Moving libs into separate own directory

7 files changed, 814 insertions, 0 deletions

diff --git a/lib/Adafruit_Python_GPIO/tests/MockGPIO.py b/lib/Adafruit_Python_GPIO/tests/MockGPIO.py
new file mode 100644
index 0000000..d3dce13
--- /dev/null
+++ b/lib/Adafruit_Python_GPIO/tests/MockGPIO.py
@@ -0,0 +1,40 @@
+# Copyright (c) 2014 Adafruit Industries
+# Author: Tony DiCola
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+import Adafruit_GPIO as GPIO
+
+
+class MockGPIO(GPIO.BaseGPIO):
+    def __init__(self):
+        self.pin_mode = {}
+        self.pin_written = {}
+        self.pin_read = {}
+
+    def setup(self, pin, mode):
+        self.pin_mode[pin] = mode
+
+    def output(self, pin, bit):
+        self.pin_written.setdefault(pin, []).append(1 if bit else 0)
+
+    def input(self, pin):
+        if pin not in self.pin_read:
+            raise RuntimeError('No mock GPIO data to read for pin {0}'.format(pin))
+        return self.pin_read[pin].pop(0) == 1
diff --git a/lib/Adafruit_Python_GPIO/tests/__init__.py b/lib/Adafruit_Python_GPIO/tests/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/lib/Adafruit_Python_GPIO/tests/__init__.py
diff --git a/lib/Adafruit_Python_GPIO/tests/test_GPIO.py b/lib/Adafruit_Python_GPIO/tests/test_GPIO.py
new file mode 100644
index 0000000..24c51a6
--- /dev/null
+++ b/lib/Adafruit_Python_GPIO/tests/test_GPIO.py
@@ -0,0 +1,228 @@
+# Copyright (c) 2014 Adafruit Industries
+# Author: Tony DiCola
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+import unittest
+
+from mock import Mock, patch
+
+import Adafruit_GPIO as GPIO
+import Adafruit_GPIO.SPI as SPI
+import Adafruit_GPIO.Platform as Platform
+
+from MockGPIO import MockGPIO
+
+
+class TestBaseGPIO(unittest.TestCase):
+    def test_set_high_and_set_low(self):
+        gpio = MockGPIO()
+        gpio.set_high(1)
+        gpio.set_low(1)
+        self.assertDictEqual(gpio.pin_written, {1: [1, 0]})
+
+    def test_is_high_and_is_low(self):
+        gpio = MockGPIO()
+        gpio.pin_read[1] = [0, 0, 1, 1]
+        self.assertTrue(gpio.is_low(1))
+        self.assertFalse(gpio.is_high(1))
+        self.assertFalse(gpio.is_low(1))
+        self.assertTrue(gpio.is_high(1))
+
+    def test_output_pins(self):
+        gpio = MockGPIO()
+        gpio.output_pins({0: True, 1: False, 7: True})
+        self.assertDictEqual(gpio.pin_written, {0: [1], 1: [0], 7: [1]})
+
+
+class TestRPiGPIOAdapter(unittest.TestCase):
+    def test_setup(self):
+        rpi_gpio = Mock()
+        adapter = GPIO.RPiGPIOAdapter(rpi_gpio)
+        adapter.setup(1, GPIO.OUT)
+        rpi_gpio.setup.assert_called_with(1, rpi_gpio.OUT, pull_up_down=rpi_gpio.PUD_OFF)
+        adapter.setup(1, GPIO.IN)
+        rpi_gpio.setup.assert_called_with(1, rpi_gpio.IN, pull_up_down=rpi_gpio.PUD_OFF)
+        adapter.setup(1, GPIO.IN, GPIO.PUD_DOWN)
+        rpi_gpio.setup.assert_called_with(1, rpi_gpio.IN, pull_up_down=rpi_gpio.PUD_DOWN)
+        adapter.setup(1, GPIO.IN, GPIO.PUD_UP)
+        rpi_gpio.setup.assert_called_with(1, rpi_gpio.IN, pull_up_down=rpi_gpio.PUD_UP)
+
+    def test_output(self):
+        rpi_gpio = Mock()
+        adapter = GPIO.RPiGPIOAdapter(rpi_gpio)
+        adapter.output(1, True)
+        rpi_gpio.output.assert_called_with(1, True)
+        adapter.output(1, False)
+        rpi_gpio.output.assert_called_with(1, False)
+
+    def test_input(self):
+        rpi_gpio = Mock()
+        adapter = GPIO.RPiGPIOAdapter(rpi_gpio)
+        rpi_gpio.input = Mock(return_value=True)
