-
Notifications
You must be signed in to change notification settings - Fork 17.3k
/
test.go
1751 lines (1613 loc) · 50.7 KB
/
test.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"bytes"
"flag"
"fmt"
"io/ioutil"
"log"
"os"
"os/exec"
"path"
"path/filepath"
"reflect"
"regexp"
"runtime"
"strconv"
"strings"
"sync"
"time"
)
func cmdtest() {
gogcflags = os.Getenv("GO_GCFLAGS")
var t tester
var noRebuild bool
flag.BoolVar(&t.listMode, "list", false, "list available tests")
flag.BoolVar(&t.rebuild, "rebuild", false, "rebuild everything first")
flag.BoolVar(&noRebuild, "no-rebuild", false, "overrides -rebuild (historical dreg)")
flag.BoolVar(&t.keepGoing, "k", false, "keep going even when error occurred")
flag.BoolVar(&t.race, "race", false, "run in race builder mode (different set of tests)")
flag.BoolVar(&t.compileOnly, "compile-only", false, "compile tests, but don't run them. This is for some builders. Not all dist tests respect this flag, but most do.")
flag.StringVar(&t.banner, "banner", "##### ", "banner prefix; blank means no section banners")
flag.StringVar(&t.runRxStr, "run", os.Getenv("GOTESTONLY"),
"run only those tests matching the regular expression; empty means to run all. "+
"Special exception: if the string begins with '!', the match is inverted.")
flag.BoolVar(&t.msan, "msan", false, "run in memory sanitizer builder mode")
flag.BoolVar(&t.asan, "asan", false, "run in address sanitizer builder mode")
xflagparse(-1) // any number of args
if noRebuild {
t.rebuild = false
}
t.run()
}
// tester executes cmdtest.
type tester struct {
race bool
msan bool
asan bool
listMode bool
rebuild bool
failed bool
keepGoing bool
compileOnly bool // just try to compile all tests, but no need to run
runRxStr string
runRx *regexp.Regexp
runRxWant bool // want runRx to match (true) or not match (false)
runNames []string // tests to run, exclusive with runRx; empty means all
banner string // prefix, or "" for none
lastHeading string // last dir heading printed
cgoEnabled bool
partial bool
haveTime bool // the 'time' binary is available
tests []distTest
timeoutScale int
worklist []*work
}
type work struct {
dt *distTest
cmd *exec.Cmd
start chan bool
out []byte
err error
end chan bool
}
// A distTest is a test run by dist test.
// Each test has a unique name and belongs to a group (heading)
type distTest struct {
name string // unique test name; may be filtered with -run flag
heading string // group section; this header is printed before the test is run.
fn func(*distTest) error
}
func (t *tester) run() {
timelog("start", "dist test")
os.Setenv("PATH", fmt.Sprintf("%s%c%s", gorootBin, os.PathListSeparator, os.Getenv("PATH")))
cmd := exec.Command(gorootBinGo, "env", "CGO_ENABLED")
cmd.Stderr = new(bytes.Buffer)
slurp, err := cmd.Output()
if err != nil {
fatalf("Error running go env CGO_ENABLED: %v\n%s", err, cmd.Stderr)
}
t.cgoEnabled, _ = strconv.ParseBool(strings.TrimSpace(string(slurp)))
if flag.NArg() > 0 && t.runRxStr != "" {
fatalf("the -run regular expression flag is mutually exclusive with test name arguments")
}
t.runNames = flag.Args()
if t.hasBash() {
if _, err := exec.LookPath("time"); err == nil {
t.haveTime = true
}
}
// Set GOTRACEBACK to system if the user didn't set a level explicitly.
// Since we're running tests for Go, we want as much detail as possible
// if something goes wrong.
//
// Set it before running any commands just in case something goes wrong.
if ok := isEnvSet("GOTRACEBACK"); !ok {
if err := os.Setenv("GOTRACEBACK", "system"); err != nil {
if t.keepGoing {
log.Printf("Failed to set GOTRACEBACK: %v", err)
} else {
fatalf("Failed to set GOTRACEBACK: %v", err)
}
}
}
if t.rebuild {
t.out("Building packages and commands.")
