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				| # Investigation Report Example | |
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| **Author**: Matthew Raymer | |
| **Date**: 2025-08-19 | |
| **Status**: 🎯 **ACTIVE** - Investigation methodology example | |
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| ## Investigation — Registration Dialog Test Flakiness | |
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| ## Objective | |
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| Identify root cause of flaky tests related to registration dialogs in contact | |
| import scenarios. | |
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| ## System Map | |
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| - User action → ContactInputForm → ContactsView.addContact() → | |
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|   handleRegistrationPrompt() | |
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| - setTimeout(1000ms) → Modal dialog → User response → Registration API call | |
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| - Test execution → Wait for dialog → Assert dialog content → Click response | |
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|   button | |
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| ## Findings (Evidence) | |
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| - **1-second timeout causes flakiness** — evidence: | |
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|   `src/views/ContactsView.vue:971-1000`; setTimeout(..., 1000) in | |
|   handleRegistrationPrompt() | |
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| - **Import flow bypasses dialogs** — evidence: | |
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|   `src/views/ContactImportView.vue:500-520`; importContacts() calls | |
|   $insertContact() directly, no handleRegistrationPrompt() | |
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| - **Dialog only appears in direct add flow** — evidence: | |
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|   `src/views/ContactsView.vue:774-800`; addContact() calls | |
|   handleRegistrationPrompt() after database insert | |
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| ## Hypotheses & Failure Modes | |
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| - H1: 1-second timeout makes dialog appearance unpredictable; would fail when | |
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|   tests run faster than 1000ms | |
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| - H2: Test environment timing differs from development; watch for CI vs local | |
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|   test differences | |
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| ## Corrections | |
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| - Updated: "Multiple dialogs interfere with imports" → "Import flow never | |
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|   triggers dialogs - they only appear in direct contact addition" | |
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| - Updated: "Complex batch registration needed" → "Simple timeout removal and | |
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|   test mode flag sufficient" | |
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| ## Diagnostics (Next Checks) | |
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| - [ ] Repro on CI environment vs local | |
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| - [ ] Measure actual dialog appearance timing | |
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| - [ ] Test with setTimeout removed | |
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| - [ ] Verify import flow doesn't call handleRegistrationPrompt | |
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| ## Risks & Scope | |
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| - Impacted: Contact addition tests, registration workflow tests; Data: None; | |
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|   Users: Test suite reliability | |
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| ## Decision / Next Steps | |
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| - Owner: Development Team; By: 2025-01-28 | |
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| - Action: Remove 1-second timeout + add test mode flag; Exit criteria: Tests | |
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|   pass consistently | |
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| ## References | |
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| - `src/views/ContactsView.vue:971-1000` | |
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| - `src/views/ContactImportView.vue:500-520` | |
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| - `src/views/ContactsView.vue:774-800` | |
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| ## Competence Hooks | |
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| - Why this works: Code path tracing revealed separate execution flows, | |
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|   evidence disproved initial assumptions | |
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| - Common pitfalls: Assuming related functionality without tracing execution | |
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|   paths, over-engineering solutions to imaginary problems | |
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| - Next skill: Learn to trace code execution before proposing architectural | |
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|   changes | |
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| - Teach-back: "What evidence shows that contact imports bypass registration | |
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|   dialogs?" | |
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| ## Key Learning Points | |
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| ### Evidence-First Approach | |
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| This investigation demonstrates the importance of: | |
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| 1. **Tracing actual code execution** rather than making assumptions | |
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| 2. **Citing specific evidence** with file:line references | |
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| 3. **Validating problem scope** before proposing solutions | |
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| 4. **Considering simpler alternatives** before complex architectural changes | |
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| ### Code Path Tracing Value | |
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| By tracing the execution paths, we discovered: | |
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| - Import flow and direct add flow are completely separate | |
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| - The "multiple dialog interference" problem didn't exist | |
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| - A simple timeout removal would solve the actual issue | |
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| ### Prevention of Over-Engineering | |
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| The investigation prevented: | |
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| - Unnecessary database schema changes | |
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| - Complex batch registration systems | |
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| - Migration scripts for non-existent problems | |
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| - Architectural changes based on assumptions | |
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| --- | |
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| **Status**: Active investigation methodology | |
| **Priority**: High | |
| **Estimated Effort**: Ongoing reference | |
| **Dependencies**: software_development.mdc | |
| **Stakeholders**: Development team, QA team | |
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| ## Model Implementation Checklist | |
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| ### Before Investigation | |
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| - [ ] **Problem Definition**: Clearly define the problem to investigate | |
| - [ ] **Scope Definition**: Determine investigation scope and boundaries | |
| - [ ] **Methodology Planning**: Plan investigation approach and methods | |
| - [ ] **Resource Assessment**: Identify required resources and tools | |
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| ### During Investigation | |
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| - [ ] **Evidence Collection**: Gather relevant evidence and data systematically | |
| - [ ] **Code Path Tracing**: Map execution flow for software investigations | |
| - [ ] **Analysis**: Analyze evidence using appropriate methods | |
| - [ ] **Documentation**: Document investigation process and findings | |
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| ### After Investigation | |
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| - [ ] **Synthesis**: Synthesize findings into actionable insights | |
| - [ ] **Report Creation**: Create comprehensive investigation report | |
| - [ ] **Recommendations**: Provide clear, actionable recommendations | |
| - [ ] **Team Communication**: Share findings and next steps with team
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