+        val = adapter.input(1)
+        self.assertTrue(val)
+        rpi_gpio.input.assert_called_with(1)
+
+    def test_setmode(self):
+        rpi_gpio = Mock()
+        adapter = GPIO.RPiGPIOAdapter(rpi_gpio, mode=rpi_gpio.BCM)
+        rpi_gpio.setmode.assert_called_with(rpi_gpio.BCM)
+        adapter = GPIO.RPiGPIOAdapter(rpi_gpio, mode=rpi_gpio.BOARD)
+        rpi_gpio.setmode.assert_called_with(rpi_gpio.BOARD)
+        adapter = GPIO.RPiGPIOAdapter(rpi_gpio)
+        rpi_gpio.setmode.assert_called_with(rpi_gpio.BCM)
+
+    def test_add_event_detect(self):
+        rpi_gpio = Mock()
+        adapter = GPIO.RPiGPIOAdapter(rpi_gpio)
+        adapter.add_event_detect(1, GPIO.RISING)
+        rpi_gpio.add_event_detect.assert_called_with(1, rpi_gpio.RISING)
+
+    def test_remove_event_detect(self):
+        rpi_gpio = Mock()
+        adapter = GPIO.RPiGPIOAdapter(rpi_gpio)
+        adapter.remove_event_detect(1)
+        rpi_gpio.remove_event_detect.assert_called_with(1)
+
+    def test_add_event_callback(self):
+        rpi_gpio = Mock()
+        adapter = GPIO.RPiGPIOAdapter(rpi_gpio)
+        adapter.add_event_callback(1, callback=self.test_add_event_callback)
+        rpi_gpio.add_event_callback.assert_called_with(1, self.test_add_event_callback)
+
+    def test_event_detected(self):
+        rpi_gpio = Mock()
+        adapter = GPIO.RPiGPIOAdapter(rpi_gpio)
+        adapter.event_detected(1)
+        rpi_gpio.event_detected.assert_called_with(1)
+
+    def test_wait_for_edge(self):
+        rpi_gpio = Mock()
+        adapter = GPIO.RPiGPIOAdapter(rpi_gpio)
+        adapter.wait_for_edge(1, GPIO.FALLING)
+        rpi_gpio.wait_for_edge.assert_called_with(1, rpi_gpio.FALLING)
+
+    def test_cleanup(self):
+        rpi_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(rpi_gpio)
+        adapter.cleanup()
+        rpi_gpio.cleanup.assert_called()
+
+    def test_cleanup_pin(self):
+        rpi_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(rpi_gpio)
+        adapter.cleanup(1)
+        rpi_gpio.cleanup.assert_called_with(1)
+
+
+class TestAdafruitBBIOAdapter(unittest.TestCase):
+    def test_setup(self):
+        bbio_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(bbio_gpio)
+        adapter.setup(1, GPIO.OUT)
+        bbio_gpio.setup.assert_called_with(1, bbio_gpio.OUT, pull_up_down=bbio_gpio.PUD_OFF)
+        adapter.setup(1, GPIO.IN)
+        bbio_gpio.setup.assert_called_with(1, bbio_gpio.IN, pull_up_down=bbio_gpio.PUD_OFF)
+        adapter.setup(1, GPIO.IN, GPIO.PUD_DOWN)
+        bbio_gpio.setup.assert_called_with(1, bbio_gpio.IN, pull_up_down=bbio_gpio.PUD_DOWN)
+        adapter.setup(1, GPIO.IN, GPIO.PUD_UP)
+        bbio_gpio.setup.assert_called_with(1, bbio_gpio.IN, pull_up_down=bbio_gpio.PUD_UP)
+
+    def test_output(self):
+        bbio_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(bbio_gpio)
+        adapter.output(1, True)
+        bbio_gpio.output.assert_called_with(1, True)
+        adapter.output(1, False)
+        bbio_gpio.output.assert_called_with(1, False)
+
+    def test_input(self):
+        bbio_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(bbio_gpio)
+        bbio_gpio.input = Mock(return_value=True)
+        val = adapter.input(1)
+        self.assertTrue(val)
+        bbio_gpio.input.assert_called_with(1)
+
+    def test_add_event_detect(self):
+        bbio_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(bbio_gpio)
+        adapter.add_event_detect(1, GPIO.RISING)
