compute_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
    16  
    17  import (
    18  	"context"
    19  	"net/http"
    20  	"net/http/httptest"
    21  	"strings"
    22  	"testing"
    23  )
    24  
    25  const metadataHostEnv = "GCE_METADATA_HOST"
    26  
    27  func TestComputeCredentials(t *testing.T) {
    28  	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
    29  		if !strings.Contains(r.URL.Path, identitySuffix) {
    30  			t.Errorf("got %q, want contains %q", r.URL.Path, identitySuffix)
    31  		}
    32  		if got, want := r.URL.Query().Get("audience"), "aud"; got != want {
    33  			t.Errorf("got %q, want %q", got, want)
    34  		}
    35  		if got, want := r.URL.Query().Get("format"), "full"; got != want {
    36  			t.Errorf("got %q, want %q", got, want)
    37  		}
    38  		if got, want := r.URL.Query().Get("licenses"), "TRUE"; got != want {
    39  			t.Errorf("got %q, want %q", got, want)
    40  		}
    41  		w.Write([]byte(`fake_token`))
    42  	}))
    43  	defer ts.Close()
    44  	t.Setenv(metadataHostEnv, strings.TrimPrefix(ts.URL, "http://"))
    45  	tp, err := computeCredentials(&Options{
    46  		Audience:           "aud",
    47  		ComputeTokenFormat: ComputeTokenFormatFullWithLicense,
    48  	})
    49  	if err != nil {
    50  		t.Fatalf("computeCredentials() = %v", err)
    51  	}
    52  	tok, err := tp.Token(context.Background())
    53  	if err != nil {
    54  		t.Fatalf("tp.Token() = %v", err)
    55  	}
    56  	if want := "fake_token"; tok.Value != want {
    57  		t.Errorf("got %q, want %q", tok.Value, want)
    58  	}
    59  }
    60  
    61  func TestComputeCredentials_Standard(t *testing.T) {
    62  	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
    63  		if !strings.Contains(r.URL.Path, identitySuffix) {
    64  			t.Errorf("got %q, want contains %q", r.URL.Path, identitySuffix)
    65  		}
    66  		if got, want := r.URL.Query().Get("audience"), "aud"; got != want {
    67  			t.Errorf("got %q, want %q", got, want)
    68  		}
    69  		if got, want := r.URL.Query().Get("format"), ""; got != want {
    70  			t.Errorf("got %q, want %q", got, want)
    71  		}
    72  		if got, want := r.URL.Query().Get("licenses"), ""; got != want {
    73  			t.Errorf("got %q, want %q", got, want)
    74  		}
    75  		w.Write([]byte(`fake_token`))
    76  	}))
    77  	defer ts.Close()
    78  	t.Setenv(metadataHostEnv, strings.TrimPrefix(ts.URL, "http://"))
    79  	tp, err := computeCredentials(&Options{
    80  		Audience:           "aud",
    81  		ComputeTokenFormat: ComputeTokenFormatStandard,
    82  	})
    83  	if err != nil {
    84  		t.Fatalf("computeCredentials() = %v", err)
    85  	}
    86  	tok, err := tp.Token(context.Background())
    87  	if err != nil {
    88  		t.Fatalf("tp.Token() = %v", err)
    89  	}
    90  	if want := "fake_token"; tok.Value != want {
    91  		t.Errorf("got %q, want %q", tok.Value, want)
    92  	}
    93  }
    94  
    95  func TestComputeCredentials_Invalid(t *testing.T) {
    96  	if _, err := computeCredentials(&Options{
    97  		Audience:     "aud",
    98  		CustomClaims: map[string]interface{}{"foo": "bar"},
    99  	}); err == nil {
   100  		t.Fatal("computeCredentials() = nil, expected non-nil error", err)
   101  	}
   102  }
   103
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