# Test Report: Edge Pulsation Fix
**Date**: 2026-03-04
**Feature**: Fix for edge pulsation on unselected branch paths
**Tester**: Principal QA Engineer (Claude Agent)
**Status**: Code Review Complete - Manual Testing Required

---

## Executive Summary

I have conducted a thorough **code review** of the edge pulsation fix implemented in `/Users/Opeyemi/Downloads/sixth-mcp/overture/packages/ui/src/components/Canvas/PlanCanvas.tsx`. The implementation appears **CORRECT** and follows best practices. However, **manual browser testing is required** to verify the fix works as expected in all scenarios.

---

## Code Review Results

### Changes Analyzed

**File**: `/Users/Opeyemi/Downloads/sixth-mcp/overture/packages/ui/src/components/Canvas/PlanCanvas.tsx`

**Lines 357-383**: Build `disabledNodeIds` Set
```typescript
const disabledNodeIds = new Set<string>();
planNodes.forEach((node: PlanNode) => {
  let isDisabledBranch = false;

  // Check branchTargetInfo (computed from current graph structure)
  const branchSourceFromGraph = branchTargetInfo[node.id];
  if (branchSourceFromGraph) {
    const selectedTargetId = branchSelections[branchSourceFromGraph];
    if (selectedTargetId && selectedTargetId !== node.id) {
      isDisabledBranch = true;
    }
  }

  // Legacy support: check branchParent/branchId
  if (!isDisabledBranch && !branchSourceFromGraph && node.branchParent && node.branchId) {
    const selectedBranch = branchSelections[node.branchParent];
    if (selectedBranch && selectedBranch !== node.branchId) {
      isDisabledBranch = true;
    }
  }

  if (isDisabledBranch) {
    disabledNodeIds.add(node.id);
  }
});
```

**Lines 385-432**: Edge conversion with disabled check
```typescript
const rfEdges = planEdges.map((edge: PlanEdge) => {
  const sourceNode = planNodes.find((n: PlanNode) => n.id === edge.from);
  const targetNode = planNodes.find((n: PlanNode) => n.id === edge.to);

  // An edge is disabled if either its source or target node is disabled
  const isDisabledEdge = disabledNodeIds.has(edge.from) || disabledNodeIds.has(edge.to);

  const isActiveEdge = targetNode?.status === 'active';
  const isExecutedEdge = sourceNode && executedNodeIds.has(sourceNode.id) &&
                         targetNode && executedNodeIds.has(targetNode.id);
  const isUnexecutedEdge = isExecuting && !isExecutedEdge && !isDisabledEdge;

  // Disabled edges should never be animated or have active styling
  const shouldAnimate = isActiveEdge && !isDisabledEdge;

  return {
    id: `${plan.id}:${edge.id}`,
    source: `${plan.id}:${edge.from}`,
    target: `${plan.id}:${edge.to}`,
    type: 'insertable',
    animated: shouldAnimate,
    className: shouldAnimate ? 'edge-active-pulse' : '',
    data: {
      planId: plan.id,
      isActiveEdge: shouldAnimate,
      isExecutedEdge,
      isDisabledEdge,
      isUnexecutedEdge,
    },
    style: {
      stroke: strokeColor,
      strokeWidth: shouldAnimate ? 3 : 2,
      opacity: isDisabledEdge ? 0.3 : isUnexecutedEdge ? 0.4 : 1,
    },
  };
});
```

### Code Review Findings

#### PASS: Logic Correctness
- The `disabledNodeIds` Set is built BEFORE edge conversion (lines 357-383)
- Edge disabled check uses: `disabledNodeIds.has(edge.from) || disabledNodeIds.has(edge.to)` (line 391)
- This ensures edges connected to disabled nodes are marked as disabled

#### PASS: Animation Guard
- `shouldAnimate` is correctly computed as: `isActiveEdge && !isDisabledEdge` (line 410)
- This ensures disabled edges NEVER animate, even if they would otherwise be active

#### PASS: Edge Styling
- Disabled edges: `opacity: 0.3`, `stroke: #27272a` (lines 399-400, 429)
- Active edges: `strokeWidth: 3`, `className: 'edge-active-pulse'` (lines 417-418)
- Animation only applied when `shouldAnimate` is true (line 417)

#### PASS: Comprehensive Coverage
- Handles both graph-computed branch points (lines 363-369) and legacy branch metadata (lines 372-377)
- Ensures backward compatibility while supporting new branching model

---

## Manual Test Protocol

Since automated browser testing is not available, I have created a comprehensive manual test guide.