+        bbio_gpio.add_event_detect.assert_called_with(1, bbio_gpio.RISING)
+
+    def test_add_event_detect(self):
+        bbio_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(bbio_gpio)
+        adapter.add_event_detect(1, GPIO.RISING)
+        bbio_gpio.add_event_detect.assert_called_with(1, bbio_gpio.RISING)
+
+    def test_remove_event_detect(self):
+        bbio_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(bbio_gpio)
+        adapter.remove_event_detect(1)
+        bbio_gpio.remove_event_detect.assert_called_with(1)
+
+    def test_add_event_callback(self):
+        bbio_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(bbio_gpio)
+        adapter.add_event_callback(1, callback=self.test_add_event_callback)
+        bbio_gpio.add_event_callback.assert_called_with(1, self.test_add_event_callback)
+
+    def test_event_detected(self):
+        bbio_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(bbio_gpio)
+        adapter.event_detected(1)
+        bbio_gpio.event_detected.assert_called_with(1)
+
+    def test_wait_for_edge(self):
+        bbio_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(bbio_gpio)
+        adapter.wait_for_edge(1, GPIO.FALLING)
+        bbio_gpio.wait_for_edge.assert_called_with(1, bbio_gpio.FALLING)
+
+    def test_cleanup(self):
+        bbio_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(bbio_gpio)
+        adapter.cleanup()
+        bbio_gpio.cleanup.assert_called()
+
+    def test_cleanup_pin(self):
+        bbio_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(bbio_gpio)
+        adapter.cleanup(1)
+        bbio_gpio.cleanup.assert_called_with(1)
+
+
+class TestGetPlatformGPIO(unittest.TestCase):
+    @patch.dict('sys.modules', {'RPi': Mock(), 'RPi.GPIO': Mock()})
+    @patch('Adafruit_GPIO.Platform.platform_detect', Mock(return_value=Platform.RASPBERRY_PI))
+    def test_raspberrypi(self):
+        gpio = GPIO.get_platform_gpio()
+        self.assertIsInstance(gpio, GPIO.RPiGPIOAdapter)
+
+    @patch.dict('sys.modules', {'Adafruit_BBIO': Mock(), 'Adafruit_BBIO.GPIO': Mock()})
+    @patch('Adafruit_GPIO.Platform.platform_detect', Mock(return_value=Platform.BEAGLEBONE_BLACK))
+    def test_beagleboneblack(self):
+        gpio = GPIO.get_platform_gpio()
+        self.assertIsInstance(gpio, GPIO.AdafruitBBIOAdapter)
+
+    @patch('Adafruit_GPIO.Platform.platform_detect', Mock(return_value=Platform.UNKNOWN))
+    def test_unknown(self):
+        self.assertRaises(RuntimeError, GPIO.get_platform_gpio)
diff --git a/lib/Adafruit_Python_GPIO/tests/test_I2C.py b/lib/Adafruit_Python_GPIO/tests/test_I2C.py
new file mode 100644
index 0000000..01d0393
--- /dev/null
+++ b/lib/Adafruit_Python_GPIO/tests/test_I2C.py
@@ -0,0 +1,181 @@
+# Copyright (c) 2014 Adafruit Industries
+# Author: Tony DiCola
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+import logging
+import unittest
+
+from mock import Mock, patch
+
+import Adafruit_GPIO.Platform as Platform
+
+
+# Enable debug logging to stdout during tests.
+logging.basicConfig()
+logging.getLogger().setLevel(logging.DEBUG)
+
+
+class MockSMBus(object):
+    # Mock the smbus.SMBus class to record all data written to specific
+    # addresses and registers in the _written member.
+    def __init__(self):
+        # _written will store a dictionary of address to register dictionary.
+        # Each register dictionary will store a mapping of register value to
+        # an array of all written values (in sequential write order).
