diff --git a/test/shared/namespace_utils_test.dart b/test/shared/namespace_utils_test.dart
index 0fa7141e..ba767e89 100644
--- a/test/shared/namespace_utils_test.dart
+++ b/test/shared/namespace_utils_test.dart
@@ -312,6 +312,39 @@ void main() {
         );
       });
 
+      test('constructs namespaces with required and optional namespaces', () {
+        Map<String, Namespace> namespaces = NamespaceUtils.constructNamespaces(
+          availableAccounts: availableAccounts3,
+          availableMethods: availableMethods3,
+          availableEvents: availableEvents3,
+          requiredNamespaces: requiredNamespacesInAvailable3,
+          optionalNamespaces: optionalNamespacesInAvailable3,
+        );
+
+        expect(namespaces.length, 1);
+        expect(
+          namespaces['eip155']!.accounts,
+          availableAccounts3.toList(),
+        );
+        expect(
+          namespaces['eip155']!.methods,
+          availableMethods3.map((m) => m.split(':').last).toList(),
+        );
+        expect(
+          namespaces['eip155']!.events,
+          availableEvents3.map((m) => m.split(':').last).toList(),
+        );
+
+        expect(
+          SignApiValidatorUtils.isConformingNamespaces(
+            requiredNamespaces: requiredNamespacesInAvailable3,
+            namespaces: namespaces,
+            context: '',
+          ),
+          true,
+        );
+      });
+
       test('constructNamespaces trims off unrequested', () {
         final reqNamespace = {
           'eip155': const RequiredNamespace(
@@ -449,7 +482,7 @@ void main() {
           Errors.getSdkError(
             Errors.UNSUPPORTED_METHODS,
             context:
-                " namespaces methods don't satisfy requiredNamespaces methods for namespace2. Requested: [method3, method4], Supported: [method3]",
+                " namespaces methods don't satisfy requiredNamespaces methods for namespace1:chain1. Requested: [method1, method2, method3], Supported: [method1, method2]",
           ).message,
           Errors.getSdkError(
             Errors.UNSUPPORTED_EVENTS,
@@ -459,13 +492,12 @@ void main() {
           Errors.getSdkError(
             Errors.UNSUPPORTED_EVENTS,
             context:
-                " namespaces events don't satisfy requiredNamespaces events for namespace2. Requested: [event3, event4], Supported: [event3]",
+                " namespaces events don't satisfy requiredNamespaces events for namespace1:chain1. Requested: [event1, event2, event3], Supported: [event1, event2]",
           ).message,
         ];
 
         for (int i = 0; i < nonconforming.length; i++) {
-          Map<String, Namespace> namespaces =
-              NamespaceUtils.constructNamespaces(
+          final namespaces = NamespaceUtils.constructNamespaces(
             availableAccounts: availableAccounts,
             availableMethods: availableMethods,
             availableEvents: availableEvents,
diff --git a/test/shared/shared_test_values.dart b/test/shared/shared_test_values.dart
index 616594bd..67bcfcc1 100644
--- a/test/shared/shared_test_values.dart
+++ b/test/shared/shared_test_values.dart
@@ -135,7 +135,7 @@ final Map<String, RequiredNamespace> requiredNamespacesNonconformingMethods1 = {
 
 final Map<String, RequiredNamespace> requiredNamespacesNonconformingMethods2 = {
   'namespace1:chain1': const RequiredNamespace(
-    methods: ['method1', 'method2'],
+    methods: ['method1', 'method2', 'method3'],
     events: ['event1', 'event2'],
   ),
   'namespace2': const RequiredNamespace(
@@ -160,7 +160,7 @@ final Map<String, RequiredNamespace> requiredNamespacesNonconformingEvents1 = {
 final Map<String, RequiredNamespace> requiredNamespacesNonconformingEvents2 = {
   'namespace1:chain1': const RequiredNamespace(
     methods: ['method1', 'method2'],
-    events: ['event1', 'event2'],
+    events: ['event1', 'event2', 'event3'],
   ),
   'namespace2': const RequiredNamespace(
     chains: ['namespace2:chain1', 'namespace2:chain2'],
@@ -175,3 +175,61 @@ Map<String, RequiredNamespace> optionalNamespaces = {
     events: ['event5', 'event2'],
   ),
 };
+
+const sepolia = 'eip155:11155111';
+
+final Set<String> availableAccounts3 = {
+  '$sepolia:0x99999999999999999999999999',
+};
+
+final Set<String> availableMethods3 = {
+  '$sepolia:eth_sendTransaction',
+  '$sepolia:personal_sign',
+  '$sepolia:eth_signTypedData',
+  '$sepolia:eth_signTypedData_v4',
+  '$sepolia:eth_sign',
+};
+
+final Set<String> availableEvents3 = {
+  '$sepolia:chainChanged',
+  '$sepolia:accountsChanged',
+};
+
+final Map<String, RequiredNamespace> requiredNamespacesInAvailable3 = {
+  'eip155': const RequiredNamespace(
+    chains: [sepolia],
+    methods: ['eth_sendTransaction', 'personal_sign'],
+    events: ['chainChanged', 'accountsChanged'],
+  ),
+};
+
+final Map<String, RequiredNamespace> optionalNamespacesInAvailable3 = {
+  'eip155': const RequiredNamespace(chains: [
+    'eip155:1',
+    'eip155:5',
+    sepolia,
+    'eip155:137',
+    'eip155:80001',
+    'eip155:42220',
+    'eip155:44787',
+    'eip155:56',
+    'eip155:43114',
+    'eip155:42161',
+    'eip155:421613',
+    'eip155:10',
+    'eip155:420',
+    'eip155:8453'
+  ], methods: [
+    'eth_sendTransaction',
+    'personal_sign',
+    'eth_signTypedData',
+    'eth_signTypedData_v4',
+    'eth_sign'
+  ], events: [
+    'chainChanged',
+    'accountsChanged',
+    'message',
+    'disconnect',
+    'connect'
+  ]),
+};