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test: Add unit test for LTC5594

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This test checks if the correct values are returned for a frequency
within the range of the lookup table and for frequencies above and below
the range.
This commit is contained in:
Martin Anderseck 2026-10-12 14:47:33 +02:00 committed by Frank Dietze
parent eab0f7fe89
commit dd1dbad6e7
2 changed files with 40 additions and 0 deletions
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8
host/tests/CMakeLists.txt
View File

@ -431,6 +431,14 @@ UHD_ADD_NONAPI_TEST(
${UHD_BINARY_DIR}/lib/ic_reg_maps
)
UHD_ADD_NONAPI_TEST(
TARGET ltc5594_test.cpp
EXTRA_SOURCES
${UHD_SOURCE_DIR}/lib/usrp/common/ltc5594.cpp
INCLUDE_DIRS
${UHD_BINARY_DIR}/lib/ic_reg_maps
)
UHD_ADD_NONAPI_TEST(
TARGET adf535x_test.cpp
EXTRA_SOURCES

32
host/tests/ltc5594_test.cpp Normal file
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@ -0,0 +1,32 @@
//
// Copyright 2026 Ettus Research, a National Instruments Brand
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include <uhdlib/usrp/common/ltc5594.hpp>
#include <boost/test/unit_test.hpp>
#include <array>
BOOST_AUTO_TEST_CASE(ltc5594_lo_matching_test)
{
std::array<uint8_t, 24> mock_registers{};
auto mock_poke = [&mock_registers](
uint8_t addr, uint8_t data) { mock_registers.at(addr) = data; };
auto mock_peek = [&mock_registers](uint8_t addr) { return mock_registers.at(addr); };
auto ltc5594 =
ltc5594_iface::make(std::move(mock_poke), std::move(mock_peek), "ltc5594_test");
BOOST_REQUIRE(ltc5594);
ltc5594->set_lo_matching(500e6);
BOOST_CHECK_EQUAL(static_cast<unsigned>(mock_registers[18]), 0x51U);
BOOST_CHECK_EQUAL(static_cast<unsigned>(mock_registers[19]), 0x5fU);
ltc5594->set_lo_matching(100e6);
BOOST_CHECK_EQUAL(static_cast<unsigned>(mock_registers[18]), 0x48U);
BOOST_CHECK_EQUAL(static_cast<unsigned>(mock_registers[19]), 0xe3U);
ltc5594->set_lo_matching(9.1e9);
BOOST_CHECK_EQUAL(static_cast<unsigned>(mock_registers[18]), 0x48U);
BOOST_CHECK_EQUAL(static_cast<unsigned>(mock_registers[19]), 0xe3U);
}