Start gas and tests

[EVA-2020-02-2.git] / library / tests / test_setup.py

diff --git a/library/tests/test_setup.py b/library/tests/test_setup.py
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..af3ed82d2694956ebacf5b3aa6bf82ad5152c2c5 100644 (file)
--- a/library/tests/test_setup.py
+++ b/library/tests/test_setup.py
@@ -0,0 +1,54 @@
+import sys
+import mock
+from i2cdevice import MockSMBus
+
+
+class SMBusFakeDevice(MockSMBus):
+    def __init__(self, i2c_bus):
+        MockSMBus.__init__(self, i2c_bus)
+        self.regs[0x00:0x01] = 0x0f, 0x00
+
+
+def test_gas_setup():
+    sys.modules['RPi'] = mock.Mock()
+    sys.modules['RPi.GPIO'] = mock.Mock()
+    smbus = mock.Mock()
+    smbus.SMBus = SMBusFakeDevice
+    sys.modules['smbus'] = smbus
+    from envirophatplus import gas
+    gas.setup()
+    gas.setup()
+
+
+def test_gas_read_all():
+    sys.modules['RPi'] = mock.Mock()
+    sys.modules['RPi.GPIO'] = mock.Mock()
+    smbus = mock.Mock()
+    smbus.SMBus = SMBusFakeDevice
+    sys.modules['smbus'] = smbus
+    from envirophatplus import gas
+    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():
+    sys.modules['RPi'] = mock.Mock()
+    sys.modules['RPi.GPIO'] = mock.Mock()
+    smbus = mock.Mock()
+    smbus.SMBus = SMBusFakeDevice
+    sys.modules['smbus'] = smbus
+    from envirophatplus import gas
+
+    assert int(gas.read_oxidising()) == 16641
+    assert int(gas.read_reducing()) == 16727
+    assert int(gas.read_nh3()) == 16813