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package api
import (
"context"
"testing"
"time"
"github.com/stretchr/testify/require"
)
type NoopChainDataReader struct {
CallCount int
Data *ChainData
}
func (n *NoopChainDataReader) Get(ctx context.Context) (*ChainData, error) {
n.CallCount++
return &ChainData{
MaxBalance: n.Data.MaxBalance,
DisburserBalance: n.Data.DisburserBalance,
NextDisbursementID: n.Data.NextDisbursementID,
DepositContractBalance: n.Data.DepositContractBalance,
NextDepositID: n.Data.NextDepositID,
MaxDepositAmount: n.Data.MaxDepositAmount,
MinDepositAmount: n.Data.MinDepositAmount,
}, nil
}
func TestCachingChainDataReaderGet(t *testing.T) {
inner := &NoopChainDataReader{
Data: &ChainData{
NextDisbursementID: 1,
},
}
require.Equal(t, inner.CallCount, 0)
cdr := NewCachingChainDataReader(inner, 5*time.Millisecond)
data, err := cdr.Get(context.Background())
require.NoError(t, err)
require.Equal(t, 1, inner.CallCount)
require.NotNil(t, data)
inner.Data = &ChainData{
NextDisbursementID: 2,
}
data, err = cdr.Get(context.Background())
require.NoError(t, err)
require.Equal(t, 1, inner.CallCount)
require.EqualValues(t, data.NextDisbursementID, 1)
time.Sleep(10 * time.Millisecond)
data, err = cdr.Get(context.Background())
require.NoError(t, err)
require.Equal(t, 2, inner.CallCount)
require.EqualValues(t, data.NextDisbursementID, 2)
}