vendor/NetBSD/bmake/20201117vendor/NetBSD/bmake

1 files changed, 32 insertions, 1 deletions

diff --git a/unit-tests/cond-token-string.mk b/unit-tests/cond-token-string.mk
index 1a8019754824b..7e110806d4085 100644
--- a/unit-tests/cond-token-string.mk
+++ b/unit-tests/cond-token-string.mk
@@ -1,8 +1,39 @@
-# $NetBSD: cond-token-string.mk,v 1.2 2020/08/16 14:25:16 rillig Exp $
+# $NetBSD: cond-token-string.mk,v 1.3 2020/11/10 22:23:37 rillig Exp $
 #
 # Tests for quoted and unquoted string literals in .if conditions.
 
 # TODO: Implementation
 
+# Cover the code in CondParser_String that frees the memory after parsing
+# a variable expression based on an undefined variable.
+.if "" != "${:Uvalue:Z}"
+.  error
+.else
+.  error
+.endif
+
+.if x${:Uvalue}
+.  error
+.else
+.  info xvalue is not defined.
+.endif
+
+# The 'x' produces a "Malformed conditional" since the left-hand side of a
+# comparison in an .if directive must be either a variable expression, a
+# quoted string literal or a number that starts with a digit.
+.if x${:Uvalue} == ""
+.  error
+.else
+.  error
+.endif
+
+# In plain words, a '\' can be used to escape any character, just as in
+# double-quoted string literals.  See CondParser_String.
+.if \x${:Uvalue} == "xvalue"
+.  info Expected.
+.else
+.  error
+.endif
+
 all:
 	@:;