open-nomad/client/util_test.go

97 lines
2.0 KiB
Go

package client
import (
"reflect"
"regexp"
"testing"
"time"
"github.com/hashicorp/nomad/nomad/mock"
"github.com/hashicorp/nomad/nomad/structs"
)
func TestDiffAllocs(t *testing.T) {
alloc1 := mock.Alloc() // Ignore
alloc2 := mock.Alloc() // Update
alloc2u := new(structs.Allocation)
*alloc2u = *alloc2
alloc2u.ModifyIndex += 1
alloc3 := mock.Alloc() // Remove
alloc4 := mock.Alloc() // Add
exist := []*structs.Allocation{
alloc1,
alloc2,
alloc3,
}
updated := []*structs.Allocation{
alloc1,
alloc2u,
alloc4,
}
result := diffAllocs(exist, updated)
if len(result.ignore) != 1 || result.ignore[0] != alloc1 {
t.Fatalf("Bad: %#v", result.ignore)
}
if len(result.added) != 1 || result.added[0] != alloc4 {
t.Fatalf("Bad: %#v", result.added)
}
if len(result.removed) != 1 || result.removed[0] != alloc3 {
t.Fatalf("Bad: %#v", result.removed)
}
if len(result.updated) != 1 {
t.Fatalf("Bad: %#v", result.updated)
}
if result.updated[0].exist != alloc2 || result.updated[0].updated != alloc2u {
t.Fatalf("Bad: %#v", result.updated)
}
}
func TestGenerateUUID(t *testing.T) {
prev := generateUUID()
for i := 0; i < 100; i++ {
id := generateUUID()
if prev == id {
t.Fatalf("Should get a new ID!")
}
matched, err := regexp.MatchString(
"[\\da-f]{8}-[\\da-f]{4}-[\\da-f]{4}-[\\da-f]{4}-[\\da-f]{12}", id)
if !matched || err != nil {
t.Fatalf("expected match %s %v %s", id, matched, err)
}
}
}
func TestRandomStagger(t *testing.T) {
intv := time.Minute
for i := 0; i < 10; i++ {
stagger := randomStagger(intv)
if stagger < 0 || stagger >= intv {
t.Fatalf("Bad: %v", stagger)
}
}
}
func TestShuffleStrings(t *testing.T) {
// Generate input
inp := make([]string, 10)
for idx := range inp {
inp[idx] = generateUUID()
}
// Copy the input
orig := make([]string, len(inp))
copy(orig, inp)
// Shuffle
shuffleStrings(inp)
// Ensure order is not the same
if reflect.DeepEqual(inp, orig) {
t.Fatalf("shuffle failed")
}
}