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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"
"testing"
. "gopkg.in/check.v1"
"gopkg.in/yaml.v2"
"github.com/snapcore/snapd/gadget/quantity"
)
func TestRun(t *testing.T) { TestingT(t) }
type sizeTestSuite struct{}
var _ = Suite(&sizeTestSuite{})
func (s *sizeTestSuite) TestIECString(c *C) {
for _, tc := range []struct {
size quantity.Size
exp string
}{
{512, "512 B"},
{1000, "1000 B"},
{1030, "1.01 KiB"},
{quantity.SizeKiB + 512, "1.50 KiB"},
{123 * quantity.SizeKiB, "123 KiB"},
{512 * quantity.SizeKiB, "512 KiB"},
{578 * quantity.SizeMiB, "578 MiB"},
{1*quantity.SizeGiB + 123*quantity.SizeMiB, "1.12 GiB"},
{1024 * quantity.SizeGiB, "1 TiB"},
{2 * 1024 * 1024 * 1024 * quantity.SizeGiB, "2048 PiB"},
} {
c.Check(tc.size.IECString(), Equals, tc.exp)
}
}
func (s *sizeTestSuite) TestUnmarshalYAMLSize(c *C) {
type foo struct {
Size quantity.Size `yaml:"size"`
}
for i, tc := range []struct {
s string
sz quantity.Size
err string
}{
{"1234", 1234, ""},
{"1234M", 1234 * quantity.SizeMiB, ""},
{"1234G", 1234 * quantity.SizeGiB, ""},
{"0", 0, ""},
{"a0M", 0, `cannot parse size "a0M": no numerical prefix.*`},
{"-123", 0, `cannot parse size "-123": size cannot be negative`},
{"123a", 0, `cannot parse size "123a": invalid suffix "a"`},
} {
c.Logf("tc: %v", i)
var f foo
err := yaml.Unmarshal([]byte(fmt.Sprintf("size: %s", tc.s)), &f)
if tc.err != "" {
c.Check(err, ErrorMatches, tc.err)
} else {
c.Check(err, IsNil)
c.Check(f.Size, Equals, tc.sz)
}
}
}
func (s *sizeTestSuite) TestSizeString(c *C) {
var pSize *quantity.Size
c.Check(pSize.String(), Equals, "unspecified")
for _, tc := range []struct {
size quantity.Size
exp string
}{
{512, "512"},
{1030, "1030"},
{quantity.SizeKiB + 512, "1536"},
{578 * quantity.SizeMiB, "606076928"},
} {
c.Check(tc.size.String(), Equals, tc.exp)
}
}
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