github.com/stolowski/snapd@v0.0.0-20210407085831-115137ce5a22/osutil/sizer_test.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 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  
    20  package osutil_test
    21  
    22  import (
    23  	"io"
    24  
    25  	. "gopkg.in/check.v1"
    26  
    27  	"github.com/snapcore/snapd/osutil"
    28  )
    29  
    30  type sizerTestSuite struct{}
    31  
    32  var _ = Suite(&sizerTestSuite{})
    33  
    34  func (s *sizerTestSuite) TestSizer(c *C) {
    35  	sz := &osutil.Sizer{}
    36  	c.Check(sz.Size(), Equals, int64(0))
    37  
    38  	io.WriteString(sz, "12345")
    39  	c.Check(sz.Size(), Equals, int64(5))
    40  	io.WriteString(sz, "12345")
    41  	c.Check(sz.Size(), Equals, int64(10))
    42  
    43  	sz.Reset()
    44  	c.Check(sz.Size(), Equals, int64(0))
    45  	io.WriteString(sz, "12345")
    46  	c.Check(sz.Size(), Equals, int64(5))
    47  }