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test_query.py
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test_query.py
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import pytest
from sqlalchemy import create_engine
from sqlalchemy.orm import scoped_session, sessionmaker
import graphene
from graphene.relay import Node
from ..fields import SQLAlchemyConnectionField
from ..types import SQLAlchemyObjectType
from .models import Article, Base, Editor, Reporter
db = create_engine('sqlite:///test_sqlalchemy.sqlite3')
@pytest.yield_fixture(scope='function')
def session():
connection = db.engine.connect()
transaction = connection.begin()
Base.metadata.create_all(connection)
# options = dict(bind=connection, binds={})
session_factory = sessionmaker(bind=connection)
session = scoped_session(session_factory)
yield session
# Finalize test here
transaction.rollback()
connection.close()
session.remove()
def setup_fixtures(session):
reporter = Reporter(first_name='ABA', last_name='X')
session.add(reporter)
reporter2 = Reporter(first_name='ABO', last_name='Y')
session.add(reporter2)
article = Article(headline='Hi!')
article.reporter = reporter
session.add(article)
editor = Editor(name="John")
session.add(editor)
session.commit()
def test_should_query_well(session):
setup_fixtures(session)
class ReporterType(SQLAlchemyObjectType):
class Meta:
model = Reporter
class Query(graphene.ObjectType):
reporter = graphene.Field(ReporterType)
reporters = graphene.List(ReporterType)
def resolve_reporter(self, *args, **kwargs):
return session.query(Reporter).first()
def resolve_reporters(self, *args, **kwargs):
return session.query(Reporter)
query = '''
query ReporterQuery {
reporter {
firstName,
lastName,
email
}
reporters {
firstName
}
}
'''
expected = {
'reporter': {
'firstName': 'ABA',
'lastName': 'X',
'email': None
},
'reporters': [{
'firstName': 'ABA',
}, {
'firstName': 'ABO',
}]
}
schema = graphene.Schema(query=Query)
result = schema.execute(query)
assert not result.errors
assert result.data == expected
def test_should_node(session):
setup_fixtures(session)
class ReporterNode(SQLAlchemyObjectType):
class Meta:
model = Reporter
interfaces = (Node, )
@classmethod
def get_node(cls, id, info):
return Reporter(id=2, first_name='Cookie Monster')
class ArticleNode(SQLAlchemyObjectType):
class Meta:
model = Article
interfaces = (Node, )
# @classmethod
# def get_node(cls, id, info):
# return Article(id=1, headline='Article node')
class Query(graphene.ObjectType):
node = Node.Field()
reporter = graphene.Field(ReporterNode)
article = graphene.Field(ArticleNode)
all_articles = SQLAlchemyConnectionField(ArticleNode)
def resolve_reporter(self, *args, **kwargs):
return session.query(Reporter).first()
def resolve_article(self, *args, **kwargs):
return session.query(Article).first()
query = '''
query ReporterQuery {
reporter {
id,
firstName,
articles {
edges {
node {
headline
}
}
}
lastName,
email
}
allArticles {
edges {
node {
headline
}
}
}
myArticle: node(id:"QXJ0aWNsZU5vZGU6MQ==") {
id
... on ReporterNode {
firstName
}
... on ArticleNode {
headline
}
}
}
'''
expected = {
'reporter': {
'id': 'UmVwb3J0ZXJOb2RlOjE=',
'firstName': 'ABA',
'lastName': 'X',
'email': None,
'articles': {
'edges': [{
'node': {
'headline': 'Hi!'
}
}]
},
},
'allArticles': {
'edges': [{
'node': {
'headline': 'Hi!'
}
}]
},
'myArticle': {
'id': 'QXJ0aWNsZU5vZGU6MQ==',
'headline': 'Hi!'
}
}
schema = graphene.Schema(query=Query)
result = schema.execute(query, context_value={'session': session})
assert not result.errors
assert result.data == expected
def test_should_custom_identifier(session):
setup_fixtures(session)
class EditorNode(SQLAlchemyObjectType):
class Meta:
model = Editor
interfaces = (Node, )
class Query(graphene.ObjectType):
node = Node.Field()
all_editors = SQLAlchemyConnectionField(EditorNode)
query = '''
query EditorQuery {
allEditors {
edges {
node {
id,
name
}
}
},
node(id: "RWRpdG9yTm9kZTox") {
...on EditorNode {
name
}
}
}
'''
expected = {
'allEditors': {
'edges': [{
'node': {
'id': 'RWRpdG9yTm9kZTox',
'name': 'John'
}
}]
},
'node': {
'name': 'John'
}
}
schema = graphene.Schema(query=Query)
result = schema.execute(query, context_value={'session': session})
assert not result.errors
assert result.data == expected
def test_should_mutate_well(session):
setup_fixtures(session)
class EditorNode(SQLAlchemyObjectType):
class Meta:
model = Editor
interfaces = (Node, )
class ReporterNode(SQLAlchemyObjectType):
class Meta:
model = Reporter
interfaces = (Node, )
@classmethod
def get_node(cls, id, info):
return Reporter(id=2, first_name='Cookie Monster')
class ArticleNode(SQLAlchemyObjectType):
class Meta:
model = Article
interfaces = (Node, )
class CreateArticle(graphene.Mutation):
class Input:
headline = graphene.String()
reporter_id = graphene.ID()
ok = graphene.Boolean()
article = graphene.Field(ArticleNode)
@classmethod
def mutate(cls, instance, args, context, info):
new_article = Article(
headline=args.get('headline'),
reporter_id=args.get('reporter_id'),
)
session.add(new_article)
session.commit()
ok = True
return CreateArticle(article=new_article, ok=ok)
class Query(graphene.ObjectType):
node = Node.Field()
class Mutation(graphene.ObjectType):
create_article = CreateArticle.Field()
query = '''
mutation ArticleCreator {
createArticle(
headline: "My Article"
reporterId: "1"
) {
ok
article {
headline
reporter {
id
firstName
}
}
}
}
'''
expected = {
'createArticle': {
'ok': True,
'article': {
'headline': 'My Article',
'reporter': {
'id': 'UmVwb3J0ZXJOb2RlOjE=',
'firstName': 'ABA'
}
}
},
}
schema = graphene.Schema(query=Query, mutation=Mutation)
result = schema.execute(query, context_value={'session': session})
assert not result.errors
assert result.data == expected