fix(zetacore): add default cctx list pagination size

[gartnera]

This endpoint returns all CCTXs. It takes about 15 minutes to respond on mainnet and degrades RPC providers. Add a default page size to ensure the response is fast by default.

Summary by CodeRabbit

• New Features

  • Introduced a default pagination limit of 100 for cross-chain transaction queries, enhancing usability.

• Bug Fixes

  • Improved handling of requests without pagination parameters, ensuring no errors are returned.

• Tests

  • Added comprehensive tests for the CctxAll method to validate functionality under different pagination scenarios.

[coderabbitai]

Walkthrough

Walkthrough

The changes introduce a new constant, DefaultPageSize, set to 100, which is utilized in the CctxAll function to manage pagination. If the request lacks pagination or specifies a limit of zero, the function initializes pagination with this default value. Additionally, a new test function, TestKeeper_CctxAll, has been added to validate the behavior of the CctxAll method under various conditions, including handling empty requests and ensuring correct pagination behavior.

Changes

Files	Change Summary
x/crosschain/keeper/grpc_query_cctx.go	Added constant DefaultPageSize with a value of 100 for default pagination in the CctxAll function.
x/crosschain/keeper/grpc_query_cctx_test.go	Introduced TestKeeper_CctxAll function with three sub-tests to validate the CctxAll method: handling empty requests, verifying default page size, and testing custom page size functionality.

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Recent review details

Configuration used: .coderabbit.yaml
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 1929ff6 and 2474213.

Files selected for processing (2)

• x/crosschain/keeper/grpc_query_cctx.go (2 hunks)
• x/crosschain/keeper/grpc_query_cctx_test.go (2 hunks)

Additional context used

Path-based instructions (2)

x/crosschain/keeper/grpc_query_cctx.go (1)

Pattern **/*.go: Review the Go code, point out issues relative to principles of clean code, expressiveness, and performance.

x/crosschain/keeper/grpc_query_cctx_test.go (1)

Pattern **/*.go: Review the Go code, point out issues relative to principles of clean code, expressiveness, and performance.

Additional comments not posted (3)

x/crosschain/keeper/grpc_query_cctx.go (2)

23-24: LGTM!

The constant DefaultPageSize is well-named and follows the Go naming convention. The value of 100 is a reasonable default for pagination.

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51-56: Excellent handling of pagination!

The code segment correctly initializes the pagination when it is not provided in the request and sets a default limit when the specified limit is 0. This ensures a robust pagination behavior and prevents potential issues with unbounded queries.

The code is clear, concise, and follows best practices for handling pagination in gRPC queries.

x/crosschain/keeper/grpc_query_cctx_test.go (1)

293-328: LGTM!

The TestKeeper_CctxAll function is a well-structured and comprehensive test for the CctxAll method. It covers important scenarios related to pagination, including empty requests, default page size, and custom page size.

The sub-tests are focused, have clear descriptions, and make specific assertions about the expected behavior. The use of helper functions for test setup improves readability and maintainability.

Overall, this test function enhances the test coverage for the CctxAll method and ensures that it behaves correctly under various pagination-related conditions.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.94%. Comparing base (1929ff6) to head (2474213).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #2871   +/-   ##
========================================
  Coverage    66.93%   66.94%           
========================================
  Files          373      373           
  Lines        21028    21032    +4     
========================================
+ Hits         14076    14080    +4     
  Misses        6288     6288           
  Partials       664      664           

Files with missing lines	Coverage Δ
x/crosschain/keeper/grpc_query_cctx.go	91.66% <100.00%> (+0.36%)	⬆️