From 2dd7420fc7e14f3167b81f59949d78903c83a653 Mon Sep 17 00:00:00 2001
From: Habibullah Oladepo <habibullaho@yahoo.com>
Date: Sun, 3 Apr 2022 23:42:39 +0100
Subject: [PATCH] Add tests for toLastDayOfMonth

---
 .../02251_last_day_of_month.reference         |  7 +++
 .../0_stateless/02251_last_day_of_month.sql   | 46 +++++++++++++++++++
 2 files changed, 53 insertions(+)
 create mode 100644 tests/queries/0_stateless/02251_last_day_of_month.reference
 create mode 100644 tests/queries/0_stateless/02251_last_day_of_month.sql

diff --git a/tests/queries/0_stateless/02251_last_day_of_month.reference b/tests/queries/0_stateless/02251_last_day_of_month.reference
new file mode 100644
index 00000000000..0b83aff1e42
--- /dev/null
+++ b/tests/queries/0_stateless/02251_last_day_of_month.reference
@@ -0,0 +1,7 @@
+2021-09-30	2021-09-30	2021-09-30
+2021-03-31	2021-03-31	2021-03-31
+2021-02-28	2021-02-28	2021-02-28
+2020-02-29	2020-02-29	2020-02-29
+2021-12-31	2021-12-31	2021-12-31
+2020-12-31	2020-12-31	2020-12-31
+2020-12-31	2020-12-31
diff --git a/tests/queries/0_stateless/02251_last_day_of_month.sql b/tests/queries/0_stateless/02251_last_day_of_month.sql
new file mode 100644
index 00000000000..1261f051e17
--- /dev/null
+++ b/tests/queries/0_stateless/02251_last_day_of_month.sql
@@ -0,0 +1,46 @@
+-- month with 30 days
+WITH
+    toDate('2021-09-12') AS date_value,
+    toDateTime('2021-09-12 11:22:33') AS date_time_value,
+    toDateTime64('2021-09-12 11:22:33', 3) AS date_time_64_value
+SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
+
+-- month with 31 days
+WITH
+    toDate('2021-03-12') AS date_value,
+    toDateTime('2021-03-12 11:22:33') AS date_time_value,
+    toDateTime64('2021-03-12 11:22:33', 3) AS date_time_64_value
+SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
+
+-- non leap year February
+WITH
+    toDate('2021-02-12') AS date_value,
+    toDateTime('2021-02-12 11:22:33') AS date_time_value,
+    toDateTime64('2021-02-12 11:22:33', 3) AS date_time_64_value
+SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
+
+-- leap year February
+WITH
+    toDate('2020-02-12') AS date_value,
+    toDateTime('2020-02-12 11:22:33') AS date_time_value,
+    toDateTime64('2020-02-12 11:22:33', 3) AS date_time_64_value
+SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
+
+-- December 31 for non-leap year
+WITH
+    toDate('2021-12-12') AS date_value,
+    toDateTime('2021-12-12 11:22:33') AS date_time_value,
+    toDateTime64('2021-12-12 11:22:33', 3) AS date_time_64_value
+SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
+
+-- December 31 for leap year
+WITH
+    toDate('2020-12-12') AS date_value,
+    toDateTime('2020-12-12 11:22:33') AS date_time_value,
+    toDateTime64('2020-12-12 11:22:33', 3) AS date_time_64_value
+SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
+
+-- aliases
+WITH
+    toDate('2020-12-12') AS date_value
+SELECT last_day(date_value), LAST_DAY(date_value);