import os const source = 'vlib/flag/testdata/simplest_flag_program.v' const simple_flag_app_executable = os.real_path(os.join_path(os.cache_dir(), 'simple_flag_app.exe')) fn testsuite_begin() { os.chdir(@VMODROOT) os.rm(simple_flag_app_executable) or {} res := os.execute('${@VEXE} -o $simple_flag_app_executable $source') assert res.exit_code == 0 assert os.execute(simple_flag_app_executable).exit_code == 0 } fn testsuite_end() { os.rm(simple_flag_app_executable) or {} assert true } fn check_program(opts string, extension string) { result := source.replace('.v', extension) res := os.execute('$simple_flag_app_executable $opts') lines := os.read_lines(result) or { panic(err) } assert res.exit_code == 0 assert res.output.split_into_lines() == lines } fn test_default_builtin_flag_options() { check_program('', '.out') check_program(' -- --help', '.dashdash.help.out') check_program(' -- --version', '.dashdash.version.out') check_program(' -h', '.help.out') check_program(' --help', '.help.out') check_program(' --version', '.version.out') }