+        self._written = {}
+        self._read = {}
+
+    def _write_register(self, address, register, value):
+        self._written.setdefault(address, {}).setdefault(register, []).append(value)
+
+    def _read_register(self, address, register):
+        return self._read.get(address).get(register).pop(0)
+
+    def write_byte_data(self, address, register, value):
+        self._write_register(address, register, value)
+
+    def write_word_data(self, address, register, value):
+        self._write_register(address, register, value >> 8 & 0xFF)
+        self._write_register(address, register+1, value & 0xFF)
+
+    def write_i2c_block_data(self, address, register, values):
+        for i, value in enumerate(values):
+            self._write_register(address, register+i, value & 0xFF)
+
+    def read_byte_data(self, address, register):
+        return self._read_register(address, register)
+
+    def read_word_data(self, address, register):
+        high = self._read_register(address, register)
+        low = self._read_register(address, register+1)
+        return (high << 8) | low
+
+    def read_i2c_block_data(self, address, length):
+        return [self._read_register(address+i) for i in range(length)]
+
+
+def create_device(address, busnum):
+    # Mock the smbus module and inject it into the global namespace so the
+    # Adafruit_GPIO.I2C module can be imported.  Also inject a mock SMBus
+    # instance to be returned by smbus.SMBus function calls.
+    smbus = Mock()
+    mockbus = MockSMBus()
+    smbus.SMBus.return_value = mockbus
+    with patch.dict('sys.modules', {'smbus': smbus}):
+        import Adafruit_GPIO.I2C as I2C
+        return (I2C.Device(address, busnum), smbus, mockbus)
+
+def safe_import_i2c():
+    # Mock the smbus module and inject it into the global namespace so the
+    # Adafruit_GPIO.I2C module can be imported.  The imported I2C module is
+    # returned so global functions can be called on it.
+    with patch.dict('sys.modules', {'smbus': Mock() }):
+        import Adafruit_GPIO.I2C as I2C
+        return I2C
+
+
+class TestI2CDevice(unittest.TestCase):
+
+    def test_address_and_bus_set_correctly(self):
+        device, smbus, mockbus = create_device(0x1F, 1)
+        self.assertEqual(device._bus, mockbus)
+        smbus.SMBus.assert_called_with(1)
+        self.assertEqual(device._address, 0x1F)
+
+    def test_write8(self):
+        device, smbus, mockbus = create_device(0x1F, 1)
+        device.write8(0xFE, 0xED)
+        self.assertDictEqual(mockbus._written, { 0x1F: { 0xFE: [0xED] }})
+
+    def test_write8_truncates_to_8bits(self):
+        device, smbus, mockbus = create_device(0x1F, 1)
+        device.write8(0xFE, 0xBEEFED)
+        self.assertDictEqual(mockbus._written, { 0x1F: { 0xFE: [0xED] }})
+
+    def test_write16(self):
+        device, smbus, mockbus = create_device(0x1F, 1)
+        device.write16(0xFE, 0xBEEF)
+        self.assertDictEqual(mockbus._written, { 0x1F: { 0xFE: [0xBE],
+                                                         0xFF: [0xEF] }})
+
+    def test_write16_truncates_to_8bits(self):
+        device, smbus, mockbus = create_device(0x1F, 1)
+        device.write16(0xFE, 0xFEEDBEEF)
+        self.assertDictEqual(mockbus._written, { 0x1F: { 0xFE: [0xBE],
+                                                         0xFF: [0xEF] }})
+
+    def test_writeList(self):
+        device, smbus, mockbus = create_device(0x1F, 1)
+        device.writeList(0x00, [0xFE, 0xED, 0xBE, 0xEF])
+        self.assertDictEqual(mockbus._written, { 0x1F: { 0x00: [0xFE],
+                                                         0x01: [0xED],
