def test_shutsdown_cleanly(self):
self.tdza = TimedDripZAxis(1, 0.0)
self.tdza.start()
time.sleep(0.1)
self.tdza.close()
time.sleep(0.1)
self.assertFalse(self.tdza.is_alive())
def test_current_z_location_mm_returns_the_correct_number(self):
self.tdza = TimedDripZAxis(1000.0, 0.0, drips_per_second=4000)
expected_mm = 2.0
start = time.time()
self.tdza.start()
while time.time() - start < 0.5:
time.sleep(0.01)
result = self.tdza.current_z_location_mm()
self.tdza.close()
self.assertAlmostEquals(expected_mm, result, places=0)
def test_move_to_does_nothing(self):
expected_drips_per_second = 12
self.tdza = TimedDripZAxis(
1,
0.0,
drips_per_second=expected_drips_per_second,
calls_back_per_second=100
)
self.tdza.start()
self.tdza.move_to(7.0)
def test_can_set_call_back(self):
self.tdza = TimedDripZAxis(
1,
0.0,
drips_per_second=10,
calls_back_per_second=100
)
self.tdza.set_call_back(self.call_back)
self.tdza.start()
time.sleep(0.1)
self.tdza.close()
self.assertTrue(self.calls > 0)
def test_set_drips_per_second(self):
expected_drips_per_second = 12
self.tdza = TimedDripZAxis(
1,
0.0,
drips_per_second=expected_drips_per_second,
calls_back_per_second=100
)
self.tdza.start()
actual = self.tdza.get_drips_per_second()
self.tdza.close()
self.assertEquals(expected_drips_per_second, actual)
def test_cset_drips_per_mm_returns_the_new_correct_height(self):
original_drips_per_mm = 1
new_drips_per_mm = 0.1
self.tdza = TimedDripZAxis(original_drips_per_mm, 0.0, drips_per_second=100)
start = time.time()
self.tdza.start()
while time.time() - start < 0.1:
time.sleep(0.01)
self.tdza.close()
time.sleep(0.01)
original_result = self.tdza.current_z_location_mm()
self.tdza.set_drips_per_mm(new_drips_per_mm)
new_result = self.tdza.current_z_location_mm()
self.assertAlmostEquals(original_result * 10, new_result, places=0)
def test_current_z_location_mm_returns_the_correct_number_given_starting_height(self):
starting_height = 7.7
expected_height = starting_height + 2
self.tdza = TimedDripZAxis(5, starting_height, drips_per_second=100)
self.assertEquals(starting_height, self.tdza.current_z_location_mm())
start = time.time()
self.tdza.start()
while time.time() - start < 0.1:
time.sleep(0.01)
result = self.tdza.current_z_location_mm()
self.tdza.close()
self.assertAlmostEquals(expected_height, result, places=0)
def test_can_change_drips_per_second_with_out_altering_existing_data(self):
self.tdza = TimedDripZAxis(
1,
0.0,
drips_per_second=100,
calls_back_per_second=100
)
self.tdza.set_call_back(self.call_back)
self.tdza.start()
time.sleep(0.5)
before_drips = self.drips
before_cb_height = self.height
before_height = self.tdza.current_z_location_mm()
self.tdza.set_drips_per_second(10)
time.sleep(0.5)
self.assertTrue(before_height <= self.tdza.current_z_location_mm(), "%s !<= %s" % (before_height, self.tdza.current_z_location_mm()))
self.assertTrue(before_cb_height <= self.height)
self.assertTrue(before_drips <= self.drips)
self.tdza.close()
self.assertTrue(self.calls > 0)
def _get_zaxis(self, dry_run):
if dry_run:
return None
elif self._configuration.dripper.dripper_type == 'photo':
logger.info("Photo Zaxis")
return PhotoZAxis(self._start_height,
self._configuration.dripper.photo_zaxis_delay)
elif self._configuration.dripper.dripper_type == 'emulated':
logger.info("Emulated Zaxis")
return TimedDripZAxis(self._configuration.dripper.drips_per_mm,
self._start_height,
drips_per_second=self._configuration.dripper.
