open-nomad/plugins/base/plugin_test.go
2018-08-16 16:49:09 -07:00

157 lines
3.5 KiB
Go

package base
import (
"testing"
pb "github.com/golang/protobuf/proto"
plugin "github.com/hashicorp/go-plugin"
"github.com/hashicorp/nomad/nomad/structs"
"github.com/hashicorp/nomad/plugins/shared/hclspec"
"github.com/stretchr/testify/require"
"github.com/zclconf/go-cty/cty"
"github.com/zclconf/go-cty/cty/msgpack"
)
func TestBasePlugin_PluginInfo_GRPC(t *testing.T) {
t.Parallel()
require := require.New(t)
const (
apiVersion = "v0.1.0"
pluginVersion = "v0.2.1"
pluginName = "mock"
)
knownType := func() (*PluginInfoResponse, error) {
info := &PluginInfoResponse{
Type: PluginTypeDriver,
PluginApiVersion: apiVersion,
PluginVersion: pluginVersion,
Name: pluginName,
}
return info, nil
}
unknownType := func() (*PluginInfoResponse, error) {
info := &PluginInfoResponse{
Type: "bad",
PluginApiVersion: apiVersion,
PluginVersion: pluginVersion,
Name: pluginName,
}
return info, nil
}
mock := &MockPlugin{
PluginInfoF: knownType,
}
client, server := plugin.TestPluginGRPCConn(t, map[string]plugin.Plugin{
PluginTypeBase: &PluginBase{Impl: mock},
})
defer server.Stop()
defer client.Close()
raw, err := client.Dispense(PluginTypeBase)
if err != nil {
t.Fatalf("err: %s", err)
}
impl, ok := raw.(BasePlugin)
if !ok {
t.Fatalf("bad: %#v", raw)
}
resp, err := impl.PluginInfo()
require.NoError(err)
require.Equal(apiVersion, resp.PluginApiVersion)
require.Equal(pluginVersion, resp.PluginVersion)
require.Equal(pluginName, resp.Name)
require.Equal(PluginTypeDriver, resp.Type)
// Swap the implementation to return an unknown type
mock.PluginInfoF = unknownType
_, err = impl.PluginInfo()
require.Error(err)
require.Contains(err.Error(), "unknown type")
}
func TestBasePlugin_ConfigSchema(t *testing.T) {
t.Parallel()
require := require.New(t)
mock := &MockPlugin{
ConfigSchemaF: func() (*hclspec.Spec, error) {
return TestSpec, nil
},
}
client, server := plugin.TestPluginGRPCConn(t, map[string]plugin.Plugin{
PluginTypeBase: &PluginBase{Impl: mock},
})
defer server.Stop()
defer client.Close()
raw, err := client.Dispense(PluginTypeBase)
if err != nil {
t.Fatalf("err: %s", err)
}
impl, ok := raw.(BasePlugin)
if !ok {
t.Fatalf("bad: %#v", raw)
}
specOut, err := impl.ConfigSchema()
require.NoError(err)
require.True(pb.Equal(TestSpec, specOut))
}
func TestBasePlugin_SetConfig(t *testing.T) {
t.Parallel()
require := require.New(t)
var receivedData []byte
mock := &MockPlugin{
ConfigSchemaF: func() (*hclspec.Spec, error) {
return TestSpec, nil
},
SetConfigF: func(data []byte) error {
receivedData = data
return nil
},
}
client, server := plugin.TestPluginGRPCConn(t, map[string]plugin.Plugin{
PluginTypeBase: &PluginBase{Impl: mock},
})
defer server.Stop()
defer client.Close()
raw, err := client.Dispense(PluginTypeBase)
if err != nil {
t.Fatalf("err: %s", err)
}
impl, ok := raw.(BasePlugin)
if !ok {
t.Fatalf("bad: %#v", raw)
}
config := cty.ObjectVal(map[string]cty.Value{
"foo": cty.StringVal("v1"),
"bar": cty.NumberIntVal(1337),
"baz": cty.BoolVal(true),
})
cdata, err := msgpack.Marshal(config, config.Type())
require.NoError(err)
require.NoError(impl.SetConfig(cdata))
require.Equal(cdata, receivedData)
// Decode the value back
var actual TestConfig
require.NoError(structs.Decode(receivedData, &actual))
require.Equal("v1", actual.Foo)
require.EqualValues(1337, actual.Bar)
require.True(actual.Baz)
}