fix: mock CheckTx call for mempool recheck

[tzdybal]

Overview

Closes: #1558

Checklist

• New and updated code has appropriate documentation
• New and updated code has new and/or updated testing
• Required CI checks are passing
• Visual proof for any user facing features like CLI or documentation updates
• Linked issues closed with keywords

Summary by CodeRabbit

• Tests
  • Enhanced the TestMempool2Nodes function to include a new expectation for transaction checks, ensuring more robust testing of transaction handling.

[coderabbitai]

Walkthrough

The recent update primarily focuses on enhancing the stability and correctness of the TestMempool2Nodes function. By introducing a new expectation for the CheckTx method to handle a specific Type parameter and ensuring it returns a Code: 0 response, the changes aim at reducing test flakiness and aligning method call expectations with actual behavior, addressing key issues related to mempool and block synchronization.

Changes

Files	Change Summary
node/full_client_test.go	Added expectation for CheckTx with specific Type, returning Code: 0.

Assessment against linked issues

Objective	Addressed	Explanation
Objective 1-5, 7-10 (#1558)	❓	The summary mentions addressing a specific issue in CheckTx, which could impact these areas, but without details on how each objective is specifically addressed, it's unclear.
Objective 6 (#1558): Review CheckTxAsync and recheckTxs methods.	❌	No mention of modifications to CheckTxAsync and recheckTxs methods in the summary.

Poem

In the land of code, where the bugs do roam,
A rabbit hopped in, making it home.
With a flick of its ear, a twist of its tail,
The flakiness gone, the rabbit prevails.
🌟 In tests and in mempool, it danced with glee,
For stability's sake, a victory spree.
"Hop, hop, hooray!" it cheerfully sings,
As into the sunset, it softly springs. 🐇💻✨

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Review Status

Actionable comments generated: 0

Configuration used: CodeRabbit UI

Commits

Files that changed from the base of the PR and between 8736541 and a88640e.

Files selected for processing (1)

• node/full_client_test.go (1 hunks)

Additional comments: 1

node/full_client_test.go (1)

• 837-837: The addition of a .Maybe() expectation for the CheckTx method with a Type parameter set to abci.CheckTxType_Recheck and a Code of 0 is a targeted fix to address the test flakiness by ensuring that rechecks of transactions in the mempool are handled correctly. This change aligns with the PR objectives to stabilize the TestMempool2Nodes test by ensuring the CheckTx method behaves as expected during the recheck process in the mempool. It's a good practice to explicitly set expectations for mock method calls, especially in tests that involve conditional logic or state changes, such as rechecking transactions in a mempool. This ensures that the test accurately reflects the intended behavior of the system under test and can help prevent flakiness by making the test's assumptions and requirements clear.