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Added AI-generated Test methods/Test classes using Cursor AI for module hdfs-agent [ranger-hdfs-plugin] and manually reviewed.

What changes were proposed in this pull request?

RANGER-5344: Test Cases for hdfs-agent [ranger-hdfs-plugin] Module

How was this patch tested?

Build successful along with test cases.

As per Jacoco
Apache -> hdfs-agent [ranger-hdfs-plugin] Module

Improved Jacoco coverage across multiple packages:

hdfs-agent [ranger-hdfs-plugin] module: 39% → 72%

@bhaveshamre
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Hello @kumaab ,

Requesting review for RANGER-5344 (#690). This PR adds AI-assisted (Cursor AI) test cases for the hdfs-agent [ranger-hdfs-plugin] module, manually reviewed, and improves Jacoco coverage from 39% to 72%. Build and tests are passing. Feedback is appreciated.

@dhavalshah9131 dhavalshah9131 marked this pull request as ready for review October 24, 2025 13:37
@mneethiraj mneethiraj requested a review from Copilot October 31, 2025 15:39
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Pull Request Overview

This PR adds comprehensive test coverage for the hdfs-agent [ranger-hdfs-plugin] module using AI-generated test methods that were manually reviewed. The changes aim to improve Jacoco coverage from 39% to 72% by adding unit tests for multiple packages within the module.

  • Added extensive unit test classes for HDFS client, resource management, connection management, and authorization components
  • Added new test dependencies (mockito-inline and mockito-junit-jupiter) to support advanced mocking capabilities
  • Updated existing test files to use JUnit 5 assertions and annotations while maintaining backward compatibility

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 5 comments.

Show a summary per file
File Description
TestHdfsResourceMgr.java New comprehensive test class for HdfsResourceMgr with 8 test methods covering various scenarios
TestHdfsConnectionMgr.java New test class for HdfsConnectionMgr covering cache operations and connection management
HdfsClientTest.java Extended existing test class with 18 additional JUnit 5 test methods for validation and connection testing
TestRangerServiceHdfs.java New test class for RangerServiceHdfs covering configuration validation and resource lookup
RangerHdfsAuthorizerTest.java Updated existing test with JUnit 5 annotations and disabled problematic tests
HDFSRangerTest.java Updated with JUnit 5 annotations and modernized assertions
TestRangerAccessControlException.java New simple test class for exception handling
TestRangerAccessControlEnforcer.java New comprehensive test class with 12 test methods covering access control enforcement
pom.xml Added mockito-inline and mockito-junit-jupiter dependencies for advanced testing

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IOUtils.copy(in, output);

String content = new String(output.toByteArray());
String content = output.toString();
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Using ByteArrayOutputStream.toString() without specifying charset is deprecated and may cause encoding issues. Consider using output.toString(StandardCharsets.UTF_8) for explicit charset handling.

Copilot uses AI. Check for mistakes.
IOUtils.copy(in, output);

String content = new String(output.toByteArray());
String content = output.toString();
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Copilot AI Oct 31, 2025

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Using ByteArrayOutputStream.toString() without specifying charset is deprecated and may cause encoding issues. Consider using output.toString(StandardCharsets.UTF_8) for explicit charset handling.

Copilot uses AI. Check for mistakes.
IOUtils.copy(in, output);

String content = new String(output.toByteArray());
String content = output.toString();
Copy link

Copilot AI Oct 31, 2025

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Using ByteArrayOutputStream.toString() without specifying charset is deprecated and may cause encoding issues. Consider using output.toString(StandardCharsets.UTF_8) for explicit charset handling.

Copilot uses AI. Check for mistakes.
IOUtils.copy(in, output);

String content = new String(output.toByteArray());
String content = output.toString();
Copy link

Copilot AI Oct 31, 2025

Choose a reason for hiding this comment

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Using ByteArrayOutputStream.toString() without specifying charset is deprecated and may cause encoding issues. Consider using output.toString(StandardCharsets.UTF_8) for explicit charset handling.

Copilot uses AI. Check for mistakes.
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