Apex test execution, coverage analysis, and test-fix loops with 120-point scoring. Use when the user needs to run Apex tests, check code coverage, fix failing tests, or work with *Test.cls / *_Test.cls files. TRIGGER when: user runs Apex tests, checks code coverage, fixes failing tests, or touches *

platform apex test run: Salesforce Test Execution & Coverage Analysis Use this skill when the user needs Apex test execution and failure analysis : running tests, checking coverage, interpreting failures, improving coverage, and managing a disciplined test fix loop for Salesforce code. When This Skill Owns the Task Use platform apex test run when the work involves: sf apex run test workflows Apex unit test failures code coverage analysis identifying uncovered lines and missing test scenarios structured test fix loops for Apex code Delegate elsewhere when the user is: writing or refactoring production Apex → platform apex generate skill testing Agentforce agents → agentforce test skill testing LWC with Jest → [experience lwc generate](../experience lwc generate/SKILL.md) Required Context to Gather First Ask for or infer: target org alias desired test scope: single class, specific methods, suite, or local tests coverage threshold expectation whether the user wants diagnosis only or a test fix loop whether related test data factories already exist Recommended Workflow 1. Discover test scope Identify: existing test classes target production classes test data factories / setup helpers 2. Run the smallest useful test set first Start narrow when debugging a failure; widen only after the fix is stable. 3. Analyze results Focus on: failing methods exception types and stack traces uncovered lines / weak coverage areas whether failures indicate bad test data, brittle assertions, or broken production logic 4. Run a disciplined fix loop When the issue is code or test quality: delegate code fixes to platform apex generate skill when needed add or improve tests rerun focused tests before broader regression 5. Improve coverage intentionally Cover: positive path negative / exception path bulk path (251+ records where appropriate) callout or async path when relevant High Signal Rules Rule Rationale Default to SeeAllData=false Ensures test isolation; prevents reliance on org specific data Every test must assert meaningful outcomes Tests with no assertions prove nothing and give false confidence Test bulk behavior with 251+ records Triggers process in batches of 200; 251 records crosses the boundary Use factories / @TestSetup when they improve clarity Consistent data creation in one place; rolled back between test methods Pair Test.startTest() with Test.stopTest() for async Ensures async operations (queueable, future) complete before assertions Do not hide flaky org dependencies inside tests Prevents intermittent failures tied to org state Gotchas Issue Resolution Test passes locally but fails in CI org Check for SeeAllData=true or undeclared dependencies on org specific records Coverage drops unexpectedly after refactor Run focused class level tests first, then widen to RunLocalTests to confirm "Uncommitted work pending" error in callout test DML and HTTP callouts cannot be mixed in the same test context without Test.startTest() wrapping Mock not taking effect in test Ensure Test.setMock() is called before the code that makes the callout @TestSetup data missing in test method @TestSetup data is committed per test method — re query it; do not store in static variables API version 67.0 and higher without necessary access level checks Check failing SOQL/DML stack traces for CRUD/FLS access errors, using System.runAs with an assigned permission set when user mode behavior is intended, or documenting a justified SYSTEM MODE path when system access is required Output Format When finishing, report in this order: 1. What tests were run 2. Pass/fail summary 3. Coverage result 4. Root cause findings 5. Fix or next run recommendation Suggested shape: Cross Skill Integration Need Delegate to Reason Fix production code or author test classes platform apex generate skill Code generation and repair Create bulk / edge case test data [platform data manage](../platform data manage/SKILL.md) Realistic test datasets Deploy updated tests to org [platform metadata deploy](../platform metadata deploy/SKILL.md) Deployment workflows Inspect detailed runtime logs [platform apex logs debug](../platform apex logs debug/SKILL.md) Deeper failure analysis Reference File Index File When to read references/cli commands.md All sf apex run test command flags, output formats, async execution, and coverage commands references/test patterns.md Test class templates — basic, bulk (251+), mock callout, and data factory patterns references/testing best practices.md Core testing principles — AAA pattern, naming conventions, bulk, negative, and mock strategies references/test fix loop.md Agentic test fix loop implementation and failure analysis decision tree references/mocking patterns.md HttpCalloutMock, DML mocking, StubProvider, and selector mocking patterns references/performance optimization.md Techniques to reduce test execution time — DML mocking, SOQL mocking, loop optimizations assets/basic test.cls Template: standard test class with @TestSetup , positive / negative / bulk / edge case methods assets/bulk test.cls Template: bulk test with 251+ records that crosses the 200 record trigger batch boundary assets/mock callout test.cls Template: HTTP callout mock using HttpCalloutMock assets/test data factory.cls Template: reusable TestDataFactory with create and insert helpers assets/dml mock.cls Template: IDML interface + DMLMock implementation for database free unit tests assets/stub provider example.cls Template: StubProvider based dependency injection stub scripts/parse test results.py Post tool hook — parses sf apex run test JSON output and formats failures for the auto fix loop Score Guide Score Meaning 108+ strong production grade test confidence 96–107 good test suite with minor gaps 84–95 acceptable but strengthen coverage / assertions < 84 below standard; revise before relying on it

platform-apex-test-run