Tests: Improve warning coverage

test_regress/t/t_dist_warn_coverage.py

@@ -19,38 +19,32 @@ Suppressed = {}
 
 for s in [
         ' exited with ',  # Is hit; driver.py filters out
+        'Assigned pin is neither input nor output',  # Instead earlier error
+        'Define missing argument \'',  # Instead get Define passed too many arguments
+        'Define or directive not defined: `',  # Instead V3ParseImp will warn
         'EOF in unterminated string',  # Instead get normal unterminated
         'Enum ranges must be integral, per spec',  # Hard to hit
+        'Expecting define formal arguments. Found: ',  # Instead define syntax error
         'Import package not found: ',  # Errors earlier, until future parser released
         'Return with return value isn\'t underneath a function',  # Hard to hit, get other bad return messages
-        'Syntax error: Range \':\', \'+:\' etc are not allowed in the instance ',  # Instead get syntax error
         'Syntax error parsing real: \'',  # Instead can't lex the number
+        'Syntax error: Range \':\', \'+:\' etc are not allowed in the instance ',  # Instead get syntax error
         'Unsupported: Ranges ignored in port-lists',  # Hard to hit
         'dynamic new() not expected in this context (expected under an assign)',  # Instead get syntax error
         # Not yet analyzed
         ' loading non-variable',
-        '--pins-bv maximum is 65: ',
         '--pipe-filter protocol error, unexpected: ',
         '--pipe-filter returned bad status',
         '--pipe-filter: Can\'t pipe: ',
         '--pipe-filter: fork failed: ',
-        '--threads must be >= 0: ',
-        '--threads-max-mtasks must be >= 1: ',
-        '--trace-threads must be >= 1: ',
-        '/*verilator sformat*/ can only be applied to last argument of ',
         'Argument needed for string.',
         'Array initialization has too few elements, need element ',
-        'Assigned pin is neither input nor output',
         'Assignment pattern with no members',
         'Can\'t find varpin scope of ',
         'Can\'t read annotation file: ',
         'Can\'t resolve module reference: \'',
         'Can\'t write file: ',
-        'Circular logic when ordering code (non-cutable edge loop)',
-        'Define missing argument \'',
-        'Define or directive not defined: `',
         'Exceeded limit of ',
-        'Expecting define formal arguments. Found: ',
         'Extern declaration\'s scope is not a defined class',
         'File not found: ',
         'Format to $display-like function must have constant format string',
@@ -80,7 +74,6 @@ for s in [
         'Unsupported pullup/down (weak driver) construct.',
         'Unsupported tristate construct (not in propagation graph): ',
         'Unsupported tristate port expression: ',
-        'Unsupported/unknown built-in dynamic array method ',
         'Unsupported: $bits for queue',
         'Unsupported: $c can\'t generate wider than 64 bits',
         'Unsupported: &&& expression',
@@ -107,20 +100,15 @@ for s in [
         'Unsupported: [] dimensions',
         'Unsupported: \'default :/\' constraint',
         'Unsupported: \'{} .* patterns',
-        'Unsupported: \'{} tagged patterns',
         'Unsupported: always[] (in property expression)',
         'Unsupported: assertion items in clocking blocks',
         'Unsupported: don\'t know how to deal with ',
         'Unsupported: eventually[] (in property expression)',
         'Unsupported: extern forkjoin',
-        'Unsupported: extern interface',
-        'Unsupported: extern module',
         'Unsupported: extern task',
         'Unsupported: modport export',
         'Unsupported: no_inline for tasks',
         'Unsupported: property port \'local\'',
-        'Unsupported: randsequence production list',
-        'Unsupported: randsequence repeat',
         'Unsupported: repeat event control',
         'Unsupported: s_always (in property expression)',
         'Unsupported: static cast to ',

test_regress/t/t_dpi_display_bad.out

@@ -0,0 +1,5 @@
+%Error: t/t_dpi_display_bad.v:17:69: /*verilator sformat*/ can only be applied to last argument of a function
+   17 |        (input string formatted /*verilator sformat*/ , input string other_bad );
+      |                                                                     ^~~~~~~~~
+        ... See the manual at https://verilator.org/verilator_doc.html?v=latest for more assistance.
+%Error: Exiting due to

test_regress/t/t_dpi_display_bad.py

@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+# DESCRIPTION: Verilator: Verilog Test driver/expect definition
+#
+# Copyright 2024 by Wilson Snyder. 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-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+import vltest_bootstrap
+
+test.scenarios('vlt')
+
+test.lint(fails=True, expect_filename=test.golden_filename)
+
+test.passes()

