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Fix SPI tests when spidev is installed

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Doh! SPI tests fail when the spidev package is installed (which it
normally isn't in my virtualenv) because hardware SPI always takes
precedence and the mock SPI stuff only replaces software SPI.
This commit is contained in:
Dave Jones
2017-06-21 14:40:52 +01:00
parent 35f1ff0623
commit d2a7c1434a
2 changed files with 89 additions and 70 deletions
Download Patch File Download Diff File Expand all files Collapse all files

142
tests/test_spi_devices.py
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@@ -9,6 +9,7 @@ str = type('')
import sys
import pytest
from mock import patch
from collections import namedtuple
try:
from math import isclose
@@ -247,89 +248,100 @@ def differential_mcp_test(mock, pot, pos_channel, neg_channel, bits, full=False)
def test_MCP3001():
mock = MockMCP3001(11, 10, 9, 8)
with MCP3001() as pot:
differential_mcp_test(mock, pot, 0, 1, 10)
with patch('gpiozero.pins.local.SpiDev', None):
mock = MockMCP3001(11, 10, 9, 8)
with MCP3001() as pot:
differential_mcp_test(mock, pot, 0, 1, 10)
def test_MCP3002():
mock = MockMCP3002(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3002(channel=5)
with MCP3002(channel=1) as pot:
single_mcp_test(mock, pot, 1, 10)
with MCP3002(channel=1, differential=True) as pot:
differential_mcp_test(mock, pot, 1, 0, 10)
with patch('gpiozero.pins.local.SpiDev', None):
mock = MockMCP3002(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3002(channel=5)
with MCP3002(channel=1) as pot:
single_mcp_test(mock, pot, 1, 10)
with MCP3002(channel=1, differential=True) as pot:
differential_mcp_test(mock, pot, 1, 0, 10)
def test_MCP3004():
mock = MockMCP3004(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3004(channel=5)
with MCP3004(channel=3) as pot:
single_mcp_test(mock, pot, 3, 10)
with MCP3004(channel=3, differential=True) as pot:
differential_mcp_test(mock, pot, 3, 2, 10)
with patch('gpiozero.pins.local.SpiDev', None):
mock = MockMCP3004(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3004(channel=5)
with MCP3004(channel=3) as pot:
single_mcp_test(mock, pot, 3, 10)
with MCP3004(channel=3, differential=True) as pot:
differential_mcp_test(mock, pot, 3, 2, 10)
def test_MCP3008():
mock = MockMCP3008(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3008(channel=9)
with MCP3008(channel=0) as pot:
single_mcp_test(mock, pot, 0, 10)
with MCP3008(channel=0, differential=True) as pot:
differential_mcp_test(mock, pot, 0, 1, 10)
with patch('gpiozero.pins.local.SpiDev', None):
mock = MockMCP3008(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3008(channel=9)
with MCP3008(channel=0) as pot:
single_mcp_test(mock, pot, 0, 10)
with MCP3008(channel=0, differential=True) as pot:
differential_mcp_test(mock, pot, 0, 1, 10)
def test_MCP3201():
mock = MockMCP3201(11, 10, 9, 8)
with MCP3201() as pot:
differential_mcp_test(mock, pot, 0, 1, 12)
with patch('gpiozero.pins.local.SpiDev', None):
mock = MockMCP3201(11, 10, 9, 8)
with MCP3201() as pot:
differential_mcp_test(mock, pot, 0, 1, 12)
def test_MCP3202():
mock = MockMCP3202(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3202(channel=5)
with MCP3202(channel=1) as pot:
single_mcp_test(mock, pot, 1, 12)
with MCP3202(channel=1, differential=True) as pot:
differential_mcp_test(mock, pot, 1, 0, 12)
with patch('gpiozero.pins.local.SpiDev', None):
mock = MockMCP3202(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3202(channel=5)
with MCP3202(channel=1) as pot:
single_mcp_test(mock, pot, 1, 12)
with MCP3202(channel=1, differential=True) as pot:
differential_mcp_test(mock, pot, 1, 0, 12)
def test_MCP3204():
mock = MockMCP3204(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3204(channel=5)
with MCP3204(channel=1) as pot:
single_mcp_test(mock, pot, 1, 12)
with MCP3204(channel=1, differential=True) as pot:
differential_mcp_test(mock, pot, 1, 0, 12)
with patch('gpiozero.pins.local.SpiDev', None):
mock = MockMCP3204(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3204(channel=5)
with MCP3204(channel=1) as pot:
single_mcp_test(mock, pot, 1, 12)
with MCP3204(channel=1, differential=True) as pot:
differential_mcp_test(mock, pot, 1, 0, 12)
def test_MCP3208():
mock = MockMCP3208(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3208(channel=9)
with MCP3208(channel=7) as pot:
single_mcp_test(mock, pot, 7, 12)
with MCP3208(channel=7, differential=True) as pot:
differential_mcp_test(mock, pot, 7, 6, 12)
with patch('gpiozero.pins.local.SpiDev', None):
mock = MockMCP3208(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3208(channel=9)
with MCP3208(channel=7) as pot:
single_mcp_test(mock, pot, 7, 12)
with MCP3208(channel=7, differential=True) as pot:
differential_mcp_test(mock, pot, 7, 6, 12)
def test_MCP3301():
mock = MockMCP3301(11, 10, 9, 8)
with MCP3301() as pot:
differential_mcp_test(mock, pot, 0, 1, 12, full=True)
with patch('gpiozero.pins.local.SpiDev', None):
mock = MockMCP3301(11, 10, 9, 8)
with MCP3301() as pot:
differential_mcp_test(mock, pot, 0, 1, 12, full=True)
def test_MCP3302():
mock = MockMCP3302(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3302(channel=4)
with MCP3302(channel=0) as pot:
single_mcp_test(mock, pot, 0, 12)
with MCP3302(channel=0, differential=True) as pot:
differential_mcp_test(mock, pot, 0, 1, 12, full=True)
with patch('gpiozero.pins.local.SpiDev', None):
mock = MockMCP3302(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3302(channel=4)
with MCP3302(channel=0) as pot:
single_mcp_test(mock, pot, 0, 12)
with MCP3302(channel=0, differential=True) as pot:
differential_mcp_test(mock, pot, 0, 1, 12, full=True)
def test_MCP3304():
mock = MockMCP3304(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3304(channel=9)
with MCP3304(channel=5) as pot:
single_mcp_test(mock, pot, 5, 12)
with MCP3304(channel=5, differential=True) as pot:
differential_mcp_test(mock, pot, 5, 4, 12, full=True)
with patch('gpiozero.pins.local.SpiDev', None):
mock = MockMCP3304(11, 10, 9, 8)
with pytest.raises(ValueError):
MCP3304(channel=9)
with MCP3304(channel=5) as pot:
single_mcp_test(mock, pot, 5, 12)
with MCP3304(channel=5, differential=True) as pot:
differential_mcp_test(mock, pot, 5, 4, 12, full=True)