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etcd-cpp-apiv3/tst/EtcdTest.cpp

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#define CATCH_CONFIG_MAIN
#include <catch.hpp>
#include "etcd/Client.hpp"
TEST_CASE("setup")
{
etcd::Client etcd("http://127.0.0.1:4001");
etcd.rmdir("/test", true).wait();
}
TEST_CASE("add a new key")
{
etcd::Client etcd("http://127.0.0.1:4001");
etcd::Response resp = etcd.add("/test/key1", "42").get();
REQUIRE(0 == resp.error_code());
CHECK("create" == resp.action());
etcd::Value const & val = resp.value();
CHECK("42" == val.as_string());
CHECK("/test/key1" == val.key());
CHECK(!val.is_dir());
CHECK(0 < val.created_index());
CHECK(0 < val.modified_index());
CHECK(0 < resp.index()); // X-Etcd-Index header value
CHECK(105 == etcd.add("/test/key1", "43").get().error_code()); // Key already exists
CHECK(105 == etcd.add("/test/key1", "42").get().error_code()); // Key already exists
CHECK("Key already exists" == etcd.add("/test/key1", "42").get().error_message());
}
TEST_CASE("read a value from etcd")
{
etcd::Client etcd("http://127.0.0.1:4001");
etcd::Response resp = etcd.get("/test/key1").get();
CHECK("get" == resp.action());
REQUIRE(resp.is_ok());
REQUIRE(0 == resp.error_code());
CHECK("42" == resp.value().as_string());
CHECK("" == etcd.get("/test").get().value().as_string()); // key points to a directory
}
TEST_CASE("simplified read")
{
etcd::Client etcd("http://127.0.0.1:4001");
CHECK("42" == etcd.get("/test/key1").get().value().as_string());
std::cout << "get error code kahit success: " << etcd.get("/test/key1").get().error_code() << std::endl;
CHECK(100 == etcd.get("/test/key2").get().error_code()); // Key not found
}
TEST_CASE("modify a key")
{
etcd::Client etcd("http://127.0.0.1:4001");
etcd::Response resp = etcd.modify("/test/key1", "43").get();
REQUIRE(0 == resp.error_code()); // overwrite
CHECK("update" == resp.action());
CHECK(100 == etcd.modify("/test/key2", "43").get().error_code()); // Key not found
CHECK("43" == etcd.modify("/test/key1", "42").get().prev_value().as_string());
}
//TEST_CASE("set a key")
//{
// etcd::Client etcd("http://127.0.0.1:4001");
// etcd::Response resp = etcd.set("/test/key1", "43").get();
// REQUIRE(0 == resp.error_code()); // overwrite
// CHECK("set" == resp.action());
// CHECK(0 == etcd.set("/test/key2", "43").get().error_code()); // create new
// CHECK("43" == etcd.set("/test/key2", "44").get().prev_value().as_string());
// CHECK("" == etcd.set("/test/key3", "44").get().prev_value().as_string());
// CHECK(102 == etcd.set("/test", "42").get().error_code()); // Not a file
//}
//
//FBDL rm naman
//TEST_CASE("delete a value")
//{
// std::cout << "FBDL do a delete via rm only" <<std::endl;
// etcd::Client etcd("http://127.0.0.1:4001");
// CHECK(3 == etcd.ls("/test").get().keys().size());
//
// std::cout << "FBDL invoking rm in test" <<std::endl;
// etcd::Response resp = etcd.rm("/test/key1").get();
// CHECK("43" == resp.prev_value().as_string());
// CHECK("delete" == resp.action());
// CHECK(2 == etcd.ls("/test").get().keys().size());
//}
TEST_CASE("delete a value V3")
{
std::cout << "FBDL do a delete via rm only V3" <<std::endl;
etcd::Client etcd("http://127.0.0.1:4001");
etcd.setv3("test/key1", "42"); //temporary get
etcd::Response resp = etcd.rm("test/key1").get();
CHECK("42" == resp.prev_value().as_string());
CHECK("delete" == resp.action());
}
TEST_CASE("create a directory")
{
etcd::Client etcd("http://127.0.0.1:4001");
etcd::Response resp = etcd.mkdir("/test/new_dir").get();
CHECK("set" == resp.action());
CHECK(resp.value().is_dir());
}
TEST_CASE("list a directory")
{
etcd::Client etcd("http://127.0.0.1:4001");
CHECK(0 == etcd.ls("/test/new_dir").get().keys().size());
etcd.set("/test/new_dir/key1", "value1").wait();
etcd.set("/test/new_dir/key2", "value2").wait();
etcd.mkdir("/test/new_dir/sub_dir").wait();
etcd::Response resp = etcd.ls("/test/new_dir").get();
CHECK("get" == resp.action());
REQUIRE(3 == resp.keys().size());
CHECK("key1" == resp.key(0));
CHECK("key2" == resp.key(1));
CHECK("sub_dir" == resp.key(2));
CHECK("value1" == resp.value(0).as_string());
CHECK("value2" == resp.value(1).as_string());
CHECK(resp.values()[2].is_dir());
CHECK(0 == etcd.ls("/test/new_dir/key1").get().error_code());
}
TEST_CASE("delete a directory")
{
etcd::Client etcd("http://127.0.0.1:4001");
CHECK(108 == etcd.rmdir("/test/new_dir").get().error_code()); // Directory not empty