test_regress/t/t_dpi_display_bad.v

@@ -0,0 +1,24 @@
+// DESCRIPTION: Verilator: Verilog Test module
+//
+// Copyright 2010 by Wilson Snyder. 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-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+module t ();
+
+`ifndef VERILATOR
+   `error "Only Verilator supports PLI-ish DPI calls and sformat conversion."
+`endif
+
+   import "DPI-C" context dpii_display_call
+     = function void \$dpii_display
+       (input string formatted /*verilator sformat*/, input string other_bad );
+
+   initial begin
+      $dpii_display("hello", "huh");
+      $stop;
+   end
+
+endmodule

test_regress/t/t_dynarray_method_bad.out

@@ -24,4 +24,13 @@
                                                    : ... note: In instance 't'
    29 |       b = s.product with (item inside { "hello", "sad", "world" });
       |         ^
+%Error-UNSUPPORTED: t/t_dynarray_method_bad.v:32:13: Unsupported/unknown built-in dynamic array method 'unknown_bad'
+                                                   : ... note: In instance 't'
+   32 |       b = s.unknown_bad;
+      |             ^~~~~~~~~~~
+                    ... For error description see https://verilator.org/warn/UNSUPPORTED?v=latest
+%Warning-WIDTHTRUNC: t/t_dynarray_method_bad.v:32:9: Operator ASSIGN expects 1 bits on the Assign RHS, but Assign RHS's METHODCALL 'unknown_bad' generates 64 bits.
+                                                   : ... note: In instance 't'
+   32 |       b = s.unknown_bad;
+      |         ^
 %Error: Exiting due to

test_regress/t/t_dynarray_method_bad.v

@@ -29,6 +29,8 @@ module t (/*AUTOARG*/);
       b = s.product with (item inside { "hello", "sad", "world" });
       `checkh(b, 1'b1);
 
+      b = s.unknown_bad;
+
       $write("*-* All Finished *-*\n");
       $finish;
    end

test_regress/t/t_flag_threads_bad.out

@@ -0,0 +1,2 @@
+%Error: --threads must be >= 0: -1
+        ... See the manual at https://verilator.org/verilator_doc.html?v=latest for more assistance.

test_regress/t/t_flag_threads_bad.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+# DESCRIPTION: Verilator: Verilog Test driver/expect definition
+#
+# Copyright 2024 by Wilson Snyder. 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-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+import vltest_bootstrap
+
+test.scenarios('vlt')
+test.top_filename = 't/t_EXAMPLE.v'
+
+test.run(cmd=["perl", os.environ["VERILATOR_ROOT"] + "/bin/verilator", "--threads -1"],
+         logfile=test.run_log_filename,
+         fails=True,
+         expect_filename=test.golden_filename,
+         verilator_run=True)
+
+test.passes()

test_regress/t/t_flag_threads_bad2.out

@@ -0,0 +1,2 @@
+%Error: --threads-max-mtasks must be >= 1: 0
+        ... See the manual at https://verilator.org/verilator_doc.html?v=latest for more assistance.

test_regress/t/t_flag_threads_bad2.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+# DESCRIPTION: Verilator: Verilog Test driver/expect definition
+#
+# Copyright 2024 by Wilson Snyder. 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-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+import vltest_bootstrap
+
+test.scenarios('vlt')
+test.top_filename = 't/t_EXAMPLE.v'
+
+test.run(cmd=["perl", os.environ["VERILATOR_ROOT"] + "/bin/verilator", "--threads-max-mtasks 0"],
+         logfile=test.run_log_filename,
+         fails=True,
+         expect_filename=test.golden_filename,
+         verilator_run=True)
+
+test.passes()

test_regress/t/t_flag_trace_threads_bad.out

@@ -0,0 +1,2 @@
+%Error: --trace-threads must be >= 1: -1
+        ... See the manual at https://verilator.org/verilator_doc.html?v=latest for more assistance.