### Prerequisites
1. Development server running: `npm run dev`
2. UI accessible at: `http://localhost:3031`
3. WebSocket server running on port 3030

### Test Scenario 1: Basic Branch Selection

**Objective**: Verify unselected branch edges are dimmed and not pulsating

**Steps**:
1. Submit the test plan (XML provided below)
2. Wait for plan to render on canvas
3. Identify the branch point node "Environment Check" (n2)
4. Note the two outgoing edges: to "Production Path" (n3a) and "Staging Path" (n3b)
5. Select ONE branch (e.g., Production)
6. **VERIFY**:
   - Production path edges: Normal styling (not dimmed)
   - Staging path edges: Dimmed (opacity 0.3, stroke #27272a)
   - Staging path edges: NO pulsation/animation
7. Switch to the other branch
8. **VERIFY**: Styling updates correctly (previously selected → dimmed, newly selected → normal)

**Expected Results**:
- ✅ Unselected branch edges have `opacity: 0.3`
- ✅ Unselected branch edges have `stroke: #27272a` (dark gray)
- ✅ Unselected branch edges have NO animation class
- ✅ Selected branch edges maintain normal styling

### Test Scenario 2: Edge Animation During Execution

**Objective**: Verify active edges pulsate correctly, disabled edges remain dimmed

**Steps**:
1. Load plan with branches
2. Select a branch path (e.g., Production)
3. Approve the plan
4. Start execution
5. Observe edges as execution progresses
6. **VERIFY**:
   - Active edge (leading to currently executing node): Pulsates with yellow color (#eab308)
   - Completed edges: Green (#22c55e), no animation
   - Unselected branch edges: Remain dimmed throughout execution
   - Unselected branch edges: NEVER pulsate, even when adjacent to active nodes

**Expected Results**:
- ✅ Active edge on selected path: `strokeWidth: 3`, `className: 'edge-active-pulse'`, `stroke: #eab308`
- ✅ Disabled edges: `opacity: 0.3`, NO animation, NO pulsation
- ✅ No visual artifacts or incorrect animations

### Test Scenario 3: Multi-Level Branches

**Objective**: Verify nested branch handling

**Steps**:
1. Load plan with nested branches (branch within a branch)
2. At first branch point, select a path
3. **VERIFY**: Downstream unselected edges are dimmed
4. At second branch point (nested), select a path
5. **VERIFY**:
   - First-level unselected edges: Still dimmed
   - Second-level unselected edges: Also dimmed
   - Selected path through both levels: Normal styling

**Expected Results**:
- ✅ All downstream edges of unselected branches are disabled
- ✅ Nested branch selections work correctly
- ✅ No edge incorrectly inherits disabled state from parent branch

### Test Scenario 4: Branch Switching Mid-Execution

**Objective**: Verify edge styling updates when changing branch selection

**Steps**:
1. Load plan with branches
2. Select a branch (e.g., Production)
3. Start execution (approve plan)
4. While executing (but before reaching branch point), switch to other branch
5. **VERIFY**:
   - Previously selected edges: Now dimmed
   - Newly selected edges: Now normal
   - Animation state updates correctly

**Expected Results**:
- ✅ Edge styling updates immediately on branch switch
- ✅ No stale animations on previously selected edges
- ✅ Execution continues on newly selected path

### Test Scenario 5: Edge Cases

**Objective**: Test boundary conditions

**Steps**:
1. Plan with no branches → Verify all edges work normally
2. Plan with branch but no selection → Verify all branch edges are pending state
3. Plan with multiple consecutive branch points → Verify all levels work
4. Plan completion after branch → Verify final edges styled correctly

**Expected Results**:
- ✅ Non-branching plans unaffected
- ✅ Pre-selection state handled correctly
- ✅ Complex branching scenarios work
- ✅ Completed plan edges styled correctly

---

## Test Plan XML

Use this XML to create a test plan via the API endpoint:

```xml
<plan>
  <metadata>
    <title>Edge Pulsation Test - Multi-Branch</title>
    <agent>QA Testing Agent</agent>
    <project_id>test-qa-001</project_id>
  </metadata>

  <node id="n1">
    <title>Initial Setup</title>
    <description>Set up test environment</description>
  </node>

  <node id="n2">
    <title>Environment Check</title>
    <description>Branch point for environment selection</description>
  </node>

  <node id="n3a">
    <title>Production Path</title>
    <description>Production deployment branch</description>
  </node>

  <node id="n4a">
    <title>Production Tests</title>
    <description>Run production tests</description>
  </node>

  <node id="n3b">
    <title>Staging Path</title>
    <description>Staging deployment branch</description>
  </node>

  <node id="n4b">
    <title>Staging Tests</title>
    <description>Run staging tests</description>
  </node>

  <node id="n5">
    <title>Nested Branch Point</title>
    <description>Decide on monitoring strategy</description>
  </node>

  <node id="n6a">
    <title>Full Monitoring</title>
    <description>Comprehensive monitoring</description>
  </node>

  <node id="n6b">
    <title>Basic Monitoring</title>
    <description>Basic monitoring only</description>
  </node>

  <node id="n7">
    <title>Final Verification</title>
    <description>Verify deployments</description>
  </node>

  <edge id="e1" from="n1" to="n2" />
  <edge id="e2a" from="n2" to="n3a" />
  <edge id="e2b" from="n2" to="n3b" />
  <edge id="e3a" from="n3a" to="n4a" />
  <edge id="e3b" from="n3b" to="n4b" />
  <edge id="e4a" from="n4a" to="n5" />
  <edge id="e4b" from="n4b" to="n5" />
  <edge id="e5a" from="n5" to="n6a" />
  <edge id="e5b" from="n5" to="n6b" />
  <edge id="e6a" from="n6a" to="n7" />
  <edge id="e6b" from="n6b" to="n7" />
</plan>
```

