111 lines
2.2 KiB
C++
111 lines
2.2 KiB
C++
// http://docs.platformio.org/en/stable/plus/unit-testing.html
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// Unit test to test opperation of ATmega328 by flashing LED (pin 9) and checking output
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// Requires PlatformIO 3.0
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#include <Arduino.h>
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#include <unity.h>
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#include <SI7021.h>
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SI7021 sensor;
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#ifdef UNIT_TEST
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// void setUp(void) {
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// spiInit();
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// }
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// void tearDown(void) {
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// // clean stuff up here
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// }
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const byte LED =9;
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const byte si7021_address=40;
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void led_state_high(void) {
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digitalWrite(LED, HIGH);
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TEST_ASSERT_EQUAL(digitalRead(LED), HIGH);
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}
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void led_state_low(void) {
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digitalWrite(LED, LOW);
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TEST_ASSERT_EQUAL(digitalRead(LED), LOW);
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}
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void i2c_line_high(void){
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TEST_ASSERT_EQUAL(digitalRead(SCL), HIGH);
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TEST_ASSERT_EQUAL(digitalRead(SDA), HIGH);
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}
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void si7021_exists(void){
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// Scan I2C bus for Si7021
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byte found_address =0;
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byte count = 0;
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for (byte i = 1; i < 120; i++)
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{
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Wire.beginTransmission (i);
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if (Wire.endTransmission () == 0)
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{
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Serial.print (i, HEX);
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found_address = (i);
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count++;
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delay (1);
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}
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}
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TEST_ASSERT_EQUAL_HEX(found_address, si7021_address);
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}
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void si7021_start(void) {
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TEST_ASSERT_EQUAL(sensor.begin(), 1);
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}
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void si7021_read_temp(void) {
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sensor.begin();
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si7021_env data = sensor.getHumidityAndTemperature();
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int temp = data.celsiusHundredths;
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// 21.00 degC = 2100
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// delta, expected, actual
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TEST_ASSERT_INT_WITHIN(6000, 2100, temp);
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}
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void si7021_read_humidity(void) {
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sensor.begin();
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si7021_env data = sensor.getHumidityAndTemperature();
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int humidity = data.humidityBasisPoints;
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// 50.00 RH = 5000
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// delta, expected, actual
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TEST_ASSERT_INT_WITHIN(5000, 5000, humidity);
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}
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void setup() {
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UNITY_BEGIN(); // IMPORTANT LINE!
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// Test LED
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pinMode(LED, OUTPUT);
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RUN_TEST(led_state_high);
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RUN_TEST(led_state_low);
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// Test Sensor
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RUN_TEST(i2c_line_high);
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// I2C lines need to be pulled high for I2C to work
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if (digitalRead(SDA) == HIGH && digitalRead(SCL) == HIGH){
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RUN_TEST(si7021_start);
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RUN_TEST(si7021_read_temp);
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RUN_TEST(si7021_read_humidity);
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}
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}
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void loop() {
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UNITY_END(); // stop unit testing
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}
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#endif
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