# Verify that when we don't update stdout when we don't attempt to write via Stdout()
fprintargs stdout hello stdout from fprintargs
stdout 'hello stdout from fprintargs'
echoandexit 0
stdout 'hello stdout from fprintargs'

# Verify that when we don't update stderr when we don't attempt to write via Stderr()
fprintargs stderr hello stderr from fprintargs
stderr 'hello stderr from fprintargs'
echoandexit 0
stderr 'hello stderr from fprintargs'

# Verify that we do update stdout when we attempt to write via Stdout() or Stderr()
fprintargs stdout hello stdout from fprintargs
stdout 'hello stdout from fprintargs'
! stderr .+
echoandexit 0 'hello stdout from echoandexit'
stdout 'hello stdout from echoandexit'
! stderr .+
fprintargs stdout hello stdout from fprintargs
stdout 'hello stdout from fprintargs'
! stderr .+
echoandexit 0 '' 'hello stderr from echoandexit'
! stdout .+
stderr 'hello stderr from echoandexit'

# Verify that we do update stderr when we attempt to write via Stdout() or Stderr()
fprintargs stderr hello stderr from fprintargs
! stdout .+
stderr 'hello stderr from fprintargs'
echoandexit 0 'hello stdout from echoandexit'
stdout 'hello stdout from echoandexit'
! stderr .+
fprintargs stdout hello stdout from fprintargs
stdout 'hello stdout from fprintargs'
! stderr .+
echoandexit 0 '' 'hello stderr from echoandexit'
! stdout .+
stderr 'hello stderr from echoandexit'