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expr_test: test preparing expr::null

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Signed-off-by: Jan Ciolek <jan.ciolek@scylladb.com>
This commit is contained in:
Jan Ciolek
2022-11-09 10:24:12 +01:00
parent 45b3fca71c
commit 42e01cc67f
1 changed files with 22 additions and 1 deletions
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23
test/boost/expr_test.cc
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@@ -1523,4 +1523,25 @@ BOOST_AUTO_TEST_CASE(prepare_cast_text_int) {
BOOST_REQUIRE_THROW(prepare_expression(cast_expr, db, "test_ks", table_schema.get(), receiver),
exceptions::invalid_request_exception);
}
}
BOOST_AUTO_TEST_CASE(prepare_null) {
schema_ptr table_schema = make_simple_test_schema();
auto [db, db_data] = make_data_dictionary_database(table_schema);
expression null_expr = null{};
expression prepared = prepare_expression(null_expr, db, "test_ks", table_schema.get(), make_receiver(int32_type));
expression expected = constant::make_null(int32_type);
BOOST_REQUIRE_EQUAL(prepared, expected);
}
// null can't be prepared without a receiver because we are unable to infer the type.
BOOST_AUTO_TEST_CASE(prepare_null_no_type_fails) {
schema_ptr table_schema = make_simple_test_schema();
auto [db, db_data] = make_data_dictionary_database(table_schema);
expression null_expr = null{};
BOOST_REQUIRE_THROW(prepare_expression(null_expr, db, "test_ks", table_schema.get(), nullptr),
exceptions::invalid_request_exception);
}