package config import ( "reflect" "testing" "github.com/mitchellh/packer/template/interpolate" ) func TestDecode(t *testing.T) { type Target struct { Name string Address string } cases := map[string]struct { Input []interface{} Output *Target Opts *DecodeOpts }{ "basic": { []interface{}{ map[string]interface{}{ "name": "bar", }, }, &Target{ Name: "bar", }, nil, }, "variables": { []interface{}{ map[string]interface{}{ "name": "{{user `name`}}", }, map[string]interface{}{ "packer_user_variables": map[string]string{ "name": "bar", }, }, }, &Target{ Name: "bar", }, nil, }, "filter": { []interface{}{ map[string]interface{}{ "name": "{{user `name`}}", "address": "{{user `name`}}", }, map[string]interface{}{ "packer_user_variables": map[string]string{ "name": "bar", }, }, }, &Target{ Name: "bar", Address: "{{user `name`}}", }, &DecodeOpts{ Interpolate: true, InterpolateFilter: &interpolate.RenderFilter{ Include: []string{"name"}, }, }, }, } for k, tc := range cases { var result Target err := Decode(&result, tc.Opts, tc.Input...) if err != nil { t.Fatalf("err: %s\n\n%s", k, err) } if !reflect.DeepEqual(&result, tc.Output) { t.Fatalf("bad:\n\n%#v\n\n%#v", &result, tc.Output) } } }