testsuite/synth: add case tests for corner case.

1 files changed, 24 insertions, 0 deletions

diff --git a/testsuite/synth/case01/tb_case04.vhdl b/testsuite/synth/case01/tb_case04.vhdl
new file mode 100644
index 000000000..ea3b6b5e6
--- /dev/null
+++ b/testsuite/synth/case01/tb_case04.vhdl
@@ -0,0 +1,24 @@
+entity tb_case04 is
+end tb_case04;
+
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+architecture behav of tb_case04 is
+  signal s : std_logic_vector (4 downto 0);
+  signal o : std_logic;
+begin
+  dut: entity work.case04
+    port map (s, o);
+
+  process
+  begin
+    s <= "00010";
+    wait for 1 ns;
+
+    assert o = '1' severity failure;
+
+    wait;
+  end process;
+end behav;