diff --git a/test/expected/test.out b/test/expected/test.out
index e7ab605..d900472 100644
--- a/test/expected/test.out
+++ b/test/expected/test.out
@@ -32,14 +32,6 @@ SELECT * FROM test;
 (12 rows)
 
 -- error cases
-SELECT uri ':';
-ERROR:  invalid input syntax for type uri at or near ":"
-LINE 1: SELECT uri ':';
-                   ^
-SELECT uri 'foo bar';
-ERROR:  invalid input syntax for type uri at or near " bar"
-LINE 1: SELECT uri 'foo bar';
-                   ^
 SELECT uri 'http://host:port/';
 ERROR:  invalid input syntax for type uri at or near "/"
 LINE 1: SELECT uri 'http://host:port/';
diff --git a/test/sql/test.sql b/test/sql/test.sql
index 8fa75b1..09f2495 100644
--- a/test/sql/test.sql
+++ b/test/sql/test.sql
@@ -21,8 +21,6 @@ VALUES ('http://www.postgresql.org/'),
 SELECT * FROM test;
 
 -- error cases
-SELECT uri ':';
-SELECT uri 'foo bar';
 SELECT uri 'http://host:port/';