test: move tapping tests into a separate binary

The previous set hit _some_ sort of limit, but no idea what or why. When
adding one more test, the touchpad test case would reliably fail with a udev
timeout in litest_wait_for_udev(). This only happened in the valgrind case,
the normal run succeeded. Reproduced on three different installations (2 vms
on two different hosts).

Move the tapping tests into a separate binary, this unwedges whatever was
unhappy and sunshine, lollipops and rainbows are distributed generously.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>

test/Makefile.am

@@ -48,6 +48,7 @@ endif
 
 run_tests = \
 	test-touchpad \
+	test-touchpad-tap \
 	test-device \
 	test-pointer \
 	test-touch \
@@ -95,6 +96,10 @@ test_touchpad_SOURCES = touchpad.c
 test_touchpad_LDADD = $(TEST_LIBS)
 test_touchpad_LDFLAGS = -no-install
 
+test_touchpad_tap_SOURCES = touchpad-tap.c
+test_touchpad_tap_LDADD = $(TEST_LIBS)
+test_touchpad_tap_LDFLAGS = -no-install
+
 test_trackpoint_SOURCES = trackpoint.c
 test_trackpoint_LDADD = $(TEST_LIBS)
 test_trackpoint_LDFLAGS = -no-install