def works_with_an_undersized_array_slice_right_side():
c = connection_from_array_slice(
letters[2:4],
dict(first=3, after="YXJyYXljb25uZWN0aW9uOjE="),
slice_start=2,
array_length=5,
)
assert c == Connection(
edges=[
Edge(node="C", cursor="YXJyYXljb25uZWN0aW9uOjI="),
Edge(node="D", cursor="YXJyYXljb25uZWN0aW9uOjM="),
],
pageInfo=PageInfo(
startCursor="YXJyYXljb25uZWN0aW9uOjI=",
endCursor="YXJyYXljb25uZWN0aW9uOjM=",
hasPreviousPage=False,
hasNextPage=True,
),
)
def respects_last_and_after_and_before_too_few():
c = connection_from_array(
letters,
dict(
last=2,
after="YXJyYXljb25uZWN0aW9uOjA=",
before="YXJyYXljb25uZWN0aW9uOjQ=",
),
)
assert c == Connection(
edges=[
Edge(node="C", cursor="YXJyYXljb25uZWN0aW9uOjI="),
Edge(node="D", cursor="YXJyYXljb25uZWN0aW9uOjM="),
],
pageInfo=PageInfo(
startCursor="YXJyYXljb25uZWN0aW9uOjI=",
endCursor="YXJyYXljb25uZWN0aW9uOjM=",
hasPreviousPage=True,
hasNextPage=False,
),
)
def uses_slice_end_as_default_for_array_length():
c = connection_from_array_slice(letters[:1],
dict(first=1),
slice_start=0)
assert c == Connection(
edges=[Edge(node="A", cursor="YXJyYXljb25uZWN0aW9uOjA=")],
pageInfo=PageInfo(
startCursor="YXJyYXljb25uZWN0aW9uOjA=",
endCursor="YXJyYXljb25uZWN0aW9uOjA=",
hasPreviousPage=False,
hasNextPage=False,
),
)
def respects_first_and_after_and_before_exactly_right():
c = connection_from_array(
letters,
dict(
first=3,
after="YXJyYXljb25uZWN0aW9uOjA=",
before="YXJyYXljb25uZWN0aW9uOjQ=",
),
)
assert c == Connection(
edges=[
Edge(node="B", cursor="YXJyYXljb25uZWN0aW9uOjE="),
Edge(node="C", cursor="YXJyYXljb25uZWN0aW9uOjI="),
Edge(node="D", cursor="YXJyYXljb25uZWN0aW9uOjM="),
],
pageInfo=PageInfo(
startCursor="YXJyYXljb25uZWN0aW9uOjE=",
endCursor="YXJyYXljb25uZWN0aW9uOjM=",
hasPreviousPage=False,
hasNextPage=False,
),
)
def ignores_len_of_slice_if_array_slice_length_provided():
c = connection_from_array_slice(letters[:2],
dict(first=2),
array_length=2,
array_slice_length=1)
assert c == Connection(
edges=[Edge(node="A", cursor="YXJyYXljb25uZWN0aW9uOjA=")],
pageInfo=PageInfo(
startCursor="YXJyYXljb25uZWN0aW9uOjA=",
endCursor="YXJyYXljb25uZWN0aW9uOjA=",
hasPreviousPage=False,
hasNextPage=True,
),
)
def returns_all_elements_if_cursors_are_on_the_outside():
c = connection_from_array(
letters,
dict(
before="YXJyYXljb25uZWN0aW9uOjYK",
after="YXJyYXljb25uZWN0aW9uOi0xCg==",
),
)
assert c == Connection(
edges=[
Edge(node="A", cursor="YXJyYXljb25uZWN0aW9uOjA="),
Edge(node="B", cursor="YXJyYXljb25uZWN0aW9uOjE="),
Edge(node="C", cursor="YXJyYXljb25uZWN0aW9uOjI="),
Edge(node="D", cursor="YXJyYXljb25uZWN0aW9uOjM="),
Edge(node="E", cursor="YXJyYXljb25uZWN0aW9uOjQ="),
],
pageInfo=PageInfo(
startCursor="YXJyYXljb25uZWN0aW9uOjA=",
endCursor="YXJyYXljb25uZWN0aW9uOjQ=",
hasPreviousPage=False,
hasNextPage=False,
),
)
def uses_default_connection_types():
connection = connection_from_array(letters[:1])
assert isinstance(connection, Connection)
edge = connection.edges[0]
assert isinstance(edge, Edge)
assert len(connection.edges) == 1
assert edge == Edge(node="A", cursor="YXJyYXljb25uZWN0aW9uOjA=")
