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Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com> Co-authored-by: J. Nick Koston <nick@home-assistant.io> Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
#include <gtest/gtest.h>
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#include <cmath>
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#include "esphome/components/sensor/filter.h"
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#include "esphome/components/sensor/sensor.h"
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namespace esphome::sensor::testing {
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// 40 % read 7.3 °C warm at a true 25 °C, in single precision Magnus arithmetic
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static constexpr float CORRECTED = 61.13f;
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struct RhFixture {
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Sensor temperature;
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RHCorrectionFilter filter;
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RhFixture(float (*offset)(), bool use_fahrenheit = false) : filter(offset, &this->temperature, use_fahrenheit) {}
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};
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TEST(RHCorrectionFilter, CorrectsForTheOffset) {
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RhFixture f([]() -> float { return -7.3f; });
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f.temperature.publish_state(25.0f);
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EXPECT_NEAR(f.filter.new_value(40.0f).value_or(NAN), CORRECTED, 0.05f);
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}
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TEST(RHCorrectionFilter, PositiveOffsetLowersTheHumidity) {
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RhFixture f([]() -> float { return 7.3f; });
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f.temperature.publish_state(25.0f);
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EXPECT_LT(f.filter.new_value(40.0f).value_or(NAN), 40.0f);
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}
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TEST(RHCorrectionFilter, FahrenheitReadingsGiveTheSameResult) {
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// 77 °F is 25 °C and -13.14 °F is -7.3 °C of offset
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RhFixture f([]() -> float { return -13.14f; }, true);
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f.temperature.publish_state(77.0f);
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EXPECT_NEAR(f.filter.new_value(40.0f).value_or(NAN), CORRECTED, 0.05f);
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}
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TEST(RHCorrectionFilter, ClampsToOneHundredPercent) {
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RhFixture f([]() -> float { return -7.3f; });
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f.temperature.publish_state(25.0f);
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EXPECT_FLOAT_EQ(f.filter.new_value(90.0f).value_or(NAN), 100.0f);
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}
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TEST(RHCorrectionFilter, PassesThroughWithoutAUsableTemperature) {
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RhFixture f([]() -> float { return -7.3f; });
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// No temperature reading yet
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EXPECT_FLOAT_EQ(f.filter.new_value(40.0f).value_or(NAN), 40.0f);
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// Out of the -40..50 °C band
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f.temperature.publish_state(60.0f);
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EXPECT_FLOAT_EQ(f.filter.new_value(40.0f).value_or(NAN), 40.0f);
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// The band also covers the reconstructed enclosure temperature
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f.temperature.publish_state(45.0f);
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EXPECT_FLOAT_EQ(f.filter.new_value(40.0f).value_or(NAN), 40.0f);
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}
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TEST(RHCorrectionFilter, DropsTheUpdateOnNaN) {
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RhFixture f([]() -> float { return -7.3f; });
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f.temperature.publish_state(NAN);
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EXPECT_FALSE(f.filter.new_value(40.0f).has_value());
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RhFixture nan_offset([]() -> float { return NAN; });
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nan_offset.temperature.publish_state(25.0f);
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EXPECT_FALSE(nan_offset.filter.new_value(40.0f).has_value());
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}
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} // namespace esphome::sensor::testing
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