CHECK(0 == etcd.rmdir("/test/new_dir", true).get().error_code());
}
TEST_CASE("wait for a value change")
{
etcd::Client etcd("http://127.0.0.1:4001");
etcd.set("/test/key1", "42").wait();
pplx::task<etcd::Response> res = etcd.watch("/test/key1");
CHECK(!res.is_done());
sleep(1);
CHECK(!res.is_done());
etcd.set("/test/key1", "43").get();
sleep(1);
REQUIRE(res.is_done());
REQUIRE("set" == res.get().action());
CHECK("43" == res.get().value().as_string());
}
//FBDL: first watch
//TEST_CASE("FBDL wait for a value change")
//{
// std::cout << "FBDL wait for a value change" << std::endl;
// etcd::Client etcd("http://127.0.0.1:4001");
//// etcd.set("/test/key1", "42").wait();
// etcd.setv3("test/key1", "42");
//
//// pplx::task<etcd::Response> res = etcd.watch("/test/key1");
//// CHECK(!res.is_done());
//// sleep(1);
//// CHECK(!res.is_done());
//// CHECK("42" == etcd.get("/test/key1").get().value().as_string());
////
//// etcd.set("/test/key1", "43").get();
//// sleep(1);
//// REQUIRE(res.is_done());
//// REQUIRE("set" == res.get().action());
//// CHECK("43" == res.get().value().as_string());
//// CHECK("43" == etcd.get("/test/key1").get().value().as_string());
//}
TEST_CASE("wait for a directory change")
{
etcd::Client etcd("http://127.0.0.1:4001");
pplx::task<etcd::Response> res = etcd.watch("/test", true);
CHECK(!res.is_done());
sleep(1);
CHECK(!res.is_done());
etcd.add("/test/key4", "44").wait();
sleep(1);
REQUIRE(res.is_done());
CHECK("create" == res.get().action());
CHECK("44" == res.get().value().as_string());
pplx::task<etcd::Response> res2 = etcd.watch("/test", true);
CHECK(!res2.is_done());
sleep(1);
CHECK(!res2.is_done());
etcd.set("/test/key4", "45").wait();
REQUIRE(res2.is_done());
CHECK("set" == res2.get().action());
CHECK("45" == res2.get().value().as_string());
}
TEST_CASE("watch changes in the past")
{
etcd::Client etcd("http://127.0.0.1:4001");
int index = etcd.set("/test/key1", "42").get().index();
etcd.set("/test/key1", "43").wait();
etcd.set("/test/key1", "44").wait();
etcd.set("/test/key1", "45").wait();
etcd::Response res = etcd.watch("/test/key1", ++index).get();
CHECK("set" == res.action());
CHECK("43" == res.value().as_string());
res = etcd.watch("/test/key1", ++index).get();
CHECK("set" == res.action());
CHECK("44" == res.value().as_string());
res = etcd.watch("/test", ++index, true).get();
CHECK("set" == res.action());
CHECK("45" == res.value().as_string());
}
TEST_CASE("atomic compare-and-swap")
{
etcd::Client etcd("http://127.0.0.1:4001");
etcd.set("/test/key1", "42").wait();
// modify success
etcd::Response res = etcd.modify_if("/test/key1", "43", "42").get();
int index = res.index();
REQUIRE(res.is_ok());
CHECK("compareAndSwap" == res.action());
CHECK("43" == res.value().as_string());
// modify fails the second time
res = etcd.modify_if("/test/key1", "44", "42").get();
CHECK(!res.is_ok());
CHECK(101 == res.error_code());
CHECK("Compare failed" == res.error_message());
// succes with the correct index
res = etcd.modify_if("/test/key1", "44", index).get();
REQUIRE(res.is_ok());
CHECK("compareAndSwap" == res.action());
CHECK("44" == res.value().as_string());
// index changes so second modify fails
res = etcd.modify_if("/test/key1", "45", index).get();
CHECK(!res.is_ok());
CHECK(101 == res.error_code());
CHECK("Compare failed" == res.error_message());
}
TEST_CASE("atomic compare-and-delete based on prevValue")
{
etcd::Client etcd("http://127.0.0.1:4001");
etcd.set("/test/key1", "42").wait();
etcd::Response res = etcd.rm_if("/test/key1", "43").get();
CHECK(!res.is_ok());
CHECK(101 == res.error_code());
CHECK("Compare failed" == res.error_message());
res = etcd.rm_if("/test/key1", "42").get();
REQUIRE(res.is_ok());
CHECK("compareAndDelete" == res.action());
CHECK("42" == res.prev_value().as_string());
}
TEST_CASE("atomic compare-and-delete based on prevIndex")
{
etcd::Client etcd("http://127.0.0.1:4001");
int index = etcd.set("/test/key1", "42").get().index();
etcd::Response res = etcd.rm_if("/test/key1", index - 1).get();
CHECK(!res.is_ok());
CHECK(101 == res.error_code());
CHECK("Compare failed" == res.error_message());
res = etcd.rm_if("/test/key1", index).get();
REQUIRE(res.is_ok());
CHECK("compareAndDelete" == res.action());
CHECK("42" == res.prev_value().as_string());
}
TEST_CASE("cleanup")
{
etcd::Client etcd("http://127.0.0.1:4001");
REQUIRE(0 == etcd.rmdir("/test", true).get().error_code());
}
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