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			127 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			127 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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#
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# SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
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# SPDX-License-Identifier: Apache-2.0
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from __future__ import unicode_literals
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import collections
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import filecmp
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import json
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import os
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import shutil
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import sys
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import tempfile
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import time
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import unittest
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import pexpect
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current_dir = os.path.dirname(os.path.realpath(__file__))
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mkdfu_path = os.path.join(current_dir, '..', 'mkdfu.py')
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class TestMkDFU(unittest.TestCase):
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    def common_test(self, json_input=None, file_args=[], output_to_compare=None, part_size=None):
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        '''
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        - json_input - input JSON file compatible with mkdfu.py - used when not None
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        - file_args - list of (address, path_to_file) tuples
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        - output_to_compare - path to the file containing the expected output - tested when not None
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        - part_size - partition size - used when not None
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        '''
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        with tempfile.NamedTemporaryFile(delete=False) as f_out:
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            self.addCleanup(os.unlink, f_out.name)
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        args = [mkdfu_path, 'write',
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                '-o', f_out.name,
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                '--pid', '2',
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                '--flash-size', '4MB']
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        if part_size:
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            args += ['--part-size', str(part_size)]
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        if json_input:
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            args += ['--json', json_input]
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        for addr, f_path in file_args:
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            args += [str(addr), f_path]
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        p = pexpect.spawn(sys.executable, args, timeout=10, encoding='utf-8')
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        self.addCleanup(p.terminate, force=True)
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        p.expect_exact('Adding flash chip parameters file with flash_size = 4MB')
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        for addr, f_path in sorted(file_args, key=lambda e: e[0]):
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            p.expect_exact('Adding {} at {}'.format(f_path, hex(addr)))
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        p.expect_exact('"{}" has been written. You may proceed with DFU flashing.'.format(f_out.name))
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        # Need to wait for the process to end because the output file is closed when mkdfu exits.
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        # Do non-blocking wait instead of the blocking p.wait():
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        for _ in range(10):
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            if not p.isalive():
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                break
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            time.sleep(0.5)
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        else:
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            p.terminate()
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        if output_to_compare:
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            self.assertTrue(filecmp.cmp(f_out.name, os.path.join(current_dir, output_to_compare)), 'Output files are different')
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class TestHelloWorldExample(TestMkDFU):
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    '''
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    tests with images prepared in the "1" subdirectory
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    '''
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    def test_with_json(self):
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        with tempfile.NamedTemporaryFile(mode='w', dir=os.path.join(current_dir, '1'), delete=False) as f:
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            self.addCleanup(os.unlink, f.name)
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            bins = [('0x1000', '1.bin'), ('0x8000', '2.bin'), ('0x10000', '3.bin')]
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            json.dump({'flash_files': collections.OrderedDict(bins)}, f)
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        self.common_test(json_input=f.name, output_to_compare='1/dfu.bin')
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    def test_without_json(self):
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        self.common_test(file_args=[(0x1000, '1/1.bin'),
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                                    (0x8000, '1/2.bin'),
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                                    (0x10000, '1/3.bin')],
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                         output_to_compare='1/dfu.bin')
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    def test_filenames(self):
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        temp_dir = tempfile.mkdtemp(prefix='very_long_directory_name' * 8)
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        self.addCleanup(shutil.rmtree, temp_dir, ignore_errors=True)
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        with tempfile.NamedTemporaryFile(prefix='ľščťžýáíéěř\u0420\u043e\u0441\u0441\u0438\u044f',
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                                         dir=temp_dir,
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                                         delete=False) as f:
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            bootloader = f.name
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        shutil.copyfile(os.path.join(current_dir, '1', '1.bin'), bootloader)
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        self.common_test(file_args=[(0x1000, bootloader),
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                                    (0x8000, os.path.join(current_dir, '1', '2.bin')),
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                                    (0x10000, os.path.join(current_dir, '1', '3.bin'))])
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class TestSplit(TestMkDFU):
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    '''
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    tests with images prepared in the "2" subdirectory
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    "2/dfu.bin" was prepared with:
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        mkdfu.py write --part-size 5 --pid 2 --flash-size 4MB -o 2/dfu.bin 0 bin
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    where the content of "bin" is b"\xce" * 10
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    '''
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    def test_split(self):
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        temp_dir = tempfile.mkdtemp(dir=current_dir)
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        self.addCleanup(shutil.rmtree, temp_dir, ignore_errors=True)
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        with open(os.path.join(temp_dir, 'bin'), 'wb') as f:
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            self.addCleanup(os.unlink, f.name)
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            f.write(b'\xce' * 10)
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        self.common_test(file_args=[(0, f.name)],
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                         part_size=5,
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                         output_to_compare='2/dfu.bin')
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if __name__ == '__main__':
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    unittest.main()
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