1 files changed, 162 insertions, 0 deletions
diff --git a/bin/ksh/tests/ifs.t b/bin/ksh/tests/ifs.t
new file mode 100644
index 00000000000..a927aa301fc
--- /dev/null
+++ b/bin/ksh/tests/ifs.t
@@ -0,0 +1,162 @@
+name: IFS-space-1
+description:
+	Simple test, default IFS
+stdin:
+	showargs() { for i; do echo -n " <$i>"; done; echo; }
+	set -- A B C
+	showargs 1 $*
+	showargs 2 "$*"
+	showargs 3 $@
+	showargs 4 "$@"
+expected-stdout:
+	 <1> <A> <B> <C>
+	 <2> <A B C>
+	 <3> <A> <B> <C>
+	 <4> <A> <B> <C>
+---
+
+name: IFS-colon-1
+description:
+	Simple test, IFS=:
+stdin:
+	showargs() { for i; do echo -n " <$i>"; done; echo; }
+	IFS=:
+	set -- A B C
+	showargs 1 $*
+	showargs 2 "$*"
+	showargs 3 $@
+	showargs 4 "$@"
+expected-stdout:
+	 <1> <A> <B> <C>
+	 <2> <A:B:C>
+	 <3> <A> <B> <C>
+	 <4> <A> <B> <C>
+---
+
+name: IFS-null-1
+description:
+	Simple test, IFS=""
+stdin:
+	showargs() { for i; do echo -n " <$i>"; done; echo; }
+	IFS=""
+	set -- A B C
+	showargs 1 $*
+	showargs 2 "$*"
+	showargs 3 $@
+	showargs 4 "$@"
+expected-stdout:
+	 <1> <A B C>
+	 <2> <ABC>
+	 <3> <A B C>
+	 <4> <A B C>
+---
+
+name: IFS-space-colon-1
+description:
+	Simple test, IFS=<white-space>:
+stdin:
+	showargs() { for i; do echo -n " <$i>"; done; echo; }
+	IFS="IFS:"
+	set --
+	showargs 1 $*
+	showargs 2 "$*"
+	showargs 3 $@
+	showargs 4 "$@"
+	showargs 5 : "$@"
+expected-stdout:
+	 <1>
+	 <2> <>
+	 <3>
+	 <4>
+	 <5> <:>
+---
+
+name: IFS-space-colon-2
+description:
+	Simple test, IFS=<white-space>:
+	At&t ksh fails this, POSIX says the test is correct.
+stdin:
+	showargs() { for i; do echo -n " <$i>"; done; echo; }
+	IFS="IFS:"
+	set --
+	showargs :"$@"
+expected-stdout:
+	 <:>
+---
+
+name: IFS-space-colon-3
+description:
+	Simple test, IFS=<white-space>:
+	pdksh fails both of these tests
+stdin:
+	showargs() { for i; do echo -n " <$i>"; done; echo; }
+	IFS="IFS:"
+	x=
+	set --
+	showargs "$x$@"
+	showargs "$@$x"
+expected-fail: yes
+expected-stdout:
+	 <>
+	 <>
+---
+
+name: IFS-space-colon-4
+description:
+	Simple test, IFS=<white-space>:
+stdin:
+	showargs() { for i; do echo -n " <$i>"; done; echo; }
+	IFS="IFS:"
+	set --
+	showargs "$@$@"
+expected-stdout:
+	
+---
+
+name: IFS-space-colon-5
+description:
+	Simple test, IFS=<white-space>:
+	Don't know what POSIX thinks of this.  at&t ksh does not do this.
+stdin:
+	showargs() { for i; do echo -n " <$i>"; done; echo; }
+	IFS="IFS:"
+	set --
+	showargs "${@:-}"
+expected-stdout:
+	 <>
+---
+
+name: IFS-subst-1
+description:
+	Simple test, IFS=<white-space>:
+stdin:
+	showargs() { for i; do echo -n " <$i>"; done; echo; }
+	IFS="$IFS:"
+	x=":b: :"
+	echo -n '1:'; for i in $x ; do echo -n " [$i]" ; done ; echo
+	echo -n '2:'; for i in :b:: ; do echo -n " [$i]" ; done ; echo
+	showargs 3 $x
+	showargs 4 :b::
+	x="a:b:"
+	echo -n '5:'; for i in $x ; do echo -n " [$i]" ; done ; echo
+	showargs 6 $x
+	x="a::c"
+	echo -n '7:'; for i in $x ; do echo -n " [$i]" ; done ; echo
+	showargs 8 $x
+	echo -n '9:'; for i in ${FOO-`echo -n h:i`th:ere} ; do echo -n " [$i]" ; done ; echo
+	showargs 10 ${FOO-`echo -n h:i`th:ere}
+	showargs 11 "${FOO-`echo -n h:i`th:ere}"
+expected-stdout:
+	1: [] [b] [] []
+	2: [:b::]
+	 <3> <> <b> <> <>
+	 <4> <:b::>
+	5: [a] [b] []
+	 <6> <a> <b> <>
+	7: [a] [] [c]
+	 <8> <a> <> <c>
+	9: [h] [ith] [ere]
+	 <10> <h> <ith> <ere>
+	 <11> <h:ith:ere>
+---
+