170bdd104f
Large change that removes the duplicated MIT notice withe a spdx tag Signed-off-by: Thomas Ingleby <thomas.ingleby@intel.com>
62 lines
2.3 KiB
Python
Executable File
62 lines
2.3 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 I2cChecksWrite(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_full_reg_range(self):
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self.i2c.address(MRAA_MOCK_I2C_ADDR)
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data_to_write = bytearray([0xEE for i in range(MRAA_MOCK_I2C_DATA_LEN)])
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self.assertEqual(self.i2c.write(data_to_write),
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m.SUCCESS,
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"I2C write() of full register range did not return success")
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res = self.i2c.read(MRAA_MOCK_I2C_DATA_LEN)
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self.assertEqual(res,
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data_to_write,
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"I2C read() after write() of full register range returned unexpected data")
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def test_i2c_write_part_reg_range(self):
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self.i2c.address(MRAA_MOCK_I2C_ADDR)
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data_to_write = bytearray([0xEE for i in range(MRAA_MOCK_I2C_DATA_LEN - 1)])
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self.assertEqual(self.i2c.write(data_to_write),
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m.SUCCESS,
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"I2C write() of partial register range did not return success")
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res = self.i2c.read(MRAA_MOCK_I2C_DATA_LEN - 1)
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self.assertEqual(res,
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data_to_write,
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"I2C read() after write() of partial register range returned unexpected data")
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def test_i2c_write_len_bigger_than_max(self):
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self.i2c.address(MRAA_MOCK_I2C_ADDR)
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data_to_write = bytearray([0xEE for i in range(MRAA_MOCK_I2C_DATA_LEN + 1)])
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self.assertEqual(self.i2c.write(data_to_write),
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m.SUCCESS,
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"I2C write() with length bigger than max did not return success")
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res = self.i2c.read(MRAA_MOCK_I2C_DATA_LEN)
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self.assertEqual(res,
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data_to_write[:-1],
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"I2C read() after write() with length bigger than max returned unexpected data")
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def test_i2c_write_invalid_addr(self):
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self.i2c.address(MRAA_MOCK_I2C_ADDR - 1)
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data_to_write = bytearray([0xEE for i in range(MRAA_MOCK_I2C_DATA_LEN)])
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self.assertEqual(self.i2c.write(data_to_write),
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m.ERROR_UNSPECIFIED,
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"I2C write() to invalid address did not return error")
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if __name__ == "__main__":
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u.main()
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