+import sys
+import mock
+
+
+def test_gas_setup(GPIO, smbus):
+ from enviroplus import gas
+ gas._is_setup = False
+ gas.setup()
+ gas.setup()
+
+
+def test_gas_read_all(GPIO, smbus):
+ from enviroplus import gas
+ gas._is_setup = False
+ result = gas.read_all()
+
+ assert type(result.oxidising) == float
+ assert int(result.oxidising) == 16641
+
+ assert type(result.reducing) == float
+ assert int(result.reducing) == 16727
+
+ assert type(result.nh3) == float
+ assert int(result.nh3) == 16813
+
+ assert "Oxidising" in str(result)
+
+
+def test_gas_read_each(GPIO, smbus):
+ from enviroplus import gas
+ gas._is_setup = False
+
+ assert int(gas.read_oxidising()) == 16641
+ assert int(gas.read_reducing()) == 16727
+ assert int(gas.read_nh3()) == 16813
+
+
+def test_gas_read_adc(GPIO, smbus):
+ from enviroplus import gas
+ gas._is_setup = False
+
+ gas.enable_adc(True)
+ gas.set_adc_gain(2.048)
+ assert gas.read_adc() == 0.255
+
+
+def test_gas_read_adc_default_gain(GPIO, smbus):
+ from enviroplus import gas
+ gas._is_setup = False
+
+ gas.enable_adc(True)
+ assert gas.read_adc() == 0.255
+
+
+def test_gas_read_adc_str(GPIO, smbus):
+ from enviroplus import gas
+ gas._is_setup = False
+
+ gas.enable_adc(True)
+ gas.set_adc_gain(2.048)
+ assert 'ADC' in str(gas.read_all())