+                                                         0x02: [0xBE],
+                                                         0x03: [0xEF] }})
+
+    def test_readU8(self):
+        device, smbus, mockbus = create_device(0x1F, 1)
+        mockbus._read[0x1F] = { 0xFE: [0xED] }
+        value = device.readU8(0xFE)
+        self.assertEqual(value, 0xED)
+
+    def test_readS8(self):
+        device, smbus, mockbus = create_device(0x1F, 1)
+        mockbus._read[0x1F] = { 0xFE: [0xED] }
+        value = device.readS8(0xFE)
+        self.assertEqual(value, -19)
+
+    def test_readU16(self):
+        device, smbus, mockbus = create_device(0x1F, 1)
+        mockbus._read[0x1F] = { 0xFE: [0xED], 0xFF: [0x01] }
+        value = device.readU16(0xFE)
+        self.assertEqual(value, 0xED01)
+
+    def test_readS16(self):
+        device, smbus, mockbus = create_device(0x1F, 1)
+        mockbus._read[0x1F] = { 0xFE: [0xED], 0xFF: [0x01] }
+        value = device.readS16(0xFE)
+        self.assertEqual(value, -4863)
+
+
+class TestGetDefaultBus(unittest.TestCase):
+    @patch('Adafruit_GPIO.Platform.pi_revision', Mock(return_value=1))
+    @patch('Adafruit_GPIO.Platform.platform_detect', Mock(return_value=Platform.RASPBERRY_PI))
+    def test_raspberry_pi_rev1(self):
+        I2C = safe_import_i2c()
+        bus = I2C.get_default_bus()
+        self.assertEqual(bus, 0)
+
+    @patch('Adafruit_GPIO.Platform.pi_revision', Mock(return_value=2))
+    @patch('Adafruit_GPIO.Platform.platform_detect', Mock(return_value=Platform.RASPBERRY_PI))
+    def test_raspberry_pi_rev2(self):
+        I2C = safe_import_i2c()
+        bus = I2C.get_default_bus()
+        self.assertEqual(bus, 1)
+
+    @patch('Adafruit_GPIO.Platform.platform_detect', Mock(return_value=Platform.BEAGLEBONE_BLACK))
+    def test_beaglebone_black(self):
+        I2C = safe_import_i2c()
+        bus = I2C.get_default_bus()
+        self.assertEqual(bus, 1)
+
+    @patch('Adafruit_GPIO.Platform.platform_detect', Mock(return_value=Platform.UNKNOWN))
+    def test_unknown(self):
+        I2C = safe_import_i2c()
+        self.assertRaises(RuntimeError, I2C.get_default_bus)
diff --git a/lib/Adafruit_Python_GPIO/tests/test_PWM.py b/lib/Adafruit_Python_GPIO/tests/test_PWM.py
new file mode 100644
index 0000000..d80bd1f
--- /dev/null
+++ b/lib/Adafruit_Python_GPIO/tests/test_PWM.py
@@ -0,0 +1,103 @@
+# Copyright (c) 2014 Adafruit Industries
+# Author: Tony DiCola
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+import unittest
+
+from mock import Mock, patch
+
+import Adafruit_GPIO.PWM as PWM
+import Adafruit_GPIO.Platform as Platform
+
+
+class TestRPi_PWM_Adapter(unittest.TestCase):
+    def test_setup(self):
+        rpi_gpio = Mock()
+        pwm = PWM.RPi_PWM_Adapter(rpi_gpio)
+        pwm.start(1, 50)
+        rpi_gpio.PWM.assert_called_with(1, 2000)
+
+    def test_set_duty_cycle_valid(self):
+        rpi_gpio = Mock()
+        pwm = PWM.RPi_PWM_Adapter(rpi_gpio)
+        pwm.start(1, 50)
+        pwm.set_duty_cycle(1, 75)
+        # Implicit verification that no assertion or other error thrown.
+
+    def test_set_duty_cycle_invalid(self):
+        rpi_gpio = Mock()
+        pwm = PWM.RPi_PWM_Adapter(rpi_gpio)
+        pwm.start(1, 50)
+        self.assertRaises(ValueError, pwm.set_duty_cycle, 1, 150)
+        self.assertRaises(ValueError, pwm.set_duty_cycle, 1, -10)
+
+    def test_set_frequency(self):
+        rpi_gpio = Mock()
+        pwm = PWM.RPi_PWM_Adapter(rpi_gpio)
+        pwm.start(1, 50)
+        pwm.set_frequency(1, 1000)
+        # Implicit verification that no assertion or other error thrown.
