1 files changed, 107 insertions, 0 deletions
diff --git a/vendor/github.com/armon/go-metrics/inmem_test.go b/vendor/github.com/armon/go-metrics/inmem_test.go
new file mode 100644
index 000000000..1c2455114
--- /dev/null
+++ b/vendor/github.com/armon/go-metrics/inmem_test.go
@@ -0,0 +1,107 @@
+package metrics
+
+import (
+	"math"
+	"testing"
+	"time"
+)
+
+func TestInmemSink(t *testing.T) {
+	inm := NewInmemSink(10*time.Millisecond, 50*time.Millisecond)
+
+	data := inm.Data()
+	if len(data) != 1 {
+		t.Fatalf("bad: %v", data)
+	}
+
+	// Add data points
+	inm.SetGauge([]string{"foo", "bar"}, 42)
+	inm.EmitKey([]string{"foo", "bar"}, 42)
+	inm.IncrCounter([]string{"foo", "bar"}, 20)
+	inm.IncrCounter([]string{"foo", "bar"}, 22)
+	inm.AddSample([]string{"foo", "bar"}, 20)
+	inm.AddSample([]string{"foo", "bar"}, 22)
+
+	data = inm.Data()
+	if len(data) != 1 {
+		t.Fatalf("bad: %v", data)
+	}
+
+	intvM := data[0]
+	intvM.RLock()
+
+	if time.Now().Sub(intvM.Interval) > 10*time.Millisecond {
+		t.Fatalf("interval too old")
+	}
+	if intvM.Gauges["foo.bar"] != 42 {
+		t.Fatalf("bad val: %v", intvM.Gauges)
+	}
+	if intvM.Points["foo.bar"][0] != 42 {
+		t.Fatalf("bad val: %v", intvM.Points)
+	}
+
+	agg := intvM.Counters["foo.bar"]
+	if agg.Count != 2 {
+		t.Fatalf("bad val: %v", agg)
+	}
+	if agg.Rate != 200 {
+		t.Fatalf("bad val: %v", agg.Rate)
+	}
+	if agg.Sum != 42 {
+		t.Fatalf("bad val: %v", agg)
+	}
+	if agg.SumSq != 884 {
+		t.Fatalf("bad val: %v", agg)
+	}
+	if agg.Min != 20 {
+		t.Fatalf("bad val: %v", agg)
+	}
+	if agg.Max != 22 {
+		t.Fatalf("bad val: %v", agg)
+	}
+	if agg.Mean() != 21 {
+		t.Fatalf("bad val: %v", agg)
+	}
+	if agg.Stddev() != math.Sqrt(2) {
+		t.Fatalf("bad val: %v", agg)
+	}
+
+	if agg.LastUpdated.IsZero() {
+		t.Fatalf("agg.LastUpdated is not set: %v", agg)
+	}
+
+	diff := time.Now().Sub(agg.LastUpdated).Seconds()
+	if diff > 1 {
+		t.Fatalf("time diff too great: %f", diff)
+	}
+
+	if agg = intvM.Samples["foo.bar"]; agg == nil {
+		t.Fatalf("missing sample")
+	}
+
+	intvM.RUnlock()
+
+	for i := 1; i < 10; i++ {
+		time.Sleep(10 * time.Millisecond)
+		inm.SetGauge([]string{"foo", "bar"}, 42)
+		data = inm.Data()
+		if len(data) != min(i+1, 5) {
+			t.Fatalf("bad: %v", data)
+		}
+	}
+
+	// Should not exceed 5 intervals!
+	time.Sleep(10 * time.Millisecond)
+	inm.SetGauge([]string{"foo", "bar"}, 42)
+	data = inm.Data()
+	if len(data) != 5 {
+		t.Fatalf("bad: %v", data)
+	}
+}
+
+func min(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}