esp-idf/examples/peripherals/i2c/i2c_tools/example_test.py

from __future__ import print_function

import ttfw_idf

EXPECT_TIMEOUT = 20


@ttfw_idf.idf_example_test(env_tag='Example_I2C_CCS811_SENSOR')
def test_i2ctools_example(env, extra_data):
    # Get device under test, flash and start example. "i2ctool" must be defined in EnvConfig
    dut = env.get_dut('i2ctools', 'examples/peripherals/i2c/i2c_tools', dut_class=ttfw_idf.ESP32DUT)
    dut.start_app()
    dut.expect('i2c-tools>', timeout=EXPECT_TIMEOUT)
    # Get i2c address
    dut.write('i2cdetect')
    dut.expect('5b', timeout=EXPECT_TIMEOUT)
    # Get chip ID
    dut.write('i2cget -c 0x5b -r 0x20 -l 1')
    dut.expect('0x81', timeout=EXPECT_TIMEOUT)
    # Reset sensor
    dut.write('i2cset -c 0x5b -r 0xFF 0x11 0xE5 0x72 0x8A')
    dut.expect('OK', timeout=EXPECT_TIMEOUT)
    # Get status
    dut.write('i2cget -c 0x5b -r 0x00 -l 1')
    dut.expect_any('0x10', timeout=EXPECT_TIMEOUT)
    # Change work mode
    dut.write('i2cset -c 0x5b -r 0xF4')
    dut.expect('OK', timeout=EXPECT_TIMEOUT)
    dut.write('i2cset -c 0x5b -r 0x01 0x10')
    dut.expect('OK', timeout=EXPECT_TIMEOUT)
    # Get new status
    dut.write('i2cget -c 0x5b -r 0x00 -l 1')
    dut.expect_any('0x98', '0x90', timeout=EXPECT_TIMEOUT)


if __name__ == '__main__':
    test_i2ctools_example()