test: add unit tests for ConditionMessage handling in messaging

Author: demolaf

packages/dart_firebase_admin/test/integration/messaging/messaging_test.dart

@@ -53,6 +53,21 @@ void main() {
         expect(messageId, matches(RegExp(r'^projects/.*/messages/.*$')));
       });
 
+      test('send(ConditionMessage, dryRun) returns a message ID', () async {
+        final messageId = await messaging.send(
+          ConditionMessage(
+            condition: "'foo-bar' in topics || 'baz' in topics",
+            notification: Notification(
+              title: 'Integration Test',
+              body: 'Testing ConditionMessage',
+            ),
+          ),
+          dryRun: true,
+        );
+
+        expect(messageId, matches(RegExp(r'^projects/.*/messages/.*$')));
+      });
+
       test('sendEach()', () async {
         final messages = [
           TopicMessage(
@@ -81,6 +96,36 @@ void main() {
         }
       });
 
+      test(
+        'sendEach() with mixed message types including ConditionMessage',
+        () async {
+          final messages = [
+            TopicMessage(
+              topic: 'foo-bar',
+              notification: Notification(title: 'Topic'),
+            ),
+            ConditionMessage(
+              condition: "'foo-bar' in topics || 'baz' in topics",
+              notification: Notification(title: 'Condition'),
+            ),
+          ];
+
+          final response = await messaging.sendEach(messages, dryRun: true);
+
+          expect(response.responses.length, equals(2));
+          expect(response.successCount, equals(2));
+          expect(response.failureCount, equals(0));
+
+          for (final resp in response.responses) {
+            expect(resp.success, isTrue);
+            expect(
+              resp.messageId,
+              matches(RegExp(r'^projects/.*/messages/.*$')),
+            );
+          }
+        },
+      );
+
       test('sendEach() validates empty messages list', () async {
         await expectLater(
           () => messaging.sendEach([]),

packages/dart_firebase_admin/test/unit/messaging/messaging_test.dart

@@ -187,6 +187,30 @@ void main() {
       );
     });
 
+    test(
+      'sends a ConditionMessage with condition set on the request',
+      () async {
+        when(
+          () => messages.send(any(), any()),
+        ).thenAnswer((_) => Future.value(fmc1.Message(name: 'test')));
+
+        const condition = "'foo-bar' in topics || 'baz' in topics";
+        final result = await messaging.send(
+          ConditionMessage(condition: condition),
+        );
+
+        expect(result, 'test');
+
+        final capture = verify(() => messages.send(captureAny(), captureAny()))
+          ..called(1);
+
+        final request = capture.captured.first as fmc1.SendMessageRequest;
+        expect(request.message?.condition, condition);
+        expect(request.message?.topic, isNull);
+        expect(request.message?.token, isNull);
+      },
+    );
+
     test('dryRun', () async {
       when(
         () => messages.send(any(), any()),