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58 lines
952 B
58 lines
952 B
package watcher_test
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import (
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"context"
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"fmt"
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"sync"
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"sync/atomic"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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"gitoa.ru/go-4devs/config"
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"gitoa.ru/go-4devs/config/provider/watcher"
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"gitoa.ru/go-4devs/config/value"
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)
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type provider struct {
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cnt int32
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}
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func (p *provider) Name() string {
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return "test"
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}
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func (p *provider) Read(ctx context.Context, k config.Key) (config.Variable, error) {
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p.cnt++
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return config.Variable{
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Name: "tmpname",
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Value: value.JString(fmt.Sprint(p.cnt)),
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}, nil
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}
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func TestWatcher(t *testing.T) {
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t.Parallel()
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ctx := context.Background()
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prov := &provider{}
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w := watcher.New(time.Second, prov)
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wg := sync.WaitGroup{}
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wg.Add(2)
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var cnt int32
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err := w.Watch(
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ctx,
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config.Key{Name: "tmpname"},
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func(ctx context.Context, oldVar, newVar config.Variable) {
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atomic.AddInt32(&cnt, 1)
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wg.Done()
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},
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)
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require.NoError(t, err)
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wg.Wait()
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require.Equal(t, int32(2), cnt)
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}
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