1 files changed, 17 insertions, 0 deletions
diff --git a/testsuite/synth/attr02/tb_leftof01.vhdl b/testsuite/synth/attr02/tb_leftof01.vhdl
new file mode 100644
index 000000000..b638b347b
--- /dev/null
+++ b/testsuite/synth/attr02/tb_leftof01.vhdl
@@ -0,0 +1,17 @@
+entity tb_leftof01 is
+end tb_leftof01;
+
+architecture behav of tb_leftof01 is
+  signal i, o : integer := 9;
+begin
+  dut: entity work.leftof01
+    port map (i, o);
+
+  process
+  begin
+    i <= 5;
+    wait for 1 ns;
+    assert o = 4 severity failure;
+    wait;
+  end process;
+end behav;