test_regress/t/t_flag_trace_threads_bad.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+# DESCRIPTION: Verilator: Verilog Test driver/expect definition
+#
+# Copyright 2024 by Wilson Snyder. 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-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+import vltest_bootstrap
+
+test.scenarios('vlt')
+test.top_filename = 't/t_EXAMPLE.v'
+
+test.lint(verilator_flags2=["--trace-threads -1"],
+          fails=True,
+          expect_filename=test.golden_filename)
+
+test.passes()

test_regress/t/t_program_extern.out

@@ -1,5 +1,11 @@
 %Error-UNSUPPORTED: t/t_program_extern.v:7:1: Unsupported: extern program
-    7 | extern program pgm;
+    7 | extern program ex_pgm;
       | ^~~~~~
                     ... For error description see https://verilator.org/warn/UNSUPPORTED?v=latest
+%Error-UNSUPPORTED: t/t_program_extern.v:8:1: Unsupported: extern interface
+    8 | extern interface ex_ifc;
+      | ^~~~~~
+%Error-UNSUPPORTED: t/t_program_extern.v:9:1: Unsupported: extern module
+    9 | extern module ex_mod;
+      | ^~~~~~
 %Error: Exiting due to

test_regress/t/t_program_extern.v

@@ -4,18 +4,18 @@
 // any use, without warranty, 2022 by Wilson Snyder.
 // SPDX-License-Identifier: CC0-1.0
 
-extern program pgm;
+extern program ex_pgm;
-
+extern interface ex_ifc;
-program pgm;
+extern module ex_mod;
-   task ptask;
-   endtask
-endprogram
 
 module t(/*AUTOARG*/);
 
-   pgm sub ();
+   ex_pgm u_pgm();
+   ex_ifc u_ifc();
+   ex_mod u_mod();
 
    initial begin
+      ex_task();
       $write("*-* All Finished *-*\n");
       $finish;
    end

