Migrate tools/regression/bin/ tests to the new layout.

This change is a proof of concept on how to easily integrate existing
tests from the tools/regression/ hierarchy into the /usr/tests/ test
suite and on how to adapt them to the new layout for src.

To achieve these goals, this change:

- Moves tests from tools/regression/bin/<tool>/ to bin/<tool>/tests/.
- Renames the previous regress.sh files to legacy_test.sh.
- Adds Makefiles to build and install the tests and all their supporting
  data files into /usr/tests/bin/.
- Plugs the legacy_test test programs into the test suite using the new
  TAP backend for Kyua (appearing in 0.8) so that the code of the test
  programs does not have to change.
- Registers the new directories in the BSD.test.dist mtree file.

Reviewed by:	freebsd-testing
Approved by:	rpaulo (mentor)

1 files changed, 44 insertions, 0 deletions

diff --git a/bin/sh/tests/expansion/plus-minus3.0 b/bin/sh/tests/expansion/plus-minus3.0
new file mode 100644
index 0000000..49fcdc2
--- /dev/null
+++ b/bin/sh/tests/expansion/plus-minus3.0
@@ -0,0 +1,44 @@
+# $FreeBSD$
+
+e= q='?' a='*' t=texttext s='ast*que?non' p='/et[c]/' w='a b c' b='{{(#)}}'
+h='##'
+failures=''
+ok=''
+
+testcase() {
+	code="$1"
+	expected="$2"
+	oIFS="$IFS"
+	eval "$code"
+	IFS='|'
+	result="$#|$*"
+	IFS="$oIFS"
+	if [ "x$result" = "x$expected" ]; then
+		ok=x$ok
+	else
+		failures=x$failures
+		echo "For $code, expected $expected actual $result"
+	fi
+}
+
+# We follow original ash behaviour for quoted ${var+-=?} expansions:
+# a double-quote in one switches back to unquoted state.
+# This allows expanding a variable as a single word if it is set
+# and substituting multiple words otherwise.
+# It is also close to the Bourne and Korn shells.
+# POSIX leaves this undefined, and various other shells treat
+# such double-quotes as introducing a second level of quoting
+# which does not do much except quoting close braces.
+
+testcase 'set -- "${p+"/et[c]/"}"'		'1|/etc/'
+testcase 'set -- "${p-"/et[c]/"}"'		'1|/et[c]/'
+testcase 'set -- "${p+"$p"}"'			'1|/etc/'
+testcase 'set -- "${p-"$p"}"'			'1|/et[c]/'
+testcase 'set -- "${p+"""/et[c]/"}"'		'1|/etc/'
+testcase 'set -- "${p-"""/et[c]/"}"'		'1|/et[c]/'
+testcase 'set -- "${p+"""$p"}"'			'1|/etc/'
+testcase 'set -- "${p-"""$p"}"'			'1|/et[c]/'
+testcase 'set -- "${p+"\@"}"'			'1|@'
+testcase 'set -- "${p+"'\''/et[c]/'\''"}"'	'1|/et[c]/'
+
+test "x$failures" = x