distribution/registry/storage/driver/filesystem/driver_test.go

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package filesystem
import (
"io/ioutil"
"os"
"reflect"
"testing"
storagedriver "github.com/docker/distribution/registry/storage/driver"
"github.com/docker/distribution/registry/storage/driver/testsuites"
. "gopkg.in/check.v1"
)
// Hook up gocheck into the "go test" runner.
func Test(t *testing.T) { TestingT(t) }
func init() {
root, err := ioutil.TempDir("", "driver-")
if err != nil {
panic(err)
}
defer os.Remove(root)
driver, err := FromParameters(map[string]interface{}{
"rootdirectory": root,
})
if err != nil {
panic(err)
}
testsuites.RegisterSuite(func() (storagedriver.StorageDriver, error) {
return driver, nil
}, testsuites.NeverSkip)
}
func TestFromParametersImpl(t *testing.T) {
tests := []struct {
params map[string]interface{} // techincally the yaml can contain anything
expected DriverParameters
pass bool
}{
// check we use default threads and root dirs
{
params: map[string]interface{}{},
expected: DriverParameters{
RootDirectory: defaultRootDirectory,
MaxThreads: defaultMaxThreads,
},
pass: true,
},
// Testing initiation with a string maxThreads which can't be parsed
{
params: map[string]interface{}{
"maxthreads": "fail",
},
expected: DriverParameters{},
pass: false,
},
{
params: map[string]interface{}{
"maxthreads": "100",
},
expected: DriverParameters{
RootDirectory: defaultRootDirectory,
MaxThreads: uint64(100),
},
pass: true,
},
{
params: map[string]interface{}{
"maxthreads": 100,
},
expected: DriverParameters{
RootDirectory: defaultRootDirectory,
MaxThreads: uint64(100),
},
pass: true,
},
// check that we use minimum thread counts
{
params: map[string]interface{}{
"maxthreads": 1,
},
expected: DriverParameters{
RootDirectory: defaultRootDirectory,
MaxThreads: minThreads,
},
pass: true,
},
}
for _, item := range tests {
params, err := fromParametersImpl(item.params)
if !item.pass {
// We only need to assert that expected failures have an error
if err == nil {
t.Fatalf("expected error configuring filesystem driver with invalid param: %+v", item.params)
}
continue
}
if err != nil {
t.Fatalf("unexpected error creating filesystem driver: %s", err)
}
// Note that we get a pointer to params back
if !reflect.DeepEqual(*params, item.expected) {
t.Fatalf("unexpected params from filesystem driver. expected %+v, got %+v", item.expected, params)
}
}
}