m3_lightmeter/test/data/light_sensor_service_test.dart

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import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:lightmeter/data/light_sensor_service.dart';
import 'package:mocktail/mocktail.dart';
import 'package:platform/platform.dart';
class _MockLocalPlatform extends Mock implements LocalPlatform {}
void main() {
TestWidgetsFlutterBinding.ensureInitialized();
late _MockLocalPlatform localPlatform;
late LightSensorService service;
const methodChannel = MethodChannel('system_feature');
// TODO: add event channel mock
//const eventChannel = EventChannel('light.eventChannel');
setUp(() {
localPlatform = _MockLocalPlatform();
service = LightSensorService(localPlatform);
});
tearDown(() {
TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
.setMockMethodCallHandler(methodChannel, null);
});
group(
'hasSensor()',
() {
test('true - Android', () async {
when(() => localPlatform.isAndroid).thenReturn(true);
TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
.setMockMethodCallHandler(methodChannel, null);
TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
.setMockMethodCallHandler(methodChannel, (methodCall) async {
switch (methodCall.method) {
case "sensor":
return true;
default:
return null;
}
});
expectLater(service.hasSensor(), completion(true));
});
test('false - Android', () async {
when(() => localPlatform.isAndroid).thenReturn(true);
TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
.setMockMethodCallHandler(methodChannel, null);
TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
.setMockMethodCallHandler(methodChannel, (methodCall) async {
switch (methodCall.method) {
case "sensor":
return false;
default:
return null;
}
});
expectLater(service.hasSensor(), completion(false));
});
test('null - Android', () async {
when(() => localPlatform.isAndroid).thenReturn(true);
TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
.setMockMethodCallHandler(methodChannel, null);
TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
.setMockMethodCallHandler(methodChannel, (methodCall) async {
switch (methodCall.method) {
case "sensor":
return null;
default:
return null;
}
});
expectLater(service.hasSensor(), completion(false));
});
test('false - iOS', () async {
when(() => localPlatform.isAndroid).thenReturn(false);
expectLater(service.hasSensor(), completion(false));
});
},
);
group('luxStream', () {
// test('Android', () async {
// when(() => localPlatform.isAndroid).thenReturn(true);
// expect(service.luxStream(), const Stream.empty());
// });
test('iOS', () async {
when(() => localPlatform.isAndroid).thenReturn(false);
expect(service.luxStream(), const Stream<int>.empty());
});
});
}