github.com/bugraaydogar/snapd@v0.0.0-20210315170335-8c70bb858939/sandbox/cgroup/pids_test.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2019-2020 Canonical Ltd
     5   *
     6   * This program is free software: you can redistribute it and/or modify
     7   * it under the terms of the GNU General Public License version 3 as
     8   * published by the Free Software Foundation.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  package cgroup_test
    20  
    21  import (
    22  	. "gopkg.in/check.v1"
    23  
    24  	"github.com/snapcore/snapd/sandbox/cgroup"
    25  )
    26  
    27  type pidsSuite struct{}
    28  
    29  var _ = Suite(&pidsSuite{})
    30  
    31  func (s *pidsSuite) TestParsePid(c *C) {
    32  	pid, err := cgroup.ParsePid("10")
    33  	c.Assert(err, IsNil)
    34  	c.Check(pid, Equals, 10)
    35  	_, err = cgroup.ParsePid("")
    36  	c.Assert(err, ErrorMatches, `cannot parse pid ""`)
    37  	_, err = cgroup.ParsePid("-1")
    38  	c.Assert(err, ErrorMatches, `cannot parse pid "-1"`)
    39  	_, err = cgroup.ParsePid("foo")
    40  	c.Assert(err, ErrorMatches, `cannot parse pid "foo"`)
    41  	_, err = cgroup.ParsePid("12\x0034")
    42  	c.Assert(err.Error(), Equals, "cannot parse pid \"12\\x0034\"")
    43  	_, err = cgroup.ParsePid("ł")
    44  	c.Assert(err, ErrorMatches, `cannot parse pid "ł"`)
    45  	_, err = cgroup.ParsePid("1000000000000000000000000000000000000000000000")
    46  	c.Assert(err, ErrorMatches, `cannot parse pid "1000000000000000000000000000000000000000000000"`)
    47  }