+
+
+class TestBBIO_PWM_Adapter(unittest.TestCase):
+    def test_setup(self):
+        bbio_pwm = Mock()
+        pwm = PWM.BBIO_PWM_Adapter(bbio_pwm)
+        pwm.start('P9_16', 50)
+        bbio_pwm.start.assert_called_with('P9_16', 50, 2000)
+
+    def test_set_duty_cycle_valid(self):
+        bbio_pwm = Mock()
+        pwm = PWM.BBIO_PWM_Adapter(bbio_pwm)
+        pwm.start('P9_16', 50)
+        pwm.set_duty_cycle('P9_16', 75)
+        bbio_pwm.set_duty_cycle.assert_called_with('P9_16', 75)
+
+    def test_set_duty_cycle_invalid(self):
+        bbio_pwm = Mock()
+        pwm = PWM.BBIO_PWM_Adapter(bbio_pwm)
+        pwm.start('P9_16', 50)
+        self.assertRaises(ValueError, pwm.set_duty_cycle, 'P9_16', 150)
+        self.assertRaises(ValueError, pwm.set_duty_cycle, 'P9_16', -10)
+
+    def test_set_frequency(self):
+        bbio_pwm = Mock()
+        pwm = PWM.BBIO_PWM_Adapter(bbio_pwm)
+        pwm.start('P9_16', 50)
+        pwm.set_frequency('P9_16', 1000)
+        bbio_pwm.set_frequency.assert_called_with('P9_16', 1000)
+
+
+class TestGetPlatformPWM(unittest.TestCase):
+    @patch.dict('sys.modules', {'RPi': Mock(), 'RPi.GPIO': Mock()})
+    @patch('Adafruit_GPIO.Platform.platform_detect', Mock(return_value=Platform.RASPBERRY_PI))
+    def test_raspberrypi(self):
+        pwm = PWM.get_platform_pwm()
+        self.assertIsInstance(pwm, PWM.RPi_PWM_Adapter)
+
+    @patch.dict('sys.modules', {'Adafruit_BBIO': Mock(), 'Adafruit_BBIO.PWM': Mock()})
+    @patch('Adafruit_GPIO.Platform.platform_detect', Mock(return_value=Platform.BEAGLEBONE_BLACK))
+    def test_beagleboneblack(self):
+        pwm = PWM.get_platform_pwm()
+        self.assertIsInstance(pwm, PWM.BBIO_PWM_Adapter)
+
+    @patch('Adafruit_GPIO.Platform.platform_detect', Mock(return_value=Platform.UNKNOWN))
+    def test_otherplatform(self):
+        self.assertRaises(RuntimeError, PWM.get_platform_pwm)
diff --git a/lib/Adafruit_Python_GPIO/tests/test_Platform.py b/lib/Adafruit_Python_GPIO/tests/test_Platform.py
new file mode 100644
index 0000000..42da8e3
--- /dev/null
+++ b/lib/Adafruit_Python_GPIO/tests/test_Platform.py
@@ -0,0 +1,70 @@
+# Copyright (c) 2014 Adafruit Industries
+# Author: Tony DiCola
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+import unittest
+
+from mock import Mock, patch
+
+import Adafruit_GPIO.Platform as Platform
+
+
+class TestPlatformDetect(unittest.TestCase):
+    @patch('platform.platform', Mock(return_value='Linux-3.8.13-bone47-armv7l-with-debian-7.4'))
+    def test_beaglebone_black(self):
+        result = Platform.platform_detect()
+        self.assertEquals(result, Platform.BEAGLEBONE_BLACK)
+
+    @patch('platform.platform', Mock(return_value='Darwin-13.2.0-x86_64-i386-64bit'))
+    def test_unknown(self):
+        result = Platform.platform_detect()
+        self.assertEquals(result, Platform.UNKNOWN)
+
+
+class TestPiRevision(unittest.TestCase):
+    def test_revision_1(self):
+        with patch('__builtin__.open') as mock_open:
+            handle = mock_open.return_value.__enter__.return_value
+            handle.__iter__.return_value = iter(['Revision : 0000'])
+            rev = Platform.pi_revision()
+            self.assertEquals(rev, 1)
+        with patch('__builtin__.open') as mock_open:
+            handle = mock_open.return_value.__enter__.return_value
+            handle.__iter__.return_value = iter(['Revision : 0002'])
+            rev = Platform.pi_revision()
+            self.assertEquals(rev, 1)
+        with patch('__builtin__.open') as mock_open:
+            handle = mock_open.return_value.__enter__.return_value
+            handle.__iter__.return_value = iter(['Revision : 0003'])
