TF-3864 Support pasting multiple address with multiple format mixed

Signed-off-by: dab246 <tdvu@linagora.com>

test/features/composer/presentation/extensions/list_address_extension_test.dart

@@ -0,0 +1,93 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:jmap_dart_client/jmap/mail/email/email_address.dart';
+import 'package:model/extensions/email_address_extension.dart';
+import 'package:tmail_ui_user/features/composer/presentation/extensions/list_address_extension.dart';
+
+void main() {
+  group('ListAddressExtension.toFilteredEmailAddressList', () {
+    test('removes existing emails and duplicates', () {
+      final addresses = [
+        'a@example.com',
+        'b@example.com',
+        'B@EXAMPLE.COM', // duplicate in different case
+        'c@example.com',
+      ];
+      final existingEmails = [
+        EmailAddress('B', 'b@example.com'),
+        EmailAddress('X', 'x@example.com'),
+      ];
+
+      final result = addresses.toFilteredEmailAddressList(existingEmails);
+
+      expect(result.map((e) => e.emailAddress), [
+        'a@example.com',
+        'c@example.com',
+      ]);
+    });
+
+    test('keeps all unique and non-existing emails', () {
+      final addresses = [
+        'a@example.com',
+        'b@example.com',
+        'c@example.com',
+      ];
+      final existingEmails = [
+        EmailAddress('Someone', 'z@example.com'),
+      ];
+
+      final result = addresses.toFilteredEmailAddressList(existingEmails);
+
+      expect(result.map((e) => e.emailAddress), [
+        'a@example.com',
+        'b@example.com',
+        'c@example.com',
+      ]);
+    });
+
+    test('skips invalid emails', () {
+      final addresses = [
+        'invalid-email',
+        'valid@example.com',
+      ];
+      final existingEmails = <EmailAddress>[];
+
+      final result = addresses.toFilteredEmailAddressList(existingEmails);
+
+      expect(result.length, 2);
+      expect(result[0].emailAddress, 'invalid-email');
+      expect(result[0].name, isNull);
+      expect(result[1].emailAddress, 'valid@example.com');
+    });
+
+    test('removes duplicates within the list', () {
+      final addresses = [
+        'a@example.com',
+        'A@EXAMPLE.COM', // duplicate in different case
+        'b@example.com',
+        'b@example.com',
+      ];
+      final existingEmails = <EmailAddress>[];
+
+      final result = addresses.toFilteredEmailAddressList(existingEmails);
+
+      expect(result.map((e) => e.emailAddress), [
+        'a@example.com',
+        'b@example.com',
+      ]);
+    });
+
+    test('removes addresses matching normalized existingEmails', () {
+      final addresses = [
+        '  A@Example.Com  ',
+        'b@example.com',
+      ];
+      final existingEmails = [
+        EmailAddress('A', 'a@example.com'),
+      ];
+
+      final result = addresses.toFilteredEmailAddressList(existingEmails);
+
+      expect(result.map((e) => e.emailAddress), ['b@example.com']);
+    });
+  });
+}

test/features/composer/presentation/extensions/list_named_address_extension_test.dart

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+import 'package:core/utils/mail/named_address.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:jmap_dart_client/jmap/mail/email/email_address.dart';
+import 'package:model/extensions/email_address_extension.dart';
+import 'package:tmail_ui_user/features/composer/presentation/extensions/list_named_address_extension.dart';
+
+void main() {
+  group('ListNamedAddressExtension.toFilteredEmailAddressList', () {
+    test('filters out emails already in existingEmails list', () {
+      final namedList = [
+        NamedAddress(name: 'A', address: 'a@example.com'),
+        NamedAddress(name: 'B', address: 'b@example.com'),
+        NamedAddress(name: 'C', address: 'c@example.com'),
+      ];
+
+      final existingEmails = [
+        EmailAddress('B', 'b@example.com'),
+      ];
+
+      final result = namedList.toFilteredEmailAddressList(existingEmails);
+
+      expect(
+        result.map((e) => e.emailAddress),
+        containsAll(['a@example.com', 'c@example.com']),
+      );
+      expect(
+        result.map((e) => e.emailAddress),
+        isNot(contains('b@example.com')),
+      );
+    });
+
+    test('removes duplicate emails within the same list', () {
+      final namedList = [
+        NamedAddress(name: 'A1', address: 'a@example.com'),
+        NamedAddress(name: 'A2', address: 'A@Example.com'),
+        // Duplicate with different case
+        NamedAddress(name: 'B', address: 'b@example.com'),
+      ];
+
+      final result = namedList.toFilteredEmailAddressList([]);
+
+      expect(result.length, 2);
+      expect(
+        result.map((e) => e.emailAddress),
+        containsAll(['a@example.com', 'b@example.com']),
+      );
+    });
+
+    test('returns empty list if all emails are either existing or duplicates',
+        () {
+      final namedList = [
+        NamedAddress(name: 'A', address: 'a@example.com'),
+        NamedAddress(name: 'A2', address: 'A@Example.com'),
+      ];
+
+      final existingEmails = [
+        EmailAddress('Existing A', 'a@example.com'),
+      ];
+
+      final result = namedList.toFilteredEmailAddressList(existingEmails);
+
+      expect(result, isEmpty);
+    });
+
+    test('handles emails with empty name fields', () {
+      final namedList = [
+        NamedAddress(name: '', address: 'test@example.com'),
+      ];
+
+      final result = namedList.toFilteredEmailAddressList([]);
+
+      expect(result.length, 1);
+      expect(result.first.emailAddress, 'test@example.com');
+    });
+  });
+}