gnosis / dex-services / 4742

31%

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travis-pro

Estimate considered good if it is within 1 order of magnitude (#1308)

Previously we were using the absolute error to determine if a price estimate was bad. This was not exactly correct, because its more important for the estimate to be within a certain x orders of magnitude of the real price.

### Test Plan

```
cargo run --release -p e2e --bin historic_prices -- --orderbook-file target/orderbook-file-mainnet
   Compiling e2e v1.0.0 (/var/home/nlordell/Developer/dex-services/e2e)
    Finished release [optimized] target(s) in 3.29s
     Running `target/release/historic_prices --orderbook-file target/orderbook-file-mainnet`
58296 / 58296 [=====================================================================] 100.00 % 364.71/s
Processed 16548 token prices: average error 22941.12%, bad 2.91%, missed 9.39%.
```

12327 of 48826 branches covered (25.25%)

Branch coverage included in aggregate %.

3355 of 5238 relevant lines covered (64.05%)

27535.43 hits per line