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// Copyright 2016 The go-qemu Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package hypervisor
import (
"context"
"reflect"
"testing"
"github.com/digitalocean/go-qemu/qmp"
)
func TestHypervisorDomains(t *testing.T) {
wantDomains := []string{"ubuntu", "arch", "gentoo"}
var seenDomains []string
hv := testHypervisor(
t,
wantDomains,
func(domain string) (qmp.Monitor, error) {
seenDomains = append(seenDomains, domain)
return &noopMonitor{}, nil
},
)
domains, err := hv.Domains()
if err != nil {
t.Fatalf("failed to retrieve domains: %v", err)
}
gotDomains := make([]string, 0, len(domains))
for _, d := range domains {
gotDomains = append(gotDomains, d.Name)
}
if want, got := wantDomains, gotDomains; !reflect.DeepEqual(want, got) {
t.Fatalf("unexpected domains:\n- want: %v\n- got: %v",
want, got)
}
if want, got := wantDomains, seenDomains; !reflect.DeepEqual(want, got) {
t.Fatalf("did not open monitors for all domains:\n- want: %v\n- got: %v",
want, got)
}
}
func TestHypervisorDomainOK(t *testing.T) {
const wantDomain = "ubuntu"
hv := testHypervisor(
t,
[]string{wantDomain},
noopMonitorFunc(),
)
gotDomain, err := hv.Domain(wantDomain)
if err != nil {
t.Fatalf("failed to retrieve domain: %v", err)
}
if want, got := wantDomain, gotDomain.Name; want != got {
t.Fatalf("unexpected domain:\n- want: %v\n- got: %v",
want, got)
}
}
func TestHypervisorDomainNotFound(t *testing.T) {
hv := testHypervisor(
t,
nil,
noopMonitorFunc(),
)
_, err := hv.Domain("foo")
if want, got := `domain "foo" not found`, err.Error(); want != got {
t.Fatalf("unexpected error:\n- want: %v\n- got: %v",
want, got)
}
}
func TestHypervisorDomainNames(t *testing.T) {
wantDomains := []string{"ubuntu", "arch", "gentoo"}
hv := testHypervisor(
t,
wantDomains,
noopMonitorFunc(),
)
gotDomains, err := hv.DomainNames()
if err != nil {
t.Fatalf("failed to retrieve domain names: %v", err)
}
if want, got := wantDomains, gotDomains; !reflect.DeepEqual(want, got) {
t.Fatalf("unexpected domain names:\n- want: %v\n- got: %v",
want, got)
}
}
// A monitorFunc is a function which can create a qmp.Monitor.
type monitorFunc func(domain string) (qmp.Monitor, error)
func noopMonitorFunc() monitorFunc {
return func(_ string) (qmp.Monitor, error) {
return &noopMonitor{}, nil
}
}
var _ qmp.Monitor = &noopMonitor{}
type noopMonitor struct{}
func (noopMonitor) Connect() error { return nil }
func (noopMonitor) Disconnect() error { return nil }
func (noopMonitor) Run(_ []byte) ([]byte, error) { return nil, nil }
func (noopMonitor) Events(context.Context) (<-chan qmp.Event, error) { return nil, nil }
type testConnectMonitor struct {
connected bool
noopMonitor
}
func (m *testConnectMonitor) Connect() error {
m.connected = true
return nil
}
func (m *testConnectMonitor) Disconnect() error {
m.connected = false
return nil
}
func testHypervisor(
t *testing.T,
domains []string,
newMonitor monitorFunc,
) *Hypervisor {
return New(&testDriver{
newMonitor: newMonitor,
domains: domains,
})
}
type testDriver struct {
newMonitor monitorFunc
domains []string
}
func (d *testDriver) NewMonitor(domain string) (qmp.Monitor, error) {
return d.newMonitor(domain)
}
func (d *testDriver) DomainNames() ([]string, error) {
return d.domains, nil
}
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