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[tmp102] Add comparator alert binary sensor (#20540)

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This commit is contained in:
techdregs
2026-10-11 14:33:06 -10:00
committed by GitHub
parent ce19978cfd
commit 826a7a252a
11 changed files with 265 additions and 11 deletions
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tests/components/tmp102/test_tmp102.cpp
+81
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@@ -47,6 +47,7 @@ class TMP102Test : public ::testing::Test {
protected:
RegisterBus bus_;
TMP102Component chip_;
binary_sensor::BinarySensor alert_;
unsigned publications_{0};
void SetUp() override {
@@ -112,6 +113,83 @@ TEST_F(TMP102Test, WritableConfigurationFields) {
EXPECT_EQ(this->bus_.registers[2], 0x2580);
}
TEST_F(TMP102Test, AlertEntityPreservesHardwareAndUsesObservedPolarity) {
this->chip_.set_alert_binary_sensor(&this->alert_);
this->chip_.setup();
EXPECT_EQ(this->bus_.transactions, 0);
for (uint16_t config : {0x60A0, 0x6080, 0x64A0, 0x6480}) {
this->bus_.registers[1] = config;
this->chip_.update();
run_timers(55);
ASSERT_TRUE(this->alert_.has_state());
EXPECT_EQ(this->alert_.state, bool(config & 0x20) == bool(config & 0x400));
EXPECT_EQ(this->bus_.registers[1], config);
}
EXPECT_EQ(this->bus_.writes, 0);
}
TEST_F(TMP102Test, FailedTemperatureOrAlertReadInvalidatesAlert) {
this->chip_.set_alert_binary_sensor(&this->alert_);
this->chip_.setup();
this->chip_.update();
run_timers(55);
ASSERT_TRUE(this->alert_.has_state());
for (int reg : {0, 1}) {
this->bus_.fail_read = reg;
this->chip_.update();
run_timers(55);
EXPECT_TRUE(this->chip_.status_has_warning());
EXPECT_FALSE(this->alert_.has_state());
this->bus_.fail_read = -1;
this->chip_.update();
run_timers(55);
EXPECT_FALSE(this->chip_.status_has_warning());
EXPECT_TRUE(this->alert_.has_state());
}
}
TEST_F(TMP102Test, ConfiguredAlertUsesObservedPolarity) {
this->chip_.set_alert_binary_sensor(&this->alert_);
for (uint16_t config : {0x0080, 0x00A0, 0x0480, 0x04A0}) {
this->configure(config & ~0x0020);
this->chip_.setup();
this->bus_.registers[1] = config;
this->chip_.update();
ASSERT_TRUE(this->alert_.has_state());
EXPECT_EQ(this->alert_.state, bool(config & 0x0020) == bool(config & 0x0400));
EXPECT_FALSE(this->chip_.status_has_warning());
}
}
TEST_F(TMP102Test, ConfiguredAlertInvalidatesDuringRecoveryAndRepublishes) {
this->chip_.set_alert_binary_sensor(&this->alert_);
this->configure(0x0090, 0x2D00, 0x2A80);
this->chip_.setup();
this->chip_.update();
ASSERT_TRUE(this->alert_.has_state());
this->bus_.registers = {0x1900, 0x60A0, 0x4B00, 0x5000};
this->chip_.update();
EXPECT_FALSE(this->alert_.has_state());
EXPECT_TRUE(this->chip_.status_has_warning());
this->chip_.update();
EXPECT_TRUE(this->alert_.has_state());
EXPECT_FALSE(this->chip_.status_has_warning());
}
TEST_F(TMP102Test, OneShotPublishesAlertAfterDelayedRead) {
this->chip_.set_alert_binary_sensor(&this->alert_);
this->configure(0x0180);
this->chip_.setup();
this->chip_.update();
EXPECT_FALSE(this->alert_.has_state());
run_timers(45);
EXPECT_TRUE(this->alert_.has_state());
EXPECT_TRUE(this->alert_.state);
EXPECT_FALSE(this->chip_.status_has_warning());
}
TEST_F(TMP102Test, RestoresRegistersAfterChipOnlyResetBeforePublishing) {
this->configure(0x0090, 0x2D00, 0x2A80);
this->chip_.setup();
@@ -170,13 +248,16 @@ TEST_F(TMP102Test, ReadOnlyConfigurationBitsDoNotTriggerRecovery) {
}
TEST_F(TMP102Test, OneShotTriggerFailureSetsWarning) {
this->chip_.set_alert_binary_sensor(&this->alert_);
this->configure(0x0180);
this->chip_.setup();
this->alert_.publish_state(false);
this->bus_.fail_write = 1;
this->chip_.update();
run_timers(45);
EXPECT_EQ(this->publications_, 0);
EXPECT_TRUE(this->chip_.status_has_warning());
EXPECT_FALSE(this->alert_.has_state());
}
TEST_F(TMP102Test, OneShotRestartsPendingReadAndReselectsTemperature) {