src/test/unit/baro_bmp280_unittest.cc.txt

   1 /*
   2  * This file is part of Cleanflight.
   3  *
   4  * Cleanflight is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * Cleanflight is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 #include <stdint.h>
  18
  19 extern "C" {
  20
  21     void bmp280_calculate(int32_t *pressure, int32_t *temperature);
  22     extern uint32_t bmp280_up;
  23     extern uint32_t bmp280_ut;
  24
  25 typedef struct bmp280_calib_param_s {
  26     uint16_t dig_T1; /* calibration T1 data */
  27     int16_t dig_T2; /* calibration T2 data */
  28     int16_t dig_T3; /* calibration T3 data */
  29     uint16_t dig_P1; /* calibration P1 data */
  30     int16_t dig_P2; /* calibration P2 data */
  31     int16_t dig_P3; /* calibration P3 data */
  32     int16_t dig_P4; /* calibration P4 data */
  33     int16_t dig_P5; /* calibration P5 data */
  34     int16_t dig_P6; /* calibration P6 data */
  35     int16_t dig_P7; /* calibration P7 data */
  36     int16_t dig_P8; /* calibration P8 data */
  37     int16_t dig_P9; /* calibration P9 data */
  38     int32_t t_fine; /* calibration t_fine data */
  39 } bmp280_calib_param_t;
  40
  41     bmp280_calib_param_t bmp280_cal;
  42 }
  43
  44
  45 #include "unittest_macros.h"
  46 #include "gtest/gtest.h"
  47
  48
  49 TEST(baroBmp280Test, TestBmp280Calculate)
  50 {
  51
  52     // given
  53     int32_t pressure, temperature;
  54     bmp280_up = 415148; // Digital pressure value
  55     bmp280_ut = 519888; // Digital temperature value
  56
  57     // and
  58     bmp280_cal.dig_T1 = 27504;
  59     bmp280_cal.dig_T2 = 26435;
  60     bmp280_cal.dig_T3 = -1000;
  61     bmp280_cal.dig_P1 = 36477;
  62     bmp280_cal.dig_P2 = -10685;
  63     bmp280_cal.dig_P3 = 3024;
  64     bmp280_cal.dig_P4 = 2855;
  65     bmp280_cal.dig_P5 = 140;
  66     bmp280_cal.dig_P6 = -7;
  67     bmp280_cal.dig_P7 = 15500;
  68     bmp280_cal.dig_P8 = -14600;
  69     bmp280_cal.dig_P9 = 6000;
  70
  71     // when
  72     bmp280_calculate(&pressure, &temperature);
  73
  74     // then
  75     EXPECT_EQ(100653, pressure); // 100653 Pa
  76     EXPECT_EQ(2508, temperature); // 25.08 degC
  77
  78 }
  79
  80 TEST(baroBmp280Test, TestBmp280CalculateHighP)
  81 {
  82
  83     // given
  84     int32_t pressure, temperature;
  85     bmp280_up = 215148; // Digital pressure value
  86     bmp280_ut = 519888; // Digital temperature value
  87
  88     // and
  89     bmp280_cal.dig_T1 = 27504;
  90     bmp280_cal.dig_T2 = 26435;
  91     bmp280_cal.dig_T3 = -1000;
  92     bmp280_cal.dig_P1 = 36477;
  93     bmp280_cal.dig_P2 = -10685;
  94     bmp280_cal.dig_P3 = 3024;
  95     bmp280_cal.dig_P4 = 2855;
  96     bmp280_cal.dig_P5 = 140;
  97     bmp280_cal.dig_P6 = -7;
  98     bmp280_cal.dig_P7 = 15500;
  99     bmp280_cal.dig_P8 = -14600;
 100     bmp280_cal.dig_P9 = 6000;
 101
 102     // when
 103     bmp280_calculate(&pressure, &temperature);
 104
 105     // then
 106     EXPECT_EQ(135382, pressure); // 135385 Pa
 107     EXPECT_EQ(2508, temperature); // 25.08 degC
 108
 109 }
 110
 111 TEST(baroBmp280Test, TestBmp280CalculateZeroP)
 112 {
 113
 114     // given
 115     int32_t pressure, temperature;
 116     bmp280_up = 415148; // Digital pressure value
 117     bmp280_ut = 519888; // Digital temperature value
 118
 119     // and
 120     bmp280_cal.dig_T1 = 27504;
 121     bmp280_cal.dig_T2 = 26435;
 122     bmp280_cal.dig_T3 = -1000;
 123     bmp280_cal.dig_P1 = 0;
 124     bmp280_cal.dig_P2 = -10685;
 125     bmp280_cal.dig_P3 = 3024;
 126     bmp280_cal.dig_P4 = 2855;
 127     bmp280_cal.dig_P5 = 140;
 128     bmp280_cal.dig_P6 = -7;
 129     bmp280_cal.dig_P7 = 15500;
 130     bmp280_cal.dig_P8 = -14600;
 131     bmp280_cal.dig_P9 = 6000;
 132
 133     // when
 134     bmp280_calculate(&pressure, &temperature);
 135
 136     // then
 137     EXPECT_EQ(0, pressure); // P1=0 trips pressure to 0 Pa, avoiding division by zero
 138     EXPECT_EQ(2508, temperature); // 25.08 degC
 139
 140 }
 141
 142 // STUBS
 143
 144 extern "C" {
 145
 146     void delay(uint32_t) {}
 147     bool i2cWrite(uint8_t, uint8_t, uint8_t) {
 148         return 1;
 149     }
 150     bool i2cRead(uint8_t, uint8_t, uint8_t, uint8_t) {
 151         return 1;
 152     }
 153
 154 }