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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2018 Red Hat, Inc.
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#include "rgw/rgw_putobj.h"
#include <gtest/gtest.h>
inline bufferlist string_buf(const char* buf) {
bufferlist bl;
bl.append(buffer::create_static(strlen(buf), (char*)buf));
return bl;
}
struct Op {
std::string data;
uint64_t offset;
};
inline bool operator==(const Op& lhs, const Op& rhs) {
return lhs.data == rhs.data && lhs.offset == rhs.offset;
}
inline std::ostream& operator<<(std::ostream& out, const Op& op) {
return out << "{off=" << op.offset << " data='" << op.data << "'}";
}
struct MockProcessor : rgw::putobj::DataProcessor {
std::vector<Op> ops;
int process(bufferlist&& data, uint64_t offset) override {
ops.push_back({data.to_str(), offset});
return {};
}
};
TEST(PutObj_Chunk, FlushHalf)
{
MockProcessor mock;
rgw::putobj::ChunkProcessor chunk(&mock, 4);
ASSERT_EQ(0, chunk.process(string_buf("22"), 0));
ASSERT_TRUE(mock.ops.empty()); // no writes
ASSERT_EQ(0, chunk.process({}, 2)); // flush
ASSERT_EQ(2u, mock.ops.size());
EXPECT_EQ(Op({"22", 0}), mock.ops[0]);
EXPECT_EQ(Op({"", 2}), mock.ops[1]);
}
TEST(PutObj_Chunk, One)
{
MockProcessor mock;
rgw::putobj::ChunkProcessor chunk(&mock, 4);
ASSERT_EQ(0, chunk.process(string_buf("4444"), 0));
ASSERT_EQ(1u, mock.ops.size());
EXPECT_EQ(Op({"4444", 0}), mock.ops[0]);
ASSERT_EQ(0, chunk.process({}, 4)); // flush
ASSERT_EQ(2u, mock.ops.size());
EXPECT_EQ(Op({"", 4}), mock.ops[1]);
}
TEST(PutObj_Chunk, OneAndFlushHalf)
{
MockProcessor mock;
rgw::putobj::ChunkProcessor chunk(&mock, 4);
ASSERT_EQ(0, chunk.process(string_buf("22"), 0));
ASSERT_TRUE(mock.ops.empty());
ASSERT_EQ(0, chunk.process(string_buf("4444"), 2));
ASSERT_EQ(1u, mock.ops.size());
EXPECT_EQ(Op({"2244", 0}), mock.ops[0]);
ASSERT_EQ(0, chunk.process({}, 6)); // flush
ASSERT_EQ(3u, mock.ops.size());
EXPECT_EQ(Op({"44", 4}), mock.ops[1]);
EXPECT_EQ(Op({"", 6}), mock.ops[2]);
}
TEST(PutObj_Chunk, Two)
{
MockProcessor mock;
rgw::putobj::ChunkProcessor chunk(&mock, 4);
ASSERT_EQ(0, chunk.process(string_buf("88888888"), 0));
ASSERT_EQ(2u, mock.ops.size());
EXPECT_EQ(Op({"8888", 0}), mock.ops[0]);
EXPECT_EQ(Op({"8888", 4}), mock.ops[1]);
ASSERT_EQ(0, chunk.process({}, 8)); // flush
ASSERT_EQ(3u, mock.ops.size());
EXPECT_EQ(Op({"", 8}), mock.ops[2]);
}
TEST(PutObj_Chunk, TwoAndFlushHalf)
{
MockProcessor mock;
rgw::putobj::ChunkProcessor chunk(&mock, 4);
ASSERT_EQ(0, chunk.process(string_buf("22"), 0));
ASSERT_TRUE(mock.ops.empty());
ASSERT_EQ(0, chunk.process(string_buf("88888888"), 2));
ASSERT_EQ(2u, mock.ops.size());
EXPECT_EQ(Op({"2288", 0}), mock.ops[0]);
EXPECT_EQ(Op({"8888", 4}), mock.ops[1]);
ASSERT_EQ(0, chunk.process({}, 10)); // flush
ASSERT_EQ(4u, mock.ops.size());
EXPECT_EQ(Op({"88", 8}), mock.ops[2]);
EXPECT_EQ(Op({"", 10}), mock.ops[3]);
}
using StripeMap = std::map<uint64_t, uint64_t>; // offset, stripe_size
class StripeMapGen : public rgw::putobj::StripeGenerator {
const StripeMap& stripes;
public:
StripeMapGen(const StripeMap& stripes) : stripes(stripes) {}
int next(uint64_t offset, uint64_t *stripe_size) override {
auto i = stripes.find(offset);
if (i == stripes.end()) {
return -ENOENT;
}
*stripe_size = i->second;
return 0;
}
};
TEST(PutObj_Stripe, DifferentStripeSize)
{
MockProcessor mock;
StripeMap stripes{
{ 0, 4},
{ 4, 6},
{10, 2}
};
StripeMapGen gen(stripes);
rgw::putobj::StripeProcessor processor(&mock, &gen, stripes.begin()->second);
ASSERT_EQ(0, processor.process(string_buf("22"), 0));
ASSERT_EQ(1u, mock.ops.size());
EXPECT_EQ(Op({"22", 0}), mock.ops[0]);
ASSERT_EQ(0, processor.process(string_buf("4444"), 2));
ASSERT_EQ(4u, mock.ops.size());
EXPECT_EQ(Op({"44", 2}), mock.ops[1]);
EXPECT_EQ(Op({"", 4}), mock.ops[2]); // flush
EXPECT_EQ(Op({"44", 0}), mock.ops[3]);
ASSERT_EQ(0, processor.process(string_buf("666666"), 6));
ASSERT_EQ(7u, mock.ops.size());
EXPECT_EQ(Op({"6666", 2}), mock.ops[4]);
EXPECT_EQ(Op({"", 6}), mock.ops[5]); // flush
EXPECT_EQ(Op({"66", 0}), mock.ops[6]);
ASSERT_EQ(0, processor.process({}, 12));
ASSERT_EQ(8u, mock.ops.size());
EXPECT_EQ(Op({"", 2}), mock.ops[7]); // flush
// gen returns an error past this
ASSERT_EQ(-ENOENT, processor.process(string_buf("1"), 12));
}
TEST(PutObj_Stripe, SkipFirstChunk)
{
MockProcessor mock;
StripeMap stripes{
{0, 4},
{4, 4},
};
StripeMapGen gen(stripes);
rgw::putobj::StripeProcessor processor(&mock, &gen, stripes.begin()->second);
ASSERT_EQ(0, processor.process(string_buf("666666"), 2));
ASSERT_EQ(3u, mock.ops.size());
EXPECT_EQ(Op({"66", 2}), mock.ops[0]);
EXPECT_EQ(Op({"", 4}), mock.ops[1]); // flush
EXPECT_EQ(Op({"6666", 0}), mock.ops[2]);
ASSERT_EQ(0, processor.process({}, 8));
ASSERT_EQ(4u, mock.ops.size());
EXPECT_EQ(Op({"", 4}), mock.ops[3]); // flush
}
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