+            rev = Platform.pi_revision()
+            self.assertEquals(rev, 1)
+
+    def test_revision_2(self):
+        with patch('__builtin__.open') as mock_open:
+            handle = mock_open.return_value.__enter__.return_value
+            handle.__iter__.return_value = iter(['Revision : 000e'])
+            rev = Platform.pi_revision()
+            self.assertEquals(rev, 2)
+
+    def test_unknown_revision(self):
+        with patch('__builtin__.open') as mock_open:
+            handle = mock_open.return_value.__enter__.return_value
+            handle.__iter__.return_value = iter(['foobar'])
+            self.assertRaises(RuntimeError, Platform.pi_revision)
+
diff --git a/lib/Adafruit_Python_GPIO/tests/test_SPI.py b/lib/Adafruit_Python_GPIO/tests/test_SPI.py
new file mode 100644
index 0000000..123eec1
--- /dev/null
+++ b/lib/Adafruit_Python_GPIO/tests/test_SPI.py
@@ -0,0 +1,192 @@
+# Copyright (c) 2014 Adafruit Industries
+# Author: Tony DiCola
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+import unittest
+
+import Adafruit_GPIO as GPIO
+import Adafruit_GPIO.SPI as SPI
+
+from MockGPIO import MockGPIO
+
+
+class TestBitBangSPI(unittest.TestCase):
+    def test_pin_modes_set_correctly(self):
+        gpio = MockGPIO()
+        device = SPI.BitBang(gpio, 1, 2, 3, 4)
+        self.assertDictEqual(gpio.pin_mode, { 1: GPIO.OUT,
+                                              2: GPIO.OUT,
+                                              3: GPIO.IN,
+                                              4: GPIO.OUT })
+
+    def test_ss_set_high_after_initialization(self):
+        gpio = MockGPIO()
+        device = SPI.BitBang(gpio, 1, 2, 3, 4)
+        self.assertListEqual(gpio.pin_written[4], [1])
+
+    def test_mode_0_write(self):
+        gpio = MockGPIO()
+        device = SPI.BitBang(gpio, 1, 2, 3, 4)
+        device.write([0x1F])
+        # Verify clock
+        self.assertListEqual(gpio.pin_written[1], [0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1, 0])
+        # Verify MOSI
+        self.assertListEqual(gpio.pin_written[2], [0, 0, 0, 1, 1, 1, 1, 1])
+        # Verify MISO
+        self.assertNotIn(3, gpio.pin_written)
+        # Verify SS
+        self.assertListEqual(gpio.pin_written[4], [1, 0, 1])
+
+    def test_write_assert_deassert_ss_false(self):
+        gpio = MockGPIO()
+        device = SPI.BitBang(gpio, 1, 2, 3, 4)
+        device.write([0x1F], assert_ss=False, deassert_ss=False)
+        self.assertListEqual(gpio.pin_written[4], [1])
+
+    def test_write_lsbfirst(self):
+        gpio = MockGPIO()
+        device = SPI.BitBang(gpio, 1, 2, 3, 4)
+        device.set_bit_order(SPI.LSBFIRST)
+        device.write([0x1F])
+        self.assertListEqual(gpio.pin_written[2], [1, 1, 1, 1, 1, 0, 0, 0])
+
+    def test_invalid_mode_fails(self):
+        gpio = MockGPIO()
+        device = SPI.BitBang(gpio, 1, 2, 3, 4)
+        self.assertRaises(ValueError, device.set_mode, -1)
+        self.assertRaises(ValueError, device.set_mode, 4)
+
+    def test_invalid_bit_order_fails(self):
+        gpio = MockGPIO()
+        device = SPI.BitBang(gpio, 1, 2, 3, 4)
+        self.assertRaises(ValueError, device.set_bit_order, -1)
+        self.assertRaises(ValueError, device.set_bit_order, 2)
+
+    def test_mode_0_read(self):
+        gpio = MockGPIO()
+        device = SPI.BitBang(gpio, 1, 2, 3, 4)
+        gpio.pin_read[3] = [0, 0, 0, 1, 1, 1, 1, 1]
+        result = device.read(1)
+        # Verify clock
+        self.assertListEqual(gpio.pin_written[1], [0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1, 0])
+        # Verify MOSI
+        self.assertNotIn(2, gpio.pin_written)
+        # Verify MISO
+        self.assertNotIn(3, gpio.pin_written)
