58 lines
2.3 KiB
Python
58 lines
2.3 KiB
Python
import math
|
|
from decimal import Decimal
|
|
|
|
from django.db.models import DecimalField
|
|
from django.db.models.functions import ACos
|
|
from django.test import TestCase
|
|
from django.test.utils import register_lookup
|
|
|
|
from ..models import DecimalModel, FloatModel, IntegerModel
|
|
|
|
|
|
class ACosTests(TestCase):
|
|
def test_null(self):
|
|
IntegerModel.objects.create()
|
|
obj = IntegerModel.objects.annotate(null_acos=ACos("normal")).first()
|
|
self.assertIsNone(obj.null_acos)
|
|
|
|
def test_decimal(self):
|
|
DecimalModel.objects.create(n1=Decimal("-0.9"), n2=Decimal("0.6"))
|
|
obj = DecimalModel.objects.annotate(
|
|
n1_acos=ACos("n1"), n2_acos=ACos("n2")
|
|
).first()
|
|
self.assertIsInstance(obj.n1_acos, Decimal)
|
|
self.assertIsInstance(obj.n2_acos, Decimal)
|
|
self.assertAlmostEqual(obj.n1_acos, Decimal(math.acos(obj.n1)))
|
|
self.assertAlmostEqual(obj.n2_acos, Decimal(math.acos(obj.n2)))
|
|
|
|
def test_float(self):
|
|
FloatModel.objects.create(f1=-0.5, f2=0.33)
|
|
obj = FloatModel.objects.annotate(
|
|
f1_acos=ACos("f1"), f2_acos=ACos("f2")
|
|
).first()
|
|
self.assertIsInstance(obj.f1_acos, float)
|
|
self.assertIsInstance(obj.f2_acos, float)
|
|
self.assertAlmostEqual(obj.f1_acos, math.acos(obj.f1))
|
|
self.assertAlmostEqual(obj.f2_acos, math.acos(obj.f2))
|
|
|
|
def test_integer(self):
|
|
IntegerModel.objects.create(small=0, normal=1, big=-1)
|
|
obj = IntegerModel.objects.annotate(
|
|
small_acos=ACos("small"),
|
|
normal_acos=ACos("normal"),
|
|
big_acos=ACos("big"),
|
|
).first()
|
|
self.assertIsInstance(obj.small_acos, float)
|
|
self.assertIsInstance(obj.normal_acos, float)
|
|
self.assertIsInstance(obj.big_acos, float)
|
|
self.assertAlmostEqual(obj.small_acos, math.acos(obj.small))
|
|
self.assertAlmostEqual(obj.normal_acos, math.acos(obj.normal))
|
|
self.assertAlmostEqual(obj.big_acos, math.acos(obj.big))
|
|
|
|
def test_transform(self):
|
|
with register_lookup(DecimalField, ACos):
|
|
DecimalModel.objects.create(n1=Decimal("0.5"), n2=Decimal("0"))
|
|
DecimalModel.objects.create(n1=Decimal("-0.9"), n2=Decimal("0"))
|
|
obj = DecimalModel.objects.filter(n1__acos__lt=2).get()
|
|
self.assertEqual(obj.n1, Decimal("0.5"))
|