X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Ftest%2Fcommon%2Ftest_config.cc;fp=src%2Fceph%2Fsrc%2Ftest%2Fcommon%2Ftest_config.cc;h=1b8d8ac4410703b8bbc7df3bb7dda01976078ada;hb=812ff6ca9fcd3e629e49d4328905f33eee8ca3f5;hp=0000000000000000000000000000000000000000;hpb=15280273faafb77777eab341909a3f495cf248d9;p=stor4nfv.git diff --git a/src/ceph/src/test/common/test_config.cc b/src/ceph/src/test/common/test_config.cc new file mode 100644 index 0000000..1b8d8ac --- /dev/null +++ b/src/ceph/src/test/common/test_config.cc @@ -0,0 +1,243 @@ +// -*- 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) 2014 Cloudwatt + * + * Author: Loic Dachary + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Library Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Library Public License for more details. + * + * + */ +#include "common/config.h" +#include "common/errno.h" +#include "gtest/gtest.h" + +extern std::string exec(const char* cmd); // defined in test_hostname.cc + +class test_md_config_t : public md_config_t, public ::testing::Test { +public: + + test_md_config_t() + : md_config_t(true), Test() + {} + + void test_expand_meta() { + Mutex::Locker l(lock); + // successfull meta expansion $run_dir and ${run_dir} + { + ostringstream oss; + std::string before = " BEFORE "; + std::string after = " AFTER "; + + std::string val(before + "$run_dir${run_dir}" + after); + EXPECT_TRUE(expand_meta(val, &oss)); + EXPECT_EQ(before + "/var/run/ceph/var/run/ceph" + after, val); + EXPECT_EQ("", oss.str()); + } + { + ostringstream oss; + std::string before = " BEFORE "; + std::string after = " AFTER "; + std::string val(before + "$host${host}" + after); + EXPECT_TRUE(expand_meta(val, &oss)); + std::string hostname = exec("hostname -s"); + EXPECT_EQ(before + hostname + hostname + after, val); + EXPECT_EQ("", oss.str()); + } + // no meta expansion if variables are unknown + { + ostringstream oss; + std::string expected = "expect $foo and ${bar} to not expand"; + std::string val = expected; + EXPECT_FALSE(expand_meta(val, &oss)); + EXPECT_EQ(expected, val); + EXPECT_EQ("", oss.str()); + } + // recursive variable expansion + { + std::string host = "localhost"; + EXPECT_EQ(0, set_val("host", host.c_str(), false)); + + std::string mon_host = "$cluster_network"; + EXPECT_EQ(0, set_val("mon_host", mon_host.c_str(), false)); + + std::string lockdep = "true"; + EXPECT_EQ(0, set_val("lockdep", lockdep.c_str(), false)); + + std::string cluster_network = "$public_network $public_network $lockdep $host"; + EXPECT_EQ(0, set_val("cluster_network", cluster_network.c_str(), false)); + + std::string public_network = "NETWORK"; + EXPECT_EQ(0, set_val("public_network", public_network.c_str(), false)); + + ostringstream oss; + std::string val = "$mon_host"; + EXPECT_TRUE(expand_meta(val, &oss)); + EXPECT_EQ(public_network + " " + + public_network + " " + + lockdep + " " + + "localhost", val); + EXPECT_EQ("", oss.str()); + } + // variable expansion loops are non fatal + { + std::string mon_host = "$cluster_network"; + EXPECT_EQ(0, set_val("mon_host", mon_host.c_str(), false)); + + std::string cluster_network = "$public_network"; + EXPECT_EQ(0, set_val("cluster_network", cluster_network.c_str(), false)); + + std::string public_network = "$mon_host"; + EXPECT_EQ(0, set_val("public_network", public_network.c_str(), false)); + + ostringstream oss; + std::string val = "$mon_host"; + EXPECT_TRUE(expand_meta(val, &oss)); + EXPECT_EQ("$cluster_network", val); + const char *expected_oss = + "variable expansion loop at mon_host=$cluster_network\n" + "expansion stack: \n" + "public_network=$mon_host\n" + "cluster_network=$public_network\n" + "mon_host=$cluster_network\n"; + EXPECT_EQ(expected_oss, oss.str()); + } + } + + void