Add methods for children testing in mock_data_snapshot.dart

Author: Bonny BUN

lib/src/mock_data_snapshot.dart

@@ -18,4 +18,47 @@ class MockDataSnapshot extends Mock implements DataSnapshot {
 
   @override
   bool get exists => _value != null;
+
+  @override
+  bool hasChild(String path) {
+    final value = _value;
+    if (value is Map) {
+      return value.containsKey(path);
+    } else if (value is List) {
+      int? index = int.tryParse(path);
+      if (index != null) {
+        return index >= 0 && index < value.length;
+      }
+    }
+    return false;
+  }
+
+  @override
+  DataSnapshot child(String path) {
+    final value = _value;
+    if (value is Map) {
+      return MockDataSnapshot(_ref.child(path), value[path]);
+    } else if (value is List) {
+      int? index = int.tryParse(path);
+      if (index != null && index >= 0 && index < value.length) {
+        return MockDataSnapshot(_ref.child("$index"), value[index]);
+      }
+    }
+    return MockDataSnapshot(_ref.child(path), null);
+  }
+
+  @override
+  Iterable<DataSnapshot> get children {
+    final value = _value;
+    if (value is Map) {
+      return value
+          .map((key, value) =>
+              MapEntry(key, MockDataSnapshot(_ref.child(key), value)))
+          .values;
+    } else if (value is List) {
+      var index = 0;
+      return value.map((e) => MockDataSnapshot(_ref.child("${index++}"), e));
+    }
+    return [];
+  }
 }

pubspec.yaml

@@ -2,7 +2,7 @@ name: firebase_database_mocks
 
 description: Fakes to write unit tests for FirebaseDatabase (real-time database).
 
-version: 0.5.0
+version: 0.6.0
 
 repository: https://github.com/sitatec/firebase_database_mocks.git
 homepage: https://github.com/sitatec/firebase_database_mocks.git
@@ -16,10 +16,9 @@ dependencies:
     sdk: flutter
   flutter_test:
     sdk: flutter
-  firebase_database: ^10.0.2
-  mockito: ^5.3.0
-  firebase_core_platform_interface: ^4.5.0
+  firebase_database: ^10.0.6
+  mockito: ^5.3.2
+  firebase_core_platform_interface: ^4.5.2
 
 dev_dependencies:
-
   flutter_lints: ^2.0.1