#!/usr/bin/env python
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"""
Verify that the mem subcommand only prints results for the last number
of files specified with the -t and --tail options.
"""

import TestSCons_time

test = TestSCons_time.TestSCons_time()


header = '    pre-read    post-read    pre-build   post-build\n'

lines = []

line_fmt = '        1000         2000         3000         4000    %s\n'

for i in range(9):
    logfile_name = 'foo-%s.log' % i
    test.fake_logfile(logfile_name)
    lines.append(line_fmt % logfile_name)

expect3 = [header] + lines[-3:]
expect5 = [header] + lines[-5:]

test.run(arguments = 'mem -t 3 foo-*.log', stdout = ''.join(expect3))

test.run(arguments = 'mem --tail 5 foo-*.log', stdout = ''.join(expect5))

test.pass_test()

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