test: add new helper function for absolute events

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

test/test-common.c

@@ -56,3 +56,41 @@ int test_create_device(struct uinput_device **uidev_return,
 	return rc == 0 ? rc : -errno;
 }
 
+int test_create_abs_device(struct uinput_device **uidev_return,
+			   struct libevdev **dev_return,
+			   int nabs,
+			   struct input_absinfo *abs,
+			   ...)
+{
+	int rc, fd;
+	struct uinput_device *uidev;
+	struct libevdev *dev;
+	va_list args;
+
+	uidev = uinput_device_new("test device");
+	ck_assert(uidev != NULL);
+
+	va_start(args, abs);
+	rc = uinput_device_set_event_bits_v(uidev, args);
+	va_end(args);
+
+	while (--nabs >= 0) {
+		rc = uinput_device_set_abs_bit(uidev, abs[nabs].value, &abs[nabs]);
+		ck_assert_msg(rc == 0, "for abs field %d\n", nabs);
+	}
+
+	rc = uinput_device_create(uidev);
+	ck_assert_msg(rc == 0, "Failed to create uinput device: %s", strerror(-rc));
+
+	fd = uinput_device_get_fd(uidev);
+
+	rc = libevdev_new_from_fd(fd, &dev);
+	ck_assert_msg(rc == 0, "Failed to init device device: %s", strerror(-rc));
+	rc = fcntl(fd, F_SETFL, O_NONBLOCK);
+	ck_assert_msg(rc == 0, "fcntl failed: %s", strerror(errno));
+
+	*uidev_return = uidev;
+	*dev_return = dev;
+
+	return rc == 0 ? rc : -errno;
+}

test/test-common.h

@@ -34,5 +34,10 @@
 int test_create_device(struct uinput_device **uidev,
 		       struct libevdev **dev,
 		       ...);
+int test_create_abs_device(struct uinput_device **uidev,
+		           struct libevdev **dev,
+			   int nabs,
+			   struct input_absinfo *abs,
+			   ...);
 
 #endif /* _TEST_COMMON_H_ */