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redis-om-python/tests/test_hash_model.py
Andrew Brookins bc441143de Add all_pks() method to HashModel
2021-11-08 16:28:58 -08:00

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import abc
import datetime
import decimal
from collections import namedtuple
from typing import Optional
from unittest import mock
import pytest
from pydantic import ValidationError
from redis_om.checks import has_redisearch
from redis_om.model import Field, HashModel
from redis_om.model.migrations.migrator import Migrator
from redis_om.model.model import NotFoundError, QueryNotSupportedError, RedisModelError
if not has_redisearch():
pytestmark = pytest.mark.skip
today = datetime.date.today()
@pytest.fixture
def m(key_prefix):
class BaseHashModel(HashModel, abc.ABC):
class Meta:
global_key_prefix = key_prefix
class Order(BaseHashModel):
total: decimal.Decimal
currency: str
created_on: datetime.datetime
class Member(BaseHashModel):
first_name: str = Field(index=True)
last_name: str = Field(index=True)
email: str = Field(index=True)
join_date: datetime.date
age: int = Field(index=True)
class Meta:
model_key_prefix = "member"
primary_key_pattern = ""
Migrator().run()
return namedtuple("Models", ["BaseHashModel", "Order", "Member"])(
BaseHashModel, Order, Member
)
@pytest.fixture
def members(m):
member1 = m.Member(
first_name="Andrew",
last_name="Brookins",
email="a@example.com",
age=38,
join_date=today,
)
member2 = m.Member(
first_name="Kim",
last_name="Brookins",
email="k@example.com",
age=34,
join_date=today,
)
member3 = m.Member(
first_name="Andrew",
last_name="Smith",
email="as@example.com",
age=100,
join_date=today,
)
member1.save()
member2.save()
member3.save()
yield member1, member2, member3
def test_validates_required_fields(m):
# Raises ValidationError: last_name is required
with pytest.raises(ValidationError):
m.Member(first_name="Andrew", zipcode="97086", join_date=today)
def test_validates_field(m):
# Raises ValidationError: join_date is not a date
with pytest.raises(ValidationError):
m.Member(first_name="Andrew", last_name="Brookins", join_date="yesterday")
# Passes validation
def test_validation_passes(m):
member = m.Member(
first_name="Andrew",
last_name="Brookins",
email="a@example.com",
join_date=today,
age=38,
)
assert member.first_name == "Andrew"
def test_saves_model_and_creates_pk(m):
member = m.Member(
first_name="Andrew",
last_name="Brookins",
email="a@example.com",
join_date=today,
age=38,
)
# Save a model instance to Redis
member.save()
member2 = m.Member.get(member.pk)
assert member2 == member
def test_raises_error_with_embedded_models(m):
class Address(m.BaseHashModel):
address_line_1: str
address_line_2: Optional[str]
city: str
country: str
postal_code: str
with pytest.raises(RedisModelError):
class InvalidMember(m.BaseHashModel):
address: Address
@pytest.mark.skip("Not implemented yet")
def test_saves_many(m):
members = [
m.Member(
first_name="Andrew",
last_name="Brookins",
email="a@example.com",
join_date=today,
),
m.Member(
first_name="Kim",
last_name="Brookins",
email="k@example.com",
join_date=today,
),
]
m.Member.add(members)
@pytest.mark.skip("Not ready yet")
def test_updates_a_model(members, m):
member1, member2, member3 = members
# Or, with an implicit save:
member1.update(last_name="Smith")
assert m.Member.find(m.Member.pk == member1.pk).first() == member1
# Or, affecting multiple model instances with an implicit save:
m.Member.find(m.Member.last_name == "Brookins").update(last_name="Smith")
results = m.Member.find(m.Member.last_name == "Smith")
assert results == members
def test_paginate_query(members, m):
member1, member2, member3 = members
actual = m.Member.find().sort_by("age").all(batch_size=1)
assert actual == [member2, member1, member3]
def test_access_result_by_index_cached(members, m):
member1, member2, member3 = members
query = m.Member.find().sort_by("age")
# Load the cache, throw away the result.
assert query._model_cache == []
query.execute()
assert query._model_cache == [member2, member1, member3]
# Access an item that should be in the cache.
with mock.patch.object(query.model, "db") as mock_db:
assert query[0] == member2
assert not mock_db.called
def test_access_result_by_index_not_cached(members, m):
member1, member2, member3 = members
query = m.Member.find().sort_by("age")
# Assert that we don't have any models in the cache yet -- we
# haven't made any requests of Redis.
assert query._model_cache == []
assert query[0] == member2
assert query[1] == member1
assert query[2] == member3
def test_exact_match_queries(members, m):
member1, member2, member3 = members
actual = m.Member.find(m.Member.last_name == "Brookins").sort_by("age").all()
assert actual == [member2, member1]
actual = m.Member.find(
(m.Member.last_name == "Brookins") & ~(m.Member.first_name == "Andrew")
).all()
assert actual == [member2]
actual = m.Member.find(~(m.Member.last_name == "Brookins")).all()
assert actual == [member3]
actual = m.Member.find(m.Member.last_name != "Brookins").all()
assert actual == [member3]
actual = (
m.Member.find(
(m.Member.last_name == "Brookins") & (m.Member.first_name == "Andrew")
| (m.Member.first_name == "Kim")
)
.sort_by("age")
.all()
)
assert actual == [member2, member1]
actual = m.Member.find(
m.Member.first_name == "Kim", m.Member.last_name == "Brookins"
).all()
assert actual == [member2]
def test_recursive_query_resolution(members, m):
member1, member2, member3 = members
actual = (
m.Member.find(
(m.Member.last_name == "Brookins")
| (m.Member.age == 100) & (m.Member.last_name == "Smith")
)
.sort_by("age")
.all()
)
assert actual == [member2, member1, member3]
def test_tag_queries_boolean_logic(members, m):
member1, member2, member3 = members
actual = (
m.Member.find(
(m.Member.first_name == "Andrew") & (m.Member.last_name == "Brookins")
| (m.Member.last_name == "Smith")
)
.sort_by("age")
.all()
)
assert actual == [member1, member3]
def test_tag_queries_punctuation(m):
member1 = m.Member(
first_name="Andrew, the Michael",
last_name="St. Brookins-on-Pier",
email="a|b@example.com", # NOTE: This string uses the TAG field separator.
