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88 lines
2.9 KiB
Python
88 lines
2.9 KiB
Python
from parameterized import parameterized
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try:
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import numpy as np
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except ImportError:
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np = None
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from tests.numpy.testcase import NumpyBaseTestCase
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class FloatTestCase(NumpyBaseTestCase):
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n = 10
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def check_result(self, rv, col_type):
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self.assertArraysEqual(rv[0], np.array(range(self.n)))
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self.assertEqual(rv[0].dtype, col_type)
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def get_query(self, ch_type):
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with self.create_table('a {}'.format(ch_type)):
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data = [np.array(range(self.n))]
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self.client.execute(
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'INSERT INTO test (a) VALUES', data, columnar=True
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)
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query = 'SELECT * FROM test'
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inserted = self.emit_cli(query)
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self.assertEqual(
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inserted, '\n'.join(str(x) for x in data[0]) + '\n'
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)
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return self.client.execute(query, columnar=True)
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def test_float32(self):
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rv = self.get_query('Float32')
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self.check_result(rv, np.float32)
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def test_float64(self):
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rv = self.get_query('Float64')
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self.check_result(rv, np.float64)
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def test_fractional_round_trip(self):
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with self.create_table('a Float32'):
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data = [np.array([0.5, 1.5], dtype=np.float32)]
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self.client.execute(
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'INSERT INTO test (a) VALUES', data, columnar=True
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)
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query = 'SELECT * FROM test'
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inserted = self.emit_cli(query)
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self.assertEqual(inserted, '0.5\n1.5\n')
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inserted = self.client.execute(query, columnar=True)
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self.assertArraysEqual(inserted[0], data[0])
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@parameterized.expand(['Float32', 'Float64'])
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def test_nullable(self, float_type):
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with self.create_table('a Nullable({})'.format(float_type)):
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data = [np.array([np.nan, 0.5, None, 1.5], dtype=object)]
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self.client.execute(
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'INSERT INTO test (a) VALUES', data, columnar=True
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)
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query = 'SELECT * FROM test'
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inserted = self.emit_cli(query)
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self.assertEqual(inserted, 'nan\n0.5\n\\N\n1.5\n')
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inserted = self.client.execute(query, columnar=True)
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self.assertArraysEqual(
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inserted[0].astype(str), data[0].astype(str)
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)
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self.assertEqual(inserted[0].dtype, object)
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def test_nan(self):
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with self.create_table('a Float32'):
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data = [np.array([float('nan'), 0.5], dtype=np.float32)]
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self.client.execute(
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'INSERT INTO test (a) VALUES', data, columnar=True
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)
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query = 'SELECT * FROM test'
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inserted = self.emit_cli(query)
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self.assertEqual(inserted, 'nan\n0.5\n')
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inserted = self.client.execute(query, columnar=True)
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self.assertArraysEqual(
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inserted[0].astype(str), data[0].astype(str)
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)
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self.assertEqual(inserted[0].dtype, np.float32)
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