[src/trunk]: src/usr.bin/make/unit-tests make(1): add test for ${VAR::::}

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/048a6b4e5198
branches:  trunk
changeset: 974493:048a6b4e5198
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sat Aug 01 15:16:15 2020 +0000

description:
make(1): add test for ${VAR::::}

It's a bit unrealistic, but at least there are good diagnostics.

diffstat:

 usr.bin/make/unit-tests/varmod-edge.exp |  3 +++
 usr.bin/make/unit-tests/varmod-edge.mk  |  7 ++++++-
 2 files changed, 9 insertions(+), 1 deletions(-)

diffs (38 lines):

diff -r 1e6aab3a7e70 -r 048a6b4e5198 usr.bin/make/unit-tests/varmod-edge.exp
--- a/usr.bin/make/unit-tests/varmod-edge.exp   Sat Aug 01 15:13:45 2020 +0000
+++ b/usr.bin/make/unit-tests/varmod-edge.exp   Sat Aug 01 15:16:15 2020 +0000
@@ -1,5 +1,7 @@
 make: Unclosed variable specification (expecting '}') for "" (value "*)") modifier U
 make: Unclosed substitution for INP.eq-esc (= missing)
+make: Unknown modifier ':'
+make: Unknown modifier ':'
 ok M-paren
 ok M-mixed
 ok M-unescape
@@ -15,4 +17,5 @@
 ok eq-bs
 ok eq-esc
 ok colon
+ok colons
 exit status 0
diff -r 1e6aab3a7e70 -r 048a6b4e5198 usr.bin/make/unit-tests/varmod-edge.mk
--- a/usr.bin/make/unit-tests/varmod-edge.mk    Sat Aug 01 15:13:45 2020 +0000
+++ b/usr.bin/make/unit-tests/varmod-edge.mk    Sat Aug 01 15:16:15 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: varmod-edge.mk,v 1.9 2020/08/01 15:13:45 rillig Exp $
+# $NetBSD: varmod-edge.mk,v 1.10 2020/08/01 15:16:15 rillig Exp $
 #
 # Tests for edge cases in variable modifiers.
 #
@@ -156,6 +156,11 @@
 MOD.colon=     ${INP.colon:}
 EXP.colon=     value
 
+TESTS+=                colons
+INP.colons=    value
+MOD.colons=    ${INP.colons::::}
+EXP.colons=    # empty
+
 all:
 .for test in ${TESTS}
 .  if ${MOD.${test}} == ${EXP.${test}}