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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/test_kit.h>
#include <vespa/config/helper/configfetcher.hpp>
#include <vespa/config/common/configcontext.h>
#include <vespa/vespalib/util/exception.h>
#include "config-my.h"
#include <atomic>
#include <thread>
using namespace config;
class MyCallback : public IFetcherCallback<MyConfig>
{
public:
MyCallback(const std::string & badConfig="");
~MyCallback() override;
void configure(std::unique_ptr<MyConfig> config) override
{
_config = std::move(config);
_configured = true;
if (_config->myField.compare(_badConfig) == 0) {
throw vespalib::Exception("Buhu");
}
}
std::unique_ptr<MyConfig> _config;
std::atomic<bool> _configured;
std::string _badConfig;
};
MyCallback::MyCallback(const std::string & badConfig) : _config(), _configured(false), _badConfig(badConfig) { }
MyCallback::~MyCallback() = default;
TEST("requireThatConfigIsAvailableOnConstruction") {
RawSpec spec("myField \"foo\"\n");
MyCallback cb;
{
ConfigFetcher fetcher(spec);
fetcher.subscribe<MyConfig>("myid", &cb);
fetcher.start();
ASSERT_TRUE(cb._config);
ASSERT_EQUAL("my", cb._config->defName());
ASSERT_EQUAL("foo", cb._config->myField);
}
}
#if 0
TEST("requireThatConfigUpdatesArePerformed") {
writeFile("test1.cfg", "foo");
FileSpec spec("test1.cfg");
MyCallback cb;
cb._configured = false;
vespalib::ThreadStackExecutor executor(1, 128_Ki);
{
ConfigFetcher fetcher(500);
fetcher.subscribe<MyConfig>("test1", &cb, spec);
fetcher.start();
ASSERT_TRUE(cb._configured);
ASSERT_TRUE(cb._config.get() != NULL);
ASSERT_EQUAL("my", cb._config->defName());
ASSERT_EQUAL("foo", cb._config->myField);
sleep(2);
writeFile("test1.cfg", "bar");
cb._configured = false;
vespalib::Timer timer;
while (!cb._configured && timer.elapsed() < 20s) {
if (cb._configured)
break;
std::this_thread::sleep_for(1s);
}
ASSERT_TRUE(cb._configured);
ASSERT_TRUE(cb._config);
ASSERT_EQUAL("my", cb._config->defName());
ASSERT_EQUAL("bar", cb._config->myField);
}
}
#endif
TEST("requireThatFetcherCanHandleMultipleConfigs") {
MyConfigBuilder b1, b2;
b1.myField = "foo";
b2.myField = "bar";
ConfigSet set;
set.addBuilder("test1", &b1);
set.addBuilder("test2", &b2);
MyCallback cb1;
MyCallback cb2;
{
ConfigFetcher fetcher(set);
fetcher.subscribe<MyConfig>("test1", &cb1);
fetcher.subscribe<MyConfig>("test2", &cb2);
fetcher.start();
ASSERT_TRUE(cb1._configured);
ASSERT_TRUE(cb2._configured);
ASSERT_TRUE(cb1._config);
ASSERT_TRUE(cb2._config);
ASSERT_EQUAL("my", cb1._config->defName());
ASSERT_EQUAL("foo", cb1._config->myField);
ASSERT_EQUAL("my", cb2._config->defName());
ASSERT_EQUAL("bar", cb2._config->myField);
}
}
TEST("verify that exceptions in callback is thrown on initial subscribe") {
MyConfigBuilder b1;
b1.myField = "foo";
ConfigSet set;
set.addBuilder("test1", &b1);
MyCallback cb("foo");
{
ConfigFetcher fetcher(set);
fetcher.subscribe<MyConfig>("test1", &cb);
ASSERT_EXCEPTION(fetcher.start(), vespalib::Exception, "Buhu");
}
}
namespace {
struct ConfigFixture {
MyConfigBuilder builder;
ConfigSet set;
std::shared_ptr<ConfigContext> context;
ConfigFixture() : builder(), set(), context() {
set.addBuilder("cfgid", &builder);
context = std::make_shared<ConfigContext>(set);
}
};
} // namespace <unnamed>
TEST_F("verify that config generation can be obtained from config fetcher", ConfigFixture) {
f1.builder.myField = "foo";
MyCallback cb;
{
ConfigFetcher fetcher(f1.context);
fetcher.subscribe<MyConfig>("cfgid", &cb);
fetcher.start();
EXPECT_EQUAL("foo", cb._config.get()->myField);
EXPECT_EQUAL(1, fetcher.getGeneration());
f1.builder.myField = "bar";
cb._configured = false;
f1.context->reload();
vespalib::Timer timer;
while (timer.elapsed() < 120s) {
if (cb._configured) {
break;
}
std::this_thread::sleep_for(10ms);;
}
EXPECT_EQUAL(2, fetcher.getGeneration());
EXPECT_EQUAL("bar", cb._config.get()->myField);
}
}
TEST_MAIN() { TEST_RUN_ALL(); }
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