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add modular navigator mock example to readme #207

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Jul 31, 2020
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add modular navigator mock example to readme #207

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18 changes: 15 additions & 3 deletions README.md
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Expand Up @@ -876,11 +876,23 @@ main() {
```
### Mock the navigation system

We though it would be interesting to provide a native way to mock the navigation system when used with `Modular.to` and `Modular.link`. To do this, you may just implement `IModularNavigator` and pass your implementation to `Modular.navigatorDelegate`.
We though it would be interesting to provide a native way to mock the navigation system when used with `Modular.to` and `Modular.link`. To do this, you may just implement `IModularNavigator` and pass your implementation to `Modular.navigatorDelegate`. This can be done using Mockito package, according to the following example.

```dart
// Modular.to and Modular.link will be called MyNavigatorMock implements!
Modular.navigatorDelegate = MyNavigatorMock();
class MyNavigatorMock extends Mock implements IModularNavigator {}

void main() {
setUpAll(() {
// Modular.to and Modular.link will be called MyNavigatorMock implements!
Modular.navigatorDelegate = MyNavigatorMock();
initModules([AppModule(), HomeModule()]);
});
testWidgets('HomePage has scaffold', (tester) async {
await tester.pumpWidget(buildTestableWidget(HomePage()));
final scaffoldFinder = find.byType(Scaffold);
expect(scaffoldFinder, findsOneWidget);
});
}
```

## DebugMode
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