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idtoken_test.go
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idtoken_test.go
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// 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"
"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: "[email protected]",
wantErr: true,
},
{
name: "missing targetPrincipal",
aud: "http://example.com/",
wantErr: true,
},
{
name: "works",
aud: "http://example.com/",
targetPrincipal: "[email protected]",
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: io.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)
}
})
}
}