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package addchain
import (
"testing"
"github.com/mmcloughlin/addchain/internal/assert"
)
func TestProgramEvaluateDoublings(t *testing.T) {
// Build a chain of doublings.
p := Program{}
n := 17
for i := 0; i < n; i++ {
_, err := p.Double(i)
assert.NoError(t, err)
}
// Evaluate.
c := p.Evaluate()
for i, got := range c {
if !got.IsUint64() {
t.Fatal("expected to be representable as uint64")
}
expect := uint64(1) << uint(i)
if got.Uint64() != expect {
t.Fail()
}
}
}
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