blob: 26b3456dfa3ae52fb3fdda5bb2978352e57422c8 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
package kamon.metric.instrument
import kamon.LogInterceptor
import kamon.metric.Entity
import kamon.testkit.DefaultInstrumentFactory
import org.scalatest.{Matchers, WordSpec}
import uk.org.lidalia.slf4jext.Level
import uk.org.lidalia.slf4jtest.TestLoggerFactory
class CounterSpec extends WordSpec with Matchers with LogInterceptor with DefaultInstrumentFactory {
implicit val testLogger = TestLoggerFactory.getTestLogger(classOf[LongAdderCounter])
"a Counter" should {
"allow unit and bundled increments" in {
val counter = buildCounter("unit-increments")
counter.increment()
counter.increment()
counter.increment(40)
counter.snapshot().value shouldBe(42)
}
"warn the user and ignore attempts to decrement the counter" in {
val counter = buildCounter("attempt-to-decrement")
counter.increment(100)
counter.increment(100)
counter.increment(100)
interceptLog(Level.WARN) {
counter.increment(-10L)
}.head.getMessage() shouldBe(s"Ignored attempt to decrement counter [attempt-to-decrement] on entity [$defaultEntity]")
counter.snapshot().value shouldBe(300)
}
"reset the internal state to zero after taking snapshots" in {
val counter = buildCounter("reset-after-snapshot")
counter.increment()
counter.increment(10)
counter.snapshot().value shouldBe(11)
counter.snapshot().value shouldBe(0)
}
}
}
|