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-rw-r--r--tests/test_generator.py7
1 files changed, 6 insertions, 1 deletions
diff --git a/tests/test_generator.py b/tests/test_generator.py
index fce5c81..ec90646 100644
--- a/tests/test_generator.py
+++ b/tests/test_generator.py
@@ -1,6 +1,6 @@
import unittest
-from sqlglot import parse_one
+from sqlglot import exp, parse_one
from sqlglot.expressions import Func
from sqlglot.parser import Parser
from sqlglot.tokens import Tokenizer
@@ -30,6 +30,11 @@ class TestGenerator(unittest.TestCase):
expression = NewParser().parse(tokens)[0]
self.assertEqual(expression.sql(), "SELECT SPECIAL_UDF(a, b, c, d + 1) FROM x")
+ self.assertEqual(
+ exp.DateTrunc(this=exp.to_column("event_date"), unit=exp.var("MONTH")).sql(),
+ "DATE_TRUNC(MONTH, event_date)",
+ )
+
def test_identify(self):
assert parse_one("x").sql(identify=True) == '"x"'
assert parse_one("x").sql(identify="always") == '"x"'