testsuite/synth: add more tests for #1273

1 files changed, 56 insertions, 0 deletions

diff --git a/testsuite/synth/issue1273/tb_assert4.vhdl b/testsuite/synth/issue1273/tb_assert4.vhdl
new file mode 100644
index 000000000..1322af021
--- /dev/null
+++ b/testsuite/synth/issue1273/tb_assert4.vhdl
@@ -0,0 +1,56 @@
+entity tb_assert4 is
+  generic (with_err : boolean := False);
+end tb_assert4;
+
+library ieee;
+use ieee.std_logic_1164.all;
+
+architecture behav of tb_assert4 is
+  signal v : std_logic_Vector (7 downto 0);
+  signal en : std_logic := '0';
+  signal clk : std_logic;
+  signal res : std_logic;
+begin
+  dut: entity work.assert4
+    port map (v, en, clk, res);
+
+  process
+    procedure pulse is
+    begin
+      clk <= '0';
+      wait for 1 ns;
+      clk <= '1';
+      wait for 1 ns;
+    end pulse;
+  begin
+    en <= '1';
+    v <= b"0010_0000";
+    pulse;
+    assert res = '0' severity failure;
+
+    v <= b"0010_0001";
+    pulse;
+    assert res = '1' severity failure;
+
+    v <= b"0010_0011";
+    pulse;
+    assert res = '0' severity failure;
+
+    v <= b"0010_0010";
+    pulse;
+    assert res = '1' severity failure;
+
+    en <= '0';
+    v <= x"00";
+    pulse;
+    assert res = '1' severity failure;
+    
+    --  Trigger an error.
+    if with_err then
+      en <= '1';
+      pulse;
+    end if;
+
+    wait;
+  end process;
+end behav;