Initial commit

app/service/main/bns/lib/shuffle/shuffle_test.go

@@ -0,0 +1,27 @@
+package shuffle
+
+import (
+	"strings"
+	"testing"
+)
+
+type List []string
+
+func (l List) Len() int {
+	return len(l)
+}
+
+func (l List) Swap(i, j int) {
+	l[i], l[j] = l[j], l[i]
+}
+
+func TestShuffle(t *testing.T) {
+	l := List{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9"}
+	old := strings.Join(l, "")
+	Shuffle(l)
+	new := strings.Join(l, "")
+	if old == new {
+		t.Errorf("shuffle error, %s == %s", old, new)
+	}
+	t.Log(new)
+}