def test_sample_rate_should_be_numeric(self):
self.assertRaises(
AssertionError, Gauge, 'string_sample_rate', 1.0, 's')
gauge = Gauge('ok', 4)
gauge.sample_rate = 0.3
self.assertEqual(gauge.sample_rate, 0.3)
gauge.sample_rate = 2
self.assertEqual(gauge.sample_rate, 2)
def test_sample_rate_should_be_numeric(self):
self.assertRaises(
AssertionError, Gauge, 'string_sample_rate', 1.0, 's')
gauge = Gauge('ok', 4)
gauge.sample_rate = 0.3
self.assertEqual(gauge.sample_rate, 0.3)
gauge.sample_rate = 2
self.assertEqual(gauge.sample_rate, 2)
def test_value_should_be_numeric(self):
self.assertRaises(AssertionError, Gauge, 'string_val', '')
gauge = Gauge('ok', 0.3)
def set_value_as_string():
gauge.value = 'not float'
self.assertRaises(AssertionError, set_value_as_string)
gauge.value = 2.0
self.assertEqual(gauge.value, 2.0)
gauge.value = 63
self.assertEqual(gauge.value, 63)
def test_value_should_be_numeric(self):
self.assertRaises(AssertionError, Gauge, 'string_val', '')
gauge = Gauge('ok', 0.3)
def set_value_as_string():
gauge.value = 'not float'
self.assertRaises(AssertionError, set_value_as_string)
gauge.value = 2.0
self.assertEqual(gauge.value, 2.0)
gauge.value = 63
self.assertEqual(gauge.value, 63)
def test_to_request(self):
gauge = Gauge('ok', 0.2)
self.assertEqual(gauge.to_request(), 'ok:0.2|g')
gauge2 = Gauge('another', 237)
self.assertEqual(gauge2.to_request(), 'another:237|g')
gauge3 = Gauge('again', 11.8, 0.4)
self.assertEqual(gauge3.to_request(), 'again:11.8|g|@0.4')
def test_parse_gauge_metric_from_request(self):
self.assertEqual(
Gauge("cpu_usage", 45.3),
parse_metric_from_request("cpu_usage:45.3|g")
)
self.assertEqual(
Gauge("mem usage?", 10240, 1),
parse_metric_from_request("mem usage?:10240|g|@1")
)
self.assertEqual(
Gauge("weird.gauge.with.rate", 23.3, 0.5),
parse_metric_from_request("weird.gauge.with.rate:23.3|g|@0.5")
)
def test_gauges(self):
shelf = StatsShelf()
self.assertEqual(dict(), shelf.gauges())
shelf.add(Gauge("cpu%", 50))
shelf.add(Gauge("cpu%", 51))
shelf.add(Gauge("mem%", 20))
shelf.add(Gauge("mem%", 23))
shelf.add(Gauge("cpu%", 58))
expected = {"cpu%": 58, "mem%": 23}
self.assertEqual(expected, shelf.gauges())
gauges = shelf.gauges()
gauges["gauges should"] = "not change"
self.assertEqual(expected, shelf.gauges())
def test_equality_check(self):
gauge = Gauge('cpu', 10)
with self.assertRaises(AssertionError):
gauge != 'I am not a Gauge'
different_name = Gauge('memory', 10)
self.assertTrue(gauge != different_name)
different_value = Gauge('cpu', 25)
self.assertTrue(gauge != different_value)
different_rate = Gauge('cpu', 10, 0.5)
self.assertTrue(gauge != different_rate)
same = Gauge('cpu', 10)
self.assertTrue(same == gauge)
def test_value_should_not_be_negative(self):
self.assertRaises(AssertionError, Gauge, 'test', -2)
gauge = Gauge('ok', 0)
def set_negative_value():
gauge.value = -4.5
self.assertRaises(AssertionError, set_negative_value)
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_clear_all_metrics(self):
shelf = StatsShelf()
shelf.add(Set("users", "me"))
shelf.add(Counter("mymetric", 3))
shelf.add(Timer("query", 4.12))
shelf.add(Gauge("cpu%", 38))
shelf.clear()
self.assertEqual(dict(), shelf.counters())
self.assertEqual(dict(), shelf.sets())
self.assertEqual(dict(), shelf.timers_data())
self.assertEqual(dict(), shelf.gauges())
def test_to_request(self):
gauge = Gauge('ok', 0.2)
self.assertEqual(gauge.to_request(), 'ok:0.2|g')
gauge2 = Gauge('another', 237)
self.assertEqual(gauge2.to_request(), 'another:237|g')
gauge3 = Gauge('again', 11.8, 0.4)
self.assertEqual(gauge3.to_request(), 'again:11.8|g|@0.4')
def test_default_sample_rate_is_one(self):
gauge = Gauge('test', 3)
self.assertEqual(gauge.sample_rate, 1)
def test_constructor(self):
gauge = Gauge('test', 5, 0.2)
self.assertEqual(gauge.name, 'test')
self.assertEqual(gauge.value, 5)
self.assertEqual(gauge.sample_rate, 0.2)