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https://github.com/hanzoai/visor.git
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Kevin KrakauerandgVisor bot
3d305080ed
Since everything fits inside an int64, we avoid using crypto/rand.Int, which can allocate and uses the much more complex big.Int. PiperOrigin-RevId: 580050587
43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
// Copyright 2023 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package rand
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import (
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"math/rand"
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"testing"
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)
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const testIterations = 100_000
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func TestInt63n(t *testing.T) {
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for i := 0; i < testIterations; i++ {
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maximum := rand.Int63()
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for maximum <= 0 {
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maximum = rand.Int63()
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}
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if n := Int63n(maximum); n >= maximum || n < 0 {
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t.Errorf("Int63n(%d) returned bad value %d", maximum, n)
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}
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}
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}
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func TestInt63(t *testing.T) {
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for i := 0; i < testIterations; i++ {
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if n := Int63(); n < 0 {
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t.Errorf("Int63() returned bad value %d", n)
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}
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}
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}
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