Fix wrong import for method parameters with default value factories

.gitignore

@@ -5,5 +5,9 @@
 .packages
 .pub
 pubspec.lock
+build/
 
 coverage/
+
+# ignore generated mocks
+**/*.mocks.dart

lib/src/builder.dart

@@ -1233,8 +1233,9 @@ class _MockClassInfo {
       if (parameter.isNamed) pBuilder.named = true;
       if (parameter.defaultValueCode != null) {
         try {
-          pBuilder.defaultTo =
-              _expressionFromDartObject(parameter.computeConstantValue()!).code;
+          pBuilder.defaultTo = _expressionFromDartObject(
+                  parameter.computeConstantValue()!, parameter)
+              .code;
         } on _ReviveException catch (e) {
           final method = parameter.enclosingElement!;
           final clazz = method.enclosingElement!;
@@ -1248,11 +1249,13 @@ class _MockClassInfo {
   }
 
   /// Creates a code_builder [Expression] from [object], a constant object from
-  /// analyzer.
+  /// analyzer and [parameter], an optional [ParameterElement], when the
+  /// expression is created for a method parameter.
   ///
   /// This is very similar to Angular's revive code, in
   /// angular_compiler/analyzer/di/injector.dart.
-  Expression _expressionFromDartObject(DartObject object) {
+  Expression _expressionFromDartObject(DartObject object,
+      [ParameterElement? parameter]) {
     final constant = ConstantReader(object);
     if (constant.isNull) {
       return literalNull;
@@ -1318,7 +1321,10 @@ class _MockClassInfo {
         for (var pair in revivable.namedArguments.entries)
           pair.key: _expressionFromDartObject(pair.value)
       };
-      final type = referImported(name, _typeImport(object.type!.element));
+      final element = parameter != null && name != object.type!.element!.name
+          ? parameter.type.element
+          : object.type!.element;
+      final type = referImported(name, _typeImport(element));
       if (revivable.accessor.isNotEmpty) {
         return type.constInstanceNamed(
           revivable.accessor,

test/end2end/foo.dart

@@ -1,9 +1,18 @@
+import 'foo_sub.dart';
+
 class Foo<T> {
+  const Foo();
+
+  const factory Foo.sub() = FooSub2;
+
   String positionalParameter(int x) => 'Real';
   String namedParameter({required int x}) => 'Real';
   String get getter => 'Real';
   int operator +(int arg) => arg + 1;
   String parameterWithDefault([int x = 0]) => 'Real';
+  String parameterWithDefault2([Foo<int> x = const FooSub()]) => 'Real';
+  String parameterWithDefaultFactoryRedirect([Foo<T> x = const Foo.sub()]) =>
+      'Real';
   String? nullableMethod(int x) => 'Real';
   String? get nullableGetter => 'Real';
   String methodWithBarArg(Bar bar) => 'result';
@@ -13,8 +22,6 @@ class Foo<T> {
   Future<void>? returnsNullableFutureVoid() => Future.value();
 }
 
-class FooSub extends Foo<int> {}
-
 class Bar {}
 
 abstract class Baz {

test/end2end/foo_sub.dart

@@ -0,0 +1,9 @@
+import 'foo.dart';
+
+class FooSub extends Foo<int> {
+  const FooSub();
+}
+
+class FooSub2<T> extends Foo<T> {
+  const FooSub2();
+}

test/end2end/generated_mocks_test.dart

@@ -3,6 +3,7 @@ import 'package:mockito/mockito.dart';
 import 'package:test/test.dart';
 
 import 'foo.dart';
+import 'foo_sub.dart';
 import 'generated_mocks_test.mocks.dart';
 
 T dummyMethod<T>() => [1, 1.5].whereType<T>().first!;
@@ -66,6 +67,24 @@ void main() {
 
       when(foo.parameterWithDefault()).thenReturn('Default');
       expect(foo.parameterWithDefault(), equals('Default'));
+
+      const foo2 = FooSub();
+      when(foo.parameterWithDefault2(foo2)).thenReturn('Stubbed');
+      expect(foo.parameterWithDefault2(foo2), equals('Stubbed'));
+
+      when(foo.parameterWithDefault2()).thenReturn('Default');
+      expect(foo.parameterWithDefault2(), equals('Default'));
+    });
+
+    test(
+        'a method with a parameter with a default value factory redirect can be stubbed',
+        () {
+      const foo2 = FooSub2<int>();
+      when(foo.parameterWithDefaultFactoryRedirect(foo2)).thenReturn('Stubbed');
+      expect(foo.parameterWithDefaultFactoryRedirect(foo2), equals('Stubbed'));
+
+      when(foo.parameterWithDefaultFactoryRedirect()).thenReturn('Default');
+      expect(foo.parameterWithDefaultFactoryRedirect(), equals('Default'));
     });
 
     test('an inherited method can be stubbed', () {