170bdd104f
Large change that removes the duplicated MIT notice withe a spdx tag Signed-off-by: Thomas Ingleby <thomas.ingleby@intel.com>
54 lines
1.7 KiB
Python
Executable File
54 lines
1.7 KiB
Python
Executable File
#!/usr/bin/env python
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# Author: Alex Tereschenko <alext.mkrs@gmail.com>
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# Copyright (c) 2016 Alex Tereschenko.
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#
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# SPDX-License-Identifier: MIT
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import mraa as m
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import unittest as u
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from i2c_checks_shared import *
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class I2cChecksWriteWordData(u.TestCase):
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def setUp(self):
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self.i2c = m.I2c(MRAA_I2C_BUS_NUM)
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def tearDown(self):
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del self.i2c
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def test_i2c_write_word_data(self):
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self.i2c.address(MRAA_MOCK_I2C_ADDR)
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high_byte = 0xAA
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low_byte = 0xBB
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test_word = (high_byte << 8) + low_byte
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reg = MRAA_MOCK_I2C_DATA_LEN - 2
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self.assertEqual(self.i2c.writeWordReg(reg, test_word),
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m.SUCCESS,
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"I2C writeWordReg() did not return success")
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self.assertEqual(self.i2c.readReg(reg),
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high_byte,
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"I2C readReg() of higher byte after writeWordReg() returned unexpected data")
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self.assertEqual(self.i2c.readReg(reg + 1),
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low_byte,
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"I2C readReg() of lower byte after writeWordReg() returned unexpected data")
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def test_i2c_write_word_data_invalid_addr(self):
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self.i2c.address(MRAA_MOCK_I2C_ADDR - 1)
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test_word = 0xAABB
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reg = MRAA_MOCK_I2C_DATA_LEN - 2
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self.assertEqual(self.i2c.writeWordReg(reg, test_word),
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m.ERROR_UNSPECIFIED,
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"I2C writeWordReg() to invalid address did not return error")
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def test_i2c_write_word_data_invalid_reg(self):
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self.i2c.address(MRAA_MOCK_I2C_ADDR)
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test_word = 0xAABB
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reg = MRAA_MOCK_I2C_DATA_LEN
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self.assertEqual(self.i2c.writeWordReg(reg, test_word),
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m.ERROR_UNSPECIFIED,
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"I2C writeWordReg() with invalid register did not return error")
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if __name__ == "__main__":
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u.main()
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