3 files changed, 36 insertions, 2 deletions
diff --git a/testsuite/gna/issue256/testcase2.vhd b/testsuite/gna/issue256/testcase2.vhd
index 2f8b9a4ca..4b9928c8d 100644
--- a/testsuite/gna/issue256/testcase2.vhd
+++ b/testsuite/gna/issue256/testcase2.vhd
@@ -3,3 +3,7 @@ entity testcase2 is
 begin
     check: assert clk'delayed'last_event >= 10 ns;
 end entity testcase2;
+
+architecture empty of testcase2 is
+begin
+end empty;
diff --git a/testsuite/gna/issue256/testcase2_testbench.vhd b/testsuite/gna/issue256/testcase2_testbench.vhd
new file mode 100644
index 000000000..6a27db515
--- /dev/null
+++ b/testsuite/gna/issue256/testcase2_testbench.vhd
@@ -0,0 +1,26 @@
+entity testcase2_testbench is
+end entity testcase2_testbench;
+
+architecture bench of testcase2_testbench is
+    signal clk: bit;
+begin
+    dut: entity work.testcase2(empty) port map(clk => clk);
+
+    stimulus: process is
+    begin
+        -- Valid low and high pulses
+        clk <= '0';
+        wait for 10 ns;
+        clk <= '1';
+        wait for 10 ns;
+        -- Confirm that we're timing events, not transactions
+        clk <= '1';
+        wait for 5 ns;
+        -- Now send a short pulse to make the assertion fire        
+        clk <= '0';
+        wait for 5 ns;
+        -- Assertion should fire here, at 30ns
+        clk <= '1';
+        wait;
+    end process stimulus;
+end architecture bench;
diff --git a/testsuite/gna/issue256/testsuite.sh b/testsuite/gna/issue256/testsuite.sh
index f9ec0e8cc..56673760a 100755
--- a/testsuite/gna/issue256/testsuite.sh
+++ b/testsuite/gna/issue256/testsuite.sh
@@ -3,11 +3,15 @@
 . ../../testenv.sh
 
 analyze testcase.vhd
-analyze testcase2.vhd
-analyze testcase3.vhd
 analyze testcase_testbench.vhd
 elab_simulate testcase_testbench
 
+analyze testcase2.vhd
+analyze testcase2_testbench.vhd
+elab_simulate testcase2_testbench
+
+analyze testcase3.vhd
+
 clean
 
 echo "Test successful"