// Force rebuild the whole toolchain.
goInstall("go", append([]string{"-a", "-i"}, toolchain...)...)
}
if !t.listMode {
if os.Getenv("GO_BUILDER_NAME") == "" {
// Complete rebuild bootstrap, even with -no-rebuild.
// If everything is up-to-date, this is a no-op.
// If everything is not up-to-date, the first checkNotStale
// during the test process will kill the tests, so we might
// as well install the world.
// Now that for example "go install cmd/compile" does not
// also install runtime (you need "go install -i cmd/compile"
// for that), it's easy for previous workflows like
// "rebuild the compiler and then run run.bash"
// to break if we don't automatically refresh things here.
// Rebuilding is a shortened bootstrap.
// See cmdbootstrap for a description of the overall process.
goInstall("go", append([]string{"-i"}, toolchain...)...)
goInstall("go", append([]string{"-i"}, toolchain...)...)
goInstall("go", "std", "cmd")
} else {
// The Go builder infrastructure should always begin running tests from a
// clean, non-stale state, so there is no need to rebuild the world.
// Instead, we can just check that it is not stale, which may be less
// expensive (and is also more likely to catch bugs in the builder
// implementation).
willTest := []string{"std"}
if t.shouldTestCmd() {
willTest = append(willTest, "cmd")
}
checkNotStale("go", willTest...)
}
}
t.timeoutScale = 1
switch goarch {
case "arm":
t.timeoutScale = 2
case "mips", "mipsle", "mips64", "mips64le":
t.timeoutScale = 4
}
if s := os.Getenv("GO_TEST_TIMEOUT_SCALE"); s != "" {
t.timeoutScale, err = strconv.Atoi(s)
if err != nil {
fatalf("failed to parse $GO_TEST_TIMEOUT_SCALE = %q as integer: %v", s, err)
}
}
if t.runRxStr != "" {
if t.runRxStr[0] == '!' {
t.runRxWant = false
t.runRxStr = t.runRxStr[1:]
} else {
t.runRxWant = true
}
t.runRx = regexp.MustCompile(t.runRxStr)
}
t.registerTests()
if t.listMode {
for _, tt := range t.tests {
fmt.Println(tt.name)
}
return
}
for _, name := range t.runNames {
if !t.isRegisteredTestName(name) {
fatalf("unknown test %q", name)
}
}
// On a few builders, make GOROOT unwritable to catch tests writing to it.
if strings.HasPrefix(os.Getenv("GO_BUILDER_NAME"), "linux-") {
if os.Getuid() == 0 {
// Don't bother making GOROOT unwritable:
// we're running as root, so permissions would have no effect.
} else {
xatexit(t.makeGOROOTUnwritable())
}
}
if err := t.maybeLogMetadata(); err != nil {
t.failed = true
if t.keepGoing {
log.Printf("Failed logging metadata: %v", err)
} else {
fatalf("Failed logging metadata: %v", err)
}
}
for _, dt := range t.tests {
if !t.shouldRunTest(dt.name) {
t.partial = true
continue
}
dt := dt // dt used in background after this iteration
if err := dt.fn(&dt); err != nil {
t.runPending(&dt) // in case that hasn't been done yet
t.failed = true
if t.keepGoing {
log.Printf("Failed: %v", err)
} else {
fatalf("Failed: %v", err)
}
}
}
t.runPending(nil)
timelog("end", "dist test")
if t.failed {
fmt.Println("\nFAILED")
xexit(1)
} else if incomplete[goos+"/"+goarch] {
// The test succeeded, but consider it as failed so we don't
// forget to remove the port from the incomplete map once the
// port is complete.
fmt.Println("\nFAILED (incomplete port)")
xexit(1)
} else if t.partial {
fmt.Println("\nALL TESTS PASSED (some were excluded)")
} else {
fmt.Println("\nALL TESTS PASSED")
}
}
func (t *tester) shouldRunTest(name string) bool {
if t.runRx != nil {
return t.runRx.MatchString(name) == t.runRxWant
}
if len(t.runNames) == 0 {
return true
}
for _, runName := range t.runNames {
if runName == name {
return true
}
}
return false
}
func (t *tester) maybeLogMetadata() error {
if t.compileOnly {
// We need to run a subprocess to log metadata. Don't do that
// on compile-only runs.
return nil
}
t.out("Test execution environment.")
