package check

import (
	"encoding/json"
	"reflect"
	"testing"
)

// I8, ADR 0499 clause 2: the preview carries each named path's object a fetch's module trees answer (mesh-sdk
// buildstep.ModuleTree's paths), so the indexer computes the candidate's narrowed tree from them by the one function.
func TestAPreviewCarriesTheNamedPathsObjectsOfAFetchsModuleTrees(t *testing.T) {
	var f Fetched
	// As buildstep.ModuleTrees answers a module naming its paths: the named tree and the objects.
	raw := `{"workspace":"w","merge":"6666666666666666666666666666666666666666","trees":{".":{"tree":"named:aa","manifest":"` +
		"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb" + `","paths":{"src":"1111111111111111111111111111111111111111"}}}}`
	if err := json.Unmarshal([]byte(raw), &f); err != nil {
		t.Fatal(err)
	}
	pv, ok := PreviewOf(Pull{Repository: "novox/mesh-sdk", Head: "h", Trunk: "t"}, []Fetched{f})
	if !ok || !reflect.DeepEqual(pv.Modules["."].Paths, map[string]string{"src": "1111111111111111111111111111111111111111"}) || pv.Modules["."].Tree != "named:aa" {
		t.Errorf("preview = %+v, want the module's named tree and its objects", pv)
	}
}