def test_delta_should_be_numeric(self):
self.assertRaises(AssertionError, GaugeDelta, 'string_val', '')
gauge_delta = GaugeDelta('ok', 0.3)
gauge_delta.delta = 2.0
self.assertEqual(gauge_delta.delta, 2.0)
gauge_delta.delta = 27
self.assertEqual(gauge_delta.delta, 27)
def test_delta_should_be_numeric(self):
self.assertRaises(AssertionError, GaugeDelta, 'string_val', '')
gauge_delta = GaugeDelta('ok', 0.3)
gauge_delta.delta = 2.0
self.assertEqual(gauge_delta.delta, 2.0)
gauge_delta.delta = 27
self.assertEqual(gauge_delta.delta, 27)
def test_to_request(self):
gauge_delta = GaugeDelta('ok', 0.2)
self.assertEqual(gauge_delta.to_request(), 'ok:+0.2|g')
gauge_delta2 = GaugeDelta('another', -43)
self.assertEqual(gauge_delta2.to_request(), 'another:-43|g')
gauge_delta3 = GaugeDelta('again', 15, 0.4)
self.assertEqual(gauge_delta3.to_request(), 'again:+15|g|@0.4')
def test_gauge_deltas(self):
shelf = StatsShelf()
self.assertEqual(dict(), shelf.gauges())
shelf.add(GaugeDelta("cpu%", 10))
shelf.add(Gauge("mem%", 10))
shelf.add(GaugeDelta("cpu%", 10))
shelf.add(GaugeDelta("cpu%", -5))
shelf.add(GaugeDelta("mem%", -2))
shelf.add(GaugeDelta("mem%", 4))
expected = {"cpu%": 15, "mem%": 12}
self.assertEqual(expected, shelf.gauges())
def test_parse_gauge_delta_metric_from_request(self):
self.assertEqual(
GaugeDelta("cpu_usage", 6),
parse_metric_from_request("cpu_usage:+6|g")
)
self.assertEqual(
GaugeDelta("mem usage?", -2048, 1),
parse_metric_from_request("mem usage?:-2048|g|@1")
)
self.assertEqual(
GaugeDelta("weird.gauge.delta.with.rate", 23.3, 0.5),
parse_metric_from_request(
"weird.gauge.delta.with.rate:+23.3|g|@0.5")
)
def test_equality_check(self):
metric = GaugeDelta('cpu', 5)
with self.assertRaises(AssertionError):
metric != 'I am not a GaugeDelta'
different_name = GaugeDelta('memory', 5)
self.assertTrue(metric != different_name)
different_value = GaugeDelta('cpu', 25)
self.assertTrue(metric != different_value)
different_rate = GaugeDelta('cpu', 5, 0.5)
self.assertTrue(metric != different_rate)
same = GaugeDelta('cpu', 5)
self.assertTrue(same == metric)
def test_to_request(self):
gauge_delta = GaugeDelta('ok', 0.2)
self.assertEqual(gauge_delta.to_request(), 'ok:+0.2|g')
gauge_delta2 = GaugeDelta('another', -43)
self.assertEqual(gauge_delta2.to_request(), 'another:-43|g')
gauge_delta3 = GaugeDelta('again', 15, 0.4)
self.assertEqual(gauge_delta3.to_request(), 'again:+15|g|@0.4')
def test_constructor(self):
gauge_delta = GaugeDelta('unique', 5)
self.assertEqual(gauge_delta.name, 'unique')
self.assertEqual(gauge_delta.delta, 5)
