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Add dispatcher test coverage for value_t as a parameter type. #694

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Merged
evoskuil merged 1 commit into from
Dec 30, 2025
Merged

Add dispatcher test coverage for value_t as a parameter type. #694

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161 changes: 161 additions & 0 deletions test/messages/rpc/dispatcher.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1006,4 +1006,165 @@ BOOST_AUTO_TEST_CASE(dispatcher__notify__missing_nullable_pointer__expected)
instance.stop(error::service_stopped);
}

// uses subscriber<> (void handler returns).
struct mock_value_type
{
static constexpr std::tuple methods
{
method<"value_type", double, value_t>{ "a", "b" },
method<"value_optional", double, optional<empty::value>>{ "a", "b" },
method<"value_nullable", double, nullable<value_t>>{ "a", "b" }
};

template <typename... Args>
using subscriber = network::subscriber<Args...>;

template <size_t Index>
using at = method_at<methods, Index>;

using value_type = at<0>;
using value_optional = at<1>;
using value_nullable = at<2>;
};

using mock_value_type_interface = publish<mock_value_type>;

BOOST_AUTO_TEST_CASE(dispatcher__notify__value_type__expected)
{
dispatcher<mock_value_type_interface> instance{};
using method = mock_value_type_interface::value_type;
double result_a{};
value_t result_b{};

instance.subscribe([&](const code&, method::tag, double a, const value_t& b)
{
result_a = a;
result_b = b;
});

const auto ec1 = instance.notify(
{
.method = string_t{ method::name },
.params = { array_t{ { 42.0 }, { false } } }
});
BOOST_REQUIRE(!ec1);
BOOST_REQUIRE(std::holds_alternative<bool>(result_b.value()));
BOOST_REQUIRE(!std::get<bool>(result_b.value()));
BOOST_REQUIRE_EQUAL(result_a, 42.0);

const auto ec2 = instance.notify(
{
.method = string_t{ method::name },
.params = { object_t{ { "a", 22.0 }, { "b", false } } }
});
BOOST_REQUIRE(!ec2);
BOOST_REQUIRE(std::holds_alternative<bool>(result_b.value()));
BOOST_REQUIRE(!std::get<bool>(result_b.value()));
BOOST_REQUIRE_EQUAL(result_a, 22.0);

const auto ec3 = instance.notify(
{
.method = string_t{ method::name },
.params = { object_t{ { "b", true }, { "a", 24.0 } } }
});
BOOST_REQUIRE(!ec3);
BOOST_REQUIRE(std::holds_alternative<bool>(result_b.value()));
BOOST_REQUIRE(std::get<bool>(result_b.value()));
BOOST_REQUIRE_EQUAL(result_a, 24.0);

instance.stop(error::service_stopped);
}

BOOST_AUTO_TEST_CASE(dispatcher__notify__value_optional__expected)
{
dispatcher<mock_value_type_interface> instance{};
using method = mock_value_type_interface::value_optional;
double result_a{};
value_t result_b{};

instance.subscribe([&](const code&, method::tag, double a, const value_t& b)
{
result_a = a;
result_b = b;
});

const auto ec1 = instance.notify(
{
.method = string_t{ method::name },
.params = { array_t{ { 42.0 } } }
});
BOOST_REQUIRE(!ec1);
BOOST_REQUIRE(std::holds_alternative<null_t>(result_b.value()));
BOOST_REQUIRE_EQUAL(result_a, 42.0);

const auto ec2 = instance.notify(
{
.method = string_t{ method::name },
.params = { object_t{ { "a", 22.0 }, { "b", false } } }
});
BOOST_REQUIRE(!ec2);
BOOST_REQUIRE(std::holds_alternative<bool>(result_b.value()));
BOOST_REQUIRE(!std::get<bool>(result_b.value()));
BOOST_REQUIRE_EQUAL(result_a, 22.0);

const auto ec3 = instance.notify(
{
.method = string_t{ method::name },
.params = { object_t{ { "b", true }, { "a", 24.0 } } }
});
BOOST_REQUIRE(!ec3);
BOOST_REQUIRE(std::holds_alternative<bool>(result_b.value()));
BOOST_REQUIRE(std::get<bool>(result_b.value()));
BOOST_REQUIRE_EQUAL(result_a, 24.0);

instance.stop(error::service_stopped);
}

BOOST_AUTO_TEST_CASE(dispatcher__notify__value_nullable__expected)
{
dispatcher<mock_value_type_interface> instance{};
using method = mock_value_type_interface::value_nullable;
double result_a{};
value_option result_b{};

instance.subscribe([&](const code&, method::tag, double a, const value_option& b)
{
result_a = a;
result_b = b;
});

const auto ec1 = instance.notify(
{
.method = string_t{ method::name },
.params = { array_t{ { 42.0 } } }
});
BOOST_REQUIRE(!ec1);
BOOST_REQUIRE(!result_b.has_value());
BOOST_REQUIRE_EQUAL(result_a, 42.0);

const auto ec2 = instance.notify(
{
.method = string_t{ method::name },
.params = { object_t{ { "a", 22.0 }, { "b", false } } }
});
BOOST_REQUIRE(!ec2);
BOOST_REQUIRE(result_b.has_value());
BOOST_REQUIRE(std::holds_alternative<bool>(result_b.value().value()));
BOOST_REQUIRE(!std::get<bool>(result_b.value().value()));
BOOST_REQUIRE_EQUAL(result_a, 22.0);

const auto ec3 = instance.notify(
{
.method = string_t{ method::name },
.params = { object_t{ { "b", true }, { "a", 24.0 } } }
});
BOOST_REQUIRE(!ec3);
BOOST_REQUIRE(result_b.has_value());
BOOST_REQUIRE(std::holds_alternative<bool>(result_b.value().value()));
BOOST_REQUIRE(std::get<bool>(result_b.value().value()));
BOOST_REQUIRE_EQUAL(result_a, 24.0);

instance.stop(error::service_stopped);
}

BOOST_AUTO_TEST_SUITE_END()
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