| 1 | import sys |
| 2 | import mock |
| 3 | from i2cdevice import MockSMBus |
| 4 | |
| 5 | |
| 6 | class SMBusFakeDevice(MockSMBus): |
| 7 | def __init__(self, i2c_bus): |
| 8 | MockSMBus.__init__(self, i2c_bus) |
| 9 | self.regs[0x00:0x01] = 0x0f, 0x00 |
| 10 | |
| 11 | |
| 12 | def test_gas_setup(): |
| 13 | sys.modules['RPi'] = mock.Mock() |
| 14 | sys.modules['RPi.GPIO'] = mock.Mock() |
| 15 | smbus = mock.Mock() |
| 16 | smbus.SMBus = SMBusFakeDevice |
| 17 | sys.modules['smbus'] = smbus |
| 18 | from enviroplus import gas |
| 19 | gas._is_setup = False |
| 20 | gas.setup() |
| 21 | gas.setup() |
| 22 | |
| 23 | |
| 24 | def test_gas_read_all(): |
| 25 | sys.modules['RPi'] = mock.Mock() |
| 26 | sys.modules['RPi.GPIO'] = mock.Mock() |
| 27 | smbus = mock.Mock() |
| 28 | smbus.SMBus = SMBusFakeDevice |
| 29 | sys.modules['smbus'] = smbus |
| 30 | from enviroplus import gas |
| 31 | gas._is_setup = False |
| 32 | result = gas.read_all() |
| 33 | |
| 34 | assert type(result.oxidising) == float |
| 35 | assert int(result.oxidising) == 16641 |
| 36 | |
| 37 | assert type(result.reducing) == float |
| 38 | assert int(result.reducing) == 16727 |
| 39 | |
| 40 | assert type(result.nh3) == float |
| 41 | assert int(result.nh3) == 16813 |
| 42 | |
| 43 | assert "Oxidising" in str(result) |
| 44 | |
| 45 | |
| 46 | def test_gas_read_each(): |
| 47 | sys.modules['RPi'] = mock.Mock() |
| 48 | sys.modules['RPi.GPIO'] = mock.Mock() |
| 49 | smbus = mock.Mock() |
| 50 | smbus.SMBus = SMBusFakeDevice |
| 51 | sys.modules['smbus'] = smbus |
| 52 | from enviroplus import gas |
| 53 | gas._is_setup = False |
| 54 | |
| 55 | assert int(gas.read_oxidising()) == 16641 |
| 56 | assert int(gas.read_reducing()) == 16727 |
| 57 | assert int(gas.read_nh3()) == 16813 |
| 58 | |
| 59 | |
| 60 | def test_gas_read_adc(): |
| 61 | sys.modules['RPi'] = mock.Mock() |
| 62 | sys.modules['RPi.GPIO'] = mock.Mock() |
| 63 | smbus = mock.Mock() |
| 64 | smbus.SMBus = SMBusFakeDevice |
| 65 | sys.modules['smbus'] = smbus |
| 66 | from enviroplus import gas |
| 67 | gas._is_setup = False |
| 68 | |
| 69 | gas.enable_adc(True) |
| 70 | gas.set_adc_gain(2.048) |
| 71 | assert gas.read_adc() == 0.255 |
| 72 | |
| 73 | |
| 74 | def test_gas_read_adc_default_gain(): |
| 75 | sys.modules['RPi'] = mock.Mock() |
| 76 | sys.modules['RPi.GPIO'] = mock.Mock() |
| 77 | smbus = mock.Mock() |
| 78 | smbus.SMBus = SMBusFakeDevice |
| 79 | sys.modules['smbus'] = smbus |
| 80 | from enviroplus import gas |
| 81 | gas._is_setup = False |
| 82 | |
| 83 | gas.enable_adc(True) |
| 84 | assert gas.read_adc() == 0.255 |
| 85 | |
| 86 | |
| 87 | def test_gas_read_adc_str(): |
| 88 | sys.modules['RPi'] = mock.Mock() |
| 89 | sys.modules['RPi.GPIO'] = mock.Mock() |
| 90 | smbus = mock.Mock() |
| 91 | smbus.SMBus = SMBusFakeDevice |
| 92 | sys.modules['smbus'] = smbus |
| 93 | from enviroplus import gas |
| 94 | gas._is_setup = False |
| 95 | |
| 96 | gas.enable_adc(True) |
| 97 | gas.set_adc_gain(2.048) |
| 98 | assert 'ADC' in str(gas.read_all()) |