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from pytest import mark
from graphql import graphql, graphql_sync
from .star_wars_schema import star_wars_schema as schema
def describe_star_wars_query_tests():
def describe_basic_queries():
@mark.asyncio
async def correctly_identifies_r2_d2_as_hero_of_the_star_wars_saga():
source = """
query HeroNameQuery {
hero {
name
}
}
"""
result = await graphql(schema=schema, source=source)
assert result == ({"hero": {"name": "R2-D2"}}, None)
@mark.asyncio
async def accepts_positional_arguments_to_graphql():
source = """
query HeroNameQuery {
hero {
name
}
}
"""
result = await graphql(schema, source)
assert result == ({"hero": {"name": "R2-D2"}}, None)
sync_result = graphql_sync(schema, source)
assert sync_result == result
@mark.asyncio
async def allows_us_to_query_for_the_id_and_friends_of_r2_d2():
source = """
query HeroNameAndFriendsQuery {
hero {
id
name
friends {
name
}
}
}
"""
result = await graphql(schema=schema, source=source)
assert result == (
{
"hero": {
"id": "2001",
"name": "R2-D2",
"friends": [
{"name": "Luke Skywalker"},
{"name": "Han Solo"},
{"name": "Leia Organa"},
],
}
},
None,
)
def describe_nested_queries():
@mark.asyncio
async def allows_us_to_query_for_the_friends_of_friends_of_r2_d2():
source = """
query NestedQuery {
hero {
name
friends {
name
appearsIn
friends {
name
}
}
}
}
"""
result = await graphql(schema=schema, source=source)
assert result == (
{
"hero": {
"name": "R2-D2",
"friends": [
{
"name": "Luke Skywalker",
"appearsIn": ["NEW_HOPE", "EMPIRE", "JEDI"],
"friends": [
{"name": "Han Solo"},
{"name": "Leia Organa"},
{"name": "C-3PO"},
{"name": "R2-D2"},
],
},
{
"name": "Han Solo",
"appearsIn": ["NEW_HOPE", "EMPIRE", "JEDI"],
"friends": [
{"name": "Luke Skywalker"},
{"name": "Leia Organa"},
{"name": "R2-D2"},
],
},
{
"name": "Leia Organa",
"appearsIn": ["NEW_HOPE", "EMPIRE", "JEDI"],
"friends": [
{"name": "Luke Skywalker"},
{"name": "Han Solo"},
{"name": "C-3PO"},
{"name": "R2-D2"},
],
},
],
}
},
None,
)
def describe_using_ids_and_query_parameters_to_refetch_objects():
@mark.asyncio
async def allows_us_to_query_for_r2_d2_directly_using_his_id():
source = """
query {
droid(id: "2001") {
name
}
}
"""
result = await graphql(schema=schema, source=source)
assert result == ({"droid": {"name": "R2-D2"}}, None)
@mark.asyncio
async def allows_us_to_query_characters_directly_using_their_id():
source = """
query FetchLukeAndC3POQuery {
human(id: "1000") {
name
}
droid(id: "2000") {
name
}
}
"""
result = await graphql(schema=schema, source=source)
assert result == (
{"human": {"name": "Luke Skywalker"}, "droid": {"name": "C-3PO"}},
None,
)
@mark.asyncio
async def allows_creating_a_generic_query_to_fetch_luke_using_his_id():
source = """
query FetchSomeIDQuery($someId: String!) {
human(id: $someId) {
name
}
}
"""
variable_values = {"someId": "1000"}
result = await graphql(
schema=schema, source=source, variable_values=variable_values
)
assert result == ({"human": {"name": "Luke Skywalker"}}, None)
@mark.asyncio
async def allows_creating_a_generic_query_to_fetch_han_using_his_id():
source = """
query FetchSomeIDQuery($someId: String!) {
human(id: $someId) {
name
}
}
"""
variable_values = {"someId": "1002"}
result = await graphql(
schema=schema, source=source, variable_values=variable_values
)
assert result == ({"human": {"name": "Han Solo"}}, None)
@mark.asyncio
async def generic_query_that_gets_null_back_when_passed_invalid_id():
source = """
query humanQuery($id: String!) {
human(id: $id) {
name
}
}
"""
variable_values = {"id": "not a valid id"}
result = await graphql(
schema=schema, source=source, variable_values=variable_values
)
assert result == ({"human": None}, None)
def describe_using_aliases_to_change_the_key_in_the_response():
@mark.asyncio