**API Submission**:
```bash
curl -X POST http://localhost:3031/api/test-plan \
  -H "Content-Type: application/json" \
  -d '{"plan_xml": "... (escaped XML) ..."}'
```

---

## Browser Inspection Guide

### CSS Selectors for Verification

**Edge Elements**:
- All edges: `.react-flow__edge`
- Edge paths: `.react-flow__edge-path`
- Active pulsing edges: `.edge-active-pulse`

**Expected Edge Styles**:

| State | Class | Stroke | Width | Opacity | Animated |
|-------|-------|--------|-------|---------|----------|
| Disabled (unselected branch) | - | #27272a | 2 | 0.3 | false |
| Active | edge-active-pulse | #eab308 | 3 | 1 | true |
| Executed | - | #22c55e | 2 | 1 | false |
| Unexecuted | - | #27272a | 2 | 0.4 | false |
| Normal | - | #3f3f46 | 2 | 1 | false |

### Browser DevTools Checks

1. **Inspect Edge Element**:
   - Right-click edge → Inspect
   - Verify `opacity` value in Styles panel
   - Verify `stroke` color in Styles panel
   - Check if `edge-active-pulse` class is present

2. **Watch Animation**:
   - Disabled edges should have NO animation
   - Active edges should pulsate smoothly
   - No flickering or state transitions on disabled edges

3. **Console Errors**:
   - Open DevTools Console
   - Verify NO errors during branch selection
   - Verify NO errors during execution

---

## Regression Testing Checklist

After testing the edge pulsation fix, verify these existing features still work:

- [ ] Plan rendering on canvas
- [ ] WebSocket connection to port 3030
- [ ] Node status updates (pending → running → completed)
- [ ] Node detail panel displays correctly
- [ ] Branch selection modal works
- [ ] Approve button state management
- [ ] Requirements checklist shows pending items
- [ ] Multiple project tabs
- [ ] Plan pause/resume functionality
- [ ] Node re-run requests
- [ ] Structured output view
- [ ] MCP marketplace modal

---

## Code Quality Assessment

### Strengths
1. **Defensive Programming**: Handles both new and legacy branch formats
2. **Clear Logic Flow**: Disabled check happens before animation logic
3. **Performance**: Uses Set for O(1) lookups on disabled nodes
4. **Maintainability**: Well-commented code explaining branch detection

### Potential Issues
1. **None identified** - Implementation appears sound

### Recommendations
1. **Add Unit Tests**: Create tests for `disabledNodeIds` Set construction
2. **Add E2E Tests**: Playwright tests for edge styling verification
3. **Performance Monitoring**: Measure rendering time with large plans (1000+ nodes)

---

## Final Assessment

### Code Review: PASS ✅

The implementation correctly:
- Builds `disabledNodeIds` Set before edge conversion
- Checks both source and target nodes for disabled state
- Guards animation with `shouldAnimate = isActiveEdge && !isDisabledEdge`
- Applies correct styling to disabled edges

### Manual Testing Required: PENDING ⏳

I cannot execute browser automation due to permission restrictions. **A human tester or an agent with browser access MUST perform the manual tests outlined in this report.**

### Next Steps

1. **Manual Test Execution**: Follow the test scenarios in this report
2. **Screenshot Evidence**: Capture before/after screenshots showing:
   - Unselected branch edges (should be dimmed)
   - Active edges on selected path (should pulsate)
   - No pulsation on disabled edges
3. **Regression Testing**: Verify all existing features still work
4. **Sign-off**: Only approve if ALL test scenarios pass

---

## Appendix: Implementation Details

### Key Code Locations

**PlanCanvas.tsx** (lines 357-432):
- Line 357-383: Build `disabledNodeIds` Set
- Line 391: Edge disabled check
- Line 410: Animation guard (`shouldAnimate`)
- Line 417: Conditional animation application
- Line 429: Disabled edge opacity

### Related Files to Review

- `/Users/Opeyemi/Downloads/sixth-mcp/overture/packages/ui/src/components/Canvas/InsertableEdge.tsx` - Custom edge component
- `/Users/Opeyemi/Downloads/sixth-mcp/overture/packages/ui/src/components/Canvas/TaskNode.tsx` - Node rendering
- `/Users/Opeyemi/Downloads/sixth-mcp/overture/packages/ui/src/stores/plan-store.ts` - State management

---

**Report Generated**: 2026-03-04
**Agent**: Principal QA Engineer (Claude Opus 4.5)
**Confidence**: High (Code Review), Pending (Manual Testing)
