AIML-231: Phase 2 code quality improvements [STACKED] #30

ChrisEdwards · 2025-11-13T06:12:15Z

✅ Rebased onto main after PR #29 merged (2025-11-14 15:28:06 UTC)

Why

This PR continues the code quality initiative started in AIML-230 (PR #29), focusing on test quality improvements. After establishing core coding standards (Spotless, var usage, explicit imports), this phase addresses test maintainability through modern testing best practices.

Problem Statement:

Test assertions used verbose JUnit syntax, making test failures harder to understand
Integration tests mixed System.out with production logging, creating noise in test output
Mock object syntax was inconsistent between Mockito 4.x and 5.x patterns

What

This PR delivers three key test quality improvements:

AssertJ Migration (~894 assertions): Converted all JUnit assertions to AssertJ's fluent API for better readability and error messages
Test Logging Standardization: Replaced System.out/err with SLF4J logging in integration tests
Mock Syntax Standardization: Adopted Mockito 5.x simplified mock() syntax throughout test codebase

All changes maintain 100% test coverage with 250 passing tests (unit + integration).

Note: This PR also includes documentation updates to CLAUDE.md for internal AI-assisted development workflow tracking. These workflow additions are internal development process documentation and not part of the MCP server product itself.

How

1. AssertJ Library Integration (mcp-a9j)

Implementation:

Added assertj-core:3.27.6 dependency to pom.xml (test scope)
Converted assertions across 20 test files following consistent patterns:
- assertEquals(expected, actual) → assertThat(actual).isEqualTo(expected)
- assertTrue(condition) → assertThat(condition).isTrue()
- assertNull(value) → assertThat(value).isNull()
- assertThrows() → assertThatThrownBy().isInstanceOf()

Benefits:

Fluent, readable test syntax: assertThat(vulns).hasSize(10).allMatch(v -> v.severity() != null)
Better failure messages: "Expecting size: 5 but was: 3" vs JUnit's "expected 5 but was 3"
Rich assertion API: isEmpty(), contains(), hasSize(), extracting() for complex validations

Example transformation:

// Before (JUnit)
assertEquals(5, vulnerabilities.size());
assertTrue(vulnerabilities.get(0).getSeverity().equals("CRITICAL"));
assertNull(error);

// After (AssertJ)
assertThat(vulnerabilities)
    .hasSize(5)
    .first()
    .extracting(VulnLight::severity)
    .isEqualTo("CRITICAL");
assertThat(error).isNull();

2. Test Logging Standardization (mcp-f7r)

Implementation:

Added @Slf4j annotation to 3 integration test classes
Converted all System.out.println() to log.info()
Converted all System.err.println() to log.error()
Used parameterized logging for performance: log.info("Found {} vulns", count)

Benefits:

Consistent logging configuration across production and test code
Better log management (can filter/control test logging separately)
Cleaner test output (no mixed streams)

Files updated:

AssessServiceIntegrationTest.java
SCAServiceIntegrationTest.java
RouteCoverageServiceIntegrationTest.java

3. Mock Syntax Modernization (mcp-ea6)

Implementation:

Updated CLAUDE.md coding standards with simplified mock() guidance
Converted 34 mock instantiations across 5 test files
Pattern: ClassName mock = mock(); instead of ClassName mock = mock(ClassName.class);

Why this matters:

Mockito 5.x type inference eliminates boilerplate
More concise: ContrastSDK sdk = mock(); vs ContrastSDK sdk = mock(ContrastSDK.class);
When using var: ClassName mock = mock(); (explicit type) vs var mock = mock(ClassName.class);

Files updated:

ADRServiceTest.java (1 change)
SCAServiceTest.java (5 changes)
VulnerabilityMapperTest.java (18 changes)
AssessServiceTest.java (8 changes)
RouteCoverageServiceTest.java (2 changes)

4. Internal Development Workflow Documentation

Added AI-assisted development time tracking workflow to CLAUDE.md for internal use. This tracks development time and AI effectiveness to optimize development processes. This is internal tooling documentation only - not part of the MCP server product.

