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from functools import partial
from graphql.validation import NoUnusedFragmentsRule
from .harness import assert_validation_errors
assert_errors = partial(assert_validation_errors, NoUnusedFragmentsRule)
assert_valid = partial(assert_errors, errors=[])
def describe_validate_no_unused_fragments():
def all_fragment_names_are_used():
assert_valid(
"""
{
human(id: 4) {
...HumanFields1
... on Human {
...HumanFields2
}
}
}
fragment HumanFields1 on Human {
name
...HumanFields3
}
fragment HumanFields2 on Human {
name
}
fragment HumanFields3 on Human {
name
}
"""
)
def all_fragment_names_are_used_by_multiple_operations():
assert_valid(
"""
query Foo {
human(id: 4) {
...HumanFields1
}
}
query Bar {
human(id: 4) {
...HumanFields2
}
}
fragment HumanFields1 on Human {
name
...HumanFields3
}
fragment HumanFields2 on Human {
name
}
fragment HumanFields3 on Human {
name
}
"""
)
def contains_unknown_fragments():
assert_errors(
"""
query Foo {
human(id: 4) {
...HumanFields1
}
}
query Bar {
human(id: 4) {
...HumanFields2
}
}
fragment HumanFields1 on Human {
name
...HumanFields3
}
fragment HumanFields2 on Human {
name
}
fragment HumanFields3 on Human {
name
}
fragment Unused1 on Human {
name
}
fragment Unused2 on Human {
name
}
""",
[
{
"message": "Fragment 'Unused1' is never used.",
"locations": [(22, 13)],
},
{
"message": "Fragment 'Unused2' is never used.",
"locations": [(25, 13)],
},
],
)
def contains_unknown_fragments_with_ref_cycle():
assert_errors(
"""
query Foo {
human(id: 4) {
...HumanFields1
}
}
query Bar {
human(id: 4) {
...HumanFields2
}
}
fragment HumanFields1 on Human {
name
...HumanFields3
}
fragment HumanFields2 on Human {
name
}
fragment HumanFields3 on Human {
name
}
fragment Unused1 on Human {
name
...Unused2
}
fragment Unused2 on Human {
name
...Unused1
}
""",
[
{
"message": "Fragment 'Unused1' is never used.",
"locations": [(22, 13)],
},
{
"message": "Fragment 'Unused2' is never used.",
"locations": [(26, 13)],
},
],
)
def contains_unknown_and_undefined_fragments():
assert_errors(
"""
query Foo {
human(id: 4) {
...bar
}
}
fragment foo on Human {
name
}
""",
[{"message": "Fragment 'foo' is never used.", "locations": [(7, 13)]}],
)
|
