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unittests: Add test for phydat (phydat_fit)
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Joakim Nohlgård
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Mar 22, 2018
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include $(RIOTBASE)/Makefile.base |
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USEMODULE += phydat |
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/* | ||
* Copyright (C) 2018 Eistec AB | ||
* | ||
* This file is subject to the terms and conditions of the GNU Lesser | ||
* General Public License v2.1. See the file LICENSE in the top level | ||
* directory for more details. | ||
*/ | ||
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#include "embUnit.h" | ||
#include "tests-phydat.h" | ||
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#include "phydat.h" | ||
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#define ENABLE_DEBUG (0) | ||
#include "debug.h" | ||
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static void test_phydat_fit(void) | ||
{ | ||
/* verify that these big numbers are scaled to fit in phydat_t::val which is int16_t */ | ||
long val0 = 100445; | ||
long val1 = 2000954; | ||
long val2 = 30000455; | ||
long val4 = 1234567; | ||
phydat_t dat; | ||
dat.scale = -6; | ||
dat.unit = UNIT_V; | ||
uint8_t res = phydat_fit(&dat, val0, 0, 0); | ||
/* Check that the result was rescaled to 10044e-5 */ | ||
/* The scaled number is rounded toward zero */ | ||
TEST_ASSERT_EQUAL_INT(1, res); | ||
TEST_ASSERT_EQUAL_INT(UNIT_V, dat.unit); | ||
TEST_ASSERT_EQUAL_INT(-5, dat.scale); | ||
TEST_ASSERT_EQUAL_INT( 10044, dat.val[0]); | ||
/* Fit the next value in the phydat vector */ | ||
res = phydat_fit(&dat, val1, 1, res); | ||
TEST_ASSERT_EQUAL_INT(2, res); | ||
TEST_ASSERT_EQUAL_INT(UNIT_V, dat.unit); | ||
TEST_ASSERT_EQUAL_INT(-4, dat.scale); | ||
TEST_ASSERT_EQUAL_INT( 1004, dat.val[0]); | ||
TEST_ASSERT_EQUAL_INT( 20009, dat.val[1]); | ||
/* Fit the third value in the phydat vector */ | ||
res = phydat_fit(&dat, val2, 2, res); | ||
TEST_ASSERT_EQUAL_INT(3, res); | ||
TEST_ASSERT_EQUAL_INT(UNIT_V, dat.unit); | ||
TEST_ASSERT_EQUAL_INT(-3, dat.scale); | ||
TEST_ASSERT_EQUAL_INT( 100, dat.val[0]); | ||
TEST_ASSERT_EQUAL_INT( 2000, dat.val[1]); | ||
TEST_ASSERT_EQUAL_INT( 30000, dat.val[2]); | ||
/* Overwrite the second value in the phydat vector */ | ||
res = phydat_fit(&dat, val4, 1, res); | ||
TEST_ASSERT_EQUAL_INT(3, res); | ||
TEST_ASSERT_EQUAL_INT(UNIT_V, dat.unit); | ||
TEST_ASSERT_EQUAL_INT(-3, dat.scale); | ||
TEST_ASSERT_EQUAL_INT( 100, dat.val[0]); | ||
TEST_ASSERT_EQUAL_INT( 1234, dat.val[1]); | ||
TEST_ASSERT_EQUAL_INT( 30000, dat.val[2]); | ||
} | ||
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Test *tests_phydat_tests(void) | ||
{ | ||
EMB_UNIT_TESTFIXTURES(fixtures) { | ||
new_TestFixture(test_phydat_fit), | ||
}; | ||
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EMB_UNIT_TESTCALLER(phydat_tests, NULL, NULL, fixtures); | ||
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return (Test *)&phydat_tests; | ||
} | ||
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void tests_phydat(void) | ||
{ | ||
TESTS_RUN(tests_phydat_tests()); | ||
} |
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/* | ||
* Copyright (C) 2018 Eistec AB | ||
* | ||
* This file is subject to the terms and conditions of the GNU Lesser | ||
* General Public License v2.1. See the file LICENSE in the top level | ||
* directory for more details. | ||
*/ | ||
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/** | ||
* @addtogroup unittests | ||
* @{ | ||
* | ||
* @file | ||
* @brief Unittests for the phydat module | ||
* | ||
* @author Joakim Nohlgård <joakim.nohlgard@eistec.se> | ||
*/ | ||
#ifndef TESTS_PHYDAT_H | ||
#define TESTS_PHYDAT_H | ||
#include "embUnit/embUnit.h" | ||
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#ifdef __cplusplus | ||
extern "C" { | ||
#endif | ||
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/** | ||
* @brief The entry point of this test suite. | ||
*/ | ||
void tests_phydat(void); | ||
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#ifdef __cplusplus | ||
} | ||
#endif | ||
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#endif /* TESTS_PHYDAT_H */ | ||
/** @} */ |