v/cmd/tools/vvet/vet_test.v

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import os
import rand
import term
import v.util.vtest
import v.util.diff
const diff_cmd = find_diff_cmd()
fn find_diff_cmd() string {
res := diff.find_working_diff_command() or { '' }
return res
}
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fn test_vet() ? {
vexe := os.getenv('VEXE')
vroot := os.dir(vexe)
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os.chdir(vroot) ?
test_dir := 'cmd/tools/vvet/tests'
tests := get_tests_in_dir(test_dir)
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fails := check_path(vexe, test_dir, tests)
assert fails == 0
}
fn get_tests_in_dir(dir string) []string {
files := os.ls(dir) or { panic(err) }
mut tests := files.filter(it.ends_with('.vv'))
tests.sort()
return tests
}
fn check_path(vexe string, dir string, tests []string) int {
mut nb_fail := 0
paths := vtest.filter_vtest_only(tests, basepath: dir)
for path in paths {
program := path
print(path + ' ')
// -force is needed so that `v vet` would not skip the regression files
res := os.execute('${os.quoted_path(vexe)} vet -force -nocolor ${os.quoted_path(program)}')
if res.exit_code < 0 {
panic(res.output)
}
mut expected := os.read_file(program.replace('.vv', '') + '.out') or { panic(err) }
expected = clean_line_endings(expected)
found := clean_line_endings(res.output)
if expected != found {
println(term.red('FAIL'))
println('============')
println('expected:')
println(expected)
println('============')
println('found:')
println(found)
println('============\n')
println('diff:')
println(diff.color_compare_strings(diff_cmd, rand.ulid(), found, expected))
println('============\n')
nb_fail++
} else {
println(term.green('OK'))
}
}
return nb_fail
}
fn clean_line_endings(s string) string {
mut res := s.trim_space()
res = res.replace(' \n', '\n')
res = res.replace(' \r\n', '\n')
res = res.replace('\r\n', '\n')
res = res.trim('\n')
return res
}