test: cover offsetSkipsGroupsAfterOrderingAggregatedResults

src/test/kotlin/kestrel/AggregateTest.kt

@@ -68,6 +68,13 @@ class AggregateTest {
         assertEquals(listOf(text("ops"), int(120)), result.rows[1])
     }
 
+    @Test
+    fun offsetSkipsGroupsAfterOrderingAggregatedResults() {
+        seed()
+        val result = select("SELECT dept, SUM(amount) AS total FROM sales GROUP BY dept ORDER BY dept ASC LIMIT 1 OFFSET 1")
+        assertEquals(listOf(listOf(text("ops"), int(120))), result.rows)
+    }
+
     @Test
     fun groupByMultipleColumns() {
         seed()
@@ -79,6 +86,22 @@ class AggregateTest {
         assertEquals(listOf(text("ops"), text("eu"), int(2)), result.rows[2])
     }
 
+    @Test
+    fun orderByMultipleColumnsOnGroupedResults() {
+        seed()
+        val result = select(
+            "SELECT dept, region, SUM(amount) AS total FROM sales GROUP BY dept, region ORDER BY dept ASC, region DESC"
+        )
+        assertEquals(
+            listOf(
+                listOf(text("eng"), text("us"), int(200)),
+                listOf(text("eng"), text("eu"), int(100)),
+                listOf(text("ops"), text("eu"), int(120))
+            ),
+            result.rows
+        )
+    }
+
     @Test
     fun havingFiltersGroups() {
         seed()