79 lines
2 KiB
Go
79 lines
2 KiB
Go
package aggregator
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import (
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"context"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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"github.com/traefik/traefik/v2/pkg/config/dynamic"
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"github.com/traefik/traefik/v2/pkg/provider"
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"github.com/traefik/traefik/v2/pkg/safe"
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)
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func TestProviderAggregator_Provide(t *testing.T) {
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aggregator := ProviderAggregator{
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internalProvider: &providerMock{"internal"},
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fileProvider: &providerMock{"file"},
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providers: []provider.Provider{
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&providerMock{"salad"},
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&providerMock{"tomato"},
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&providerMock{"onion"},
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},
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}
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cfgCh := make(chan dynamic.Message)
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errCh := make(chan error)
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pool := safe.NewPool(context.Background())
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t.Cleanup(pool.Stop)
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go func() {
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errCh <- aggregator.Provide(cfgCh, pool)
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}()
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// Make sure the file provider is always called first.
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requireReceivedMessageFromProviders(t, cfgCh, []string{"file"})
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// Check if all providers have been called, the order doesn't matter.
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requireReceivedMessageFromProviders(t, cfgCh, []string{"salad", "tomato", "onion", "internal"})
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require.NoError(t, <-errCh)
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}
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// requireReceivedMessageFromProviders makes sure the given providers have emitted a message on the given message channel.
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// Providers order is not enforced.
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func requireReceivedMessageFromProviders(t *testing.T, cfgCh <-chan dynamic.Message, names []string) {
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t.Helper()
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var msg dynamic.Message
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var receivedMessagesFrom []string
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for range names {
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select {
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case <-time.After(100 * time.Millisecond):
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require.Fail(t, "Timeout while waiting for configuration.")
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case msg = <-cfgCh:
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receivedMessagesFrom = append(receivedMessagesFrom, msg.ProviderName)
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}
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}
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require.ElementsMatch(t, names, receivedMessagesFrom)
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}
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type providerMock struct {
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Name string
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}
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func (p *providerMock) Init() error {
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return nil
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}
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func (p *providerMock) Provide(configurationChan chan<- dynamic.Message, pool *safe.Pool) error {
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configurationChan <- dynamic.Message{
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ProviderName: p.Name,
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Configuration: &dynamic.Configuration{},
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}
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return nil
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}
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