Function TEST

src/test/erasure-code/TestErasureCodeLrc.cc:32–92

using namespace std;

TEST(ErasureCodeLrc, parse_rule)
{
  ErasureCodeLrc lrc(g_conf().get_val<std::string>("erasure_code_dir"));
  EXPECT_EQ("default", lrc.rule_root);
  EXPECT_EQ("host", lrc.rule_steps.front().type);

  ErasureCodeProfile profile;
  profile["crush-root"] = "other";
  EXPECT_EQ(0, lrc.parse_rule(profile, &cerr));
  EXPECT_EQ("other", lrc.rule_root);

  profile["crush-steps"] = "[]";
  EXPECT_EQ(0, lrc.parse_rule(profile, &cerr));
  EXPECT_TRUE(lrc.rule_steps.empty());

  profile["crush-steps"] = "0";
  EXPECT_EQ(ERROR_LRC_ARRAY, lrc.parse_rule(profile, &cerr));

  profile["crush-steps"] = "{";
  EXPECT_EQ(ERROR_LRC_PARSE_JSON, lrc.parse_rule(profile, &cerr));

  profile["crush-steps"] = "[0]";
  EXPECT_EQ(ERROR_LRC_ARRAY, lrc.parse_rule(profile, &cerr));

  profile["crush-steps"] = "[[0]]";
  EXPECT_EQ(ERROR_LRC_RULE_OP, lrc.parse_rule(profile, &cerr));

  profile["crush-steps"] = "[[\"choose\", 0]]";
  EXPECT_EQ(ERROR_LRC_RULE_TYPE, lrc.parse_rule(profile, &cerr));

  profile["crush-steps"] = "[[\"choose\", \"host\", []]]";
  EXPECT_EQ(ERROR_LRC_RULE_N, lrc.parse_rule(profile, &cerr));

  profile["crush-steps"] = "[[\"choose\", \"host\", 2]]";
  EXPECT_EQ(0, lrc.parse_rule(profile, &cerr));

  const ErasureCodeLrc::Step &step = lrc.rule_steps.front();
  EXPECT_EQ("choose", step.op);
  EXPECT_EQ("host", step.type);
  EXPECT_EQ(2, step.n);

  profile["crush-steps"] =
    "["
    " [\"choose\", \"rack\", 2], "
    " [\"chooseleaf\", \"host\", 5], "
    "]";
  EXPECT_EQ(0, lrc.parse_rule(profile, &cerr));
  EXPECT_EQ(2U, lrc.rule_steps.size());
  {
    const ErasureCodeLrc::Step &step = lrc.rule_steps[0];
    EXPECT_EQ("choose", step.op);
    EXPECT_EQ("rack", step.type);
    EXPECT_EQ(2, step.n);
  }
  {
    const ErasureCodeLrc::Step &step = lrc.rule_steps[1];
    EXPECT_EQ("chooseleaf", step.op);
    EXPECT_EQ("host", step.type);