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/**
* Copyright 2024, XGBoost Contributors
*/
#include <gtest/gtest.h>
#include <xgboost/collective/result.h>
namespace xgboost::collective {
TEST(Result, Concat) {
auto rc0 = Fail("foo");
auto rc1 = Fail("bar");
auto rc = std::move(rc0) + std::move(rc1);
ASSERT_NE(rc.Report().find("foo"), std::string::npos);
ASSERT_NE(rc.Report().find("bar"), std::string::npos);
auto rc2 = Fail("Another", std::move(rc));
auto assert_that = [](Result const& rc) {
ASSERT_NE(rc.Report().find("Another"), std::string::npos);
ASSERT_NE(rc.Report().find("foo"), std::string::npos);
ASSERT_NE(rc.Report().find("bar"), std::string::npos);
};
assert_that(rc2);
auto empty = Success();
auto rc3 = std::move(empty) + std::move(rc2);
assert_that(rc3);
empty = Success();
auto rc4 = std::move(rc3) + std::move(empty);
assert_that(rc4);
}
} // namespace xgboost::collective
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