--- write_verilog basic ---
PASS: basic write_verilog created non-empty file
--- write_verilog -include_pwr_gnd ---
PASS: write_verilog -include_pwr_gnd created non-empty file
--- write_verilog -remove_cells (empty list) ---
PASS: write_verilog -remove_cells {} created non-empty file
--- compare pwr_gnd vs basic output ---
basic size: 194, pwr_gnd size: 194
PASS: pwr_gnd output is >= basic output size
--- compare remove_cells vs basic output ---
basic size: 194, remove_cells size: 194
--- write_verilog -sort (deprecated, should warn) ---
Warning: verilog_write_options.tcl line 1, The -sort flag is ignored.
write_verilog -sort: 
PASS: write_verilog -sort created file (with deprecation warning)
--- read_verilog / write_verilog roundtrip ---
PASS: roundtrip write completed
ALL PASSED