Connect the tests provided with the new bc and dc

The tests compare the command output (including of error cases) with the
expected output and exit code.

Not all tests are executed, since some expect to have a known good bc and
dc binary installed and compare results of large amounts of generated data
being processed by both versions to test for regressions.

etc/mtree/BSD.tests.dist

@@ -1002,6 +1002,8 @@
         ..
         getconf
         ..
+        gh-bc
+        ..
         grep
         ..
         gzip

usr.bin/gh-bc/Makefile

@@ -59,9 +59,8 @@ MAN_SRC_DC=	dc/A.1
 CFLAGS+=	-flto
 .endif
 
-.if ${MK_TESTS} != "no"
-#SUBDIR+=	tests
-.endif
+HAS_TESTS=
+SUBDIR.${MK_TESTS}+= tests
 
 .for catalog in ${CATALOGS}
 NLS+=           ${catalog:C/.*://}

usr.bin/gh-bc/tests/Makefile

@@ -0,0 +1,67 @@
+# $FreeBSD$
+
+.include <bsd.own.mk>
+
+PACKAGE=		tests
+
+TEST_DIR=		${SRCTOP}/contrib/bc
+
+TESTSDIR=		${TESTSBASE}/usr.bin/gh-bc
+
+.PATH:			${SRCTOP}/tests
+
+FILESGROUPS+=		FILESf
+FILESfPACKAGE=		${PACKAGE}
+FILESfDIR=		${TESTSDIR}
+FILESf=			${TEST_DIR}/functions.sh
+FILESfMODE=		0755
+
+FILESGROUPS+=		FILEStests
+FILEStestsPACKAGE=	${PACKAGE}
+FILEStestsDIR=		${TESTSDIR}/tests
+FILEStests!=		echo ${TEST_DIR}/tests/*.py ${TEST_DIR}/tests/*.sh ${TEST_DIR}/tests/*.txt
+FILEStestsMODE=		0755
+
+FILESGROUPS+=		FILESbc
+FILESbcPACKAGE=		${PACKAGE}
+FILESbcDIR=		${TESTSDIR}/tests/bc
+FILESbc!=		echo ${TEST_DIR}/tests/bc/*.*
+
+FILESGROUPS+=		FILESbc_errors
+FILESbc_errorsPACKAGE=	${PACKAGE}
+FILESbc_errorsDIR=	${TESTSDIR}/tests/bc/errors
+FILESbc_errors!=	echo ${TEST_DIR}/tests/bc/errors/*.*
+
+FILESGROUPS+=		FILESbc_scripts
+FILESbc_scriptsPACKAGE=	${PACKAGE}
+FILESbc_scriptsDIR=	${TESTSDIR}/tests/bc/scripts
+FILESbc_scripts!=	echo ${TEST_DIR}/tests/bc/scripts/*.*
+FILESbc_scriptsMODE=	0755
+
+FILESGROUPS+=		FILESdc
+FILESdcPACKAGE=		${PACKAGE}
+FILESdcDIR=		${TESTSDIR}/tests/dc
+FILESdc!=		echo ${TEST_DIR}/tests/dc/*.*
+
+FILESGROUPS+=		FILESdc_errors
+FILESdc_errorsPACKAGE=	${PACKAGE}
+FILESdc_errorsDIR=	${TESTSDIR}/tests/dc/errors
+FILESdc_errors!=	echo ${TEST_DIR}/tests/dc/errors/*.*
+
+FILESGROUPS+=		FILESdc_scripts
+FILESdc_scriptsPACKAGE=	${PACKAGE}
+FILESdc_scriptsDIR=	${TESTSDIR}/tests/dc/scripts
+FILESdc_scripts!=	echo ${TEST_DIR}/tests/dc/scripts/*.*
+FILESdc_scriptsMODE=	0755
+
+PLAIN_TESTS_SH=		bc_tests dc_tests
+
+bc_tests.sh:
+	echo "#!/bin/sh" > ${.TARGET}
+	echo "env LANG=C ${TESTSDIR}/tests/all.sh bc 1 1 0 0 bc" >> ${.TARGET}
+
+dc_tests.sh:
+	echo "#!/bin/sh" > ${.TARGET}
+	echo "env LANG=C ${TESTSDIR}/tests/all.sh dc 1 1 0 0 dc" >> ${.TARGET}
+
+.include <bsd.test.mk>