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import esphome.codegen as cg
from esphome.types import ConfigType
from tests.testing_helpers import ComponentManifestOverride
def override_manifest(manifest: ComponentManifestOverride) -> None:
# One empty config entry so to_code runs and compiles the PG/GPO switch path.
manifest.multi_conf = False
manifest.dependencies = manifest.dependencies + ["i2c", "switch"]
async def to_code(config: ConfigType) -> None:
cg.add_define("USE_BQ25186_PG_GPO")
manifest.to_code = to_code
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#include <gtest/gtest.h>
#include <array>
#include "esphome/components/bq25186/bq25186.h"
#include "esphome/components/bq25186/bq25186_switch.h"
namespace esphome::bq25186::testing {
static constexpr uint8_t ADDRESS = 0x6A;
static constexpr uint8_t SYS_REG_OTHER_BITS = 0x0F;
// The chip's registers behind an address pointer that moves on after every byte; writes can be made to fail.
class RegisterBus final : public i2c::I2CBus {
public:
i2c::ErrorCode write_readv(uint8_t address, const uint8_t *data, size_t size, uint8_t *out,
size_t out_size) override {
EXPECT_EQ(address, ADDRESS);
if (size > 1 && this->fail_writes)
return i2c::ERROR_NOT_ACKNOWLEDGED;
if (size != 0) {
this->pointer_ = data[0];
for (size_t i = 1; i < size; i++)
this->registers[this->next_()] = data[i];
}
for (size_t i = 0; i < out_size; i++)
out[i] = this->registers[this->next_()];
return i2c::ERROR_OK;
}
std::array<uint8_t, BQ25186_STATUS_REGISTER_COUNT> registers{};
bool fail_writes{false};
protected:
size_t next_() { return this->pointer_++ % this->registers.size(); }
uint8_t pointer_{0};
};
class BQ25186PgGpoTest : public ::testing::Test {
protected:
void SetUp() override {
this->bus_.registers[BQ25186_REG_MASK_ID] = 0x01; // the BQ25186 device id
this->bus_.registers[BQ25186_REG_SYS_REG] = SYS_REG_OTHER_BITS;
this->hub_.set_i2c_bus(&this->bus_);
this->hub_.set_i2c_address(ADDRESS);
this->switch_.set_parent(&this->hub_);
this->switch_.set_restore_mode(switch_::SWITCH_RESTORE_DISABLED);
this->hub_.set_pg_gpo_switch(&this->switch_);
}
bool level_() const { return (this->bus_.registers[BQ25186_REG_SYS_REG] & BQ25186_SYS_REG_PG_GPO_LEVEL) != 0; }
uint8_t other_bits_() const { return this->bus_.registers[BQ25186_REG_SYS_REG] & ~BQ25186_SYS_REG_PG_GPO_LEVEL; }
RegisterBus bus_;
BQ25186Component hub_;
BQ25186PgGpoSwitch switch_;
};
TEST_F(BQ25186PgGpoTest, TurnOnSetsTheLevelAndPublishes) {
this->switch_.turn_on();
EXPECT_TRUE(this->level_());
EXPECT_EQ(this->other_bits_(), SYS_REG_OTHER_BITS);
EXPECT_TRUE(this->switch_.has_state());
EXPECT_TRUE(this->switch_.state);
}
TEST_F(BQ25186PgGpoTest, TurnOffClearsTheLevelAndPublishes) {
this->bus_.registers[BQ25186_REG_SYS_REG] |= BQ25186_SYS_REG_PG_GPO_LEVEL;
this->switch_.publish_state(true);
this->switch_.turn_off();
EXPECT_FALSE(this->level_());
EXPECT_EQ(this->other_bits_(), SYS_REG_OTHER_BITS);
EXPECT_FALSE(this->switch_.state);
}
TEST_F(BQ25186PgGpoTest, FailedWriteLeavesTheStateUnpublished) {
this->bus_.fail_writes = true;
this->switch_.turn_on();
EXPECT_FALSE(this->level_());
EXPECT_FALSE(this->switch_.has_state());
}
TEST_F(BQ25186PgGpoTest, FailedWriteKeepsThePreviousState) {
// Start from on, so a reset to the default off state would show
this->bus_.registers[BQ25186_REG_SYS_REG] |= BQ25186_SYS_REG_PG_GPO_LEVEL;
this->switch_.publish_state(true);
this->bus_.fail_writes = true;
this->switch_.turn_off();
EXPECT_TRUE(this->level_());
EXPECT_TRUE(this->switch_.state);
}
TEST_F(BQ25186PgGpoTest, InvertedSwitchDrivesTheOppositeLevel) {
this->switch_.set_inverted(true);
this->switch_.turn_on();
EXPECT_FALSE(this->level_());
EXPECT_TRUE(this->switch_.state);
this->switch_.turn_off();
EXPECT_TRUE(this->level_());
EXPECT_FALSE(this->switch_.state);
}
TEST_F(BQ25186PgGpoTest, SetupWritesTheRestoredLevel) {
this->switch_.set_restore_mode(switch_::SWITCH_ALWAYS_ON);
this->hub_.setup();
EXPECT_TRUE(this->level_());
EXPECT_NE(this->bus_.registers[BQ25186_REG_VBAT_CTRL] & BQ25186_VBAT_CTRL_PG_MODE, 0);
EXPECT_TRUE(this->switch_.state);
}
TEST_F(BQ25186PgGpoTest, SetupWritesTheRestoredLevelInverted) {
this->bus_.registers[BQ25186_REG_SYS_REG] |= BQ25186_SYS_REG_PG_GPO_LEVEL;
this->switch_.set_restore_mode(switch_::SWITCH_ALWAYS_ON);
this->switch_.set_inverted(true);
this->hub_.setup();
EXPECT_FALSE(this->level_());
EXPECT_TRUE(this->switch_.state);
}
TEST_F(BQ25186PgGpoTest, SetupWithoutRestoreTakesTheChipLevel) {
this->bus_.registers[BQ25186_REG_SYS_REG] |= BQ25186_SYS_REG_PG_GPO_LEVEL;
this->hub_.setup();
EXPECT_TRUE(this->level_());
EXPECT_TRUE(this->switch_.state);
}
TEST_F(BQ25186PgGpoTest, SetupWithoutRestoreTakesTheChipLevelInverted) {
this->bus_.registers[BQ25186_REG_SYS_REG] |= BQ25186_SYS_REG_PG_GPO_LEVEL;
this->switch_.set_inverted(true);
this->hub_.setup();
EXPECT_TRUE(this->level_());
EXPECT_FALSE(this->switch_.state);
}
} // namespace esphome::bq25186::testing