71 lines
3.4 KiB
Python
71 lines
3.4 KiB
Python
from unittest import TestCase
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from cqlengine.columns import Set, List
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from cqlengine.operators import *
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from cqlengine.statements import (UpdateStatement, WhereClause,
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AssignmentClause, SetUpdateClause,
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ListUpdateClause)
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import six
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class UpdateStatementTests(TestCase):
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def test_table_rendering(self):
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""" tests that fields are properly added to the select statement """
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us = UpdateStatement('table')
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self.assertTrue(six.text_type(us).startswith('UPDATE table SET'), six.text_type(us))
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self.assertTrue(str(us).startswith('UPDATE table SET'), str(us))
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def test_rendering(self):
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us = UpdateStatement('table')
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us.add_assignment_clause(AssignmentClause('a', 'b'))
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us.add_assignment_clause(AssignmentClause('c', 'd'))
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us.add_where_clause(WhereClause('a', EqualsOperator(), 'x'))
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self.assertEqual(six.text_type(us), 'UPDATE table SET "a" = %(0)s, "c" = %(1)s WHERE "a" = %(2)s', six.text_type(us))
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def test_context(self):
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us = UpdateStatement('table')
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us.add_assignment_clause(AssignmentClause('a', 'b'))
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us.add_assignment_clause(AssignmentClause('c', 'd'))
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us.add_where_clause(WhereClause('a', EqualsOperator(), 'x'))
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self.assertEqual(us.get_context(), {'0': 'b', '1': 'd', '2': 'x'})
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def test_context_update(self):
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us = UpdateStatement('table')
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us.add_assignment_clause(AssignmentClause('a', 'b'))
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us.add_assignment_clause(AssignmentClause('c', 'd'))
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us.add_where_clause(WhereClause('a', EqualsOperator(), 'x'))
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us.update_context_id(3)
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self.assertEqual(six.text_type(us), 'UPDATE table SET "a" = %(4)s, "c" = %(5)s WHERE "a" = %(3)s')
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self.assertEqual(us.get_context(), {'4': 'b', '5': 'd', '3': 'x'})
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def test_additional_rendering(self):
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us = UpdateStatement('table', ttl=60)
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us.add_assignment_clause(AssignmentClause('a', 'b'))
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us.add_where_clause(WhereClause('a', EqualsOperator(), 'x'))
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self.assertIn('USING TTL 60', six.text_type(us))
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def test_update_set_add(self):
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us = UpdateStatement('table')
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us.add_assignment_clause(SetUpdateClause('a', Set.Quoter({1}), operation='add'))
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self.assertEqual(six.text_type(us), 'UPDATE table SET "a" = "a" + %(0)s')
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def test_update_empty_set_add_does_not_assign(self):
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us = UpdateStatement('table')
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us.add_assignment_clause(SetUpdateClause('a', Set.Quoter(set()), operation='add'))
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self.assertEqual(six.text_type(us), 'UPDATE table SET "a" = "a" + %(0)s')
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def test_update_empty_set_removal_does_not_assign(self):
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us = UpdateStatement('table')
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us.add_assignment_clause(SetUpdateClause('a', Set.Quoter(set()), operation='remove'))
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self.assertEqual(six.text_type(us), 'UPDATE table SET "a" = "a" - %(0)s')
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def test_update_list_prepend_with_empty_list(self):
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us = UpdateStatement('table')
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us.add_assignment_clause(ListUpdateClause('a', List.Quoter([]), operation='prepend'))
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self.assertEqual(six.text_type(us), 'UPDATE table SET "a" = %(0)s + "a"')
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def test_update_list_append_with_empty_list(self):
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us = UpdateStatement('table')
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us.add_assignment_clause(ListUpdateClause('a', List.Quoter([]), operation='append'))
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self.assertEqual(six.text_type(us), 'UPDATE table SET "a" = "a" + %(0)s')
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