async def allows_us_to_query_for_luke_changing_his_key_with_an_alias():
source = """
query FetchLukeAliased {
luke: human(id: "1000") {
name
}
}
"""
result = await graphql(schema=schema, source=source)
assert result == ({"luke": {"name": "Luke Skywalker"}}, None)
@mark.asyncio
async def query_for_luke_and_leia_using_two_root_fields_and_an_alias():
source = """
query FetchLukeAndLeiaAliased {
luke: human(id: "1000") {
name
}
leia: human(id: "1003") {
name
}
}
"""
result = await graphql(schema=schema, source=source)
assert result == (
{"luke": {"name": "Luke Skywalker"}, "leia": {"name": "Leia Organa"}},
None,
)
def describe_uses_fragments_to_express_more_complex_queries():
@mark.asyncio
async def allows_us_to_query_using_duplicated_content():
source = """
query DuplicateFields {
luke: human(id: "1000") {
name
homePlanet
}
leia: human(id: "1003") {
name
homePlanet
}
}
"""
result = await graphql(schema=schema, source=source)
assert result == (
{
"luke": {"name": "Luke Skywalker", "homePlanet": "Tatooine"},
"leia": {"name": "Leia Organa", "homePlanet": "Alderaan"},
},
None,
)
@mark.asyncio
async def allows_us_to_use_a_fragment_to_avoid_duplicating_content():
source = """
query UseFragment {
luke: human(id: "1000") {
...HumanFragment
}
leia: human(id: "1003") {
...HumanFragment
}
}
fragment HumanFragment on Human {
name
homePlanet
}
"""
result = await graphql(schema=schema, source=source)
assert result == (
{
"luke": {"name": "Luke Skywalker", "homePlanet": "Tatooine"},
"leia": {"name": "Leia Organa", "homePlanet": "Alderaan"},
},
None,
)
def describe_using_typename_to_find_the_type_of_an_object():
@mark.asyncio
async def allows_us_to_verify_that_r2_d2_is_a_droid():
source = """
query CheckTypeOfR2 {
hero {
__typename
name
}
}
"""
result = await graphql(schema=schema, source=source)
assert result == ({"hero": {"__typename": "Droid", "name": "R2-D2"}}, None)
@mark.asyncio
async def allows_us_to_verify_that_luke_is_a_human():
source = """
query CheckTypeOfLuke {
hero(episode: EMPIRE) {
__typename
name
}
}
"""
result = await graphql(schema=schema, source=source)
assert result == (
{"hero": {"__typename": "Human", "name": "Luke Skywalker"}},
None,
)
def describe_reporting_errors_raised_in_resolvers():
@mark.asyncio
async def correctly_reports_error_on_accessing_secret_backstory():
source = """
query HeroNameQuery {
hero {
name
secretBackstory
}
}
"""
result = await graphql(schema=schema, source=source)
assert result == (
{"hero": {"name": "R2-D2", "secretBackstory": None}},
[
{
"message": "secretBackstory is secret.",
"locations": [(5, 21)],
"path": ["hero", "secretBackstory"],
}
],
)
@mark.asyncio
async def correctly_reports_error_on_accessing_backstory_in_a_list():
source = """
query HeroNameQuery {
hero {
name
friends {
name
secretBackstory
}
}
}
"""
result = await graphql(schema=schema, source=source)
assert result == (
{
"hero": {
"name": "R2-D2",
"friends": [
{"name": "Luke Skywalker", "secretBackstory": None},
{"name": "Han Solo", "secretBackstory": None},
{"name": "Leia Organa", "secretBackstory": None},
],
}
},
[
{
"message": "secretBackstory is secret.",
"locations": [(7, 23)],
"path": ["hero", "friends", 0, "secretBackstory"],
},
{
"message": "secretBackstory is secret.",
"locations": [(7, 23)],
"path": ["hero", "friends", 1, "secretBackstory"],
},
{
"message": "secretBackstory is secret.",
"locations": [(7, 23)],
"path": ["hero", "friends", 2, "secretBackstory"],
},
],
)
@mark.asyncio
async def correctly_reports_error_on_accessing_through_an_alias():
source = """
query HeroNameQuery {
mainHero: hero {
name
story: secretBackstory
}
}
"""
result = await graphql(schema=schema, source=source)
assert result == (
{"mainHero": {"name": "R2-D2", "story": None}},
[
{
"message": "secretBackstory is secret.",
"locations": [(5, 21)],
"path": ["mainHero", "story"],
}
],
)
|
