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|
package hooks
import (
"context"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"testing"
"time"
rspec "github.com/opencontainers/runtime-spec/specs-go"
"github.com/stretchr/testify/assert"
)
func TestMonitorGood(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
dir, err := ioutil.TempDir("", "hooks-test-")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
manager, err := New(ctx, []string{dir})
if err != nil {
t.Fatal(err)
}
sync := make(chan error, 2)
go manager.Monitor(ctx, sync)
err = <-sync
if err != nil {
t.Fatal(err)
}
jsonPath := filepath.Join(dir, "a.json")
t.Run("good-addition", func(t *testing.T) {
err = ioutil.WriteFile(jsonPath, []byte(fmt.Sprintf("{\"version\": \"1.0.0\", \"hook\": {\"path\": \"%s\"}, \"when\": {\"always\": true}, \"stages\": [\"prestart\", \"poststart\", \"poststop\"]}", path)), 0644)
if err != nil {
t.Fatal(err)
}
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
config := &rspec.Spec{}
err = manager.Hooks(config, map[string]string{}, false)
if err != nil {
t.Fatal(err)
}
assert.Equal(t, &rspec.Hooks{
Prestart: []rspec.Hook{
{
Path: path,
},
},
Poststart: []rspec.Hook{
{
Path: path,
},
},
Poststop: []rspec.Hook{
{
Path: path,
},
},
}, config.Hooks)
})
t.Run("good-removal", func(t *testing.T) {
err = os.Remove(jsonPath)
if err != nil {
t.Fatal(err)
}
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
config := &rspec.Spec{}
expected := config.Hooks
err = manager.Hooks(config, map[string]string{}, false)
if err != nil {
t.Fatal(err)
}
assert.Equal(t, expected, config.Hooks)
})
t.Run("bad-addition", func(t *testing.T) {
err = ioutil.WriteFile(jsonPath, []byte("{\"version\": \"-1\"]}"), 0644)
if err != nil {
t.Fatal(err)
}
time.Sleep(100 * time.Millisecond) // wait for monitor to notice
config := &rspec.Spec{}
expected := config.Hooks
err = manager.Hooks(config, map[string]string{}, false)
if err != nil {
t.Fatal(err)
}
assert.Equal(t, expected, config.Hooks)
err = os.Remove(jsonPath)
if err != nil {
t.Fatal(err)
}
})
cancel()
err = <-sync
assert.Equal(t, context.Canceled, err)
}
func TestMonitorBadWatcher(t *testing.T) {
ctx := context.Background()
manager, err := New(ctx, []string{})
if err != nil {
t.Fatal(err)
}
manager.directories = []string{"/does/not/exist"}
sync := make(chan error, 2)
go manager.Monitor(ctx, sync)
err = <-sync
if !os.IsNotExist(err) {
t.Fatal("opaque wrapping for not-exist errors")
}
}
|