Step-by-Step Walkthrough

Phase 1: AssertJ Migration

Dependency addition (pom.xml:177-182): Added assertj-core with test scope
Import updates (20 test files): Changed from org.junit.jupiter.api.Assertions to org.assertj.core.api.Assertions
Assertion conversion (~894 changes): Methodically converted each assertion type while maintaining test semantics
Compilation fixes: Resolved any method signature differences (e.g., assertThrows parameter order)

Phase 2: Test Logging

Lombok annotation (3 integration test files): Added @Slf4j to gain access to log field
System.out replacement: All println calls → log.info() with parameterized messages
System.err replacement: All error prints → log.error() with exception contexts

Phase 3: Mock Modernization

Documentation (CLAUDE.md:84): Added coding standard for simplified mock() usage
Test updates (5 test files): Converted 34 mock declarations to simplified syntax
Verification: Ensured all tests still compile and pass with new syntax

Phase 4: Internal Workflow Documentation

Time tracking workflow (CLAUDE.md:134-221): Complete documentation of timestamp recording, duration calculation, and effectiveness rating process for internal AI development optimization

Testing

Test Results:

Tests run: 250
Failures: 0
Errors: 0
Skipped: 0

Verification performed:

Full test suite: mvn clean verify ✅
Code formatting: mvn spotless:check ✅
Integration tests: All pass with new logging ✅
Mock syntax: All tests compile and run ✅

Test coverage maintained:

Unit tests: 244 tests, 100% passing
Integration tests: 6 tests, 100% passing
No behavioral changes - purely quality improvements

Benefits Achieved

Better readability: Fluent assertion syntax reads like natural language
Better debugging: AssertJ provides clearer failure messages with actual vs expected values
Consistency: All tests now use the same assertion style and logging approach
Professional logging: Integration tests use proper logging framework
Maintainability: Clear coding standards documented for future development
Modern patterns: Adopted latest Mockito best practices

Related Work

Builds on AIML-230 (PR #29):

Spotless Maven plugin (Google Java Format)
var keyword adoption (549 replacements)
Explicit imports (no wildcards)
Package spelling fix (sdkexstension → sdkextension)

Branch: AIML-231-phase-2-quality
Beads completed: mcp-a9j, mcp-f7r, mcp-ea6
Build status: ✅ All tests passing, code properly formatted

🤖 Generated with Claude Code

Co-Authored-By: Claude noreply@anthropic.com

Copilot

Pull Request Overview

This PR completes Phase 2 of code quality improvements by adopting modern Java testing best practices. Following Phase 1's formatting and style standards (PR #29), this phase focuses on enhancing test code with AssertJ library adoption, proper logging, and documentation of simplified Mockito syntax.

Key Changes:

Migrated all 894 JUnit assertions across 20 test files to AssertJ's fluent API for improved readability
Replaced System.out/System.err with SLF4J logging in integration tests
Documented Mockito 5.x+ simplified mock() syntax in coding standards

Reviewed Changes

Copilot reviewed 22 out of 22 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
pom.xml	Added assertj-core 3.27.6 test dependency
CLAUDE.md	Added coding standards for AssertJ and simplified mock() syntax
20 test files	Converted all assertions from JUnit to AssertJ fluent API
4 integration test files	Added @slf4j annotation and replaced System.out/err with logging
VulnerabilityMapperTest.java, SCAServiceTest.java, RouteCoverageServiceTest.java, ADRServiceTest.java	Applied simplified mock() syntax

Comments suppressed due to low confidence (1)

src/test/java/com/contrast/labs/ai/mcp/contrast/utils/PaginationHandlerTest.java:1

Consider using assertThat(params.warnings()).isEmpty() instead of assertThat(params.warnings().isEmpty()).isTrue(). AssertJ provides direct collection assertions that are more idiomatic and produce better error messages.

/*

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src/test/java/com/contrast/labs/ai/mcp/contrast/PaginationParamsTest.java

src/test/java/com/contrast/labs/ai/mcp/contrast/SCAServiceIntegrationTest.java

src/test/java/com/contrast/labs/ai/mcp/contrast/RouteCoverageServiceIntegrationTest.java

src/test/java/com/contrast/labs/ai/mcp/contrast/ADRServiceIntegrationTest.java

@slf4j

…231) - Add @slf4j annotation to 3 integration test classes - Convert all System.out.println() calls to log.info() - Convert all System.err.println() calls to log.error() - Use parameterized logging where appropriate for performance - Apply Spotless formatting This improves test logging consistency and enables better log management. Child bead: mcp-f7r 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