// Helper binary to print system metadata (CPU model, etc). This is a
// separate binary from dist so it need not build with the bootstrap
// toolchain.
//
// TODO(prattmic): If we split dist bootstrap and dist test then this
// could be simplified to directly use internal/sysinfo here.
return t.dirCmd(filepath.Join(goroot, "src/cmd/internal/metadata"), "go", []string{"run", "main.go"}).Run()
}
// short returns a -short flag value to use with 'go test'
// or a test binary for tests intended to run in short mode.
// It returns "true", unless the environment variable
// GO_TEST_SHORT is set to a non-empty, false-ish string.
//
// This environment variable is meant to be an internal
// detail between the Go build system and cmd/dist for
// the purpose of longtest builders, and is not intended
// for use by users. See golang.org/issue/12508.
func short() string {
if v := os.Getenv("GO_TEST_SHORT"); v != "" {
short, err := strconv.ParseBool(v)
if err != nil {
fatalf("invalid GO_TEST_SHORT %q: %v", v, err)
}
if !short {
return "false"
}
}
return "true"
}
// goTest returns the beginning of the go test command line.
// Callers should use goTest and then pass flags overriding these
// defaults as later arguments in the command line.
func (t *tester) goTest() []string {
return []string{
"go", "test", "-short=" + short(), "-count=1", t.tags(), t.runFlag(""),
}
}
func (t *tester) tags() string {
if t.iOS() {
return "-tags=lldb"
}
return "-tags="
}
// timeoutDuration converts the provided number of seconds into a
// time.Duration, scaled by the t.timeoutScale factor.
func (t *tester) timeoutDuration(sec int) time.Duration {
return time.Duration(sec) * time.Second * time.Duration(t.timeoutScale)
}
// timeout returns the "-timeout=" string argument to "go test" given
// the number of seconds of timeout. It scales it by the
// t.timeoutScale factor.
func (t *tester) timeout(sec int) string {
return "-timeout=" + t.timeoutDuration(sec).String()
}
// ranGoTest and stdMatches are state closed over by the stdlib
// testing func in registerStdTest below. The tests are run
// sequentially, so there's no need for locks.
//
// ranGoBench and benchMatches are the same, but are only used
// in -race mode.
var (
ranGoTest bool
stdMatches []string
ranGoBench bool
benchMatches []string
)
func (t *tester) registerStdTest(pkg string) {
heading := "Testing packages."
testPrefix := "go_test:"
gcflags := gogcflags
testName := testPrefix + pkg
if t.runRx == nil || t.runRx.MatchString(testName) == t.runRxWant {
stdMatches = append(stdMatches, pkg)
}
t.tests = append(t.tests, distTest{
name: testName,
heading: heading,
fn: func(dt *distTest) error {
if ranGoTest {
return nil
}
t.runPending(dt)
timelog("start", dt.name)
defer timelog("end", dt.name)
ranGoTest = true
timeoutSec := 180
for _, pkg := range stdMatches {
if pkg == "cmd/go" {
timeoutSec *= 3
break
}
}
// Special case for our slow cross-compiled
// qemu builders:
if t.shouldUsePrecompiledStdTest() {
return t.runPrecompiledStdTest(t.timeoutDuration(timeoutSec))
}
args := []string{
"test",
"-short=" + short(),
t.tags(),
t.timeout(timeoutSec),
}
if gcflags != "" {
args = append(args, "-gcflags=all="+gcflags)
}
if t.race {
args = append(args, "-race")
}
if t.msan {
args = append(args, "-msan")
}
if t.asan {
args = append(args, "-asan")
}
if t.compileOnly {
args = append(args, "-run=^$")
}
args = append(args, stdMatches...)
