diff --git a/test/expected/cast.out b/test/expected/cast.out
index c180fe6..621c0da 100644
--- a/test/expected/cast.out
+++ b/test/expected/cast.out
@@ -140,6 +140,28 @@ SELECT '{1e-8,-1e-8}'::real[]::halfvec;
  [0,-0]
 (1 row)
 
+SELECT '{1,2,3}'::int[]::intvec;
+ intvec  
+---------
+ [1,2,3]
+(1 row)
+
+SELECT '{1,2,3}'::int[]::intvec(3);
+ intvec  
+---------
+ [1,2,3]
+(1 row)
+
+SELECT '{1,2,3}'::int[]::intvec(2);
+ERROR:  expected 2 dimensions, not 3
+SELECT '{127,-128}'::int[]::intvec;
+   intvec   
+------------
+ [127,-128]
+(1 row)
+
+SELECT '{128,-129}'::int[]::intvec;
+ERROR:  value "128" is out of range for type intvec
 SELECT '[0,1.5,0,3.5,0]'::vector::sparsevec;
     sparsevec    
 -----------------
diff --git a/test/sql/cast.sql b/test/sql/cast.sql
index fe83931..34f94fe 100644
--- a/test/sql/cast.sql
+++ b/test/sql/cast.sql
@@ -38,6 +38,12 @@ SELECT '{1,2,3}'::real[]::halfvec(2);
 SELECT '{65520,-65520}'::real[]::halfvec;
 SELECT '{1e-8,-1e-8}'::real[]::halfvec;
 
+SELECT '{1,2,3}'::int[]::intvec;
+SELECT '{1,2,3}'::int[]::intvec(3);
+SELECT '{1,2,3}'::int[]::intvec(2);
+SELECT '{127,-128}'::int[]::intvec;
+SELECT '{128,-129}'::int[]::intvec;
+
 SELECT '[0,1.5,0,3.5,0]'::vector::sparsevec;
 SELECT '[0,1.5,0,3.5,0]'::vector::sparsevec(5);
 SELECT '[0,1.5,0,3.5,0]'::vector::sparsevec(4);