ringbuffer: add tests and benchmarks

pkg/ringbuffer/ringbuffer_test.go

@@ -0,0 +1,114 @@
+package ringbuffer
+
+import (
+	"math/rand"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestPushBeforePull(t *testing.T) {
+	r := New(1024)
+	defer r.Close()
+
+	data := make([]byte, 1024)
+	rand.Read(data)
+
+	r.Push(data)
+	ret, ok := r.Pull()
+	require.Equal(t, true, ok)
+	require.Equal(t, data, ret)
+}
+
+func TestPullBeforePush(t *testing.T) {
+	r := New(1024)
+	defer r.Close()
+
+	data := make([]byte, 1024)
+	rand.Read(data)
+
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		ret, ok := r.Pull()
+		require.Equal(t, true, ok)
+		require.Equal(t, data, ret)
+	}()
+
+	time.Sleep(100 * time.Millisecond)
+
+	r.Push(data)
+	<-done
+}
+
+func BenchmarkPushPullContinuous(b *testing.B) {
+	r := New(1024 * 8)
+	defer r.Close()
+
+	data := make([]byte, 1024)
+
+	for n := 0; n < b.N; n++ {
+		done := make(chan struct{})
+		go func() {
+			defer close(done)
+			for i := 0; i < 1024*8; i++ {
+				r.Push(data)
+			}
+		}()
+
+		for i := 0; i < 1024*8; i++ {
+			r.Pull()
+		}
+
+		<-done
+	}
+}
+
+func BenchmarkPushPullPaused5(b *testing.B) {
+	r := New(128)
+	defer r.Close()
+
+	data := make([]byte, 1024)
+
+	for n := 0; n < b.N; n++ {
+		done := make(chan struct{})
+		go func() {
+			defer close(done)
+			for i := 0; i < 128; i++ {
+				r.Push(data)
+				time.Sleep(5 * time.Millisecond)
+			}
+		}()
+
+		for i := 0; i < 128; i++ {
+			r.Pull()
+		}
+
+		<-done
+	}
+}
+
+func BenchmarkPushPullPaused10(b *testing.B) {
+	r := New(1024 * 8)
+	defer r.Close()
+
+	data := make([]byte, 1024)
+
+	for n := 0; n < b.N; n++ {
+		done := make(chan struct{})
+		go func() {
+			defer close(done)
+			for i := 0; i < 128; i++ {
+				r.Push(data)
+				time.Sleep(10 * time.Millisecond)
+			}
+		}()
+
+		for i := 0; i < 128; i++ {
+			r.Pull()
+		}
+
+		<-done
+	}
+}