1 files changed, 54 insertions, 0 deletions
diff --git a/test/expr2.test b/test/expr2.test
new file mode 100644
index 0000000..3dfbadc
--- /dev/null
+++ b/test/expr2.test
@@ -0,0 +1,54 @@
+# 2019 May 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing expressions.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix expr2
+
+do_execsql_test 1.0 {
+  CREATE TABLE t0(c0);
+  INSERT INTO t0(c0) VALUES ('val');
+}
+
+do_execsql_test 1.1 {
+  SELECT * FROM t0 WHERE (
+      ( (0 IS NOT FALSE) OR NOT (0 IS FALSE OR (t0.c0 = 1)) ) IS 0
+  )
+} {val}
+
+do_execsql_test 1.2.1 {
+  SELECT 
+      ( (0 IS NOT FALSE) OR NOT (0 IS FALSE OR (t0.c0 = 1)) ) IS 0
+  FROM t0 
+} {1}
+
+do_execsql_test 1.2.2 {
+  SELECT 
+      ( (0 IS NOT FALSE) OR NOT (0 IS 0 OR (t0.c0 = 1)) ) IS 0
+  FROM t0 
+} {1}
+
+do_execsql_test 1.3 {
+  SELECT ( (0 IS NOT FALSE) OR NOT (0 IS FALSE OR (t0.c0 = 1)) ) FROM t0 
+} {0}
+
+do_execsql_test 1.4.1 {
+  SELECT (0 IS NOT FALSE) FROM t0 
+} {0}
+do_execsql_test 1.4.2 {
+  SELECT NOT (0 IS FALSE OR (t0.c0 = 1)) FROM t0 
+} {0}
+
+
+finish_test