Fix #8168 - AWS secrets should not be exposed while running tests

pkg/repository/config/aws.go

@@ -34,6 +34,9 @@ import (
 	"github.com/pkg/errors"
 )
 
+// getS3CredentialsFunc is used to make testing more convenient
+var getS3CredentialsFunc = GetS3Credentials
+
 const (
 	// AWS specific environment variable
 	awsProfileEnvVar         = "AWS_PROFILE"
@@ -63,7 +66,7 @@ func GetS3ResticEnvVars(config map[string]string) (map[string]string, error) {
 	// GetS3ResticEnvVars reads the AWS config, from files and envs
 	// if needed assumes the role and returns the session credentials
 	// setting these variables emulates what would happen for example when using kube2iam
-	if creds, err := GetS3Credentials(config); err == nil && creds != nil {
+	if creds, err := getS3CredentialsFunc(config); err == nil && creds != nil {
 		result[awsKeyIDEnvVar] = creds.AccessKeyID
 		result[awsSecretKeyEnvVar] = creds.SecretAccessKey
 		result[awsSessTokenEnvVar] = creds.SessionToken

pkg/repository/config/aws_test.go

@@ -27,14 +27,18 @@ import (
 
 func TestGetS3ResticEnvVars(t *testing.T) {
 	testCases := []struct {
-		name     string
-		config   map[string]string
-		expected map[string]string
+		name             string
+		config           map[string]string
+		expected         map[string]string
+		getS3Credentials func(config map[string]string) (*aws.Credentials, error)
 	}{
 		{
 			name:     "when config is empty, no env vars are returned",
 			config:   map[string]string{},
 			expected: map[string]string{},
+			getS3Credentials: func(config map[string]string) (*aws.Credentials, error) {
+				return nil, nil
+			},
 		},
 		{
 			name: "when config contains profile key, profile env var is set with profile value",
@@ -53,16 +57,39 @@ func TestGetS3ResticEnvVars(t *testing.T) {
 			expected: map[string]string{
 				"AWS_SHARED_CREDENTIALS_FILE": "/tmp/credentials/path/to/secret",
 			},
+			getS3Credentials: func(config map[string]string) (*aws.Credentials, error) {
+				return nil, nil
+			},
 		},
 	}
 
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
+			// Mock GetS3Credentials
+			if tc.getS3Credentials != nil {
+				getS3CredentialsFunc = tc.getS3Credentials
+			} else {
+				getS3CredentialsFunc = GetS3Credentials
+			}
+
 			actual, err := GetS3ResticEnvVars(tc.config)
 
 			require.NoError(t, err)
 
-			require.Equal(t, tc.expected, actual)
+			// Avoid direct comparison of expected and actual to prevent exposing secrets.
+			// This may occur if the test doesn't set getS3Credentials func correctly.
+			if !reflect.DeepEqual(tc.expected, actual) {
+				t.Errorf("Expected and actual results do not match for test case %q", tc.name)
+				for key, value := range actual {
+					if expVal, err := tc.expected[key]; !err || expVal != value {
+						if actualVal, ok := actual[key]; !ok {
+							t.Errorf("Key %q is missing in actual result", key)
+						} else if expVal != actualVal {
+							t.Errorf("Key %q: expected value %q", key, expVal)
+						}
+					}
+				}
+			}
 		})
 	}
 }
@@ -117,6 +144,11 @@ func TestGetS3CredentialsCorrectlyUseProfile(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
+			// Ensure env variables do not set AWS config entries
+			t.Setenv("AWS_ACCESS_KEY_ID", "")
+			t.Setenv("AWS_SECRET_ACCESS_KEY", "")
+			t.Setenv("AWS_SHARED_CREDENTIALS_FILE", "")
+
 			tmpFile, err := os.CreateTemp("", "velero-test-aws-credentials")
 			defer os.Remove(tmpFile.Name())
 			if err != nil {
@@ -129,17 +161,18 @@ func TestGetS3CredentialsCorrectlyUseProfile(t *testing.T) {
 				t.Errorf("GetS3Credentials() error = %v", err)
 				return
 			}
+
 			tt.args.config["credentialsFile"] = tmpFile.Name()
 			got, err := GetS3Credentials(tt.args.config)
 			if (err != nil) != tt.wantErr {
 				t.Errorf("GetS3Credentials() error = %v, wantErr %v", err, tt.wantErr)
 				return
 			}
 			if !reflect.DeepEqual(got.AccessKeyID, tt.want.AccessKeyID) {
-				t.Errorf("GetS3Credentials() got = %v, want %v", got.AccessKeyID, tt.want.AccessKeyID)
+				t.Errorf("GetS3Credentials() want %v", tt.want.AccessKeyID)
 			}
 			if !reflect.DeepEqual(got.SecretAccessKey, tt.want.SecretAccessKey) {
-				t.Errorf("GetS3Credentials() got = %v, want %v", got.SecretAccessKey, tt.want.SecretAccessKey)
+				t.Errorf("GetS3Credentials() want %v", tt.want.SecretAccessKey)
 			}
 		})
 	}