Comments (5)
budde377
commented on August 26, 2024
1
I think you need to mock the link. Take a look at how we test the underlying client https://github.com/zino-hofmann/graphql-flutter/blob/main/packages/graphql/test/graphql_client_test.dart
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budde377
commented on August 26, 2024
1
Under the hood, the generated method calls the basic query method, so it should be the same.
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budde377
commented on August 26, 2024
1
Amazing! Thanks for sharing your solution.
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Kiruel
commented on August 26, 2024
It's more for a basic query without the generated method.
For my method I need to pass a OptionsQueryGetEmailVerified? (the option generated by the lib). I don't think I can do the same of mock the link etc...
Btw if I resolve this I will probably make an example mock test for this. Could be really useful for others.
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Kiruel
commented on August 26, 2024
I finally find the way to test it ! Thanks again @budde377 !
So if I took my example the code should be:
@override
Future<bool> checkEmailVerified() async {
final result = await graphQLClient.queryGetEmailVerified();
if (result.parsedData != null) {
return Future.value(result.parsedData?.me.emailVerified);
} else {
throw MyCustomServerException();
}
}And the test:
group('checkEmailVerified', () {
test(
'should check if email verified and return boolean true when success',
() async {
// arrange
final tResponseData = 'get_email_verified_valid.json'.toFixture();
when(
() => link.request(any()),
).thenAnswer(
(_) => Stream.fromIterable([
Response(
data: tResponseData,
context: const Context().withEntry(
const HttpLinkResponseContext(
statusCode: 200,
headers: {'foo': 'bar'},
),
),
response: const {},
),
]),
);
// act
final result = await datasource.checkEmailVerified();
// assert
expect(result, true);
},
);
test(
'should return false when checkEmailVerified return false',
() async {
// arrange
final tResponseData = 'get_email_verified_wrong.json'.toFixture();
when(
() => link.request(any()),
).thenAnswer(
(_) => Stream.fromIterable([
Response(
data: tResponseData,
context: const Context().withEntry(
const HttpLinkResponseContext(
statusCode: 200,
headers: {'foo': 'bar'},
),
),
response: const {},
),
]),
);
// act
final result = await datasource.checkEmailVerified();
// assert
expect(result, false);
},
);
test(
'should throw MyCustomException when no coming from server',
() async {
// arrange
when(
() => link.request(any()),
).thenAnswer(
(_) => Stream.fromIterable([
Response(
context: const Context().withEntry(
const HttpLinkResponseContext(
statusCode: 200,
headers: {'foo': 'bar'},
),
),
response: const {},
),
]),
);
// act
final call = datasource.checkEmailVerified;
// assert
expect(
() => call(),
throwsA(isA<MyCustomServerException>()),
);
},
);
test(
'should throw a MyCustomServerException when a OperationException occur on graphql',
() async {
// arrange
when(
() => link.request(any()),
).thenThrow(
HttpLinkParserException(
originalException: null,
response: http.Response('', 400),
),
);
// act
final call = datasource.checkEmailVerified;
// assert
expect(
() => call(),
throwsA(isA<MyCustomServerException>()),
);
},
);
});With get_email_verified_wrong.json:
{
"me": {
"emailVerified": false,
"__typename": "Me"
},
"__typename": "GetEmailVerified"
}And the get_email_verified_valid.json:
{
"me": {
"emailVerified": true,
"__typename": "Me"
},
"__typename": "GetEmailVerified"
}from graphql_codegen.
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