cmd := exec.Command(gorootBinGo, args...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
return cmd.Run()
},
})
}
func (t *tester) registerRaceBenchTest(pkg string) {
testName := "go_test_bench:" + pkg
if t.runRx == nil || t.runRx.MatchString(testName) == t.runRxWant {
benchMatches = append(benchMatches, pkg)
}
t.tests = append(t.tests, distTest{
name: testName,
heading: "Running benchmarks briefly.",
fn: func(dt *distTest) error {
if ranGoBench {
return nil
}
t.runPending(dt)
timelog("start", dt.name)
defer timelog("end", dt.name)
ranGoBench = true
args := []string{
"test",
"-short=" + short(),
"-race",
t.timeout(1200), // longer timeout for race with benchmarks
"-run=^$", // nothing. only benchmarks.
"-benchtime=.1s",
"-cpu=4",
}
if !t.compileOnly {
args = append(args, "-bench=.*")
}
args = append(args, benchMatches...)
cmd := exec.Command(gorootBinGo, args...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
return cmd.Run()
},
})
}
// stdOutErrAreTerminals is defined in test_linux.go, to report
// whether stdout & stderr are terminals.
var stdOutErrAreTerminals func() bool
func (t *tester) registerTests() {
// Fast path to avoid the ~1 second of `go list std cmd` when
// the caller lists specific tests to run. (as the continuous
// build coordinator does).
if len(t.runNames) > 0 {
for _, name := range t.runNames {
if strings.HasPrefix(name, "go_test:") {
t.registerStdTest(strings.TrimPrefix(name, "go_test:"))
}
if strings.HasPrefix(name, "go_test_bench:") {
t.registerRaceBenchTest(strings.TrimPrefix(name, "go_test_bench:"))
}
}
} else {
// Use a format string to only list packages and commands that have tests.
const format = "{{if (or .TestGoFiles .XTestGoFiles)}}{{.ImportPath}}{{end}}"
cmd := exec.Command(gorootBinGo, "list", "-f", format)
if t.race {
cmd.Args = append(cmd.Args, "-tags=race")
}
cmd.Args = append(cmd.Args, "std")
if t.shouldTestCmd() {
cmd.Args = append(cmd.Args, "cmd")
}
cmd.Stderr = new(bytes.Buffer)
all, err := cmd.Output()
if err != nil {
fatalf("Error running go list std cmd: %v:\n%s", err, cmd.Stderr)
}
pkgs := strings.Fields(string(all))
for _, pkg := range pkgs {
t.registerStdTest(pkg)
}
if t.race {
for _, pkg := range pkgs {
if t.packageHasBenchmarks(pkg) {
t.registerRaceBenchTest(pkg)
}
}
}
}
// Test the os/user package in the pure-Go mode too.
if !t.compileOnly {
t.tests = append(t.tests, distTest{
name: "osusergo",
heading: "os/user with tag osusergo",
fn: func(dt *distTest) error {
t.addCmd(dt, "src", t.goTest(), t.timeout(300), "-tags=osusergo", "os/user")
return nil
},
})
}
// Test ios/amd64 for the iOS simulator.
if goos == "darwin" && goarch == "amd64" && t.cgoEnabled {
t.tests = append(t.tests, distTest{
name: "amd64ios",
heading: "GOOS=ios on darwin/amd64",
fn: func(dt *distTest) error {
cmd := t.addCmd(dt, "src", t.goTest(), t.timeout(300), "-run=SystemRoots", "crypto/x509")
setEnv(cmd, "GOOS", "ios")
setEnv(cmd, "CGO_ENABLED", "1")
return nil
},
})
}
if t.race {
return
}
// Runtime CPU tests.
if !t.compileOnly && goos != "js" { // js can't handle -cpu != 1
testName := "runtime:cpu124"
t.tests = append(t.tests, distTest{
name: testName,
heading: "GOMAXPROCS=2 runtime -cpu=1,2,4 -quick",
fn: func(dt *distTest) error {
cmd := t.addCmd(dt, "src", t.goTest(), t.timeout(300), "runtime", "-cpu=1,2,4", "-quick")
// We set GOMAXPROCS=2 in addition to -cpu=1,2,4 in order to test runtime bootstrap code,
// creation of first goroutines and first garbage collections in the parallel setting.
