automation-tests/common/libimage/runtime_test.go

102 lines
2.4 KiB
Go

package libimage
import (
"io/ioutil"
"os"
"testing"
"github.com/containers/common/pkg/config"
"github.com/containers/image/v5/types"
"github.com/containers/storage"
"github.com/containers/storage/pkg/reexec"
"github.com/stretchr/testify/require"
)
func TestMain(m *testing.M) {
if reexec.Init() {
return
}
os.Exit(m.Run())
}
type testNewRuntimeOptions struct {
registriesConfPath string
}
// Create a new Runtime that can be used for testing. The second return value
// is a clean-up function that should be called by users to make sure all
// temporary test data gets removed.
func testNewRuntime(t *testing.T, options ...testNewRuntimeOptions) (runtime *Runtime, cleanup func()) {
workdir, err := ioutil.TempDir("", "testStorageRuntime")
require.NoError(t, err)
storeOptions := &storage.StoreOptions{
RunRoot: workdir,
GraphRoot: workdir,
GraphDriverName: "vfs",
}
// Make sure that the tests do not use the host's registries.conf.
systemContext := &types.SystemContext{
SystemRegistriesConfPath: "testdata/registries.conf",
SystemRegistriesConfDirPath: "/dev/null",
}
if len(options) == 1 && options[0].registriesConfPath != "" {
systemContext.SystemRegistriesConfPath = options[0].registriesConfPath
}
runtime, err = RuntimeFromStoreOptions(&RuntimeOptions{SystemContext: systemContext}, storeOptions)
require.NoError(t, err)
tmpd, err := tmpdir()
require.NoError(t, err)
require.Equal(t, runtime.systemContext.BigFilesTemporaryDir, tmpd)
cleanup = func() {
_ = runtime.Shutdown(true)
_ = os.RemoveAll(workdir)
}
sys := runtime.SystemContext()
require.NotNil(t, sys)
return runtime, cleanup
}
func TestTmpdir(t *testing.T) {
tmpStr := "TMPDIR"
tmp, tmpSet := os.LookupEnv(tmpStr)
confStr := "CONTAINERS_CONF"
conf, confSet := os.LookupEnv(confStr)
os.Setenv(confStr, "testdata/containers.conf")
_, err := config.Reload()
require.NoError(t, err)
tmpd, err := tmpdir()
require.NoError(t, err)
require.Equal(t, "/tmp/from/containers.conf", tmpd)
if confSet {
os.Setenv(confStr, conf)
} else {
os.Unsetenv(confStr)
}
_, err = config.Reload()
require.NoError(t, err)
os.Unsetenv(tmpStr)
tmpd, err = tmpdir()
require.NoError(t, err)
require.Equal(t, "/var/tmp", tmpd)
os.Setenv(tmpStr, "/tmp/test")
tmpd, err = tmpdir()
require.NoError(t, err)
require.Equal(t, "/tmp/test", tmpd)
if tmpSet {
os.Setenv(tmpStr, tmp)
} else {
os.Unsetenv(tmpStr)
}
}