1 files changed, 40 insertions, 0 deletions
diff --git a/testsuite/synth/asgn01/tb_asgn09.vhdl b/testsuite/synth/asgn01/tb_asgn09.vhdl
new file mode 100644
index 000000000..156e50666
--- /dev/null
+++ b/testsuite/synth/asgn01/tb_asgn09.vhdl
@@ -0,0 +1,40 @@
+entity tb_asgn09 is
+end tb_asgn09;
+
+library ieee;
+use ieee.std_logic_1164.all;
+
+architecture behav of tb_asgn09 is
+  signal a, b, c, d : std_logic_vector (1 downto 0);
+  signal sel        : std_logic_vector(1 downto 0);
+  signal o          : std_logic_vector (3 downto 0);
+begin
+  dut: entity work.asgn09
+    port map (a, b, c, d, sel, o);
+
+  process
+  begin
+    a <= "10";
+    b <= "01";
+    c <= "00";
+    d <= "11";
+
+    sel <= "00";
+    wait for 1 ns;
+    assert o = "1110" severity failure;
+
+    sel <= "01";
+    wait for 1 ns;
+    assert o = "1101" severity failure;
+
+    sel <= "10";
+    wait for 1 ns;
+    assert o = "1100" severity failure;
+
+    sel <= "11";
+    wait for 1 ns;
+    assert o = "1111" severity failure;
+
+    wait;
+  end process;
+end behav;