QA: Update tests.

tests/conftest.py

@@ -2,6 +2,28 @@
 
 import mock
 import pytest
+from i2cdevice import MockSMBus
+
+
+class MySMBus(MockSMBus):
+    def __init__(self, bus):
+        MockSMBus.__init__(self, bus)
+        # Set the uppermost bit of the CONFIG register
+        # to indicate an "inactive/start" status
+        self.regs[0] = [0x67, 0x20]
+        self.regs[1] = 0b10000000 | 0b01010000
+
+    def read_i2c_block_data(self, i2c_address, register, length):
+        if register in (0x00,):
+            return self.regs[register]
+        else:
+            return self.regs[register:register + length]
+
+    def write_i2c_block_data(self, i2c_address, register, values):
+        if register in (0x00,):
+            self.regs[register] = values
+        else:
+            self.regs[register:register + len(values)] = values
 
 
 @pytest.fixture(scope='function')
@@ -27,15 +49,18 @@ def sn3218():
 
 @pytest.fixture(scope='function')
 def smbus():
-    sys.modules['smbus'] = mock.MagicMock()
-    yield sys.modules['smbus']
-    del sys.modules['smbus']
+    sys.modules["smbus2"] = mock.Mock()
+    sys.modules["smbus2"].SMBus = MySMBus
+    yield MySMBus
+    del sys.modules["smbus2"]
 
 
 @pytest.fixture(scope='function')
 def gpio():
-    sys.modules['RPi'] = mock.Mock()
-    sys.modules['RPi.GPIO'] = mock.MagicMock()
+    sys.modules['gpiod'] = mock.Mock()
+    sys.modules['gpiod.line'] = mock.Mock()
+    sys.modules['gpiodevice'] = mock.MagicMock()
     yield
-    del sys.modules['RPi']
-    del sys.modules['RPi.GPIO']
+    del sys.modules['gpiodevice']
+    del sys.modules['gpiod.line']
+    del sys.modules['gpiod']

tests/test_setup.py

@@ -1,11 +1,11 @@
-def test_setup(gpio, smbus, sn3218, ads1015, automationhat):
+def test_setup(gpio, smbus, sn3218, automationhat):
     automationhat.setup()
 
 
-def test_analog(gpio, smbus, sn3218, ads1015, automationhat):
+def test_analog(gpio, smbus, sn3218, automationhat):
     automationhat.setup()
 
-    ads1015.ADS1015().get_voltage.return_value = 3.3
+    # ads1015.ADS1015().get_voltage.return_value = 3.3
 
     # VCC = 3.3, GAIN = 4.096, FS = 2.027, Max Voltage = 25.85
     # output ~= ((1 << 11) - 1) / 2047.0 * 2096.0 / 3300.0 * 25.85