test_regress/t/t_randsequence.out

@@ -149,4 +149,250 @@
 %Error-UNSUPPORTED: t/t_randsequence.v:105:38: Unsupported: randsequence production id
   105 |             one_if: if (i % 10 == 0) count_1 else most;
       |                                      ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:105:51: Unsupported: randsequence production id
+  105 |             one_if: if (i % 10 == 0) count_1 else most;
+      |                                                   ^~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:105:21: Unsupported: randsequence if
+  105 |             one_if: if (i % 10 == 0) count_1 else most;
+      |                     ^~
+%Error-UNSUPPORTED: t/t_randsequence.v:105:19: Unsupported: randsequence production
+  105 |             one_if: if (i % 10 == 0) count_1 else most;
+      |                   ^
+%Error-UNSUPPORTED: t/t_randsequence.v:106:20: Unsupported: randsequence production
+  106 |             count_1: { ++counts[1]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:107:20: Unsupported: randsequence production
+  107 |             count_2: { ++counts[2]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:108:20: Unsupported: randsequence production
+  108 |             count_3: { ++counts[3]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:109:20: Unsupported: randsequence production
+  109 |             count_4: { ++counts[4]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:110:16: Unsupported: randsequence production
+  110 |             bad: { $stop; };
+      |                ^
+%Error-UNSUPPORTED: t/t_randsequence.v:112:24: Unsupported: randsequence production id
+  112 |                     0: bad;
+      |                        ^~~
+%Error-UNSUPPORTED: t/t_randsequence.v:112:22: Unsupported: randsequence case item
+  112 |                     0: bad;
+      |                      ^
+%Error-UNSUPPORTED: t/t_randsequence.v:113:27: Unsupported: randsequence production id
+  113 |                     1, 2: count_2;
+      |                           ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:113:25: Unsupported: randsequence case item
+  113 |                     1, 2: count_2;
+      |                         ^
+%Error-UNSUPPORTED: t/t_randsequence.v:114:30: Unsupported: randsequence production id
+  114 |                     3, 4, 5: count_3;
+      |                              ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:114:28: Unsupported: randsequence case item
+  114 |                     3, 4, 5: count_3;
+      |                            ^
+%Error-UNSUPPORTED: t/t_randsequence.v:115:29: Unsupported: randsequence production id
+  115 |                     default count_4;   
+      |                             ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:115:21: Unsupported: randsequence case item
+  115 |                     default count_4;   
+      |                     ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:111:19: Unsupported: randsequence case
+  111 |             most: case (i % 10)
+      |                   ^~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:111:17: Unsupported: randsequence production
+  111 |             most: case (i % 10)
+      |                 ^
+%Error-UNSUPPORTED: t/t_randsequence.v:103:10: Unsupported: randsequence
+  103 |          randsequence(main)
+      |          ^~~~~~~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:127:27: Unsupported: randsequence production id
+  127 |          main: repeat(10) count_1;
+      |                           ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:127:16: Unsupported: randsequence repeat
+  127 |          main: repeat(10) count_1;
+      |                ^~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:127:14: Unsupported: randsequence production
+  127 |          main: repeat(10) count_1;
+      |              ^
+%Error-UNSUPPORTED: t/t_randsequence.v:128:17: Unsupported: randsequence production
+  128 |          count_1: { ++counts[1]; };
+      |                 ^
+%Error-UNSUPPORTED: t/t_randsequence.v:126:7: Unsupported: randsequence
+  126 |       randsequence(main)
+      |       ^~~~~~~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:136:29: Unsupported: randsequence production id
+  136 |             main: rand join count_1 count_2;
+      |                             ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:136:37: Unsupported: randsequence production id
+  136 |             main: rand join count_1 count_2;
+      |                                     ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:136:19: Unsupported: randsequence production list
+  136 |             main: rand join count_1 count_2;
+      |                   ^~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:136:17: Unsupported: randsequence production
+  136 |             main: rand join count_1 count_2;
+      |                 ^
+%Error-UNSUPPORTED: t/t_randsequence.v:137:20: Unsupported: randsequence production
+  137 |             count_1: { ++counts[1]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:138:20: Unsupported: randsequence production
+  138 |             count_2: { ++counts[2]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:135:10: Unsupported: randsequence
+  135 |          randsequence(main)
+      |          ^~~~~~~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:148:35: Unsupported: randsequence production id
+  148 |             main: rand join (1.0) count_1 count_2;
+      |                                   ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:148:43: Unsupported: randsequence production id
+  148 |             main: rand join (1.0) count_1 count_2;
+      |                                           ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:148:19: Unsupported: randsequence production list
+  148 |             main: rand join (1.0) count_1 count_2;
+      |                   ^~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:148:17: Unsupported: randsequence production
+  148 |             main: rand join (1.0) count_1 count_2;
+      |                 ^
+%Error-UNSUPPORTED: t/t_randsequence.v:149:20: Unsupported: randsequence production
+  149 |             count_1: { ++counts[1]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:150:20: Unsupported: randsequence production
+  150 |             count_2: { ++counts[2]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:147:10: Unsupported: randsequence
+  147 |          randsequence(main)
+      |          ^~~~~~~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:153:35: Unsupported: randsequence production id
+  153 |             main: rand join (0.0) count_3 count_4;
+      |                                   ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:153:43: Unsupported: randsequence production id
+  153 |             main: rand join (0.0) count_3 count_4;
+      |                                           ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:153:19: Unsupported: randsequence production list
+  153 |             main: rand join (0.0) count_3 count_4;
+      |                   ^~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:153:17: Unsupported: randsequence production
+  153 |             main: rand join (0.0) count_3 count_4;
+      |                 ^
+%Error-UNSUPPORTED: t/t_randsequence.v:154:20: Unsupported: randsequence production
+  154 |             count_3: { ++counts[3]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:155:20: Unsupported: randsequence production