age=38,
join_date=today,
)
member1.save()
member2 = m.Member(
first_name="Bob",
last_name="the Villain",
email="a|villain@example.com", # NOTE: This string uses the TAG field separator.
age=38,
join_date=today,
)
member2.save()
assert (
m.Member.find(m.Member.first_name == "Andrew, the Michael").first() == member1
)
assert (
m.Member.find(m.Member.last_name == "St. Brookins-on-Pier").first() == member1
)
# Notice that when we index and query multiple values that use the internal
# TAG separator for single-value exact-match fields, like an indexed string,
# the queries will succeed. We apply a workaround that queries for the union
# of the two values separated by the tag separator.
assert m.Member.find(m.Member.email == "a|b@example.com").all() == [member1]
assert m.Member.find(m.Member.email == "a|villain@example.com").all() == [member2]
def test_tag_queries_negation(members, m):
member1, member2, member3 = members
"""
┌first_name
NOT EQ┤
└Andrew
"""
query = m.Member.find(~(m.Member.first_name == "Andrew"))
assert query.all() == [member2]
"""
┌first_name
┌NOT EQ┤
| └Andrew
AND┤
| ┌last_name
└EQ┤
└Brookins
"""
query = m.Member.find(
~(m.Member.first_name == "Andrew") & (m.Member.last_name == "Brookins")
)
assert query.all() == [member2]
"""
┌first_name
┌NOT EQ┤
| └Andrew
AND┤
| ┌last_name
| ┌EQ┤
| | └Brookins
└OR┤
| ┌last_name
└EQ┤
└Smith
"""
query = m.Member.find(
~(m.Member.first_name == "Andrew")
& ((m.Member.last_name == "Brookins") | (m.Member.last_name == "Smith"))
)
assert query.all() == [member2]
"""
┌first_name
┌NOT EQ┤
| └Andrew
┌AND┤
| | ┌last_name
| └EQ┤
| └Brookins
OR┤
| ┌last_name
└EQ┤
└Smith
"""
query = m.Member.find(
~(m.Member.first_name == "Andrew") & (m.Member.last_name == "Brookins")
| (m.Member.last_name == "Smith")
)
assert query.sort_by("age").all() == [member2, member3]
actual = m.Member.find(
(m.Member.first_name == "Andrew") & ~(m.Member.last_name == "Brookins")
).all()
assert actual == [member3]
def test_numeric_queries(members, m):
member1, member2, member3 = members
actual = m.Member.find(m.Member.age == 34).all()
assert actual == [member2]
actual = m.Member.find(m.Member.age > 34).sort_by("age").all()
assert actual == [member1, member3]
actual = m.Member.find(m.Member.age < 35).all()
assert actual == [member2]
actual = m.Member.find(m.Member.age <= 34).all()
assert actual == [member2]
actual = m.Member.find(m.Member.age >= 100).all()
assert actual == [member3]
actual = m.Member.find(m.Member.age != 34).sort_by("age").all()
assert actual == [member1, member3]
actual = m.Member.find(~(m.Member.age == 100)).sort_by("age").all()
assert actual == [member2, member1]
actual = m.Member.find(m.Member.age > 30, m.Member.age < 40).sort_by("age").all()
assert actual == [member2, member1]
def test_sorting(members, m):
member1, member2, member3 = members
actual = m.Member.find(m.Member.age > 34).sort_by("age").all()
assert actual == [member1, member3]
actual = m.Member.find(m.Member.age > 34).sort_by("-age").all()
assert actual == [member3, member1]
with pytest.raises(QueryNotSupportedError):
# This field does not exist.
m.Member.find().sort_by("not-a-real-field").all()
with pytest.raises(QueryNotSupportedError):
# This field is not sortable.
m.Member.find().sort_by("join_date").all()
def test_all_keys(members, m):
pks = sorted(list(m.Member.all_pks()))
assert len(pks) == 3
assert pks == sorted([m.pk for m in members])
def test_not_found(m):
with pytest.raises(NotFoundError):
# This ID does not exist.
m.Member.get(1000)
def test_schema(m, key_prefix):
class Address(m.BaseHashModel):
a_string: str = Field(index=True)
a_full_text_string: str = Field(index=True, full_text_search=True)
an_integer: int = Field(index=True, sortable=True)
a_float: float = Field(index=True)
another_integer: int
another_float: float
assert (
Address.redisearch_schema()
== f"ON HASH PREFIX 1 {key_prefix}:tests.test_hash_model.Address: SCHEMA pk TAG SEPARATOR | a_string TAG SEPARATOR | a_full_text_string TAG SEPARATOR | a_full_text_string_fts TEXT an_integer NUMERIC SORTABLE a_float NUMERIC"
)
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