added backward compatability code

cmd/wallet-sdk-gomobile/openid4ci/credentialconfigurations.go

@@ -14,13 +14,30 @@ import (
 // SupportedCredentials represents the credentials (types and formats) that an issuer can issue.
 type SupportedCredentials struct {
 	credentialConfigurations map[issuer.CredentialConfigurationID]*issuer.CredentialConfigurationSupported
+	// credentialConfigurationsList added for backward compatability with iOS and Android integration test code.
+	// Deprecated.
+	// Use credentialConfigurations instead.
+	credentialConfigurationsList []*issuer.CredentialConfigurationSupported
 }
 
 // Length returns the number of SupportedCredentials contained within this object.
 func (s *SupportedCredentials) Length() int {
 	return len(s.credentialConfigurations)
 }
 
+// AtIndex returns the SupportedCredential at the given index.
+// If the index passed in is out of bounds, then nil is returned.
+// Deprecated.
+// Use CredentialConfigurationSupported instead.
+func (s *SupportedCredentials) AtIndex(index int) *SupportedCredential {
+	maxIndex := len(s.credentialConfigurationsList) - 1
+	if index > maxIndex || index < 0 {
+		return nil
+	}
+
+	return &SupportedCredential{credentialConfigurationSupported: s.credentialConfigurationsList[index]}
+}
+
 // CredentialConfigurationSupported returns the SupportedCredential by given credentialConfigurationID.
 // If credentialConfigurationID is unknown, then nil is returned.
 func (s *SupportedCredentials) CredentialConfigurationSupported(

cmd/wallet-sdk-gomobile/openid4ci/issuermetadata.go

@@ -23,7 +23,16 @@ func (i *IssuerMetadata) CredentialIssuer() string {
 // SupportedCredentials returns an object that can be used to determine the types of
 // credentials that the issuer supports issuance of.
 func (i *IssuerMetadata) SupportedCredentials() *SupportedCredentials {
-	return &SupportedCredentials{credentialConfigurations: i.issuerMetadata.CredentialConfigurationsSupported}
+	supportedCredentials := &SupportedCredentials{
+		credentialConfigurations: i.issuerMetadata.CredentialConfigurationsSupported,
+	}
+
+	for _, credentialConf := range i.issuerMetadata.CredentialConfigurationsSupported {
+		supportedCredentials.credentialConfigurationsList = append(
+			supportedCredentials.credentialConfigurationsList, credentialConf)
+	}
+
+	return supportedCredentials
 }
 
 // LocalizedIssuerDisplays returns an object that contains display information for the issuer in various locales.

cmd/wallet-sdk-gomobile/openid4ci/issuermetadata_test.go

@@ -70,6 +70,7 @@ func TestIssuerMetadata(t *testing.T) {
 	credentialConfigurationsSupported := issuerMetadata.SupportedCredentials()
 	require.NotNil(t, credentialConfigurationsSupported)
 	require.Equal(t, 1, credentialConfigurationsSupported.Length())
+	require.NotNil(t, credentialConfigurationsSupported.AtIndex(0))
 
 	credentialConfigurationSupported := credentialConfigurationsSupported.
 		CredentialConfigurationSupported("PermanentResidentCard_jwt_vc_json-ld_v1")

cmd/wallet-sdk-gomobile/openid4ci/walletinitiatedinteraction_test.go

@@ -58,6 +58,7 @@ func TestWalletInitiatedInteraction_Flow(t *testing.T) {
 
 	supportedCredentials := issuerMetadata.SupportedCredentials()
 	require.Equal(t, 1, supportedCredentials.Length())
+	require.NotNil(t, supportedCredentials.AtIndex(0))
 
 	prc := supportedCredentials.CredentialConfigurationSupported("PermanentResidentCard_jwt_vc_json-ld_v1")