test_expand_all_meta() { + Mutex::Locker l(lock); + int before_count = 0, data_dir = 0; + for (const auto &i : schema) { + const Option &opt = i.second; + if (opt.type == Option::TYPE_STR) { + const auto &str = boost::get(opt.value); + if (str.find("$") != string::npos) + before_count++; + if (str.find("$data_dir") != string::npos) + data_dir++; + } + } + + // if there are no meta variables in the default configuration, + // something must be done to check the expected side effect + // of expand_all_meta + ASSERT_LT(0, before_count); + expand_all_meta(); + int after_count = 0; + for (auto& i : values) { + const auto &opt = schema.at(i.first); + if (opt.type == Option::TYPE_STR) { + const std::string &str = boost::get(i.second); + size_t pos = 0; + while ((pos = str.find("$", pos)) != string::npos) { + if (str.substr(pos, 8) != "$channel") { + std::cout << "unexpected meta-variable found at pos " << pos + << " of '" << str << "'" << std::endl; + after_count++; + } + pos++; + } + } + } + ASSERT_EQ(data_dir, after_count); + } +}; + +TEST_F(test_md_config_t, expand_meta) +{ + test_expand_meta(); +} + +TEST_F(test_md_config_t, expand_all_meta) +{ + test_expand_all_meta(); +} + +TEST(md_config_t, set_val) +{ + int buf_size = 1024; + md_config_t conf; + // disable meta variable expansion + { + char *buf = (char*)malloc(buf_size); + std::string expected = "$host"; + EXPECT_EQ(0, conf.set_val("mon_host", expected.c_str(), false)); + EXPECT_EQ(0, conf.get_val("mon_host", &buf, buf_size)); + EXPECT_EQ(expected, buf); + free(buf); + } + // meta variable expansion is enabled by default + { + char *run_dir = (char*)malloc(buf_size); + EXPECT_EQ(0, conf.get_val("run_dir", &run_dir, buf_size)); + EXPECT_EQ(0, conf.set_val("admin_socket", "$run_dir")); + char *admin_socket = (char*)malloc(buf_size); + EXPECT_EQ(0, conf.get_val("admin_socket", &admin_socket, buf_size)); + EXPECT_EQ(std::string(run_dir), std::string(admin_socket)); + free(run_dir); + free(admin_socket); + } +} + +TEST(Option, validation) +{ + Option opt_int("foo", Option::TYPE_INT, Option::LEVEL_BASIC); + opt_int.set_min_max(5, 10); + + std::string msg; + EXPECT_EQ(-EINVAL, opt_int.validate(Option::value_t(int64_t(4)), &msg)); + EXPECT_EQ(-EINVAL, opt_int.validate(Option::value_t(int64_t(11)), &msg)); + EXPECT_EQ(0, opt_int.validate(Option::value_t(int64_t(7)), &msg)); + + Option opt_enum("foo", Option::TYPE_STR, Option::LEVEL_BASIC); + opt_enum.set_enum_allowed({"red", "blue"}); + EXPECT_EQ(0, opt_enum.validate(Option::value_t(std::string("red")), &msg)); + EXPECT_EQ(0, opt_enum.validate(Option::value_t(std::string("blue")), &msg)); + EXPECT_EQ(-EINVAL, opt_enum.validate(Option::value_t(std::string("green")), &msg)); + + Option opt_validator("foo", Option::TYPE_INT, Option::LEVEL_BASIC); + opt_validator.set_validator([](std::string *value, std::string *error_message){ + if (*value == std::string("one")) { + *value = "1"; + return 0; + } else if (*value == std::string("666")) { + return -EINVAL; + } else { + return 0; + } + }); + + std::string input = "666"; // An explicitly forbidden value + EXPECT_EQ(-EINVAL, opt_validator.pre_validate(&input, &msg)); + EXPECT_EQ(input, "666"); + + input = "123"; // A permitted value with no special behaviour + EXPECT_EQ(0, opt_validator.pre_validate(&input, &msg)); + EXPECT_EQ(input, "123"); + + input = "one"; // A value that has a magic conversion + EXPECT_EQ(0, opt_validator.pre_validate(&input, &msg)); + EXPECT_EQ(input, "1"); +} + +/* + * Local Variables: + * compile-command: "cd ../.. ; + * make unittest_config && + * valgrind \ + * --max-stackframe=20000000 --tool=memcheck \ + * ./unittest_config # --gtest_filter=md_config_t.set_val + * " + * End: + */