public void DisallowedSecondRootFieldWithinDirective()
{
// arrange
Schema schema = ValidationUtils.CreateSchema();
DocumentNode query = Parser.Default.Parse(@"
subscription sub {
...multipleSubscriptions
}
fragment multipleSubscriptions on Subscription {
newMessage {
body
sender
}
disallowedSecondRootField
}
");
// act
var validator = new SubscriptionSingleRootFieldRule();
QueryValidationResult result = validator.Validate(schema, query);
// assert
Assert.True(result.HasErrors);
Assert.Collection(result.Errors,
t => Assert.Equal(
$"Subscription operation `sub` must " +
"have exactly one root field.", t.Message));
}
public void DisallowedIntrospectionField()
{
// arrange
Schema schema = ValidationUtils.CreateSchema();
DocumentNode query = Parser.Default.Parse(@"
subscription sub {
newMessage {
body
sender
}
__typename
}
");
// act
var validator = new SubscriptionSingleRootFieldRule();
QueryValidationResult result = validator.Validate(schema, query);
// assert
Assert.True(result.HasErrors);
Assert.Collection(result.Errors,
t => Assert.Equal(
$"Subscription operation `sub` must " +
"have exactly one root field.", t.Message));
}
public void SubscriptionWithOneRootField()
{
// arrange
Schema schema = ValidationUtils.CreateSchema();
DocumentNode query = Parser.Default.Parse(@"
subscription sub {
newMessage {
body
sender
}
}
");
// act
var validator = new SubscriptionSingleRootFieldRule();
QueryValidationResult result = validator.Validate(schema, query);
// assert
Assert.False(result.HasErrors);
}
