containerd/supervisor/sort_test.go

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package supervisor
import (
"os"
"sort"
"testing"
"github.com/docker/containerd/runtime"
"github.com/opencontainers/specs"
)
type testProcess struct {
id string
}
func (p *testProcess) ID() string {
return p.id
}
func (p *testProcess) Stdin() string {
return ""
}
func (p *testProcess) Stdout() string {
return ""
}
func (p *testProcess) Stderr() string {
return ""
}
func (p *testProcess) ExitFD() int {
return -1
}
func (p *testProcess) ExitStatus() (int, error) {
return -1, nil
}
func (p *testProcess) Container() runtime.Container {
return nil
}
func (p *testProcess) Spec() specs.Process {
return specs.Process{}
}
func (p *testProcess) Signal(os.Signal) error {
return nil
}
func (p *testProcess) Close() error {
return nil
}
func TestSortProcesses(t *testing.T) {
p := []runtime.Process{
&testProcess{"ls"},
&testProcess{"other"},
&testProcess{"init"},
&testProcess{"other2"},
}
s := &processSorter{p}
sort.Sort(s)
if id := p[len(p)-1].ID(); id != "init" {
t.Fatalf("expected init but received %q", id)
}
}