完善Source和Sink

stream/ringbuffer_test.go

@@ -0,0 +1,29 @@
+package stream
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestRingBuffer(t *testing.T) {
+	buffer := NewRingBuffer(10)
+	full := buffer.IsFull()
+	empty := buffer.IsEmpty()
+	head := buffer.Head()
+	tail := buffer.Tail()
+	pop := buffer.Pop()
+
+	println(full)
+	println(empty)
+	println(head)
+	println(tail)
+	println(pop)
+	for i := 0; i < 100; i++ {
+		buffer.Push(i)
+	}
+
+	for !buffer.IsEmpty() {
+		i := buffer.Pop()
+		println(fmt.Sprintf("element:%d", i.(int)))
+	}
+}