terraform/helper/plugin/grpc_provisioner_test.go

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package plugin
import (
"testing"
"unicode/utf8"
"github.com/golang/mock/gomock"
"github.com/hashicorp/terraform/helper/schema"
proto "github.com/hashicorp/terraform/internal/tfplugin5"
mockproto "github.com/hashicorp/terraform/plugin/mock_proto"
"github.com/hashicorp/terraform/terraform"
context "golang.org/x/net/context"
)
var _ proto.ProvisionerServer = (*GRPCProvisionerServer)(nil)
type validUTF8Matcher string
func (m validUTF8Matcher) Matches(x interface{}) bool {
resp := x.(*proto.ProvisionResource_Response)
return utf8.Valid([]byte(resp.Output))
}
func (m validUTF8Matcher) String() string {
return string(m)
}
func mockProvisionerServer(t *testing.T, c *gomock.Controller) *mockproto.MockProvisioner_ProvisionResourceServer {
server := mockproto.NewMockProvisioner_ProvisionResourceServer(c)
server.EXPECT().Send(
validUTF8Matcher("check for valid utf8"),
).Return(nil)
return server
}
// ensure that a provsioner cannot return invalid utf8 which isn't allowed in
// the grpc protocol.
func TestProvisionerInvalidUTF8(t *testing.T) {
p := &schema.Provisioner{
ConnSchema: map[string]*schema.Schema{
"foo": {
Type: schema.TypeString,
Optional: true,
},
},
Schema: map[string]*schema.Schema{
"foo": {
Type: schema.TypeInt,
Optional: true,
},
},
ApplyFunc: func(ctx context.Context) error {
out := ctx.Value(schema.ProvOutputKey).(terraform.UIOutput)
out.Output("invalid \xc3\x28\n")
return nil
},
}
ctrl := gomock.NewController(t)
defer ctrl.Finish()
srv := mockProvisionerServer(t, ctrl)
cfg := &proto.DynamicValue{
Msgpack: []byte("\x81\xa3foo\x01"),
}
conn := &proto.DynamicValue{
Msgpack: []byte("\x81\xa3foo\xa4host"),
}
provisionerServer := NewGRPCProvisionerServerShim(p)
req := &proto.ProvisionResource_Request{
Config: cfg,
Connection: conn,
}
if err := provisionerServer.ProvisionResource(req, srv); err != nil {
t.Fatal(err)
}
}