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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/document/bucket/bucketid.h>
#include <vespa/storage/common/bucket_utils.h>
#include <vespa/vespalib/gtest/gtest.h>
using document::BucketId;
using storage::get_super_bucket_key;
constexpr uint8_t MUB = storage::spi::BucketLimits::MinUsedBits;
TEST(SuperBucketKeyTest, super_bucket_key_is_min_used_bits_of_msb_of_bucket_id_key)
{
// Note that bits are reversed when creating a key from the bucket id
EXPECT_EQ(0x0F, get_super_bucket_key(BucketId(MUB, 0x1F0)));
EXPECT_EQ(0x0F, get_super_bucket_key(BucketId(MUB + 1, 0x1F0)));
EXPECT_EQ(0x0F, get_super_bucket_key(BucketId(MUB, 0x2F0)));
EXPECT_EQ(0x0F, get_super_bucket_key(BucketId(MUB + 1, 0x2F0)));
EXPECT_EQ(0xF4, get_super_bucket_key(BucketId(MUB, 0x12F)));
EXPECT_EQ(0xF4, get_super_bucket_key(BucketId(MUB + 1, 0x12F)));
EXPECT_EQ(0xF4, get_super_bucket_key(BucketId(MUB, 0x22F)));
EXPECT_EQ(0xF4, get_super_bucket_key(BucketId(MUB + 1, 0x22F)));
}
TEST(SuperBucketKeyTest, super_bucket_key_is_zero_when_bucket_id_is_zero)
{
EXPECT_EQ(0, get_super_bucket_key(BucketId()));
EXPECT_EQ(0, get_super_bucket_key(BucketId(0)));
}
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