setEnv(cmd, "GOMAXPROCS", "2")
return nil
},
})
}
// morestack tests. We only run these on in long-test mode
// (with GO_TEST_SHORT=false) because the runtime test is
// already quite long and mayMoreStackMove makes it about
// twice as slow.
if !t.compileOnly && short() == "false" {
// hooks is the set of maymorestack hooks to test with.
hooks := []string{"mayMoreStackPreempt", "mayMoreStackMove"}
// pkgs is the set of test packages to run.
pkgs := []string{"runtime", "reflect", "sync"}
// hookPkgs is the set of package patterns to apply
// the maymorestack hook to.
hookPkgs := []string{"runtime/...", "reflect", "sync"}
// unhookPkgs is the set of package patterns to
// exclude from hookPkgs.
unhookPkgs := []string{"runtime/testdata/..."}
for _, hook := range hooks {
// Construct the build flags to use the
// maymorestack hook in the compiler and
// assembler. We pass this via the GOFLAGS
// environment variable so that it applies to
// both the test itself and to binaries built
// by the test.
goFlagsList := []string{}
for _, flag := range []string{"-gcflags", "-asmflags"} {
for _, hookPkg := range hookPkgs {
goFlagsList = append(goFlagsList, flag+"="+hookPkg+"=-d=maymorestack=runtime."+hook)
}
for _, unhookPkg := range unhookPkgs {
goFlagsList = append(goFlagsList, flag+"="+unhookPkg+"=")
}
}
goFlags := strings.Join(goFlagsList, " ")
for _, pkg := range pkgs {
pkg := pkg
testName := hook + ":" + pkg
t.tests = append(t.tests, distTest{
name: testName,
heading: "maymorestack=" + hook,
fn: func(dt *distTest) error {
cmd := t.addCmd(dt, "src", t.goTest(), t.timeout(600), pkg, "-short")
setEnv(cmd, "GOFLAGS", goFlags)
return nil
},
})
}
}
}
// This test needs its stdout/stderr to be terminals, so we don't run it from cmd/go's tests.
// See issue 18153.
if goos == "linux" {
t.tests = append(t.tests, distTest{
name: "cmd_go_test_terminal",
heading: "cmd/go terminal test",
fn: func(dt *distTest) error {
t.runPending(dt)
timelog("start", dt.name)
defer timelog("end", dt.name)
if !stdOutErrAreTerminals() {
fmt.Println("skipping terminal test; stdout/stderr not terminals")
return nil
}
cmd := exec.Command(gorootBinGo, "test")
setDir(cmd, filepath.Join(os.Getenv("GOROOT"), "src/cmd/go/testdata/testterminal18153"))
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
return cmd.Run()
},
})
}
// On the builders only, test that a moved GOROOT still works.
// Fails on iOS because CC_FOR_TARGET refers to clangwrap.sh
// in the unmoved GOROOT.
// Fails on Android and js/wasm with an exec format error.
// Fails on plan9 with "cannot find GOROOT" (issue #21016).
if os.Getenv("GO_BUILDER_NAME") != "" && goos != "android" && !t.iOS() && goos != "plan9" && goos != "js" {
t.tests = append(t.tests, distTest{
name: "moved_goroot",
heading: "moved GOROOT",
fn: func(dt *distTest) error {
t.runPending(dt)
timelog("start", dt.name)
defer timelog("end", dt.name)
moved := goroot + "-moved"
if err := os.Rename(goroot, moved); err != nil {
if goos == "windows" {
// Fails on Windows (with "Access is denied") if a process
// or binary is in this directory. For instance, using all.bat
// when run from c:\workdir\go\src fails here
// if GO_BUILDER_NAME is set. Our builders invoke tests
// a different way which happens to work when sharding
// tests, but we should be tolerant of the non-sharded
// all.bat case.
