DockerCLI/opts/mount_test.go

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package opts
import (
"os"
"path/filepath"
"testing"
mounttypes "github.com/docker/docker/api/types/mount"
"gotest.tools/v3/assert"
is "gotest.tools/v3/assert/cmp"
)
func TestMountOptString(t *testing.T) {
mount := MountOpt{
values: []mounttypes.Mount{
{
Type: mounttypes.TypeBind,
Source: "/home/path",
Target: "/target",
},
{
Type: mounttypes.TypeVolume,
Source: "foo",
Target: "/target/foo",
},
},
}
expected := "bind /home/path /target, volume foo /target/foo"
assert.Check(t, is.Equal(expected, mount.String()))
}
func TestMountRelative(t *testing.T) {
for _, testcase := range []struct {
name string
path string
bind string
}{
{
name: "Current path",
path: ".",
bind: "type=bind,source=.,target=/target",
}, {
name: "Current path with slash",
path: "./",
bind: "type=bind,source=./,target=/target",
},
} {
t.Run(testcase.name, func(t *testing.T) {
var mount MountOpt
assert.NilError(t, mount.Set(testcase.bind))
mounts := mount.Value()
assert.Assert(t, is.Len(mounts, 1))
abs, err := filepath.Abs(testcase.path)
assert.NilError(t, err)
assert.Check(t, is.DeepEqual(mounttypes.Mount{
Type: mounttypes.TypeBind,
Source: abs,
Target: "/target",
}, mounts[0]))
})
}
}
func TestMountOptSetBindNoErrorBind(t *testing.T) {
for _, testcase := range []string{
// tests several aliases that should have same result.
"type=bind,target=/target,source=/source",
"type=bind,src=/source,dst=/target",
"type=bind,source=/source,dst=/target",
"type=bind,src=/source,target=/target",
} {
var mount MountOpt
assert.NilError(t, mount.Set(testcase))
mounts := mount.Value()
assert.Assert(t, is.Len(mounts, 1))
assert.Check(t, is.DeepEqual(mounttypes.Mount{
Type: mounttypes.TypeBind,
Source: "/source",
Target: "/target",
}, mounts[0]))
}
}
func TestMountOptSetVolumeNoError(t *testing.T) {
for _, testcase := range []string{
// tests several aliases that should have same result.
"type=volume,target=/target,source=/source",
"type=volume,src=/source,dst=/target",
"type=volume,source=/source,dst=/target",
"type=volume,src=/source,target=/target",
} {
var mount MountOpt
assert.NilError(t, mount.Set(testcase))
mounts := mount.Value()
assert.Assert(t, is.Len(mounts, 1))
assert.Check(t, is.DeepEqual(mounttypes.Mount{
Type: mounttypes.TypeVolume,
Source: "/source",
Target: "/target",
}, mounts[0]))
}
}
// TestMountOptDefaultType ensures that a mount without the type defaults to a
// volume mount.
func TestMountOptDefaultType(t *testing.T) {
var mount MountOpt
assert.NilError(t, mount.Set("target=/target,source=/foo"))
assert.Check(t, is.Equal(mounttypes.TypeVolume, mount.values[0].Type))
}
func TestMountOptSetErrorNoTarget(t *testing.T) {
var mount MountOpt
assert.Error(t, mount.Set("type=volume,source=/foo"), "target is required")
}
func TestMountOptSetErrorInvalidKey(t *testing.T) {
var mount MountOpt
assert.Error(t, mount.Set("type=volume,bogus=foo"), "unexpected key 'bogus' in 'bogus=foo'")
}
func TestMountOptSetErrorInvalidField(t *testing.T) {
var mount MountOpt
assert.Error(t, mount.Set("type=volume,bogus"), "invalid field 'bogus' must be a key=value pair")
}
func TestMountOptSetErrorInvalidReadOnly(t *testing.T) {
var mount MountOpt
assert.Error(t, mount.Set("type=volume,readonly=no"), "invalid value for readonly: no")
assert.Error(t, mount.Set("type=volume,readonly=invalid"), "invalid value for readonly: invalid")
}
func TestMountOptDefaultEnableReadOnly(t *testing.T) {
var m MountOpt
assert.NilError(t, m.Set("type=bind,target=/foo,source=/foo"))
assert.Check(t, !m.values[0].ReadOnly)
m = MountOpt{}
assert.NilError(t, m.Set("type=bind,target=/foo,source=/foo,readonly"))
assert.Check(t, m.values[0].ReadOnly)
m = MountOpt{}
assert.NilError(t, m.Set("type=bind,target=/foo,source=/foo,readonly=1"))
assert.Check(t, m.values[0].ReadOnly)
m = MountOpt{}
assert.NilError(t, m.Set("type=bind,target=/foo,source=/foo,readonly=true"))
assert.Check(t, m.values[0].ReadOnly)
m = MountOpt{}
assert.NilError(t, m.Set("type=bind,target=/foo,source=/foo,readonly=0"))
assert.Check(t, !m.values[0].ReadOnly)
}
func TestMountOptVolumeNoCopy(t *testing.T) {
var m MountOpt
assert.NilError(t, m.Set("type=volume,target=/foo,volume-nocopy"))
assert.Check(t, is.Equal("", m.values[0].Source))
m = MountOpt{}
assert.NilError(t, m.Set("type=volume,target=/foo,source=foo"))
assert.Check(t, m.values[0].VolumeOptions == nil)
m = MountOpt{}
assert.NilError(t, m.Set("type=volume,target=/foo,source=foo,volume-nocopy=true"))
assert.Check(t, m.values[0].VolumeOptions != nil)
assert.Check(t, m.values[0].VolumeOptions.NoCopy)
m = MountOpt{}
assert.NilError(t, m.Set("type=volume,target=/foo,source=foo,volume-nocopy"))
assert.Check(t, m.values[0].VolumeOptions != nil)
assert.Check(t, m.values[0].VolumeOptions.NoCopy)
m = MountOpt{}
assert.NilError(t, m.Set("type=volume,target=/foo,source=foo,volume-nocopy=1"))
assert.Check(t, m.values[0].VolumeOptions != nil)
assert.Check(t, m.values[0].VolumeOptions.NoCopy)
}
func TestMountOptTypeConflict(t *testing.T) {
var m MountOpt
assert.ErrorContains(t, m.Set("type=bind,target=/foo,source=/foo,volume-nocopy=true"), "cannot mix")
assert.ErrorContains(t, m.Set("type=volume,target=/foo,source=/foo,bind-propagation=rprivate"), "cannot mix")
}
func TestMountOptSetTmpfsNoError(t *testing.T) {
for _, testcase := range []string{
// tests several aliases that should have same result.
