Text file src/cmd/go/testdata/script/test_flags.txt

     1  env GO111MODULE=on
     2  
     3  [short] skip
     4  
     5  # Arguments after the flag terminator should be ignored.
     6  # If we pass '-- -test.v', we should not get verbose output
     7  # *and* output from the test should not be echoed.
     8  go test ./x -- -test.v
     9  stdout '\Aok\s+example.com/x\s+[0-9.s]+\n\z'
    10  ! stderr .
    11  
    12  # For backward-compatibility with previous releases of the 'go' command,
    13  # arguments that appear after unrecognized flags should not be treated
    14  # as packages, even if they are unambiguously not arguments to flags.
    15  # Even though ./x looks like a package path, the real package should be
    16  # the implicit '.'.
    17  ! go test --answer=42 ./x
    18  stderr '^no Go files in '$PWD'$'
    19  
    20  # However, *flags* that appear after unrecognized flags should still be
    21  # interpreted as flags, under the (possibly-erroneous) assumption that
    22  # unrecognized flags are non-boolean.
    23  
    24  go test -v -x ./x -timeout 24h -boolflag=true foo -timeout 25h
    25  stdout 'args: foo -timeout 25h'
    26  stdout 'timeout: 24h0m0s$'  # -timeout is unambiguously not a flag, so the real flag wins.
    27  
    28  go test -v -x ./x -timeout 24h -boolflag foo -timeout 25h
    29  stdout 'args: foo -test\.timeout=25h0m0s'  # For legacy reasons, '-timeout ' is erroneously rewritten to -test.timeout; see https://golang.org/issue/40763.
    30  stdout 'timeout: 24h0m0s$'  # Actual flag wins.
    31  
    32  go test -v -x ./x -timeout 24h -stringflag foo -timeout 25h
    33  stdout 'args: $'
    34  stdout 'timeout: 25h0m0s$'  # Later flag wins.
    35  
    36  # An explicit '-outputdir=' argument should set test.outputdir
    37  # to the 'go' command's working directory, not zero it out
    38  # for the test binary.
    39  go test -x -coverprofile=cover.out '-outputdir=' ./x
    40  stderr '-test.outputdir=[^ ]'
    41  exists ./cover.out
    42  ! exists ./x/cover.out
    43  
    44  # Test flags from GOFLAGS should be forwarded to the test binary,
    45  # with the 'test.' prefix in the GOFLAGS entry...
    46  env GOFLAGS='-test.timeout=24h0m0s -count=1'
    47  go test -v -x ./x
    48  stdout 'timeout: 24h0m0s$'
    49  stderr '-test.count=1'
    50  
    51  # ...or without.
    52  env GOFLAGS='-timeout=24h0m0s -count=1'
    53  go test -v -x ./x
    54  stdout 'timeout: 24h0m0s$'
    55  stderr '-test.count=1'
    56  
    57  # Arguments from the command line should override GOFLAGS...
    58  go test -v -x -timeout=25h0m0s ./x
    59  stdout 'timeout: 25h0m0s$'
    60  stderr '-test.count=1'
    61  
    62  # ...even if they use a different flag name.
    63  go test -v -x -test.timeout=26h0m0s ./x
    64  stdout 'timeout: 26h0m0s$'
    65  stderr '-test\.timeout=26h0m0s'
    66  ! stderr 'timeout=24h0m0s'
    67  stderr '-test.count=1'
    68  
    69  # Invalid flags should be reported exactly once.
    70  ! go test -covermode=walrus ./x
    71  stderr -count=1 'invalid value "walrus" for flag -covermode: valid modes are .*$'
    72  stderr '^usage: go test .*$'
    73  stderr '^Run ''go help test'' and ''go help testflag'' for details.$'
    74  
    75  # Passing -help to the test binary should show flag help.
    76  go test ./x -args -help
    77  stdout 'usage_message'
    78  
    79  # -covermode, -coverpkg, and -coverprofile should imply -cover
    80  go test -covermode=set ./x
    81  stdout '\s+coverage:\s+'
    82  
    83  go test -coverpkg=encoding/binary ./x
    84  stdout '\s+coverage:\s+'
    85  
    86  go test -coverprofile=cover.out ./x
    87  stdout '\s+coverage:\s+'
    88  exists ./cover.out
    89  rm ./cover.out
    90  
    91  # -*profile and -trace flags should force output to the current working directory
    92  # or -outputdir, not the directory containing the test.
    93  
    94  go test -memprofile=mem.out ./x
    95  exists ./mem.out
    96  rm ./mem.out
    97  
    98  go test -trace=trace.out ./x
    99  exists ./trace.out
   100  rm ./trace.out
   101  
   102  # Relative paths with -outputdir should be relative to the go command's working
   103  # directory, not the directory containing the test.
   104  mkdir profiles
   105  go test -memprofile=mem.out -outputdir=./profiles ./x
   106  exists ./profiles/mem.out
   107  rm profiles
   108  
   109  -- go.mod --
   110  module example.com
   111  go 1.14
   112  -- x/x_test.go --
   113  package x
   114  
   115  import (
   116  	"flag"
   117  	"strings"
   118  	"testing"
   119  )
   120  
   121  var _ = flag.String("usage_message", "", "dummy flag to check usage message")
   122  var boolflag = flag.Bool("boolflag", false, "ignored boolean flag")
   123  var stringflag = flag.String("stringflag", "", "ignored string flag")
   124  
   125  func TestLogTimeout(t *testing.T) {
   126  	t.Logf("timeout: %v", flag.Lookup("test.timeout").Value)
   127  }
   128  
   129  func TestLogArgs(t *testing.T) {
   130  	t.Logf("args: %s", strings.Join(flag.Args(), " "))
   131  }
   132  

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