flag provided but not defined: -test
Usage of C:\Users\agent\AppData\Local\Temp\mpv-october-fileops\fileops.test.exe:
  -test.artifacts
    	store test artifacts in test.,outputdir
  -test.bench regexp
    	run only benchmarks matching regexp
  -test.benchmem
    	print memory allocations for benchmarks
  -test.benchtime d
    	run each benchmark for duration d or N times if `d` is of the form Nx (default 1s)
  -test.blockprofile file
    	write a goroutine blocking profile to file
  -test.blockprofilerate rate
    	set blocking profile rate (see runtime.SetBlockProfileRate) (default 1)
  -test.count n
    	run tests and benchmarks n times (default 1)
  -test.coverprofile file
    	write a coverage profile to file
  -test.cpu list
    	comma-separated list of cpu counts to run each test with
  -test.cpuprofile file
    	write a cpu profile to file
  -test.failfast
    	do not start new tests after the first test failure
  -test.fullpath
    	show full file names in error messages
  -test.fuzz regexp
    	run the fuzz test matching regexp
  -test.fuzzcachedir string
    	directory where interesting fuzzing inputs are stored (for use only by cmd/go)
  -test.fuzzminimizetime value
    	time to spend minimizing a value after finding a failing input (default 1m0s)
  -test.fuzztime value
    	time to spend fuzzing; default is to run indefinitely
  -test.fuzzworker
    	coordinate with the parent process to fuzz random values (for use only by cmd/go)
  -test.gocoverdir string
    	write coverage intermediate files to this directory
  -test.list regexp
    	list tests, examples, and benchmarks matching regexp then exit
  -test.memprofile file
    	write an allocation profile to file
  -test.memprofilerate rate
    	set memory allocation profiling rate (see runtime.MemProfileRate)
  -test.mutexprofile string
    	write a mutex contention profile to the named file after execution
  -test.mutexprofilefraction int
    	if >= 0, calls runtime.SetMutexProfileFraction() (default 1)
  -test.outputdir dir
    	write profiles to dir
  -test.paniconexit0
    	panic on call to os.Exit(0)
  -test.parallel n
    	run at most n tests in parallel (default 2)
  -test.run regexp
    	run only tests and examples matching regexp
  -test.short
    	run smaller test suite to save time
  -test.shuffle string
    	randomize the execution order of tests and benchmarks (default "off")
  -test.skip regexp
    	do not list or run tests matching regexp
  -test.testlogfile file
    	write test action log to file (for use only by cmd/go)
  -test.timeout d
    	panic test binary after duration d (default 0, timeout disabled)
  -test.trace file
    	write an execution trace to file
  -test.v
    	verbose: print additional output