Feat/multiple match fields

[nil-malh]

📝 Description

This PR adds support for specifying multiple key/value pairs in the Then expected record based on schema should have fields matching from given value step, allowing users to validate multiple Avro fields in a single assertion instead of just one.

What changed:

• MatchContext (ktestify-core): Added a new matchKeyValues field (Map<String, String>) to carry multiple key/value pairs for multi-field inline matching.
• AvroFieldsRecordMatcher (ktestify-core): When matchKeyValues is non-empty, the matcher iterates over all key/value pairs and validates each against the actual Avro record. All pairs must match for the assertion to pass. The first mismatch (or all mismatches) are reported in the diff.
• Unit tests: Added a MultiFieldValue nested test class to AvroFieldsRecordMatcherTest covering all-fields-match, one-field-mismatch, all-fields-mismatch, and single-entry cases. Added ctxWithKeyValues helper to MatcherTestSupport.

Usage example:

Then expected record based on schema should have fields matching from given value
  | topicAlias | keys                    | values         |
  | solver-out | batchId;taskId | 0;99             |

This validates that batchId == 0 and taskId == 99.
The existing single-field syntax (key/value columns) remains fully supported and unchanged.

[github-actions]

📋 Unreleased Changelog Preview

This is what the next release notes will look like based on commits in this PR.

Changelog

All notable changes to this project will be documented in this file.

[Unreleased]

✨ Features

• Add multi-field inline matching support in AvroFieldsRecordMatcher

• Add multi-field inline matching support in AvroFieldsRecordMatcher

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Generated by git-cliff

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🔄 Run #146 · Sun, 20 Sep 2026 21:09:53 GMT

[github-actions]

✅ Test Results

	Metric	Count
✅	Passed	724
❌	Failed	0
⏭️	Skipped	0
📊	Total	724

✅ Coverage

	Type	Coverage	Covered / Total
📏	Lines	83.9%	1893 / 2256
🌿	Branches	73.1%	592 / 810
🔧	Methods	84.7%	388 / 458

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🔄 CI run #165 · Sun, 20 Sep 2026 21:13:11 GMT