+  155 |             count_4: { ++counts[4]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:152:10: Unsupported: randsequence
+  152 |          randsequence(main)
+      |          ^~~~~~~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:168:19: Unsupported: randsequence production id
+  168 |             main: count_1 check count_2;
+      |                   ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:168:27: Unsupported: randsequence production id
+  168 |             main: count_1 check count_2;
+      |                           ^~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:168:33: Unsupported: randsequence production id
+  168 |             main: count_1 check count_2;
+      |                                 ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:168:17: Unsupported: randsequence production
+  168 |             main: count_1 check count_2;
+      |                 ^
+%Error-UNSUPPORTED: t/t_randsequence.v:169:20: Unsupported: randsequence production id
+  169 |             check: count_3 { if (fiftyfifty) break; } count_4;
+      |                    ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:169:55: Unsupported: randsequence production id
+  169 |             check: count_3 { if (fiftyfifty) break; } count_4;
+      |                                                       ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:169:18: Unsupported: randsequence production
+  169 |             check: count_3 { if (fiftyfifty) break; } count_4;
+      |                  ^
+%Error-UNSUPPORTED: t/t_randsequence.v:170:20: Unsupported: randsequence production
+  170 |             count_1: { ++counts[1]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:171:20: Unsupported: randsequence production
+  171 |             count_2: { ++counts[2]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:172:20: Unsupported: randsequence production
+  172 |             count_3: { ++counts[3]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:173:20: Unsupported: randsequence production
+  173 |             count_4: { ++counts[4]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:167:10: Unsupported: randsequence
+  167 |          randsequence(main)
+      |          ^~~~~~~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:186:19: Unsupported: randsequence production id
+  186 |             main: count_1 check count_2;
+      |                   ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:186:27: Unsupported: randsequence production id
+  186 |             main: count_1 check count_2;
+      |                           ^~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:186:33: Unsupported: randsequence production id
+  186 |             main: count_1 check count_2;
+      |                                 ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:186:17: Unsupported: randsequence production
+  186 |             main: count_1 check count_2;
+      |                 ^
+%Error-UNSUPPORTED: t/t_randsequence.v:187:20: Unsupported: randsequence production id
+  187 |             check: count_3 { if (fiftyfifty) return; } count_4;
+      |                    ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:187:56: Unsupported: randsequence production id
+  187 |             check: count_3 { if (fiftyfifty) return; } count_4;
+      |                                                        ^~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:187:18: Unsupported: randsequence production
+  187 |             check: count_3 { if (fiftyfifty) return; } count_4;
+      |                  ^
+%Error-UNSUPPORTED: t/t_randsequence.v:188:20: Unsupported: randsequence production
+  188 |             count_1: { ++counts[1]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:189:20: Unsupported: randsequence production
+  189 |             count_2: { ++counts[2]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:190:20: Unsupported: randsequence production
+  190 |             count_3: { ++counts[3]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:191:20: Unsupported: randsequence production
+  191 |             count_4: { ++counts[4]; };
+      |                    ^
+%Error-UNSUPPORTED: t/t_randsequence.v:185:10: Unsupported: randsequence
+  185 |          randsequence(main)
+      |          ^~~~~~~~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:203:19: Unsupported: randsequence production id
+  203 |             main: f_1 f_2 f_3;
+      |                   ^~~
+%Error-UNSUPPORTED: t/t_randsequence.v:203:23: Unsupported: randsequence production id
+  203 |             main: f_1 f_2 f_3;
+      |                       ^~~
+%Error-UNSUPPORTED: t/t_randsequence.v:203:27: Unsupported: randsequence production id
+  203 |             main: f_1 f_2 f_3;
+      |                           ^~~
+%Error-UNSUPPORTED: t/t_randsequence.v:203:17: Unsupported: randsequence production
+  203 |             main: f_1 f_2 f_3;
+      |                 ^
+%Error-UNSUPPORTED: t/t_randsequence.v:204:19: Unsupported: randsequence production id
+  204 |             f_1 : func(10);
+      |                   ^~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:204:17: Unsupported: randsequence production
+  204 |             f_1 : func(10);
+      |                 ^
+%Error-UNSUPPORTED: t/t_randsequence.v:205:19: Unsupported: randsequence production id
+  205 |             f_2 : func(20);
+      |                   ^~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:205:17: Unsupported: randsequence production
+  205 |             f_2 : func(20);
+      |                 ^
+%Error-UNSUPPORTED: t/t_randsequence.v:206:19: Unsupported: randsequence production id
+  206 |             f_3 : fnoarg;
+      |                   ^~~~~~
+%Error-UNSUPPORTED: t/t_randsequence.v:206:17: Unsupported: randsequence production
+  206 |             f_3 : fnoarg;
+      |                 ^
+%Error-UNSUPPORTED: t/t_randsequence.v:207:30: Unsupported: randsequence production
+  207 |             void func(int n) : { counts[1] += n; };
+      |                              ^
+%Error-UNSUPPORTED: t/t_randsequence.v:208:25: Unsupported: randsequence production
+  208 |             void fnoarg : { ++counts[2]; };
+      |                         ^
+%Error-UNSUPPORTED: t/t_randsequence.v:202:10: Unsupported: randsequence
+  202 |          randsequence(main)
+      |          ^~~~~~~~~~~~
 %Error: Exiting due to

test_regress/t/t_randsequence.py

@@ -11,7 +11,9 @@ import vltest_bootstrap
 
 test.scenarios('simulator')
 
-test.compile(fails=test.vlt_all, expect_filename=test.golden_filename)
+test.compile(verilator_flags2=['--error-limit 999'],
+             fails=test.vlt_all,
+             expect_filename=test.golden_filename)
 
 if not test.vlt_all:
     test.execute()

test_regress/t/t_var_pins_bad.out

@@ -0,0 +1,3 @@
+%Error: --pins-bv maximum is 65: 99
+        ... See the manual at https://verilator.org/verilator_doc.html?v=latest for more assistance.
+%Error: Exiting due to

test_regress/t/t_var_pins_bad.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python3
+# DESCRIPTION: Verilator: Verilog Test driver/expect definition
+#
+# Copyright 2024 by Wilson Snyder. 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-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+import vltest_bootstrap
+
+test.scenarios('vlt')
+test.top_filename = 't/t_EXAMPLE.v'
+
+test.lint(verilator_flags2=["--pins-bv 99"], fails=True, expect_filename=test.golden_filename)
+
+test.passes()