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from typing import Any, Dict, Optional
import pytest
from graphql import (
GraphQLArgument,
GraphQLError,
GraphQLField,
GraphQLFloat,
GraphQLInt,
GraphQLNonNull,
GraphQLObjectType,
GraphQLScalarType,
GraphQLSchema,
)
from graphql.language import ValueNode
from graphql.utilities import value_from_ast_untyped
from gql import Client, gql
from gql.dsl import DSLSchema
from ..conftest import strip_braces_spaces
# Marking all tests in this file with the aiohttp marker
pytestmark = pytest.mark.aiohttp
def serialize_json(value: Any) -> Dict[str, Any]:
return value
def parse_json_value(value: Any) -> Any:
return value
def parse_json_literal(
value_node: ValueNode, variables: Optional[Dict[str, Any]] = None
) -> Any:
return value_from_ast_untyped(value_node, variables)
JsonScalar = GraphQLScalarType(
name="JSON",
serialize=serialize_json,
parse_value=parse_json_value,
parse_literal=parse_json_literal,
)
root_value = {
"players": [
{
"name": "John",
"level": 3,
"is_connected": True,
"score": 123.45,
"friends": ["Alex", "Alicia"],
},
{
"name": "Alex",
"level": 4,
"is_connected": False,
"score": 1337.69,
"friends": None,
},
]
}
def resolve_players(root, _info):
return root["players"]
queryType = GraphQLObjectType(
name="Query",
fields={"players": GraphQLField(JsonScalar, resolve=resolve_players)},
)
def resolve_add_player(root, _info, player):
print(f"player = {player!r}")
root["players"].append(player)
return {"players": root["players"]}
mutationType = GraphQLObjectType(
name="Mutation",
fields={
"addPlayer": GraphQLField(
JsonScalar,
args={"player": GraphQLArgument(GraphQLNonNull(JsonScalar))},
resolve=resolve_add_player,
)
},
)
schema = GraphQLSchema(query=queryType, mutation=mutationType)
def test_json_value_output():
client = Client(schema=schema, parse_results=True)
query = gql("query {players}")
result = client.execute(query, root_value=root_value)
print(result)
assert result["players"] == serialize_json(root_value["players"])
def test_json_value_input_in_ast():
client = Client(schema=schema)
query = gql(
"""
mutation adding_player {
addPlayer(player: {
name: "Tom",
level: 1,
is_connected: True,
score: 0,
friends: [
"John"
]
})
}"""
)
result = client.execute(query, root_value=root_value)
print(result)
players = result["addPlayer"]["players"]
assert players == serialize_json(root_value["players"])
assert players[-1]["name"] == "Tom"
def test_json_value_input_in_ast_with_variables():
print(f"{schema.type_map!r}")
client = Client(schema=schema)
# Note: we need to manually add the built-in types which
# are not present in the schema
schema.type_map["Int"] = GraphQLInt
schema.type_map["Float"] = GraphQLFloat
query = gql(
"""
mutation adding_player(
$name: String!,
$level: Int!,
$is_connected: Boolean,
$score: Float!,
$friends: [String!]!) {
addPlayer(player: {
name: $name,
level: $level,
is_connected: $is_connected,
score: $score,
friends: $friends,
})
}"""
)
query.variable_values = {
"name": "Barbara",
"level": 1,
"is_connected": False,
"score": 69,
"friends": ["Alex", "John"],
}
result = client.execute(query, root_value=root_value)
print(result)
players = result["addPlayer"]["players"]
assert players == serialize_json(root_value["players"])
assert players[-1]["name"] == "Barbara"
def test_json_value_input_in_dsl_argument():
ds = DSLSchema(schema)
new_player = {
"name": "Tim",
"level": 0,
"is_connected": False,
"score": 5,
"friends": ["Lea"],
}
query = ds.Mutation.addPlayer(player=new_player)
print(str(query))
assert (
strip_braces_spaces(str(query))
== """addPlayer(
player: {name: "Tim", level: 0, is_connected: false, score: 5, friends: ["Lea"]}
)"""
)
def test_none_json_value_input_in_dsl_argument():
ds = DSLSchema(schema)
with pytest.raises(GraphQLError) as exc_info:
ds.Mutation.addPlayer(player=None)
assert "Received Null value for a Non-Null type JSON." in str(exc_info.value)
def test_json_value_input_with_none_list_in_dsl_argument():
ds = DSLSchema(schema)
new_player = {
"name": "Bob",
"level": 9001,
"is_connected": True,
"score": 666.66,
"friends": None,
}
query = ds.Mutation.addPlayer(player=new_player)
print(str(query))
assert (
strip_braces_spaces(str(query))
== """addPlayer(
player: {name: "Bob", level: 9001, is_connected: true, score: 666.66, friends: null}
)"""
)
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