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package csm
import (
"testing"
)
func TestMetricChanPush(t *testing.T) {
ch := newMetricChan(5)
defer close(ch.ch)
pushed := ch.Push(metric{})
if !pushed {
t.Errorf("expected metrics to be pushed")
}
if e, a := 1, len(ch.ch); e != a {
t.Errorf("expected %d, but received %d", e, a)
}
}
func TestMetricChanPauseContinue(t *testing.T) {
ch := newMetricChan(5)
defer close(ch.ch)
ch.Pause()
if !ch.IsPaused() {
t.Errorf("expected to be paused, but did not pause properly")
}
ch.Continue()
if ch.IsPaused() {
t.Errorf("expected to be not paused, but did not continue properly")
}
pushed := ch.Push(metric{})
if !pushed {
t.Errorf("expected metrics to be pushed")
}
if e, a := 1, len(ch.ch); e != a {
t.Errorf("expected %d, but received %d", e, a)
}
}
func TestMetricChanPushWhenPaused(t *testing.T) {
ch := newMetricChan(5)
defer close(ch.ch)
ch.Pause()
pushed := ch.Push(metric{})
if pushed {
t.Errorf("expected metrics to not be pushed")
}
if e, a := 0, len(ch.ch); e != a {
t.Errorf("expected %d, but received %d", e, a)
}
}
func TestMetricChanNonBlocking(t *testing.T) {
ch := newMetricChan(0)
defer close(ch.ch)
pushed := ch.Push(metric{})
if pushed {
t.Errorf("expected metrics to be not pushed")
}
if e, a := 0, len(ch.ch); e != a {
t.Errorf("expected %d, but received %d", e, a)
}
}
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