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#include "retry.h"
#include <library/cpp/testing/unittest/registar.h>
using namespace NYql;
namespace {
class TMyError : public yexception {
};
}
Y_UNIT_TEST_SUITE(TRetryTests) {
Y_UNIT_TEST(ZeroAttempts) {
auto r = WithRetry<TMyError>(0,
[]() { return TString("abc"); },
[](auto, auto, auto) { UNIT_FAIL("Exception handler invoked"); });
UNIT_ASSERT_VALUES_EQUAL("abc", r);
}
Y_UNIT_TEST(NoRetries) {
auto r = WithRetry<TMyError>(5,
[]() { return TString("abc"); },
[](auto, auto, auto) { UNIT_FAIL("Exception handler invoked"); });
UNIT_ASSERT_VALUES_EQUAL("abc", r);
}
Y_UNIT_TEST(NoRetriesButException) {
UNIT_ASSERT_EXCEPTION_CONTAINS(WithRetry<TMyError>(5,
[]() { throw yexception() << "xxxx"; },
[](auto, auto, auto) { UNIT_FAIL("Exception handler invoked"); }), yexception, "xxxx");
}
Y_UNIT_TEST(FewRetries) {
int counter = 0;
int exceptions = 0;
auto r = WithRetry<TMyError>(3, [&]() {
if (counter++ < 2) {
throw TMyError() << "yyyy";
}
return counter;
}, [&](const auto& e, int attempt, int attemptCount) {
++exceptions;
UNIT_ASSERT_VALUES_EQUAL(e.what(), "yyyy");
UNIT_ASSERT_VALUES_EQUAL(attempt, counter);
UNIT_ASSERT_VALUES_EQUAL(attemptCount, 3);
});
UNIT_ASSERT_VALUES_EQUAL(2, exceptions);
UNIT_ASSERT_VALUES_EQUAL(3, r);
UNIT_ASSERT_VALUES_EQUAL(3, counter);
}
Y_UNIT_TEST(ManyRetries) {
int counter = 0;
int exceptions = 0;
UNIT_ASSERT_EXCEPTION_CONTAINS(WithRetry<TMyError>(3, [&]() {
throw TMyError() << "yyyy" << counter++;
}, [&](const auto& e, int attempt, int attemptCount) {
++exceptions;
UNIT_ASSERT_STRING_CONTAINS(e.what(), "yyyy");
UNIT_ASSERT_VALUES_EQUAL(attempt, counter);
UNIT_ASSERT_VALUES_EQUAL(attemptCount, 3);
}), TMyError, "yyyy2");
UNIT_ASSERT_VALUES_EQUAL(2, exceptions);
UNIT_ASSERT_VALUES_EQUAL(3, counter);
}
}
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