testsuite/synth: add a test for previous commit.

1 files changed, 22 insertions, 0 deletions

diff --git a/testsuite/synth/slice02/tb_slice02.vhdl b/testsuite/synth/slice02/tb_slice02.vhdl
new file mode 100644
index 000000000..38cb294a3
--- /dev/null
+++ b/testsuite/synth/slice02/tb_slice02.vhdl
@@ -0,0 +1,22 @@
+entity tb_slice02 is
+end tb_slice02;
+
+library ieee;
+use ieee.std_logic_1164.all;
+
+architecture behav of tb_slice02 is
+  signal di : std_logic_vector (7 downto 0);
+  signal do : std_logic_vector (3 downto 0);
+begin
+  dut: entity work.slice02
+    port map (di, do);
+
+  process
+  begin
+    di <= b"11_10_01_00";
+    wait for 1 ns;
+    assert do = b"10_11" severity error;
+
+    wait;
+  end process;
+end behav;