"type=tmpfs,target=/target,tmpfs-size=1m,tmpfs-mode=0700",
"type=tmpfs,target=/target,tmpfs-size=1MB,tmpfs-mode=700",
} {
var mount MountOpt
assert.NilError(t, mount.Set(testcase))
mounts := mount.Value()
assert.Assert(t, is.Len(mounts, 1))
assert.Check(t, is.DeepEqual(mounttypes.Mount{
Type: mounttypes.TypeTmpfs,
Target: "/target",
TmpfsOptions: &mounttypes.TmpfsOptions{
SizeBytes: 1024 * 1024, // not 1000 * 1000
Mode: os.FileMode(0o700),
},
}, mounts[0]))
}
}
func TestMountOptSetTmpfsError(t *testing.T) {
var m MountOpt
assert.ErrorContains(t, m.Set("type=tmpfs,target=/foo,tmpfs-size=foo"), "invalid value for tmpfs-size")
assert.ErrorContains(t, m.Set("type=tmpfs,target=/foo,tmpfs-mode=foo"), "invalid value for tmpfs-mode")
assert.ErrorContains(t, m.Set("type=tmpfs"), "target is required")
}
func TestMountOptSetBindNonRecursive(t *testing.T) {
var mount MountOpt
assert.NilError(t, mount.Set("type=bind,source=/foo,target=/bar,bind-nonrecursive"))
assert.Check(t, is.DeepEqual([]mounttypes.Mount{
{
Type: mounttypes.TypeBind,
Source: "/foo",
Target: "/bar",
BindOptions: &mounttypes.BindOptions{
NonRecursive: true,
},
},
}, mount.Value()))
}
func TestMountOptSetBindRecursive(t *testing.T) {
t.Run("enabled", func(t *testing.T) {
var mount MountOpt
assert.NilError(t, mount.Set("type=bind,source=/foo,target=/bar,bind-recursive=enabled"))
assert.Check(t, is.DeepEqual([]mounttypes.Mount{
{
Type: mounttypes.TypeBind,
Source: "/foo",
Target: "/bar",
},
}, mount.Value()))
})
t.Run("disabled", func(t *testing.T) {
var mount MountOpt
assert.NilError(t, mount.Set("type=bind,source=/foo,target=/bar,bind-recursive=disabled"))
assert.Check(t, is.DeepEqual([]mounttypes.Mount{
{
Type: mounttypes.TypeBind,
Source: "/foo",
Target: "/bar",
BindOptions: &mounttypes.BindOptions{
NonRecursive: true,
},
},
}, mount.Value()))
})
t.Run("writable", func(t *testing.T) {
var mount MountOpt
assert.Error(t, mount.Set("type=bind,source=/foo,target=/bar,bind-recursive=writable"),
"option 'bind-recursive=writable' requires 'readonly' to be specified in conjunction")
assert.NilError(t, mount.Set("type=bind,source=/foo,target=/bar,bind-recursive=writable,readonly"))
assert.Check(t, is.DeepEqual([]mounttypes.Mount{
{
Type: mounttypes.TypeBind,
Source: "/foo",
Target: "/bar",
ReadOnly: true,
BindOptions: &mounttypes.BindOptions{
ReadOnlyNonRecursive: true,
},
},
}, mount.Value()))
})
t.Run("readonly", func(t *testing.T) {
var mount MountOpt
assert.Error(t, mount.Set("type=bind,source=/foo,target=/bar,bind-recursive=readonly"),
"option 'bind-recursive=readonly' requires 'readonly' to be specified in conjunction")
assert.Error(t, mount.Set("type=bind,source=/foo,target=/bar,bind-recursive=readonly,readonly"),
"option 'bind-recursive=readonly' requires 'bind-propagation=rprivate' to be specified in conjunction")
assert.NilError(t, mount.Set("type=bind,source=/foo,target=/bar,bind-recursive=readonly,readonly,bind-propagation=rprivate"))
assert.Check(t, is.DeepEqual([]mounttypes.Mount{
{
Type: mounttypes.TypeBind,
Source: "/foo",
Target: "/bar",
ReadOnly: true,
BindOptions: &mounttypes.BindOptions{
ReadOnlyForceRecursive: true,
Propagation: mounttypes.PropagationRPrivate,
},
},
}, mount.Value()))
})
}