testsuite/pwd/pwd-prints-working-directory - busybox - Git at Google

 # shell's $PWD may leave symlinks unresolved.
 # "pwd" may be a built-in and have the same problem.
 # External pwd _can't_ have that problem (current dir on Unix is physical).
 test "$(`which pwd`)" = "$(busybox pwd)"
	# shell's $PWD may leave symlinks unresolved.
	# "pwd" may be a built-in and have the same problem.
	# External pwd _can't_ have that problem (current dir on Unix is physical).
	test "$(`which pwd`)" = "$(busybox pwd)"