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// Copyright 2019 The Go 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 buildenv
import (
"testing"
)
func TestEnvironmentNextZone(t *testing.T) {
testCases := []struct {
name string
env Environment
wantOneOf []string // desired zone should appear in this slice
}{
{
name: "zones-not-set",
env: Environment{
ControlZone: "kentucky",
VMZones: []string{},
},
wantOneOf: []string{"kentucky"},
},
{
name: "zone-and-zones-set",
env: Environment{
ControlZone: "kentucky",
VMZones: []string{"texas", "california", "washington"},
},
wantOneOf: []string{"texas", "california", "washington"},
},
{
name: "zones-only-contains-one-entry",
env: Environment{
ControlZone: "kentucky",
VMZones: []string{"texas"},
},
wantOneOf: []string{"texas"},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
got := tc.env.RandomVMZone()
if !containsString(got, tc.wantOneOf) {
t.Errorf("got=%q; want %v", got, tc.wantOneOf)
}
})
}
}
func TestEnvironmentRandomEC2VMZone(t *testing.T) {
testCases := []struct {
name string
env Environment
wantOneOf []string
}{
{
name: "zones-not-set",
env: Environment{
PreferredEC2Zone: "zone-a",
VMEC2Zones: []string{},
},
wantOneOf: []string{"zone-a"},
},
{
name: "zone-and-zones-set",
env: Environment{
PreferredEC2Zone: "zone-a",
VMEC2Zones: []string{"zone-b", "zone-c"},
},
wantOneOf: []string{"zone-b", "zone-c"},
},
{
name: "zones-only-contains-one-entry",
env: Environment{
PreferredEC2Zone: "zone-a",
VMEC2Zones: []string{"zone-b"},
},
wantOneOf: []string{"zone-b"},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
got := tc.env.RandomEC2VMZone()
if !containsString(got, tc.wantOneOf) {
t.Errorf("got=%q; want %v", got, tc.wantOneOf)
}
})
}
}
func containsString(item string, items []string) bool {
for _, s := range items {
if item == s {
return true
}
}
return false
}