initial import

core/collection/ring_test.go

@@ -0,0 +1,25 @@
+package collection
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRingLess(t *testing.T) {
+	ring := NewRing(5)
+	for i := 0; i < 3; i++ {
+		ring.Add(i)
+	}
+	elements := ring.Take()
+	assert.ElementsMatch(t, []interface{}{0, 1, 2}, elements)
+}
+
+func TestRingMore(t *testing.T) {
+	ring := NewRing(5)
+	for i := 0; i < 11; i++ {
+		ring.Add(i)
+	}
+	elements := ring.Take()
+	assert.ElementsMatch(t, []interface{}{6, 7, 8, 9, 10}, elements)
+}