Simplify running the FreeBSD test suite

Replace `make regress` (legacy test make target) and `make test` (incomplete
test make target added with the FreeBSD test suite) with make check as it's
consistent with other open source projects.

`make check` defaults to running tests from `.OBJDIR`, but can be overridden
with the `CHECKDIR` variable.

Add `make checkworld` target to simplify running the FreeBSD test suite from
`TESTSBASE` (i.e. the top-level tests directory), similar to buildworld.

Document `make check` and `make checkworld` in build(7).

Other minor changes:

- Rename intermediate file (`Kyuafile.auto`) to `Kyuafile` to simplify
  `make check`.
- Remove terse warnings attached to `beforetest`/`aftertest`.
- Add kyua binary check to check target in suite.test.mk; error out if it's
  not found

The MFC is [partly] contingent on other build related changes being MFCed.

Differential Revision: https://reviews.freebsd.org/D4406
MFC after: 2 months
X-MFC to: stable/10
Relnotes: yes
Reviewed by: bdrewery, Evan Cramer <eccramer@gmail.com>
Sponsored by: EMC / Isilon Storage Division

5 files changed, 45 insertions, 58 deletions

diff --git a/share/mk/bsd.README b/share/mk/bsd.README
index b1a68e8..1ae1510 100644
--- a/share/mk/bsd.README
+++ b/share/mk/bsd.README
@@ -448,6 +448,17 @@ It has seven targets:
 
 	all:
 		build the test programs.
+	check:
+		runs the test programs from CHECKDIR with kyua test.
+
+		The beforecheck and aftercheck targets will be invoked, if
+		defined, to execute commands before and after the realcheck
+		target has been executed, respectively.
+
+		The devel/kyua package must be installed before invoking this
+		target.
+
+		See CHECKDIR for more details.
 	clean:
 		remove the test programs and any object files.
 	cleandir:
@@ -466,12 +477,6 @@ It has seven targets:
 		run lint on the source files.
 	tags:
 		create a tags file for the source files.
-	test:
-		runs the test programs from the object directory; if the
-		Makefile does not itself define the target test, the
-		targets beforetest and aftertest may also be used to
-		cause actions immediately before and after the test
-		target is executed.
 
 It sets/uses the following variables, among many others:
 
@@ -485,6 +490,10 @@ TESTSDIR	Path to the installed tests.  Must be a subdirectory of
 		${TESTSBASE}/${RELDIR:H} , e.g. /usr/tests/bin/ls when
 		included from bin/ls/tests .
 
+CHECKDIR	The directory that 'make check' executes tests from.
+
+		The value of CHECKDIR defaults to .OBJDIR.
+
 KYUAFILE	If 'auto' (the default), generate a Kyuafile out of the
 		test programs defined in the Makefile.  If 'yes', then a
 		manually-crafted Kyuafile must be supplied with the
diff --git a/share/mk/bsd.subdir.mk b/share/mk/bsd.subdir.mk
index dbe74f4..8631e65 100644
--- a/share/mk/bsd.subdir.mk
+++ b/share/mk/bsd.subdir.mk
@@ -43,11 +43,11 @@ SUBDIR_TARGETS+= \
 		checkdpadd clean cleandepend cleandir cleanilinks \
 		cleanobj depend distribute files includes installconfig \
 		installfiles installincludes realinstall lint maninstall \
-		manlint obj objlink regress tags \
+		manlint obj objlink tags \
 
 # Described above.
 STANDALONE_SUBDIR_TARGETS+= \
-		obj checkdpadd clean cleandepend cleandir \
+		obj check checkdpadd clean cleandepend cleandir \
 		cleanilinks cleanobj installconfig \
 
 .include <bsd.init.mk>
diff --git a/share/mk/bsd.sys.mk b/share/mk/bsd.sys.mk
index 7ac7917..2ce5beb 100644
--- a/share/mk/bsd.sys.mk
+++ b/share/mk/bsd.sys.mk
@@ -178,11 +178,11 @@ CXXFLAGS+=	 ${CXXFLAGS.${COMPILER_TYPE}}
 # or expect to ever be up-to-date.
 PHONY_NOTMAIN = afterdepend afterinstall all beforedepend beforeinstall \
 		beforelinking build build-tools buildconfig buildfiles \
-		buildincludes checkdpadd clean cleandepend cleandir cleanobj \
-		configure depend dependall distclean distribute exe \
+		buildincludes check checkdpadd clean cleandepend cleandir \
+		cleanobj configure depend dependall distclean distribute exe \
 		files html includes install installconfig installfiles \
 		installincludes lint obj objlink objs objwarn realall \
-		realdepend realinstall regress subdir-all subdir-depend \
+		realdepend realinstall subdir-all subdir-depend \
 		subdir-install tags whereobj
 
