2018-01-29 19:44:18 +00:00
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// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package http2
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import "testing"
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func TestFlow(t *testing.T) {
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var st flow
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var conn flow
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st.add(3)
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conn.add(2)
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if got, want := st.available(), int32(3); got != want {
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t.Errorf("available = %d; want %d", got, want)
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}
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st.setConnFlow(&conn)
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if got, want := st.available(), int32(2); got != want {
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t.Errorf("after parent setup, available = %d; want %d", got, want)
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}
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st.take(2)
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if got, want := conn.available(), int32(0); got != want {
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t.Errorf("after taking 2, conn = %d; want %d", got, want)
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}
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if got, want := st.available(), int32(0); got != want {
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t.Errorf("after taking 2, stream = %d; want %d", got, want)
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}
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}
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func TestFlowAdd(t *testing.T) {
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var f flow
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if !f.add(1) {
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t.Fatal("failed to add 1")
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}
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if !f.add(-1) {
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t.Fatal("failed to add -1")
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}
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if got, want := f.available(), int32(0); got != want {
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t.Fatalf("size = %d; want %d", got, want)
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}
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if !f.add(1<<31 - 1) {
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t.Fatal("failed to add 2^31-1")
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}
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if got, want := f.available(), int32(1<<31-1); got != want {
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t.Fatalf("size = %d; want %d", got, want)
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}
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if f.add(1) {
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t.Fatal("adding 1 to max shouldn't be allowed")
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}
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2018-09-05 15:36:14 +00:00
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}
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func TestFlowAddOverflow(t *testing.T) {
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var f flow
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if !f.add(0) {
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t.Fatal("failed to add 0")
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}
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if !f.add(-1) {
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t.Fatal("failed to add -1")
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}
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if !f.add(0) {
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t.Fatal("failed to add 0")
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}
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if !f.add(1) {
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t.Fatal("failed to add 1")
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}
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if !f.add(1) {
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t.Fatal("failed to add 1")
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}
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if !f.add(0) {
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t.Fatal("failed to add 0")
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}
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if !f.add(-3) {
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t.Fatal("failed to add -3")
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}
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if got, want := f.available(), int32(-2); got != want {
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t.Fatalf("size = %d; want %d", got, want)
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}
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if !f.add(1<<31 - 1) {
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t.Fatal("failed to add 2^31-1")
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}
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if got, want := f.available(), int32(1+-3+(1<<31-1)); got != want {
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t.Fatalf("size = %d; want %d", got, want)
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}
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2018-01-29 19:44:18 +00:00
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}
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