integration_test.go

Documentation: cloud.google.com/go/auth/credentials/idtoken

     1  // Copyright 2023 Google LLC
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package idtoken_test
    16  
    17  import (
    18  	"context"
    19  	"log"
    20  	"net/http"
    21  	"os"
    22  	"strings"
    23  	"testing"
    24  
    25  	"cloud.google.com/go/auth/credentials/idtoken"
    26  	"cloud.google.com/go/auth/httptransport"
    27  	"cloud.google.com/go/auth/internal/credsfile"
    28  	"cloud.google.com/go/auth/internal/testutil"
    29  )
    30  
    31  const (
    32  	aud = "http://example.com"
    33  )
    34  
    35  func TestNewCredentials_CredentialsFile(t *testing.T) {
    36  	testutil.IntegrationTestCheck(t)
    37  	ctx := context.Background()
    38  	ts, err := idtoken.NewCredentials(&idtoken.Options{
    39  		Audience:        "http://example.com",
    40  		CredentialsFile: os.Getenv(credsfile.GoogleAppCredsEnvVar),
    41  	})
    42  	if err != nil {
    43  		t.Fatalf("unable to create credentials: %v", err)
    44  	}
    45  	tok, err := ts.Token(ctx)
    46  	if err != nil {
    47  		t.Fatalf("unable to retrieve Token: %v", err)
    48  	}
    49  	req := &http.Request{Header: make(http.Header)}
    50  	httptransport.SetAuthHeader(tok, req)
    51  	if !strings.HasPrefix(req.Header.Get("Authorization"), "Bearer ") {
    52  		t.Fatalf("token should sign requests with Bearer Authorization header")
    53  	}
    54  	validTok, err := idtoken.Validate(context.Background(), tok.Value, aud)
    55  	if err != nil {
    56  		t.Fatalf("token validation failed: %v", err)
    57  	}
    58  	if validTok.Audience != aud {
    59  		t.Fatalf("got %q, want %q", validTok.Audience, aud)
    60  	}
    61  }
    62  
    63  func TestNewCredentials_CredentialsJSON(t *testing.T) {
    64  	testutil.IntegrationTestCheck(t)
    65  	ctx := context.Background()
    66  	b, err := os.ReadFile(os.Getenv(credsfile.GoogleAppCredsEnvVar))
    67  	if err != nil {
    68  		log.Fatal(err)
    69  	}
    70  	creds, err := idtoken.NewCredentials(&idtoken.Options{
    71  		Audience:        aud,
    72  		CredentialsJSON: b,
    73  	})
    74  	if err != nil {
    75  		t.Fatalf("unable to create Client: %v", err)
    76  	}
    77  	tok, err := creds.Token(ctx)
    78  	if err != nil {
    79  		t.Fatalf("unable to retrieve Token: %v", err)
    80  	}
    81  	validTok, err := idtoken.Validate(context.Background(), tok.Value, aud)
    82  	if err != nil {
    83  		t.Fatalf("token validation failed: %v", err)
    84  	}
    85  	if validTok.Audience != aud {
    86  		t.Fatalf("got %q, want %q", validTok.Audience, aud)
    87  	}
    88  }
    89
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