84 lines
2.2 KiB
V
84 lines
2.2 KiB
V
import (
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os
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term
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benchmark
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filepath
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v.fmt
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v.parser
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v.table
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)
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const (
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error_missing_vexe = 1
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error_missing_diff = 2
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error_failed_tests = 3
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)
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fn test_fmt() {
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fmt_message := 'vfmt tests'
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eprintln(term.header(fmt_message,'-'))
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vexe := os.getenv('VEXE')
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if vexe.len == 0 || !os.exists(vexe) {
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eprintln('VEXE must be set')
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exit(error_missing_vexe)
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}
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vroot := filepath.dir(vexe)
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tmpfolder := os.tmpdir()
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diff_cmd := find_working_diff_command() or { '' }
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mut fmt_bench := benchmark.new_benchmark()
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// Lookup the existing test _input.vv files:
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input_files := os.walk_ext('$vroot/vlib/v/fmt/tests', '_input.vv')
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fmt_bench.set_total_expected_steps( input_files.len )
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for istep, ipath in input_files {
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fmt_bench.cstep = istep
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fmt_bench.step()
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ifilename := filepath.filename(ipath)
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opath := ipath.replace('_input.vv', '_expected.vv')
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if !os.exists(opath) {
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fmt_bench.fail()
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eprintln(fmt_bench.step_message_fail('missing file ${opath}'))
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continue
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}
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expected_ocontent := os.read_file(opath) or {
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fmt_bench.fail()
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eprintln(fmt_bench.step_message_fail('cannot read from ${opath}'))
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continue
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}
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table := table.new_table()
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file_ast := parser.parse_file(ipath, table)
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result_ocontent := fmt.fmt(file_ast, table)
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if expected_ocontent != result_ocontent {
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fmt_bench.fail()
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eprintln(fmt_bench.step_message_fail('file ${ipath} after formatting, does not look as expected.'))
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if diff_cmd == '' {
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eprintln('>> sorry, but no working "diff" CLI command can be found')
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continue
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}
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vfmt_result_file := filepath.join(tmpfolder,'vfmt_run_over_${ifilename}')
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os.write_file(vfmt_result_file, result_ocontent)
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os.system('$diff_cmd --minimal --text --unified=2 --show-function-line="fn " "$opath" "$vfmt_result_file"')
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continue
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}
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fmt_bench.ok()
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eprintln(fmt_bench.step_message_ok('${ipath}'))
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}
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fmt_bench.stop()
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eprintln(term.h_divider('-'))
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eprintln(fmt_bench.total_message(fmt_message))
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if fmt_bench.nfail > 0 {
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exit(error_failed_tests)
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}
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}
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fn find_working_diff_command() ?string {
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for diffcmd in ['colordiff', 'diff', 'colordiff.exe', 'diff.exe'] {
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p := os.exec('$diffcmd --version') or {
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continue
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}
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if p.exit_code == 0 {
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return diffcmd
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}
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}
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return error('no working diff command found')
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}
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