringToBuffer(expected_media_config->iv()));
HeapVector<Member<SubsampleEntry>> subsamples;
for (const auto& entry : expected_media_config->subsamples()) {
auto* js_entry = MakeGarbageCollected<SubsampleEntry>();
js_entry->setClearBytes(entry.clear_bytes);
js_entry->setCypherBytes(entry.cypher_bytes);
subsamples.push_back(js_entry);
}
js_config->setSubsampleLayout(subsamples);
auto created_media_config = CreateMediaDecryptConfig(*js_config);
ASSERT_NE(nullptr, created_media_config);
EXPECT_TRUE(expected_media_config->Matches(*created_media_config));
}
} // namespace
} // namespace blink
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