log.Printf("skipping test on Windows")
return nil
}
return err
}
// Run `go test fmt` in the moved GOROOT, without explicitly setting
// GOROOT in the environment. The 'go' command should find itself.
cmd := exec.Command(filepath.Join(moved, "bin", "go"), "test", "fmt")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
unsetEnv(cmd, "GOROOT")
unsetEnv(cmd, "GOCACHE") // TODO(bcmills): ...why‽
err := cmd.Run()
if rerr := os.Rename(moved, goroot); rerr != nil {
fatalf("failed to restore GOROOT: %v", rerr)
}
return err
},
})
}
// Test that internal linking of standard packages does not
// require libgcc. This ensures that we can install a Go
// release on a system that does not have a C compiler
// installed and still build Go programs (that don't use cgo).
for _, pkg := range cgoPackages {
if !t.internalLink() {
break
}
// ARM libgcc may be Thumb, which internal linking does not support.
if goarch == "arm" {
break
}
pkg := pkg
var run string
if pkg == "net" {
run = "TestTCPStress"
}
t.tests = append(t.tests, distTest{
name: "nolibgcc:" + pkg,
heading: "Testing without libgcc.",
fn: func(dt *distTest) error {
// What matters is that the tests build and start up.
// Skip expensive tests, especially x509 TestSystemRoots.
t.addCmd(dt, "src", t.goTest(), "-ldflags=-linkmode=internal -libgcc=none", "-run=^Test[^CS]", pkg, t.runFlag(run))
return nil
},
})
}
// Test internal linking of PIE binaries where it is supported.
if t.internalLinkPIE() {
t.tests = append(t.tests, distTest{
name: "pie_internal",
heading: "internal linking of -buildmode=pie",
fn: func(dt *distTest) error {
t.addCmd(dt, "src", t.goTest(), "reflect", "-buildmode=pie", "-ldflags=-linkmode=internal", t.timeout(60))
return nil
},
})
// Also test a cgo package.
if t.cgoEnabled && t.internalLink() {
t.tests = append(t.tests, distTest{
name: "pie_internal_cgo",
heading: "internal linking of -buildmode=pie",
fn: func(dt *distTest) error {
t.addCmd(dt, "src", t.goTest(), "os/user", "-buildmode=pie", "-ldflags=-linkmode=internal", t.timeout(60))
return nil
},
})
}
}
// sync tests
if goos != "js" { // js doesn't support -cpu=10
t.tests = append(t.tests, distTest{
name: "sync_cpu",
heading: "sync -cpu=10",
fn: func(dt *distTest) error {
t.addCmd(dt, "src", t.goTest(), "sync", t.timeout(120), "-cpu=10", t.runFlag(""))
return nil
},
})
}
if t.raceDetectorSupported() {
t.tests = append(t.tests, distTest{
name: "race",
heading: "Testing race detector",
fn: t.raceTest,
})
}
if t.cgoEnabled && !t.iOS() {
// Disabled on iOS. golang.org/issue/15919
t.registerHostTest("cgo_stdio", "../misc/cgo/stdio", "misc/cgo/stdio", ".")
t.registerHostTest("cgo_life", "../misc/cgo/life", "misc/cgo/life", ".")
