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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2019 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package quantity_test
import (
"fmt"
. "gopkg.in/check.v1"
"gopkg.in/yaml.v2"
"github.com/snapcore/snapd/gadget/quantity"
)
type offsetTestSuite struct{}
var _ = Suite(&offsetTestSuite{})
func (s *offsetTestSuite) TestIECString(c *C) {
for _, tc := range []struct {
offset quantity.Offset
exp string
}{
{512, "512 B"},
{1000, "1000 B"},
{1030, "1.01 KiB"},
{quantity.OffsetKiB + 512, "1.50 KiB"},
{123 * quantity.OffsetKiB, "123 KiB"},
{512 * quantity.OffsetKiB, "512 KiB"},
{578 * quantity.OffsetMiB, "578 MiB"},
{1024*quantity.OffsetMiB + 123*quantity.OffsetMiB, "1.12 GiB"},
{1024 * 1024 * quantity.OffsetMiB, "1 TiB"},
{2 * 1024 * 1024 * 1024 * 1024 * quantity.OffsetMiB, "2048 PiB"},
} {
c.Check(tc.offset.IECString(), Equals, tc.exp)
}
}
func (s *offsetTestSuite) TestUnmarshalYAMLSize(c *C) {
type foo struct {
Offset quantity.Offset `yaml:"offset"`
}
for i, tc := range []struct {
s string
sz quantity.Offset
err string
}{
{"1234", 1234, ""},
{"1234M", 1234 * quantity.OffsetMiB, ""},
{"1234G", 1234 * 1024 * quantity.OffsetMiB, ""},
{"0", 0, ""},
{"a0M", 0, `cannot parse offset "a0M": no numerical prefix.*`},
{"-123", 0, `cannot parse offset "-123": offset cannot be negative`},
{"123a", 0, `cannot parse offset "123a": invalid suffix "a"`},
} {
c.Logf("tc: %v", i)
var f foo
err := yaml.Unmarshal([]byte(fmt.Sprintf("offset: %s", tc.s)), &f)
if tc.err != "" {
c.Check(err, ErrorMatches, tc.err)
} else {
c.Check(err, IsNil)
c.Check(f.Offset, Equals, tc.sz)
}
}
}
func (s *offsetTestSuite) TestOffsetString(c *C) {
var pOffset *quantity.Offset
c.Check(pOffset.String(), Equals, "unspecified")
for _, tc := range []struct {
offset quantity.Offset
exp string
}{
{512, "512"},
{1030, "1030"},
{quantity.OffsetKiB + 512, "1536"},
{578 * quantity.OffsetMiB, "606076928"},
} {
c.Check(tc.offset.String(), Equals, tc.exp)
}
}
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