Tests: Cover deassign

test_regress/t/t_dist_warn_coverage.py

@@ -146,7 +146,6 @@ for s in [
         'Unsupported: Stream operation on a variable of a type',
         'Unsupported: Unclocked assertion',
         'Unsupported: Using --protect-ids with public function',
-        'Unsupported: Verilog 1995 deassign',
         'Unsupported: Verilog 1995 gate primitive:',
         'Unsupported: [] dimensions',
         'Unsupported: \'default :/\' constraint',

test_regress/t/t_lint_unsup_deassign_bad.out

@@ -0,0 +1,5 @@
+%Error-UNSUPPORTED: t/t_lint_unsup_deassign.v:19:8: Unsupported: Verilog 1995 deassign
+   19 |        deassign q;
+      |        ^~~~~~~~
+                    ... For error description see https://verilator.org/warn/UNSUPPORTED?v=latest
+%Error: Exiting due to

test_regress/t/t_lint_unsup_deassign_bad.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python3
+# DESCRIPTION: Verilator: Verilog Test driver/expect definition
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of either the GNU Lesser General Public License Version 3
+# or the Perl Artistic License Version 2.0.
+# SPDX-FileCopyrightText: 2024 Wilson Snyder
+# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+import vltest_bootstrap
+
+test.scenarios('linter')
+test.top_filename = "t/t_lint_unsup_deassign.v"
+
+test.lint(fails=True, expect_filename=test.golden_filename)
+
+test.passes()