faf0c44429
If we would exceeded the TargetPool API maximums, instead just randomly select some subsection of the nodes to include in the TP instead.
87 lines
2.0 KiB
Go
87 lines
2.0 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package rand
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import (
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"math/rand"
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"reflect"
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"sort"
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"strings"
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"testing"
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)
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func TestString(t *testing.T) {
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valid := "0123456789abcdefghijklmnopqrstuvwxyz"
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for _, l := range []int{0, 1, 2, 10, 123} {
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s := String(l)
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if len(s) != l {
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t.Errorf("expected string of size %d, got %q", l, s)
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}
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for _, c := range s {
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if !strings.ContainsRune(valid, c) {
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t.Errorf("expected valid charaters, got %v", c)
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}
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}
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}
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}
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// Confirm that panic occurs on invalid input.
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func TestRangePanic(t *testing.T) {
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defer func() {
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if err := recover(); err == nil {
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t.Errorf("Panic didn't occur!")
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}
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}()
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// Should result in an error...
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Intn(0)
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}
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func TestIntn(t *testing.T) {
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// 0 is invalid.
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for _, max := range []int{1, 2, 10, 123} {
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inrange := Intn(max)
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if inrange < 0 || inrange > max {
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t.Errorf("%v out of range (0,%v)", inrange, max)
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}
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}
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}
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func TestPerm(t *testing.T) {
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Seed(5)
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rand.Seed(5)
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for i := 1; i < 20; i++ {
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actual := Perm(i)
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expected := rand.Perm(i)
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for j := 0; j < i; j++ {
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if actual[j] != expected[j] {
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t.Errorf("Perm call result is unexpected")
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}
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}
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}
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}
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func TestShuffle(t *testing.T) {
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Seed(5) // Arbitrary RNG seed for deterministic testing.
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have := []int{0, 1, 2, 3, 4}
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want := []int{3, 2, 4, 1, 0} // "have" shuffled, with RNG at Seed(5).
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got := append([]int{}, have...)
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Shuffle(sort.IntSlice(got))
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if !reflect.DeepEqual(got, want) {
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t.Errorf("Shuffle(%v) => %v, want %v", have, got, want)
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}
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}
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