test(configuration): add some additional coverage (#5485)

Signed-off-by: James Elliott <james-d-elliott@users.noreply.github.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/internal/configuration/decode_hooks.go b/internal/configuration/decode_hooks.go
index 2bcfb614c..b07be7412 100644
--- a/internal/configuration/decode_hooks.go
+++ b/internal/configuration/decode_hooks.go
@@ -634,11 +634,11 @@ func StringToPasswordDigestHookFunc() mapstructure.DecodeHookFuncType {
 
 		var result *schema.PasswordDigest
 
-		if !strings.HasPrefix(dataStr, "$") {
-			dataStr = fmt.Sprintf(plaintext.EncodingFmt, plaintext.AlgIdentifierPlainText, dataStr)
-		}
-
 		if dataStr != "" {
+			if !strings.HasPrefix(dataStr, "$") {
+				dataStr = fmt.Sprintf(plaintext.EncodingFmt, plaintext.AlgIdentifierPlainText, dataStr)
+			}
+
 			if result, err = schema.DecodePasswordDigest(dataStr); err != nil {
 				return nil, fmt.Errorf(errFmtDecodeHookCouldNotParse, dataStr, prefixType, expectedType.String(), err)
 			}