+        # Verify SS
+        self.assertListEqual(gpio.pin_written[4], [1, 0, 1])
+        # Verify result
+        self.assertEqual(result, bytearray([0x1F]))
+
+    def test_read_assert_deassert_ss_false(self):
+        gpio = MockGPIO()
+        device = SPI.BitBang(gpio, 1, 2, 3, 4)
+        gpio.pin_read[3] = [0, 0, 0, 1, 1, 1, 1, 1]
+        result = device.read(1, assert_ss=False, deassert_ss=False)
+        self.assertListEqual(gpio.pin_written[4], [1])
+
+    def test_read_multiple_bytes(self):
+        gpio = MockGPIO()
+        device = SPI.BitBang(gpio, 1, 2, 3, 4)
+        gpio.pin_read[3] = [0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0,
+                            0, 0, 0, 1, 1, 1, 1, 1]
+        result = device.read(3)
+        # Verify clock
+        self.assertListEqual(gpio.pin_written[1], [0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1, 0])
+        # Verify MOSI
+        self.assertNotIn(2, gpio.pin_written)
+        # Verify MISO
+        self.assertNotIn(3, gpio.pin_written)
+        # Verify SS
+        self.assertListEqual(gpio.pin_written[4], [1, 0, 1])
+        # Verify result
+        self.assertEqual(result, bytearray([0x1F, 0xF8, 0x1F]))
+
+    def test_write_multiple_bytes(self):
+        gpio = MockGPIO()
+        device = SPI.BitBang(gpio, 1, 2, 3, 4)
+        device.write([0x1F, 0xF8, 0x1F])
+        # Verify clock
+        self.assertListEqual(gpio.pin_written[1], [0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1, 0])
+        # Verify MOSI
+        self.assertListEqual(gpio.pin_written[2], [0, 0, 0, 1, 1, 1, 1, 1,
+                                                   1, 1, 1, 1, 1, 0, 0, 0,
+                                                   0, 0, 0, 1, 1, 1, 1, 1])
+        # Verify MISO
+        self.assertNotIn(3, gpio.pin_written)
+        # Verify SS
+        self.assertListEqual(gpio.pin_written[4], [1, 0, 1])
+
+    def test_mode_0_transfer(self):
+        gpio = MockGPIO()
+        device = SPI.BitBang(gpio, 1, 2, 3, 4)
+        gpio.pin_read[3] = [0, 0, 0, 1, 1, 1, 1, 1]
+        result = device.transfer([0xF8])
+        # Verify clock
+        self.assertListEqual(gpio.pin_written[1], [0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1, 0])
+        # Verify MOSI
+        self.assertListEqual(gpio.pin_written[2], [1, 1, 1, 1, 1, 0, 0, 0])
+        # Verify MISO
+        self.assertNotIn(3, gpio.pin_written)
+        # Verify SS
+        self.assertListEqual(gpio.pin_written[4], [1, 0, 1])
+        # Verify result
+        self.assertEqual(result, bytearray([0x1F]))
+
+    def test_transfer_multiple_bytes(self):
+        gpio = MockGPIO()
+        device = SPI.BitBang(gpio, 1, 2, 3, 4)
+        gpio.pin_read[3] = [0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0,
+                            0, 0, 0, 1, 1, 1, 1, 1]
+        result = device.transfer([0xF8, 0x1F, 0xF8])
+        # Verify clock
+        self.assertListEqual(gpio.pin_written[1], [0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1,
+                                                   0, 1, 0, 1, 0, 1, 0, 1, 0])
+        # Verify MOSI
+        self.assertListEqual(gpio.pin_written[2], [1, 1, 1, 1, 1, 0, 0, 0,
+                                                   0, 0, 0, 1, 1, 1, 1, 1,
+                                                   1, 1, 1, 1, 1, 0, 0, 0])
+        # Verify MISO
+        self.assertNotIn(3, gpio.pin_written)
+        # Verify SS
+        self.assertListEqual(gpio.pin_written[4], [1, 0, 1])
+        # Verify result
+        self.assertEqual(result, bytearray([0x1F, 0xF8, 0x1F]))
+
+    #TODO: Test mode 1, 2, 3
+
+    #TODO: Test null MOSI, MISO, SS