- Document simplified mock() standard in CLAUDE.md - Convert all 34 mock(Class.class) calls to mock() - Update 5 test files to use type-explicit mock syntax - Follow Mockito 5.x+ best practices Examples: Before: var mock = mock(ClassName.class) After: ClassName mock = mock() Before: ClassName mock = mock(ClassName.class) After: ClassName mock = mock() Files updated: - ADRServiceTest.java (1 change) - SCAServiceTest.java (5 changes) - VulnerabilityMapperTest.java (18 changes) - AssessServiceTest.java (8 changes) - RouteCoverageServiceTest.java (2 changes) All tests pass with simplified mock() syntax. Child bead: mcp-ea6 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

- Added assertj-core 3.27.6 dependency to pom.xml with test scope - Converted ~894 JUnit assertions to AssertJ fluent API across 20 test files - Updated imports from org.junit.jupiter.api.Assertions to org.assertj.core.api.Assertions - Applied conversion patterns: * assertEquals(expected, actual) → assertThat(actual).isEqualTo(expected) * assertTrue(condition) → assertThat(condition).isTrue() * assertFalse(condition) → assertThat(condition).isFalse() * assertNull(value) → assertThat(value).isNull() * assertNotNull(value) → assertThat(value).isNotNull() * assertThrows() → assertThatThrownBy().isInstanceOf() - Documented AssertJ usage standard in CLAUDE.md Coding Standards section - All 250 tests pass successfully Benefits: - More readable, fluent assertion syntax - Better error messages when tests fail - Richer assertion API (isEmpty(), hasSize(), contains(), etc.) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

Added comprehensive "Time Tracking for AI Cost Optimization" section to CLAUDE.md documenting the complete workflow for tracking time spent on beads to optimize AI development spend. Key features: - Comment-based time tracking with ⏱️ START/END markers - Label-based categorization for duration buckets and AI effectiveness - Parent vs child bead tracking strategies - Rating workflow with AI calculation and user confirmation - Analysis framework for identifying AI value patterns Workflow tracks: - Duration buckets: 0-15min, 15-30min, 30-60min, 1-2hr, 2hr+ - AI effectiveness: ai-multiplier, ai-helpful, ai-neutral, ai-friction - When to track: Parent beads (in_progress → PR), Child beads (start → close) Purpose: Identify which code change types benefit most from AI assistance and where AI adds friction vs value to optimize AI spend decisions. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

@slf4j

…rationTest (AIML-231) - Add @slf4j annotation to AssessServiceIntegrationTest - Convert all 62 remaining System.out.println() calls to log.info() - Apply Spotless formatting This completes the logging standardization work started in mcp-f7r, now covering all 4 integration test classes. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

- Use direct collection assertions (isEmpty() instead of .isEmpty().isTrue()) - Fix string concatenation in log statements (use SLF4J placeholders) - Use direct comparison methods (isNotNegative() instead of >= 0 .isTrue()) - Improves test readability and follows AssertJ/SLF4J best practices All 250 tests passing. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

Fixed remaining string concatenation issues in: - ADRServiceIntegrationTest (7 locations) - RouteCoverageServiceIntegrationTest (2 locations) All 250 tests passing. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

…IML-231) Address PR review feedback: 1. Convert string concatenation to parameterized logging in ADRServiceIntegrationTest - Line 190: Use log.error with parameter instead of string concatenation - Lines 284-287: Use log.info with parameters for rule count and app name 2. Remove tautological assertion at line 331 (assertThat(true).isTrue()) - Keep explanatory comment about test logic All 250 tests passing after changes. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

…L-231) Replace all string concatenation in log statements with SLF4J placeholders for better performance. String concatenation in logs is inefficient because the concatenation happens before checking if the log level is enabled. Changes: - Replace log.info("text " + var) with log.info("text {}", var) - Apply to all test methods: testEnvironmentsAndTagsArePopulated, testSessionMetadataIsPopulated, testVulnTagsWithSpacesHandledBySDK, testListVulnsByAppIdWithSessionMetadata, and testListVulnsByAppIdForLatestSession 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

Clarify the critical rebase step when promoting stacked PRs to avoid replaying commits that are already merged to main. This prevents conflicts and makes the promotion process smoother. Key improvements: - Emphasize using git rebase --onto instead of git rebase - Provide clear example with commit hashes - Explain how to identify the base commit - Add troubleshooting guidance 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

Remove two committed results-*.md files that should not be tracked. These are test result files similar to test-plan files and should remain local artifacts. Changes: - Removed results-list_vulns_by_app_and_metadata.md from tracking - Removed results-list_vulns_by_app_latest_session.md from tracking - Added results-*.md pattern to .gitignore 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

