google: base account credential support

google/internal/externalaccount/filecredsource_test.go

@@ -0,0 +1,61 @@
+package externalaccount
+
+import (
+	"testing"
+)
+
+var testFileConfig = Config{
+	Audience:                       "32555940559.apps.googleusercontent.com",
+	SubjectTokenType:               "urn:ietf:params:oauth:token-type:jwt",
+	TokenURL:                       "http://localhost:8080/v1/token",
+	TokenInfoURL:                   "http://localhost:8080/v1/tokeninfo",
+	ServiceAccountImpersonationURL: "https://iamcredentials.googleapis.com/v1/projects/-/serviceAccounts/service-gcs-admin@$PROJECT_ID.iam.gserviceaccount.com:generateAccessToken",
+	ClientSecret:                   "notsosecret",
+	ClientID:                       "rbrgnognrhongo3bi4gb9ghg9g",
+}
+
+type fsTest struct {
+	name string
+	cs   CredentialSource
+	want string
+}
+
+var testFsUntyped = fsTest{
+	name: "UntypedFileSource",
+	cs: CredentialSource{
+		File: "../../testdata/externalaccount/3pi_cred.txt",
+	},
+	want: "street123",
+}
+var testFsTypeText = fsTest{
+	name: "TextFileSource",
+	cs: CredentialSource{
+		File:   "../../testdata/externalaccount/3pi_cred.txt",
+		Format: format{Type: fileTypeText},
+	},
+	want: "street123",
+}
+var testFsTypeJSON = fsTest{
+	name: "JSONFileSource",
+	cs: CredentialSource{
+		File:   "../../testdata/externalaccount/3pi_cred.json",
+		Format: format{Type: fileTypeJSON, SubjectTokenFieldName: "SubjToken"},
+	},
+	want: "321road",
+}
+var fileSourceTests = []fsTest{testFsUntyped, testFsTypeText, testFsTypeJSON}
+
+func TestRetrieveFileSubjectToken(t *testing.T) {
+	for _, test := range fileSourceTests {
+		tfc := testFileConfig
+		tfc.CredentialSource = test.cs
+
+		out, err := test.cs.instance().retrieveSubjectToken(&tfc)
+		if err != nil {
+			t.Errorf("Method retrieveSubjectToken for type fileCredentialSource in test %v failed; %e", test.name, err)
+		}
+		if out != test.want {
+			t.Errorf("Test %v for method retrieveSubjectToken for type fileCredentialSouce failed: expected %v but got %v", test.name, test.want, out)
+		}
+	}
+}