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-rw-r--r--Adafruit_Python_GPIO/tests/test_SPI.py192
1 files changed, 0 insertions, 192 deletions
diff --git a/Adafruit_Python_GPIO/tests/test_SPI.py b/Adafruit_Python_GPIO/tests/test_SPI.py
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index 123eec1..0000000
--- a/Adafruit_Python_GPIO/tests/test_SPI.py
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@@ -1,192 +0,0 @@
-# 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
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 14:58:11 +0000