tests/production_tests: in touch test, wait for TOUCH_START first

tests/production_tests/main.py

@@ -63,10 +63,15 @@ def test_touch(v):
     while io.poll([io.TOUCH], r, 10000):
         pass
     # wait for event
+    touch = False
     while True:
-        if io.poll([io.TOUCH], r, 10000) and r[0] == io.TOUCH and r[1][0] == io.TOUCH_END:
-            print('OK %d %d' % (r[1][1], r[1][2]))
-            break
+        if not touch:
+            if io.poll([io.TOUCH], r, 10000) and r[0] == io.TOUCH and r[1][0] == io.TOUCH_START:
+                touch = True
+        else:
+            if io.poll([io.TOUCH], r, 10000) and r[0] == io.TOUCH and r[1][0] == io.TOUCH_END:
+                print('OK %d %d' % (r[1][1], r[1][2]))
+                break
         if utime.ticks_us() > deadline:
             print('ERROR TIMEOUT')
             break