func TestValidate_OverlappingFieldsCanBeMerged_ReturnTypesMustBeUnambiguous_ComparesDeepTypesIncludingList(t *testing.T) {
testutil.ExpectFailsRuleWithSchema(t, &schema, graphql.OverlappingFieldsCanBeMergedRule, `
{
connection {
...edgeID
edges {
node {
id: name
}
}
}
}
fragment edgeID on Connection {
edges {
node {
id
}
}
}
`, []gqlerrors.FormattedError{
testutil.RuleError(
`Fields "edges" conflict because subfields "node" conflict because subfields "id" conflict because `+
`id and name are different fields.`,
14, 11,
15, 13,
16, 15,
5, 13,
6, 15,
7, 17),
})
}
func TestValidate_OverlappingFieldsCanBeMerged_ReturnTypesMustBeUnambiguous_DisallowsDifferingDeepReturnTypesDespiteNoOverlap(t *testing.T) {
testutil.ExpectFailsRuleWithSchema(t, &schema, graphql.OverlappingFieldsCanBeMergedRule, `
{
someBox {
... on IntBox {
box: stringBox {
scalar
}
}
... on StringBox {
box: intBox {
scalar
}
}
}
}
`, []gqlerrors.FormattedError{
testutil.RuleError(
`Fields "box" conflict because subfields "scalar" conflict because they return conflicting types String and Int.`,
5, 15,
6, 17,
10, 15,
11, 17),
})
}
func TestValidate_OverlappingFieldsCanBeMerged_ReturnTypesMustBeUnambiguous_DisallowsDifferingReturnTypeNullabilityDespiteNoOverlap(t *testing.T) {
testutil.ExpectFailsRuleWithSchema(t, &schema, graphql.OverlappingFieldsCanBeMergedRule, `
{
someBox {
... on NonNullStringBox1 {
scalar
}
... on StringBox {
scalar
}
}
}
`, []gqlerrors.FormattedError{
testutil.RuleError(
`Fields "scalar" conflict because they return conflicting types String! and String.`,
5, 15,
8, 15),
})
}
func TestValidate_OverlappingFieldsCanBeMerged_ReturnTypesMustBeUnambiguous_ConflictingReturnTypesWhichPotentiallyOverlap(t *testing.T) {
// This is invalid since an object could potentially be both the Object
// type IntBox and the interface type NonNullStringBox1. While that
// condition does not exist in the current schema, the schema could
// expand in the future to allow this. Thus it is invalid.
testutil.ExpectFailsRuleWithSchema(t, &schema, graphql.OverlappingFieldsCanBeMergedRule, `
{
someBox {
...on IntBox {
scalar
}
...on NonNullStringBox1 {
scalar
}
}
}
`, []gqlerrors.FormattedError{
testutil.RuleError(
`Fields "scalar" conflict because they return conflicting types Int and String!.`,
5, 15,
8, 15),
})
}
func TestValidate_OverlappingFieldsCanBeMerged_ReturnTypesMustBeUnambiguous_DisallowsDifferingSubfields(t *testing.T) {
testutil.ExpectFailsRuleWithSchema(t, &schema, graphql.OverlappingFieldsCanBeMergedRule, `
{
someBox {
... on IntBox {
box: stringBox {
val: scalar
val: unrelatedField
}
}
... on StringBox {
box: stringBox {
val: scalar
}
}
}
}
`, []gqlerrors.FormattedError{
testutil.RuleError(
`Fields "val" conflict because scalar and unrelatedField are different fields.`,
6, 17,
7, 17),
})
}