Files
docker-cli/components/engine/builder/dockerfile/internals_linux_test.go
Sebastiaan van Stijn 2096535fce Fixes for libcontainer changes
Libcontainer no longer provides placeholders for
unsupported platforms, which cause the Windows
builds to fail.

This patch moves features that are not supported
to platform-specific files.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: d1c34831e930c1f6b3de28cab3f4a358845a79d5
Component: engine
2018-01-18 10:08:12 +01:00

139 lines
3.3 KiB
Go

package dockerfile
import (
"os"
"path/filepath"
"testing"
"github.com/docker/docker/pkg/idtools"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestChownFlagParsing(t *testing.T) {
testFiles := map[string]string{
"passwd": `root:x:0:0::/bin:/bin/false
bin:x:1:1::/bin:/bin/false
wwwwww:x:21:33::/bin:/bin/false
unicorn:x:1001:1002::/bin:/bin/false
`,
"group": `root:x:0:
bin:x:1:
wwwwww:x:33:
unicorn:x:1002:
somegrp:x:5555:
othergrp:x:6666:
`,
}
// test mappings for validating use of maps
idMaps := []idtools.IDMap{
{
ContainerID: 0,
HostID: 100000,
Size: 65536,
},
}
remapped := idtools.NewIDMappingsFromMaps(idMaps, idMaps)
unmapped := &idtools.IDMappings{}
contextDir, cleanup := createTestTempDir(t, "", "builder-chown-parse-test")
defer cleanup()
if err := os.Mkdir(filepath.Join(contextDir, "etc"), 0755); err != nil {
t.Fatalf("error creating test directory: %v", err)
}
for filename, content := range testFiles {
createTestTempFile(t, filepath.Join(contextDir, "etc"), filename, content, 0644)
}
// positive tests
for _, testcase := range []struct {
name string
chownStr string
idMapping *idtools.IDMappings
expected idtools.IDPair
}{
{
name: "UIDNoMap",
chownStr: "1",
idMapping: unmapped,
expected: idtools.IDPair{UID: 1, GID: 1},
},
{
name: "UIDGIDNoMap",
chownStr: "0:1",
idMapping: unmapped,
expected: idtools.IDPair{UID: 0, GID: 1},
},
{
name: "UIDWithMap",
chownStr: "0",
idMapping: remapped,
expected: idtools.IDPair{UID: 100000, GID: 100000},
},
{
name: "UIDGIDWithMap",
chownStr: "1:33",
idMapping: remapped,
expected: idtools.IDPair{UID: 100001, GID: 100033},
},
{
name: "UserNoMap",
chownStr: "bin:5555",
idMapping: unmapped,
expected: idtools.IDPair{UID: 1, GID: 5555},
},
{
name: "GroupWithMap",
chownStr: "0:unicorn",
idMapping: remapped,
expected: idtools.IDPair{UID: 100000, GID: 101002},
},
{
name: "UserOnlyWithMap",
chownStr: "unicorn",
idMapping: remapped,
expected: idtools.IDPair{UID: 101001, GID: 101002},
},
} {
t.Run(testcase.name, func(t *testing.T) {
idPair, err := parseChownFlag(testcase.chownStr, contextDir, testcase.idMapping)
require.NoError(t, err, "Failed to parse chown flag: %q", testcase.chownStr)
assert.Equal(t, testcase.expected, idPair, "chown flag mapping failure")
})
}
// error tests
for _, testcase := range []struct {
name string
chownStr string
idMapping *idtools.IDMappings
descr string
}{
{
name: "BadChownFlagFormat",
chownStr: "bob:1:555",
idMapping: unmapped,
descr: "invalid chown string format: bob:1:555",
},
{
name: "UserNoExist",
chownStr: "bob",
idMapping: unmapped,
descr: "can't find uid for user bob: no such user: bob",
},
{
name: "GroupNoExist",
chownStr: "root:bob",
idMapping: unmapped,
descr: "can't find gid for group bob: no such group: bob",
},
} {
t.Run(testcase.name, func(t *testing.T) {
_, err := parseChownFlag(testcase.chownStr, contextDir, testcase.idMapping)
assert.EqualError(t, err, testcase.descr, "Expected error string doesn't match")
})
}
}