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// Copyright 2020 The Pigweed Authors
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
#include "gtest/gtest.h"
#include "pw_kvs/crc16_checksum.h"
#include "pw_kvs/fake_flash_memory.h"
#include "pw_kvs/flash_partition_with_stats.h"
#include "pw_kvs/key_value_store.h"
namespace pw::kvs {
namespace {
using std::byte;
#ifndef PW_KVS_FUZZ_ITERATIONS
#define PW_KVS_FUZZ_ITERATIONS 2
#endif // PW_KVS_FUZZ_ITERATIONS
constexpr int kFuzzIterations = PW_KVS_FUZZ_ITERATIONS;
constexpr size_t kMaxEntries = 256;
constexpr size_t kMaxUsableSectors = 256;
// 4 x 4k sectors, 16 byte alignment
FakeFlashMemoryBuffer<4 * 1024, 6> test_flash(16);
FlashPartitionWithStatsBuffer<kMaxUsableSectors> test_partition(
&test_flash, 0, test_flash.sector_count());
ChecksumCrc16 checksum;
class EmptyInitializedKvs : public ::testing::Test {
protected:
// For KVS magic value always use a random 32 bit integer rather than a
// human readable 4 bytes. See pw_kvs/format.h for more information.
EmptyInitializedKvs()
: kvs_(&test_partition, {.magic = 0x873a9b50, .checksum = &checksum}) {
test_partition.Erase(0, test_partition.sector_count());
ASSERT_EQ(OkStatus(), kvs_.Init());
}
KeyValueStoreBuffer<kMaxEntries, kMaxUsableSectors> kvs_;
};
TEST_F(EmptyInitializedKvs, Put_VaryingKeysAndValues) {
char value[] =
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" // 52
"34567890123"; // 64 (with final \0);
static_assert(sizeof(value) == 64);
test_partition.ResetCounters();
for (int i = 0; i < kFuzzIterations; ++i) {
for (unsigned key_size = 1; key_size < sizeof(value); ++key_size) {
for (unsigned value_size = 0; value_size < sizeof(value); ++value_size) {
ASSERT_EQ(OkStatus(),
kvs_.Put(std::string_view(value, key_size),
std::as_bytes(std::span(value, value_size))));
}
}
}
test_partition.SaveStorageStats(kvs_, "fuzz Put_VaryingKeysAndValues");
}
} // namespace
} // namespace pw::kvs
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