Add make check targets

lets add some built in self testing to the make files.  Currently lets
just run irqbalance in foreground/oneshot/debug mode to capture the log
and ensure that nothing crashes

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>

Makefile.am

@@ -24,6 +24,8 @@ AUTOMAKE_OPTIONS = no-dependencies
 ACLOCAL_AMFLAGS = -I m4
 EXTRA_DIST = COPYING autogen.sh misc/irqbalance.service misc/irqbalance.env
 
+SUBDIRS = tests
+
 UI_DIR = ui
 AM_CFLAGS = $(LIBCAP_NG_CFLAGS) $(GLIB2_CFLAGS)
 AM_CPPFLAGS = -I${top_srcdir} -W -Wall -Wshadow -Wformat -Wundef -D_GNU_SOURCE

configure.ac

@@ -81,7 +81,7 @@ AS_IF(
   ]
 )
 
-AC_OUTPUT(Makefile)
+AC_OUTPUT(Makefile tests/Makefile)
 
 AC_MSG_NOTICE()
 AC_MSG_NOTICE([irqbalance Version:     $VERSION])

tests/Makefile.am

@@ -0,0 +1,2 @@
+check_SCRIPTS = runoneshot.sh 
+TESTS = runoneshot.sh

tests/runoneshot.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+exec ../irqbalance --debug --oneshot --foreground
+