emulated_drips_per_second)
elif self._configuration.dripper.dripper_type == 'microcontroller':
logger.info("Micro Controller Zaxis")
return SerialDripZAxis(
self._get_communicator(dry_run),
self._configuration.dripper.drips_per_mm,
self._start_height,
)
class TimedDripZaxisTests(unittest.TestCase):
def setUp(self):
self.tdza = None
self.calls = 0
self.drips = 0
self.height = 0
self.drips_per_second = 0
def tearDown(self):
if self.tdza:
self.tdza.close()
def call_back(self, drips, height, drips_per_second, drip_history):
self.calls += 1
self.drips = drips
self.height = height
self.drips_per_second = drips_per_second
self.drip_history = drip_history
def test_shutsdown_cleanly(self):
self.tdza = TimedDripZAxis(1, 0.0)
self.tdza.start()
time.sleep(0.1)
self.tdza.close()
time.sleep(0.1)
self.assertFalse(self.tdza.is_alive())
def test_current_z_location_mm_returns_the_correct_number(self):
self.tdza = TimedDripZAxis(1000.0, 0.0, drips_per_second=4000)
expected_mm = 2.0
start = time.time()
self.tdza.start()
while time.time() - start < 0.5:
time.sleep(0.01)
result = self.tdza.current_z_location_mm()
self.tdza.close()
self.assertAlmostEquals(expected_mm, result, places=0)
def test_current_z_location_mm_returns_the_correct_number_given_starting_height(self):
starting_height = 7.7
expected_height = starting_height + 2
self.tdza = TimedDripZAxis(5, starting_height, drips_per_second=100)
self.assertEquals(starting_height, self.tdza.current_z_location_mm())
start = time.time()
self.tdza.start()
while time.time() - start < 0.1:
time.sleep(0.01)
result = self.tdza.current_z_location_mm()
self.tdza.close()
self.assertAlmostEquals(expected_height, result, places=0)
def test_cset_drips_per_mm_returns_the_new_correct_height(self):
original_drips_per_mm = 1
new_drips_per_mm = 0.1
self.tdza = TimedDripZAxis(original_drips_per_mm, 0.0, drips_per_second=100)
start = time.time()
self.tdza.start()
while time.time() - start < 0.1:
time.sleep(0.01)
self.tdza.close()
time.sleep(0.01)
original_result = self.tdza.current_z_location_mm()
self.tdza.set_drips_per_mm(new_drips_per_mm)
new_result = self.tdza.current_z_location_mm()
self.assertAlmostEquals(original_result * 10, new_result, places=0)
def test_can_set_call_back(self):
self.tdza = TimedDripZAxis(
1,
0.0,
drips_per_second=10,
calls_back_per_second=100
)
self.tdza.set_call_back(self.call_back)
self.tdza.start()
time.sleep(0.1)
self.tdza.close()
self.assertTrue(self.calls > 0)
def test_can_change_drips_per_second_with_out_altering_existing_data(self):
self.tdza = TimedDripZAxis(
1,
0.0,
drips_per_second=100,
calls_back_per_second=100
)
self.tdza.set_call_back(self.call_back)
self.tdza.start()
time.sleep(0.5)
before_drips = self.drips
before_cb_height = self.height
before_height = self.tdza.current_z_location_mm()
self.tdza.set_drips_per_second(10)
time.sleep(0.5)
self.assertTrue(before_height <= self.tdza.current_z_location_mm(), "%s !<= %s" % (before_height, self.tdza.current_z_location_mm()))
self.assertTrue(before_cb_height <= self.height)
self.assertTrue(before_drips <= self.drips)
self.tdza.close()
self.assertTrue(self.calls > 0)
def test_set_drips_per_second(self):
expected_drips_per_second = 12
self.tdza = TimedDripZAxis(
1,
0.0,
drips_per_second=expected_drips_per_second,
calls_back_per_second=100
)
self.tdza.start()
actual = self.tdza.get_drips_per_second()
self.tdza.close()
self.assertEquals(expected_drips_per_second, actual)
def test_move_to_does_nothing(self):
expected_drips_per_second = 12
self.tdza = TimedDripZAxis(
1,
0.0,
drips_per_second=expected_drips_per_second,
calls_back_per_second=100
)
self.tdza.start()
self.tdza.move_to(7.0)