fortran := os.Getenv("FC")
if fortran == "" {
fortran, _ = exec.LookPath("gfortran")
}
if t.hasBash() && goos != "android" && fortran != "" {
t.tests = append(t.tests, distTest{
name: "cgo_fortran",
heading: "../misc/cgo/fortran",
fn: func(dt *distTest) error {
t.addCmd(dt, "misc/cgo/fortran", "./test.bash", fortran)
return nil
},
})
}
if t.hasSwig() && goos != "android" {
t.tests = append(t.tests, distTest{
name: "swig_stdio",
heading: "../misc/swig/stdio",
fn: func(dt *distTest) error {
t.addCmd(dt, "misc/swig/stdio", t.goTest())
return nil
},
})
if t.hasCxx() {
t.tests = append(t.tests,
distTest{
name: "swig_callback",
heading: "../misc/swig/callback",
fn: func(dt *distTest) error {
t.addCmd(dt, "misc/swig/callback", t.goTest())
return nil
},
},
distTest{
name: "swig_callback_lto",
heading: "../misc/swig/callback",
fn: func(dt *distTest) error {
cmd := t.addCmd(dt, "misc/swig/callback", t.goTest())
setEnv(cmd, "CGO_CFLAGS", "-flto -Wno-lto-type-mismatch -Wno-unknown-warning-option")
setEnv(cmd, "CGO_CXXFLAGS", "-flto -Wno-lto-type-mismatch -Wno-unknown-warning-option")
setEnv(cmd, "CGO_LDFLAGS", "-flto -Wno-lto-type-mismatch -Wno-unknown-warning-option")
return nil
},
},
)
}
}
}
if t.cgoEnabled {
t.tests = append(t.tests, distTest{
name: "cgo_test",
heading: "../misc/cgo/test",
fn: t.cgoTest,
})
}
// Don't run these tests with $GO_GCFLAGS because most of them
// assume that they can run "go install" with no -gcflags and not
// recompile the entire standard library. If make.bash ran with
// special -gcflags, that's not true.
if t.cgoEnabled && gogcflags == "" {
t.registerHostTest("testgodefs", "../misc/cgo/testgodefs", "misc/cgo/testgodefs", ".")
t.registerTest("testso", "../misc/cgo/testso", t.goTest(), t.timeout(600), ".")
t.registerTest("testsovar", "../misc/cgo/testsovar", t.goTest(), t.timeout(600), ".")
if t.supportedBuildmode("c-archive") {
t.registerHostTest("testcarchive", "../misc/cgo/testcarchive", "misc/cgo/testcarchive", ".")
}
if t.supportedBuildmode("c-shared") {
t.registerHostTest("testcshared", "../misc/cgo/testcshared", "misc/cgo/testcshared", ".")
}
if t.supportedBuildmode("shared") {
t.registerTest("testshared", "../misc/cgo/testshared", t.goTest(), t.timeout(600), ".")
}
if t.supportedBuildmode("plugin") {
t.registerTest("testplugin", "../misc/cgo/testplugin", t.goTest(), t.timeout(600), ".")
}
if gohostos == "linux" && goarch == "amd64" {
t.registerTest("testasan", "../misc/cgo/testasan", "go", "run", ".")
}
if goos == "linux" && goarch != "ppc64le" {
// because syscall.SysProcAttr struct used in misc/cgo/testsanitizers is only built on linux.
// Some inconsistent failures happen on ppc64le so disable for now.
t.registerHostTest("testsanitizers", "../misc/cgo/testsanitizers", "misc/cgo/testsanitizers", ".")
}
if t.hasBash() && goos != "android" && !t.iOS() && gohostos != "windows" {
t.registerHostTest("cgo_errors", "../misc/cgo/errors", "misc/cgo/errors", ".")
}
if gohostos == "linux" && t.extLink() {
t.registerTest("testsigfwd", "../misc/cgo/testsigfwd", "go", "run", ".")
}
}
if goos != "android" && !t.iOS() {
// There are no tests in this directory, only benchmarks.
// Check that the test binary builds but don't bother running it.
// (It has init-time work to set up for the benchmarks that is not worth doing unnecessarily.)
t.registerTest("bench_go1", "../test/bench/go1", t.goTest(), "-c", "-o="+os.DevNull)
}
if goos != "android" && !t.iOS() {
// Only start multiple test dir shards on builders,
// where they get distributed to multiple machines.
