1 files changed, 25 insertions, 0 deletions
diff --git a/tests/dialects/test_clickhouse.py b/tests/dialects/test_clickhouse.py
new file mode 100644
index 0000000..e5b1516
--- /dev/null
+++ b/tests/dialects/test_clickhouse.py
@@ -0,0 +1,25 @@
+from tests.dialects.test_dialect import Validator
+
+
+class TestClickhouse(Validator):
+    dialect = "clickhouse"
+
+    def test_clickhouse(self):
+        self.validate_identity("dictGet(x, 'y')")
+        self.validate_identity("SELECT * FROM x FINAL")
+        self.validate_identity("SELECT * FROM x AS y FINAL")
+
+        self.validate_all(
+            "SELECT fname, lname, age FROM person ORDER BY age DESC NULLS FIRST, fname ASC NULLS LAST, lname",
+            write={
+                "clickhouse": "SELECT fname, lname, age FROM person ORDER BY age DESC NULLS FIRST, fname, lname",
+                "spark": "SELECT fname, lname, age FROM person ORDER BY age DESC NULLS FIRST, fname NULLS LAST, lname NULLS LAST",
+            },
+        )
+
+        self.validate_all(
+            "CAST(1 AS NULLABLE(Int64))",
+            write={
+                "clickhouse": "CAST(1 AS Nullable(BIGINT))",
+            },
+        )