| // Copyright 2021 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package impersonate |
| |
| import ( |
| "bytes" |
| "context" |
| "encoding/json" |
| "io/ioutil" |
| "net/http" |
| "testing" |
| |
| "google.golang.org/api/option" |
| ) |
| |
| func TestIDTokenSource(t *testing.T) { |
| ctx := context.Background() |
| tests := []struct { |
| name string |
| aud string |
| targetPrincipal string |
| wantErr bool |
| }{ |
| { |
| name: "missing aud", |
| targetPrincipal: "foo@project-id.iam.gserviceaccount.com", |
| wantErr: true, |
| }, |
| { |
| name: "missing targetPrincipal", |
| aud: "http://example.com/", |
| wantErr: true, |
| }, |
| { |
| name: "works", |
| aud: "http://example.com/", |
| targetPrincipal: "foo@project-id.iam.gserviceaccount.com", |
| wantErr: false, |
| }, |
| } |
| |
| for _, tt := range tests { |
| name := tt.name |
| t.Run(name, func(t *testing.T) { |
| idTok := "id-token" |
| client := &http.Client{ |
| Transport: RoundTripFn(func(req *http.Request) *http.Response { |
| resp := generateIDTokenResponse{ |
| Token: idTok, |
| } |
| b, err := json.Marshal(&resp) |
| if err != nil { |
| t.Fatalf("unable to marshal response: %v", err) |
| } |
| return &http.Response{ |
| StatusCode: 200, |
| Body: ioutil.NopCloser(bytes.NewReader(b)), |
| Header: make(http.Header), |
| } |
| }), |
| } |
| ts, err := IDTokenSource(ctx, IDTokenConfig{ |
| Audience: tt.aud, |
| TargetPrincipal: tt.targetPrincipal, |
| }, option.WithHTTPClient(client)) |
| if tt.wantErr && err != nil { |
| return |
| } |
| if err != nil { |
| t.Fatal(err) |
| } |
| tok, err := ts.Token() |
| if err != nil { |
| t.Fatal(err) |
| } |
| if tok.AccessToken != idTok { |
| t.Fatalf("got %q, want %q", tok.AccessToken, idTok) |
| } |
| }) |
| } |
| } |