 # we don't want ${PROG} to be PHONY
diff --git a/share/mk/bsd.test.mk b/share/mk/bsd.test.mk
index 9c59619..d5936b9 100644
--- a/share/mk/bsd.test.mk
+++ b/share/mk/bsd.test.mk
@@ -60,11 +60,15 @@ _TESTS=
 .include <plain.test.mk>
 .include <tap.test.mk>
 
+# kyua automatically descends directories; only run make check on the
+# top-level directory
+.if !make(check)
 .for ts in ${TESTS_SUBDIRS}
 .if empty(SUBDIR:M${ts})
 SUBDIR+= ${ts}
 .endif
 .endfor
+.endif
 
 # it is rare for test cases to have man pages
 .if !defined(MAN)
@@ -79,19 +83,14 @@ PROGS_TARGETS+= install
 .include <suite.test.mk>
 .endif
 
-.if !target(realtest)
-realtest: .PHONY
+.if !target(realcheck)
+realcheck: .PHONY
 	@echo "$@ not defined; skipping"
 .endif
 
-test: .PHONY
-.ORDER: beforetest realtest
-test: beforetest realtest
-
-.if target(aftertest)
-.ORDER: realtest aftertest
-test: aftertest
-.endif
+beforecheck realcheck aftercheck check: .PHONY
+.ORDER: beforecheck realcheck aftercheck
+check: beforecheck realcheck aftercheck
 
 .ifdef PROG
 # we came here via bsd.progs.mk below
diff --git a/share/mk/suite.test.mk b/share/mk/suite.test.mk
index 2b87d7f..646d2eb 100644
--- a/share/mk/suite.test.mk
+++ b/share/mk/suite.test.mk
@@ -50,15 +50,12 @@ FILES+=	Kyuafile
 FILESDIR_Kyuafile= ${TESTSDIR}
 .endif
 
-.if ${KYUAFILE:tl} == "auto"
-CLEANFILES+= Kyuafile Kyuafile.tmp
-.endif
-
 .for _T in ${_TESTS}
 _TEST_METADATA.${_T}= ${TEST_METADATA} ${TEST_METADATA.${_T}}
 .endfor
 
 .if ${KYUAFILE:tl} == "auto"
+CLEANFILES+= Kyuafile Kyuafile.tmp
 Kyuafile: Makefile
 	@{ \
 	    echo '-- Automatically generated by bsd.test.mk.'; \
@@ -78,9 +75,11 @@ Kyuafile: Makefile
 	@mv ${.TARGET}.tmp ${.TARGET}
 .endif
 
+CHECKDIR?=	${DESTDIR}${TESTSDIR}
+
 KYUA= ${LOCALBASE}/bin/kyua
-.if exists(${KYUA})
-# Definition of the "make test" target and supporting variables.
+
+# Definition of the "make check" target and supporting variables.
 #
 # This target, by necessity, can only work for native builds (i.e. a FreeBSD
 # host building a release for the same system).  The target runs Kyua, which is
@@ -89,35 +88,15 @@ KYUA= ${LOCALBASE}/bin/kyua
 # Due to the dependencies of the binaries built by the source tree and how they
 # are used by tests, it is highly possible for a execution of "make test" to
 # report bogus results unless the new binaries are put in place.
-realtest: .PHONY
-	@echo "*** WARNING: make test is experimental"
-	@echo "***"
-	@echo "*** Using this test does not preclude you from running the tests"
-	@echo "*** installed in ${TESTSBASE}.  This test run may raise false"
-	@echo "*** positives and/or false negatives."
-	@echo
-	@${KYUA} test -k ${DESTDIR}${TESTSDIR}/Kyuafile; \
-	result=0; \
-	echo; \
-	echo "*** Once again, note that "make test" is unsupported."; \
-	test $${result} -eq 0
-.endif
 
-beforetest: .PHONY
-.if defined(TESTSDIR)
-.if ${TESTSDIR} == ${TESTSBASE}
-# Forbid running from ${TESTSBASE}.  It can cause false positives/negatives and
-# it does not cover all the tests (e.g. it misses testing software in external).
-	@echo "*** Sorry, you cannot use make test from src/tests.  Install the"
-	@echo "*** tests into their final location and run them from ${TESTSBASE}"
-	@false
-.else
-	@echo "*** Using this test does not preclude you from running the tests"
-	@echo "*** installed in ${TESTSBASE}.  This test run may raise false"
-	@echo "*** positives and/or false negatives."
-.endif
-.else
-	@echo "*** No TESTSDIR defined; nothing to do."
-	@false
-.endif
-	@echo
+realcheck: .PHONY
+	@if [ ! -x ${KYUA} ]; then \
+		echo; \
+		echo "kyua binary not installed at expected location (${.TARGET})"; \
+		echo; \
+		echo "Please install via pkg install, or specify the path to the kyua"; \
+		echo "package via the \$${LOCALBASE} variable, e.g. "; \
+		echo "LOCALBASE=\"${LOCALBASE}\""; \
+		false; \
+	fi
+	@${KYUA} test -k ${CHECKDIR}/Kyuafile