xref: /src/usr.bin/make/unit-tests/varmod-unique.mk

# $NetBSD: varmod-unique.mk,v 1.3 2020/08/31 17:32:13 rillig Exp $
#
# Tests for the :u variable modifier, which discards adjacent duplicate
# words.

.if ${:U1 2 1:u} != "1 2 1"
.  error The :u modifier only merges _adjacent_ duplicate words.
.endif

.if ${:U1 2 2 3:u} != "1 2 3"
.  warning The :u modifier must merge adjacent duplicate words.
.  if ${:U1 2 2 3:u} == "1 2 3 3" # not the desired result
.    warning FIXME
.  endif
.endif

.if ${:U:u} != ""
.  error The :u modifier must do nothing with an empty word list.
.endif

.if ${:U1:u} != "1"
.  error The :u modifier must do nothing with a single-element word list.
.endif

.if ${:U1 1 1 1 1 1 1 1} != "1"
.  warning The :u modifier must merge _all_ adjacent duplicate words.
.  if ${:U1 1 1 1 1 1 1 1} == "1 1 1 1 1 1 1 1"
.    warning FIXME
.  endif
.endif

.if ${:U   1    2    1 1  } != "1 2 1"
.  warning The :u modifier must normalize whitespace between the words.
.  if ${:U   1    2    1 1  } != "1 2 1 1"
.    warning FIXME
.  endif
.endif

all:
	@:;