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LEARN ABOUT DEBIAN

go-testflag

GO-TESTFLAG(7)						 Miscellaneous Information Manual					    GO-TESTFLAG(7)

NAME

       go - tool for managing Go source code

DESCRIPTION

       The 'go test' command takes both flags that apply to 'go test' itself and flags that apply to the resulting test binary.

       The test binary, called pkg.test, where pkg is the name of the directory containing the package sources, has its own flags:

       -test.v
	      Verbose output: log all tests as they are run.

       -test.run pattern
	      Run only those tests and examples matching the regular expression.

       -test.bench pattern
	      Run benchmarks matching the regular expression.  By default, no benchmarks run.

       -test.cpuprofile cpu.out
	      Write a CPU profile to the specified file before exiting.

       -test.memprofile mem.out
	      Write a memory profile to the specified file when all tests are complete.

       -test.memprofilerate n
	      Enable more precise (and expensive) memory profiles by setting runtime.MemProfileRate.  See 'godoc runtime MemProfileRate'.  To pro-
	      file all memory allocations, use -test.memprofilerate=1 and set the environment variable GOGC=off to disable the garbage	collector,
	      provided the test can run in the available memory without garbage collection.

       -test.parallel n
	      Allow  parallel  execution  of  test  functions  that call t.Parallel.  The value of this flag is the maximum number of tests to run
	      simultaneously; by default, it is set to the value of GOMAXPROCS.

       -test.short
	      Tell long-running tests to shorten their run time.  It is off by default but set during all.bash so that installing the Go tree  can
	      run a sanity check but not spend time running exhaustive tests.

       -test.timeout t
	      If a test runs longer than t, panic.

       -test.benchtime n
	      Run enough iterations of each benchmark to take n seconds.  The default is 1 second.

       -test.cpu 1,2,4
	      Specify  a  list	of  GOMAXPROCS	values	for which the tests or benchmarks should be executed.  The default is the current value of
	      GOMAXPROCS.

       For convenience, each of these -test.X flags of the test binary is also available as the flag -X in 'go test'  itself.	Flags  not  listed
       here are passed through unaltered.  For instance, the command

	     go test -x -v -cpuprofile=prof.out -dir=testdata -update

       will compile the test binary and then run it as

	     pkg.test -test.v -test.cpuprofile=prof.out -dir=testdata -update

AUTHOR

       This manual page was written by Michael Stapelberg <stapelberg@debian.org>, for the Debian project (and may be used by others).

								    2012-05-13							    GO-TESTFLAG(7)

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