feat: adapt eth_sender tests for running both in Validium mode and …

…Rollup mode (#120)

* abstract confirm many test

* abstract resend_each_block_Tst

* abstract dont_resend_already_mined test

* abstract three_scenarios_test

* abstract failed_eth_tx test

* add correct_order_for_confirmations and skipped_l1_batch_at_the_start abstraction test

* add skipped_l1_batch_in_the_middle test abstraction

* add test_parse_multicall_data abstraction

* add get_multicall_data abstraction

* fix failing tests

* change base branch

* add return type in test function

* separate tests using test helper

* update test methods to accept l1_commit_data_generator

* pass zk lint --check

core/lib/zksync_core/src/eth_sender/mod.rs

@@ -10,6 +10,9 @@ mod zksync_functions;
 #[cfg(test)]
 mod tests;
 
+#[cfg(test)]
+mod tests_helpers;
+
 pub use self::{
     aggregator::Aggregator, error::ETHSenderError, eth_tx_aggregator::EthTxAggregator,
     eth_tx_manager::EthTxManager,