// See issues 20141 and 31834.
nShards := 1
if os.Getenv("GO_BUILDER_NAME") != "" {
nShards = 10
}
if n, err := strconv.Atoi(os.Getenv("GO_TEST_SHARDS")); err == nil {
nShards = n
}
for shard := 0; shard < nShards; shard++ {
shard := shard
t.tests = append(t.tests, distTest{
name: fmt.Sprintf("test:%d_%d", shard, nShards),
heading: "../test",
fn: func(dt *distTest) error { return t.testDirTest(dt, shard, nShards) },
})
}
}
// Only run the API check on fast development platforms. Android, iOS, and JS
// are always cross-compiled, and the filesystems on our only plan9 builders
// are too slow to complete in a reasonable timeframe. Every platform checks
// the API on every GOOS/GOARCH/CGO_ENABLED combination anyway, so we really
// only need to run this check once anywhere to get adequate coverage.
if goos != "android" && !t.iOS() && goos != "js" && goos != "plan9" {
t.tests = append(t.tests, distTest{
name: "api",
heading: "API check",
fn: func(dt *distTest) error {
if t.compileOnly {
t.addCmd(dt, "src", "go", "build", "-o", os.DevNull, filepath.Join(goroot, "src/cmd/api/run.go"))
return nil
}
t.addCmd(dt, "src", "go", "run", filepath.Join(goroot, "src/cmd/api/run.go"))
return nil
},
})
}
// Ensure that the toolchain can bootstrap itself.
// This test adds another ~45s to all.bash if run sequentially, so run it only on the builders.
if os.Getenv("GO_BUILDER_NAME") != "" && goos != "android" && !t.iOS() {
t.registerHostTest("reboot", "../misc/reboot", "misc/reboot", ".")
}
}
// isRegisteredTestName reports whether a test named testName has already
// been registered.
func (t *tester) isRegisteredTestName(testName string) bool {
for _, tt := range t.tests {
if tt.name == testName {
return true
}
}
return false
}
func (t *tester) registerTest1(seq bool, name, dirBanner string, cmdline ...interface{}) {
bin, args := flattenCmdline(cmdline)
if bin == "time" && !t.haveTime {
bin, args = args[0], args[1:]
}
if t.isRegisteredTestName(name) {
panic("duplicate registered test name " + name)
}
t.tests = append(t.tests, distTest{
name: name,
heading: dirBanner,
fn: func(dt *distTest) error {
if seq {
t.runPending(dt)
timelog("start", name)
defer timelog("end", name)
return t.dirCmd(filepath.Join(goroot, "src", dirBanner), bin, args).Run()
}
t.addCmd(dt, filepath.Join(goroot, "src", dirBanner), bin, args)
return nil
},
})
}
func (t *tester) registerTest(name, dirBanner string, cmdline ...interface{}) {
t.registerTest1(false, name, dirBanner, cmdline...)
}
func (t *tester) registerSeqTest(name, dirBanner string, cmdline ...interface{}) {
t.registerTest1(true, name, dirBanner, cmdline...)
}
func (t *tester) bgDirCmd(dir, bin string, args ...string) *exec.Cmd {
cmd := exec.Command(bin, args...)
if filepath.IsAbs(dir) {
setDir(cmd, dir)
} else {
setDir(cmd, filepath.Join(goroot, dir))
}
return cmd
}
func (t *tester) dirCmd(dir string, cmdline ...interface{}) *exec.Cmd {
bin, args := flattenCmdline(cmdline)
cmd := t.bgDirCmd(dir, bin, args...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if vflag > 1 {
errprintf("%s\n", strings.Join(cmd.Args, " "))
}
return cmd
}
// flattenCmdline flattens a mixture of string and []string as single list
// and then interprets it as a command line: first element is binary, then args.
func flattenCmdline(cmdline []interface{}) (bin string, args []string) {
var list []string
for _, x := range cmdline {
switch x := x.(type) {
case string:
list = append(list, x)
case []string:
list = append(list, x...)
default:
panic("invalid addCmd argument type: " + reflect.TypeOf(x).String())
}
}
// The go command is too picky about duplicated flags.
// Drop all but the last of the allowed duplicated flags.
drop := make([]bool, len(list))
have := map[string]int{}
for i := 1; i < len(list); i++ {
j := strings.Index(list[i], "=")
if j < 0 {
continue
}
flag := list[i][:j]
switch flag {
case "-run", "-tags":
if have[flag] != 0 {
drop[have[flag]] = true
}
have[flag] = i
}
}
out := list[:0]
for i, x := range list {
if !drop[i] {
out = append(out, x)
}
}
list = out