def test_fragment():
query = gql("""
query UseFragment {
luke: human(id: "1000") {
...HumanFragment
}
leia: human(id: "1003") {
...HumanFragment
}
}
fragment HumanFragment on Human {
name
homePlanet
}
""")
result = {
"luke": {
"name": "Luke Skywalker",
"homePlanet": "Tatooine"
},
"leia": {
"name": "Leia Organa",
"homePlanet": "Alderaan"
},
}
parsed_result = parse_result(StarWarsSchema, query, result)
assert result == parsed_result
def test_hero_name_and_friends_query():
query = gql("""
query HeroNameAndFriendsQuery {
hero {
id
friends {
name
}
name
}
}
""")
result = {
"hero": {
"id":
"2001",
"friends": [
{
"name": "Luke Skywalker"
},
{
"name": "Han Solo"
},
{
"name": "Leia Organa"
},
],
"name":
"R2-D2",
}
}
parsed_result = parse_result(StarWarsSchema, query, result)
assert result == parsed_result
def test_invalid_result_raise_error():
query = gql("""
{
hero {
id
}
}
""")
result = {"hero": 5}
with pytest.raises(GraphQLError) as exc_info:
parse_result(StarWarsSchema, query, result)
assert "Invalid result for container of field id: 5" in str(exc_info)
def test_return_none_if_result_is_none():
query = gql("""
query {
hero {
id
}
}
""")
result = None
assert parse_result(StarWarsSchema, query, result) is None
def test_fragment_not_found():
query = gql("""
query UseFragment {
luke: human(id: "1000") {
...HumanFragment
}
}
""")
result = {
"luke": {
"name": "Luke Skywalker",
"homePlanet": "Tatooine"
},
}
with pytest.raises(GraphQLError) as exc_info:
parse_result(StarWarsSchema, query, result)
assert 'Fragment "HumanFragment" not found in document!' in str(exc_info)
def test_null_result_is_allowed():
query = gql("""
query {
hero {
id
}
}
""")
result = {"hero": None}
parsed_result = parse_result(StarWarsSchema, query, result)
assert result == parsed_result
def test_key_not_found_in_result():
query = gql("""
{
hero {
id
}
}
""")
# Backend returned an invalid result without the hero key
# Should be impossible. In that case, we ignore the missing key
result = {}
parsed_result = parse_result(StarWarsSchema, query, result)
assert result == parsed_result
def test_inline_fragment():
query = gql("""
query UseFragment {
luke: human(id: "1000") {
... on Human {
name
homePlanet
}
}
}
""")
result = {
"luke": {
"name": "Luke Skywalker",
"homePlanet": "Tatooine"
},
}
parsed_result = parse_result(StarWarsSchema, query, result)
assert result == parsed_result
