Move Linux client & common packages into a public repo.

ratelimit/ratelimit_test.go

@@ -0,0 +1,28 @@
+// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package ratelimit
+
+import (
+	"testing"
+	"time"
+)
+
+func TestBucket(t *testing.T) {
+	b := Bucket{
+		FillInterval: time.Second,
+		Burst:        3,
+	}
+	expect := []int{3, 2, 1, 0, 0}
+	for i, want := range expect {
+		got := b.TryGet()
+		if want != got {
+			t.Errorf("#%d want=%d got=%d\n", i, want, got)
+		}
+	}
+	b.tick()
+	if want, got := 1, b.TryGet(); want != got {
+		t.Errorf("after tick: want=%d got=%d\n", want, got)
+	}
+}