cloudflared-mirror/overwatch/manager_test.go

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2020-05-01 15:30:50 +00:00
package overwatch
import (
"crypto/md5"
"errors"
"fmt"
"io"
"testing"
"github.com/stretchr/testify/assert"
)
type mockService struct {
serviceName string
serviceType string
runError error
}
func (s *mockService) Name() string {
return s.serviceName
}
func (s *mockService) Type() string {
return s.serviceType
}
func (s *mockService) Hash() string {
h := md5.New()
io.WriteString(h, s.serviceName)
io.WriteString(h, s.serviceType)
return fmt.Sprintf("%x", h.Sum(nil))
}
func (s *mockService) Shutdown() {
}
func (s *mockService) Run() error {
return s.runError
}
func TestManagerAddAndRemove(t *testing.T) {
m := NewAppManager(nil)
first := &mockService{serviceName: "first", serviceType: "mock"}
second := &mockService{serviceName: "second", serviceType: "mock"}
m.Add(first)
m.Add(second)
assert.Len(t, m.Services(), 2, "expected 2 services in the list")
m.Remove(first.Name())
services := m.Services()
assert.Len(t, services, 1, "expected 1 service in the list")
assert.Equal(t, second.Hash(), services[0].Hash(), "hashes should match. Wrong service was removed")
}
func TestManagerDuplicate(t *testing.T) {
m := NewAppManager(nil)
first := &mockService{serviceName: "first", serviceType: "mock"}
m.Add(first)
m.Add(first)
assert.Len(t, m.Services(), 1, "expected 1 service in the list")
}
func TestManagerErrorChannel(t *testing.T) {
errChan := make(chan error)
serviceCallback := func(t string, name string, err error) {
errChan <- err
}
m := NewAppManager(serviceCallback)
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err := errors.New("test error")
first := &mockService{serviceName: "first", serviceType: "mock", runError: err}
m.Add(first)
respErr := <-errChan
assert.Equal(t, err, respErr, "errors don't match")
}