78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
package aggregator
|
|
|
|
import (
|
|
"context"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
"github.com/traefik/traefik/v2/pkg/config/dynamic"
|
|
"github.com/traefik/traefik/v2/pkg/provider"
|
|
"github.com/traefik/traefik/v2/pkg/safe"
|
|
)
|
|
|
|
func TestProviderAggregator_Provide(t *testing.T) {
|
|
aggregator := ProviderAggregator{
|
|
internalProvider: &providerMock{"internal"},
|
|
fileProvider: &providerMock{"file"},
|
|
providers: []provider.Provider{
|
|
&providerMock{"salad"},
|
|
&providerMock{"tomato"},
|
|
&providerMock{"onion"},
|
|
},
|
|
}
|
|
|
|
cfgCh := make(chan dynamic.Message)
|
|
errCh := make(chan error)
|
|
pool := safe.NewPool(context.Background())
|
|
|
|
t.Cleanup(pool.Stop)
|
|
|
|
go func() {
|
|
errCh <- aggregator.Provide(cfgCh, pool)
|
|
}()
|
|
|
|
// Make sure the file provider is always called first.
|
|
requireReceivedMessageFromProviders(t, cfgCh, []string{"file"})
|
|
|
|
// Check if all providers have been called, the order doesn't matter.
|
|
requireReceivedMessageFromProviders(t, cfgCh, []string{"salad", "tomato", "onion", "internal"})
|
|
|
|
require.NoError(t, <-errCh)
|
|
}
|
|
|
|
// requireReceivedMessageFromProviders makes sure the given providers have emitted a message on the given message channel.
|
|
// Providers order is not enforced.
|
|
func requireReceivedMessageFromProviders(t *testing.T, cfgCh <-chan dynamic.Message, names []string) {
|
|
t.Helper()
|
|
|
|
var msg dynamic.Message
|
|
var receivedMessagesFrom []string
|
|
|
|
for range names {
|
|
select {
|
|
case <-time.After(10 * time.Millisecond):
|
|
case msg = <-cfgCh:
|
|
receivedMessagesFrom = append(receivedMessagesFrom, msg.ProviderName)
|
|
}
|
|
}
|
|
|
|
require.ElementsMatch(t, names, receivedMessagesFrom)
|
|
}
|
|
|
|
type providerMock struct {
|
|
Name string
|
|
}
|
|
|
|
func (p *providerMock) Init() error {
|
|
return nil
|
|
}
|
|
|
|
func (p *providerMock) Provide(configurationChan chan<- dynamic.Message, pool *safe.Pool) error {
|
|
configurationChan <- dynamic.Message{
|
|
ProviderName: p.Name,
|
|
Configuration: &dynamic.Configuration{},
|
|
}
|
|
|
|
return nil
|
|
}
|