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@@ -446,29 +446,30 @@ This archive: 20 B 10 B 10 B""
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def test_file_size():
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"""test the size formatting routines"""
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- si_size_map = { 0: '0 B',
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+ si_size_map = { 0: '0 B', # no rounding necessary for those
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1: '1 B',
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142: '142 B',
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999: '999 B',
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- 1000: '1.00 kB',
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- 1001: '1.00 kB',
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- 1234: '1.23 kB',
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- 10**6: '1.00 MB',
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- 10**6 + 10*10**3: '1.01 MB',
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- 10**9: '1.00 GB',
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- 10**9+1: '1.00 GB',
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- 10**9-1: '1.00 GB',
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- 10**9-10*10**3: '999.99 MB',
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- 10**9-10*10**3+5*10**3: '1.00 GB',
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- 10**12+1: '1.00 TB',
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- 10**15+1: '1.00 PB',
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- 10**18+1: '1.00 EB',
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- 10**21+1: '1.00 ZB',
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- 10**24+1: '1.00 YB',
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+ 1000: '1.00 kB', # rounding starts here
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+ 1001: '1.00 kB', # should be rounded away
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+ 1234: '1.23 kB', # should be rounded down
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+ 1235: '1.24 kB', # should be rounded up
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+ 1010: '1.01 kB', # rounded down as well
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+ 999990000: '999.99 MB', # rounded down
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+ 999990001: '999.99 MB', # rounded down
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+ 999995000: '1.00 GB', # rounded up to next unit
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+ 10**6: '1.00 MB', # and all the remaining units, megabytes
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+ 10**9: '1.00 GB', # gigabytes
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+ 10**12: '1.00 TB', # terabytes
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+ 10**15: '1.00 PB', # petabytes
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+ 10**18: '1.00 EB', # exabytes
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+ 10**21: '1.00 ZB', # zottabytes
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+ 10**24: '1.00 YB', # yottabytes
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}
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for size, fmt in si_size_map.items():
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assert format_file_size(size) == fmt
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def test_file_size_precision():
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- assert format_file_size(1254, precision=1) == '1.3 kB'
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+ assert format_file_size(1234, precision=1) == '1.2 kB' # rounded down
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+ assert format_file_size(1254, precision=1) == '1.3 kB' # rounded up
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assert format_file_size(999990000, precision=1) == '1.0 GB' # and not 999.9 MB or 1000.0 MB
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Antoine Beaupré