page_info = connection.pageInfo
assert isinstance(page_info, PageInfo)
assert page_info == PageInfo(
startCursor="YXJyYXljb25uZWN0aW9uOjA=",
endCursor="YXJyYXljb25uZWN0aW9uOjA=",
hasPreviousPage=False,
hasNextPage=False,
)
def provides_deprecated_connection_from_list():
with deprecated_call():
# noinspection PyDeprecation
c = connection_from_list(
letters[:1],
args={},
connection_type=Connection,
edge_type=Edge,
pageinfo_type=PageInfo,
)
assert c == Connection(
edges=[Edge(node="A", cursor="YXJyYXljb25uZWN0aW9uOjA=")],
pageInfo=PageInfo(
startCursor="YXJyYXljb25uZWN0aW9uOjA=",
endCursor="YXJyYXljb25uZWN0aW9uOjA=",
hasPreviousPage=False,
hasNextPage=False,
),
)
def accepts_custom_connection_type():
class CustomConnection:
# noinspection PyPep8Naming
def __init__(self, edges, pageInfo):
self.edges = edges
self.page_info = pageInfo
connection = connection_from_array(
letters[:1], connection_type=CustomConnection)
assert isinstance(connection, CustomConnection)
edge = connection.edges[0]
assert isinstance(edge, Edge)
assert len(connection.edges) == 1
assert edge == Edge(node="A", cursor="YXJyYXljb25uZWN0aW9uOjA=")
page_info = connection.page_info
assert isinstance(page_info, PageInfo)
assert page_info == PageInfo(
startCursor="YXJyYXljb25uZWN0aW9uOjA=",
endCursor="YXJyYXljb25uZWN0aW9uOjA=",
hasPreviousPage=False,
hasNextPage=False,
)
def accepts_custom_page_info_type():
class CustomPageInfo:
# noinspection PyPep8Naming
def __init__(self, startCursor, endCursor, hasPreviousPage,
hasNextPage):
self.startCursor = startCursor
self.endCursor = endCursor
self.hasPreviousPage = hasPreviousPage
self.hasNextPage = hasNextPage
connection = connection_from_array(letters[:1],
page_info_type=CustomPageInfo)
assert isinstance(connection, Connection)
assert isinstance(connection.edges, list)
assert len(connection.edges) == 1
edge = connection.edges[0]
assert isinstance(edge, Edge)
assert edge == Edge(node="A", cursor="YXJyYXljb25uZWN0aW9uOjA=")
page_info = connection.pageInfo
assert isinstance(page_info, CustomPageInfo)
assert page_info.startCursor == "YXJyYXljb25uZWN0aW9uOjA="
assert page_info.endCursor == "YXJyYXljb25uZWN0aW9uOjA="
assert page_info.hasPreviousPage is False
assert page_info.hasNextPage is False
Edge,
PageInfo,
)
# noinspection PyProtectedMember
from graphql_relay import connection_from_list, connection_from_list_slice
array_abcde = ["A", "B", "C", "D", "E"]
cursor_a = "YXJyYXljb25uZWN0aW9uOjA="
cursor_b = "YXJyYXljb25uZWN0aW9uOjE="
cursor_c = "YXJyYXljb25uZWN0aW9uOjI="
cursor_d = "YXJyYXljb25uZWN0aW9uOjM="
cursor_e = "YXJyYXljb25uZWN0aW9uOjQ="
edge_a = Edge(node="A", cursor=cursor_a)
edge_b = Edge(node="B", cursor=cursor_b)
edge_c = Edge(node="C", cursor=cursor_c)
edge_d = Edge(node="D", cursor=cursor_d)
edge_e = Edge(node="E", cursor=cursor_e)
def describe_connection_from_array():
def warns_for_deprecated_import():
from importlib import reload
with deprecated_call():
from graphql_relay.connection import arrayconnection as deprecated
# noinspection PyDeprecation
reload(deprecated)