v/tools/modules/testing/common.v

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module testing
import (
os
term
benchmark
filepath
runtime
sync
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)
pub struct TestSession {
pub mut:
files []string
vexe string
vargs string
failed bool
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benchmark benchmark.Benchmark
ntask int // writing to this should be locked by mu.
ntask_mtx &sync.Mutex
waitgroup &sync.WaitGroup
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}
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pub fn new_test_session(vargs string) TestSession {
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return TestSession{
vexe: vexe_path()
vargs: vargs
ntask: 0
ntask_mtx: sync.new_mutex()
waitgroup: sync.new_waitgroup()
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}
}
pub fn vexe_path() string {
// NB: tools extracted from v require that the VEXE
// environment variable contains the path to the v executable location.
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// They are usually launched by vlib/compiler/vtools.v,
// launch_tool/1 , which provides it.
return os.getenv('VEXE')
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}
pub fn (ts mut TestSession) init() {
ts.benchmark = benchmark.new_benchmark()
}
pub fn (ts mut TestSession) test() {
ts.init()
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mut remaining_files := []string
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for dot_relative_file in ts.files {
relative_file := dot_relative_file.replace('./', '')
file := os.realpath(relative_file)
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$if windows {
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if file.contains('sqlite') || file.contains('httpbin') {
continue
}
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}
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$if !macos {
if file.contains('customer') {
continue
}
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}
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$if msvc {
if file.contains('asm') {
continue
}
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}
$if tinyc {
if file.contains('asm') {
continue
}
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}
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remaining_files << dot_relative_file
}
ts.files = remaining_files
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ts.benchmark.set_total_expected_steps(remaining_files.len)
mut ncpus := runtime.nr_cpus()
$if msvc {
// NB: MSVC can not be launched in parallel, without giving it
// the option /FS because it uses a shared PDB file, which should
// be locked, but that makes writing slower...
// See: https://docs.microsoft.com/en-us/cpp/build/reference/fs-force-synchronous-pdb-writes?view=vs-2019
// Instead, just run tests on 1 core for now.
ncpus = 1
}
ts.waitgroup.add( ncpus )
for i:=0; i < ncpus; i++ {
go process_in_thread(ts)
}
ts.waitgroup.wait()
ts.benchmark.stop()
eprintln(term.h_divider())
}
fn process_in_thread(ts mut TestSession){
ts.process_files()
ts.waitgroup.done()
}
fn (ts mut TestSession) process_files() {
tmpd := os.tmpdir()
show_stats := '-stats' in ts.vargs.split(' ')
mut tls_bench := benchmark.new_benchmark() // tls_bench is used to format the step messages/timings
tls_bench.set_total_expected_steps( ts.benchmark.nexpected_steps )
for {
ts.ntask_mtx.lock()
ts.ntask++
idx := ts.ntask-1
ts.ntask_mtx.unlock()
if idx >= ts.files.len { break }
tls_bench.cstep = idx
dot_relative_file := ts.files[ idx ]
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relative_file := dot_relative_file.replace('./', '')
file := os.realpath(relative_file)
// Ensure that the generated binaries will be stored in the temporary folder.
// Remove them after a test passes/fails.
fname := filepath.filename(file)
generated_binary_fname := if os.user_os() == 'windows' { fname.replace('.v', '.exe') } else { fname.replace('.v', '') }
generated_binary_fpath := filepath.join(tmpd,generated_binary_fname)
if os.exists(generated_binary_fpath) {
os.rm(generated_binary_fpath)
}
mut cmd_options := [ts.vargs]
if !ts.vargs.contains('fmt') {
cmd_options << ' -o "$generated_binary_fpath"'
}
cmd := '"${ts.vexe}" ' + cmd_options.join(' ') + ' "${file}"'
// eprintln('>>> v cmd: $cmd')
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ts.benchmark.step()
tls_bench.step()
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if show_stats {
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eprintln('-------------------------------------------------')
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status := os.system(cmd)
if status == 0 {
ts.benchmark.ok()
tls_bench.ok()
}
else {
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ts.failed = true
ts.benchmark.fail()
tls_bench.fail()
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continue
}
}
else {
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r := os.exec(cmd) or {
ts.failed = true
ts.benchmark.fail()
tls_bench.fail()
eprintln(tls_bench.step_message_fail(relative_file))
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continue
}
if r.exit_code != 0 {
ts.failed = true
ts.benchmark.fail()
tls_bench.fail()
eprintln(tls_bench.step_message_fail('${relative_file}\n`$file`\n (\n$r.output\n)'))
}
else {
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ts.benchmark.ok()
tls_bench.ok()
eprintln(tls_bench.step_message_ok(relative_file))
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}
}
if os.exists(generated_binary_fpath) {
os.rm(generated_binary_fpath)
}
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}
}
pub fn vlib_should_be_present(parent_dir string) {
vlib_dir := filepath.join(parent_dir,'vlib')
if !os.is_dir(vlib_dir) {
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eprintln('$vlib_dir is missing, it must be next to the V executable')
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exit(1)
}
}
pub fn v_build_failing(zargs string, folder string) bool {
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main_label := 'Building $folder ...'
finish_label := 'building $folder'
vexe := vexe_path()
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parent_dir := filepath.dir(vexe)
vlib_should_be_present(parent_dir)
vargs := zargs.replace(vexe, '')
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eprintln(main_label)
eprintln(' v compiler args: "$vargs"')
mut session := new_test_session(vargs)
files := os.walk_ext(filepath.join(parent_dir,folder), '.v')
mut mains := files.filter(!it.contains('modules') && !it.contains('preludes'))
$if windows {
// skip pico example on windows
// there was a bug using filter here
mut mains_filtered := []string
for file in mains {
if !file.ends_with('examples\\pico\\pico.v') {
mains_filtered << file
}
}
mains = mains_filtered
}
session.files << mains
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session.test()
eprintln(session.benchmark.total_message(finish_label))
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return session.failed
}
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pub fn build_v_cmd_failed(cmd string) bool {
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res := os.exec(cmd) or {
return true
}
if res.exit_code != 0 {
eprintln('')
eprintln(res.output)
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return true
}
return false
}
pub fn building_any_v_binaries_failed() bool {
eprintln('Building V binaries...')
eprintln('VFLAGS is: "' + os.getenv('VFLAGS') + '"')
vexe := testing.vexe_path()
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parent_dir := filepath.dir(vexe)
testing.vlib_should_be_present(parent_dir)
os.chdir(parent_dir)
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mut failed := false
v_build_commands := ['$vexe -o v_g -g v.v',
'$vexe -o v_prod_g -prod -g v.v',
'$vexe -o v_cg -cg v.v',
'$vexe -o v_prod_cg -prod -cg v.v',
'$vexe -o v_prod -prod v.v',
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]
mut bmark := benchmark.new_benchmark()
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for cmd in v_build_commands {
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bmark.step()
if build_v_cmd_failed(cmd) {
bmark.fail()
failed = true
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eprintln(bmark.step_message_fail('command: ${cmd} . See details above ^^^^^^^'))
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eprintln('')
continue
}
bmark.ok()
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eprintln(bmark.step_message_ok('command: ${cmd}'))
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}
bmark.stop()
eprintln(term.h_divider())
eprintln(bmark.total_message('building v binaries'))
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return failed
}