mirror of
https://github.com/simonw/sqlite-utils.git
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68 lines
1.8 KiB
Python
68 lines
1.8 KiB
Python
import pytest
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import sys
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from unittest.mock import MagicMock
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def test_register_function(fresh_db):
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@fresh_db.register_function
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def reverse_string(s):
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return "".join(reversed(list(s)))
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result = fresh_db.execute('select reverse_string("hello")').fetchone()[0]
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assert result == "olleh"
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def test_register_function_multiple_arguments(fresh_db):
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@fresh_db.register_function
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def a_times_b_plus_c(a, b, c):
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return a * b + c
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result = fresh_db.execute("select a_times_b_plus_c(2, 3, 4)").fetchone()[0]
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assert result == 10
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def test_register_function_deterministic(fresh_db):
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@fresh_db.register_function(deterministic=True)
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def to_lower(s):
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return s.lower()
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result = fresh_db.execute("select to_lower('BOB')").fetchone()[0]
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assert result == "bob"
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@pytest.mark.skipif(
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sys.version_info < (3, 8), reason="deterministic=True was added in Python 3.8"
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)
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def test_register_function_deterministic_registered(fresh_db):
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fresh_db.conn = MagicMock()
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fresh_db.conn.create_function = MagicMock()
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@fresh_db.register_function(deterministic=True)
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def to_lower_2(s):
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return s.lower()
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fresh_db.conn.create_function.assert_called_with(
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"to_lower_2", 1, to_lower_2, deterministic=True
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)
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def test_register_function_replace(fresh_db):
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@fresh_db.register_function()
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def one():
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return "one"
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assert "one" == fresh_db.execute("select one()").fetchone()[0]
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# This will fail to replace the function:
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@fresh_db.register_function()
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def one():
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return "two"
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assert "one" == fresh_db.execute("select one()").fetchone()[0]
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# This will replace it
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@fresh_db.register_function(replace=True)
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def one():
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return "two"
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assert "two" == fresh_db.execute("select one()").fetchone()[0]
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