detect_test.go

Documentation: cloud.google.com/go/internal/detect

     1  // Copyright 2021 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  //     https://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 detect
    16  
    17  import (
    18  	"context"
    19  	"testing"
    20  
    21  	"golang.org/x/oauth2/google"
    22  	"google.golang.org/api/option"
    23  )
    24  
    25  func TestIt(t *testing.T) {
    26  	tests := []struct {
    27  		name         string
    28  		projectID    string
    29  		env          map[string]string
    30  		adcProjectID string
    31  		want         string
    32  	}{
    33  		{
    34  			name:      "noop",
    35  			projectID: "noop",
    36  			want:      "noop",
    37  		},
    38  		{
    39  			name:      "environment project id",
    40  			projectID: projectIDSentinel,
    41  			env:       map[string]string{envProjectID: "environment-project-id"},
    42  			want:      "environment-project-id",
    43  		},
    44  		{
    45  			name:         "adc project id",
    46  			projectID:    projectIDSentinel,
    47  			adcProjectID: "adc-project-id",
    48  			want:         "adc-project-id",
    49  		},
    50  		{
    51  			name:      "emulator project id",
    52  			projectID: projectIDSentinel,
    53  			env:       map[string]string{"EMULATOR_HOST": "something"},
    54  			want:      "emulated-project",
    55  		},
    56  	}
    57  
    58  	for _, tc := range tests {
    59  		t.Run(tc.name, func(t *testing.T) {
    60  			envLookupFunc = func(k string) string {
    61  				if tc.env == nil {
    62  					return ""
    63  				}
    64  				return tc.env[k]
    65  			}
    66  			adcLookupFunc = func(context.Context, ...option.ClientOption) (*google.Credentials, error) {
    67  				return &google.Credentials{ProjectID: tc.adcProjectID}, nil
    68  			}
    69  
    70  			got, err := ProjectID(context.Background(), tc.projectID, "EMULATOR_HOST")
    71  			if err != nil {
    72  				t.Fatalf("unexpected error from ProjectID(): %v", err)
    73  			}
    74  			if got != tc.want {
    75  				t.Fatalf("ProjectID() = %q, want %q", got, tc.want)
    76  			}
    77  		})
    78  	}
    79  
    80  }
    81
View as plain text