record_store_test_validate.h

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// record_store_test_validate.h

#pragma once


#include "mongo/db/storage/record_data.h"
#include "mongo/db/storage/record_store.h"
#include "mongo/db/storage/record_store_test_harness.h"
#include "mongo/unittest/unittest.h"

namespace mongo {

class ValidateAdaptorSpy : public ValidateAdaptor {
public:
    ValidateAdaptorSpy() {}

    ValidateAdaptorSpy(const std::set<std::string>& remain) : _remain(remain) {}

    ~ValidateAdaptorSpy() {}

    Status validate(const RecordId& recordId, const RecordData& recordData, size_t* dataSize) {
        std::string s(recordData.data());
        ASSERT(1 == _remain.erase(s));

        *dataSize = recordData.size();
        return Status::OK();
    }

    bool allValidated() {
        return _remain.empty();
    }

private:
    std::set<std::string> _remain;  // initially contains all inserted records
};

class ValidateTest : public mongo::unittest::Test {
public:
    ValidateTest()
        : _harnessHelper(newRecordStoreHarnessHelper()),
          _rs(_harnessHelper->newNonCappedRecordStore()) {}

    ServiceContext::UniqueOperationContext newOperationContext() {
        return _harnessHelper->newOperationContext();
    }

    RecordStore& getRecordStore() {
        return *_rs;
    }

    const std::set<std::string>& getInsertedRecords() {
        return _remain;
    }

    void setUp() {
        {
            ServiceContext::UniqueOperationContext opCtx(newOperationContext());
            ASSERT_EQUALS(0, _rs->numRecords(opCtx.get()));
        }

        int nToInsert = 10;
        for (int i = 0; i < nToInsert; i++) {
            ServiceContext::UniqueOperationContext opCtx(newOperationContext());
            {
                std::stringstream ss;
                ss << "record " << i;
                std::string data = ss.str();
                ASSERT(_remain.insert(data).second);

                WriteUnitOfWork uow(opCtx.get());
                StatusWith<RecordId> res = _rs->insertRecord(
                    opCtx.get(), data.c_str(), data.size() + 1, Timestamp(), false);
                ASSERT_OK(res.getStatus());
                uow.commit();
            }
        }

        {
            ServiceContext::UniqueOperationContext opCtx(newOperationContext());
            ASSERT_EQUALS(nToInsert, _rs->numRecords(opCtx.get()));
        }
    }

private:
    std::unique_ptr<RecordStoreHarnessHelper> _harnessHelper;
    std::unique_ptr<RecordStore> _rs;
    std::set<std::string> _remain;
};

}  // namespace mongo