Remove stale backup test plan file that should not be committed. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

dougj-contrast · 2025-11-14T19:22:36Z

pom.xml

+		<dependency>
+			<groupId>org.assertj</groupId>
+			<artifactId>assertj-core</artifactId>
+			<version>3.27.6</version>


we use the <properties></properties> element to specify versions
example:

mcp-contrast/pom.xml

Line 30 in 2601c03

<spring-ai.version>1.0.1</spring-ai.version>

That is up next for fixing. https://contrast.atlassian.net/browse/AIML-237

dougj-contrast · 2025-11-14T19:51:18Z

src/test/java/com/contrast/labs/ai/mcp/contrast/RouteCoverageServiceTest.java

-import static org.junit.jupiter.api.Assertions.*;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.mockito.ArgumentMatchers.*;


there are still wildcard imports defined

Crap. I wonder if they came back in the merge issues I had. i'll address those too.

I added that to the same ticket https://contrast.atlassian.net/browse/AIML-237

dougj-contrast · 2025-11-14T19:53:47Z

pom.xml

+		<dependency>
+			<groupId>org.assertj</groupId>
+			<artifactId>assertj-core</artifactId>
+			<version>3.27.6</version>


we typically use the <properties></properties> element to specify versions.
example:

mcp-contrast/pom.xml

Line 30 in 2601c03

<spring-ai.version>1.0.1</spring-ai.version>

dougj-contrast · 2025-11-14T19:54:16Z

src/test/java/com/contrast/labs/ai/mcp/contrast/RouteCoverageServiceTest.java

-import static org.junit.jupiter.api.Assertions.*;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.mockito.ArgumentMatchers.*;


there are still wildcard imports here

Will be addressed in https://contrast.atlassian.net/browse/AIML-237

dougj-contrast · 2025-11-14T19:55:15Z

src/test/java/com/contrast/labs/ai/mcp/contrast/SCAServiceTest.java

-import static org.junit.jupiter.api.Assertions.*;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.mockito.ArgumentMatchers.*;


wildcard import

Will be addressed in https://contrast.atlassian.net/browse/AIML-237

ChrisEdwards requested a review from Copilot November 13, 2025 06:14

Copilot AI reviewed Nov 13, 2025

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ChrisEdwards mentioned this pull request Nov 14, 2025

AIML-226: Fix tool names exceeding Claude API 64-char limit #27

Merged

7 tasks

ChrisEdwards force-pushed the AIML-230-harden-coding-standards branch from 1f197f5 to 92062a4 Compare November 14, 2025 06:05

ChrisEdwards force-pushed the AIML-231-phase-2-quality branch from 5321490 to eee2440 Compare November 14, 2025 06:13

ChrisEdwards force-pushed the AIML-230-harden-coding-standards branch from 92062a4 to ac20aba Compare November 14, 2025 14:35

ChrisEdwards and others added 11 commits November 14, 2025 10:35

Remove .bak file (AIML-231)

7fb6b9b

🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

Document Jira status workflow: set to Ready to Deploy after PR merge

0a9469c

ChrisEdwards force-pushed the AIML-231-phase-2-quality branch from 0b45e7c to 0a9469c Compare November 14, 2025 15:35

ChrisEdwards changed the base branch from AIML-230-harden-coding-standards to main November 14, 2025 15:35

ChrisEdwards marked this pull request as ready for review November 14, 2025 15:36

ChrisEdwards and others added 3 commits November 14, 2025 10:45

Remove bak-tst-pln.md backup file

5ee536e

Remove stale backup test plan file that should not be committed. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>

ChrisEdwards requested review from JacobMagesHaskinsContrast and dougj-contrast November 14, 2025 15:59

JacobMagesHaskinsContrast approved these changes Nov 14, 2025

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dougj-contrast approved these changes Nov 14, 2025

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ChrisEdwards merged commit 5654fee into main Nov 14, 2025
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AIML-231: Phase 2 code quality improvements [STACKED] #30

AIML-231: Phase 2 code quality improvements [STACKED] #30

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Why

What

How

1. AssertJ Library Integration (mcp-a9j)

2. Test Logging Standardization (mcp-f7r)

3. Mock Syntax Modernization (mcp-ea6)

4. Internal Development Workflow Documentation

Step-by-Step Walkthrough

Phase 1: AssertJ Migration

Phase 2: Test Logging

Phase 3: Mock Modernization

Phase 4: Internal Workflow Documentation

Testing

Benefits Achieved

Related Work

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ChrisEdwards commented Nov 13, 2025 •

edited

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