Import vests testsuite

1 files changed, 18 insertions, 0 deletions

diff --git a/testsuite/vests/vhdl-93/clifton-labs/compliant/functional/attributes/signal/simple-last_value-attribute.vhdl b/testsuite/vests/vhdl-93/clifton-labs/compliant/functional/attributes/signal/simple-last_value-attribute.vhdl
new file mode 100644
index 000000000..eafaf406b
--- /dev/null
+++ b/testsuite/vests/vhdl-93/clifton-labs/compliant/functional/attributes/signal/simple-last_value-attribute.vhdl
@@ -0,0 +1,18 @@
+entity test is
+end test;
+
+architecture only of test is
+  signal s : bit;
+begin
+  s  <= '1' after 10 ns, '0' after 20 ns, '1' after 30 ns, '0' after 40 ns;
+  p: process
+   variable v: bit;
+  begin
+    wait for 1 ns;
+   wait for 25 ns;
+    v:=s'last_value;
+    assert v = '1' report "TEST FAILED - s previous value incorrect!" severity failure;
+    report "TEST PASSED v = 1" ;
+    wait;
+  end process;
+end architecture only;