1 files changed, 49 insertions, 0 deletions
diff --git a/testsuite/synth/dff02/tb_dff09.vhdl b/testsuite/synth/dff02/tb_dff09.vhdl
new file mode 100644
index 000000000..49b017690
--- /dev/null
+++ b/testsuite/synth/dff02/tb_dff09.vhdl
@@ -0,0 +1,49 @@
+entity tb_dff09 is
+end tb_dff09;
+
+library ieee;
+use ieee.std_logic_1164.all;
+
+architecture behav of tb_dff09 is
+  signal clk : std_logic;
+  signal rst : std_logic;
+  signal din : std_logic_vector (3 downto 0);
+  signal dout : std_logic_vector (3 downto 0);
+begin
+  dut: entity work.dff09
+    port map (
+      q => dout,
+      d => din,
+      clk => clk,
+      rst => rst);
+
+  process
+    procedure pulse is
+    begin
+      clk <= '0';
+      wait for 1 ns;
+      clk <= '1';
+      wait for 1 ns;
+    end pulse;
+  begin
+    rst <= '1';
+    pulse;
+    assert dout = x"0" severity failure;
+
+    rst <= '0';
+    din <= x"3";
+    pulse;
+    assert dout = x"3" severity failure;
+
+    din <= x"a";
+    pulse;
+    assert dout = x"a" severity failure;
+
+    rst <= '1';
+    din <= x"5";
+    pulse;
+    assert dout = x"0" severity failure;
+
+    wait;
+  end process;
+end behav;