leptos-shadcn-ui/docs/architecture/migration-guides/LEPTOS_V0.8_VERIFICATION_PLAN.md

🧪 Leptos v0.8 Compatibility Verification Plan

Comprehensive testing strategy to verify full Leptos v0.8 compatibility

🎯 Verification Goals

1. Compilation Verification - All components compile without errors
2. Runtime Verification - Components work correctly in browser
3. Signal Reactivity - Signal updates work properly
4. Event Handling - Event handlers function correctly
5. Attribute Binding - All attributes bind and update correctly
6. Integration Testing - Components work together in real applications

📋 Verification Checklist

Phase 1: Compilation Verification ✅

• cargo check --workspace passes
• All 46 components compile successfully
• No trait bound errors
• No attribute method errors

Phase 2: Unit Testing 🔄

• Run all component unit tests
• Verify signal reactivity in tests
• Test attribute binding in isolation
• Test event handling in isolation

Phase 3: Integration Testing 🔄

• Create test application with Leptos v0.8
• Test components in real browser environment
• Verify signal updates work in UI
• Test event handlers in browser
• Verify attribute changes reflect in DOM

Phase 4: Performance Testing 🔄

• Run performance audit on migrated components
• Compare performance with v0.5.0
• Verify no performance regressions

Phase 5: Edge Case Testing 🔄

• Test with complex signal combinations
• Test with dynamic attribute changes
• Test with rapid signal updates
• Test with nested components

🛠️ Verification Tools & Methods

1. Automated Testing

# Run all unit tests
cargo test --workspace

# Run specific component tests
cargo test -p leptos-shadcn-button
cargo test -p leptos-shadcn-input

# Run integration tests
cargo test --test integration_tests

2. Manual Testing Application

Create a comprehensive test application that exercises all components:

// test-app/src/main.rs
use leptos::*;
use leptos_shadcn_ui::*;

fn main() {
    mount_to_body(|| view! {
        <div>
            <h1>"Leptos v0.8 Compatibility Test"</h1>
            
            // Test signal reactivity
            <SignalTest />
            
            // Test event handling
            <EventTest />
            
            // Test attribute binding
            <AttributeTest />
            
            // Test all components
            <ComponentShowcase />
        </div>
    })
}

#[component]
fn SignalTest() -> impl IntoView {
    let (count, set_count) = signal(0);
    let (is_visible, set_is_visible) = signal(true);
    
    view! {
        <div>
            <h2>"Signal Reactivity Test"</h2>
            <Button on_click=move |_| set_count.update(|c| *c += 1)>
                "Count: " {move || count.get()}
            </Button>
            <Button on_click=move |_| set_is_visible.update(|v| *v = !*v)>
                "Toggle Visibility"
            </Button>
            <div style:display=move || if is_visible.get() { "block" } else { "none" }>
                "This should toggle visibility"
            </div>
        </div>
    }
}

#[component]
fn EventTest() -> impl IntoView {
    let (input_value, set_input_value) = signal(String::new());
    let (button_clicks, set_button_clicks) = signal(0);
    
    view! {
        <div>
            <h2>"Event Handling Test"</h2>
            <Input 
                value=input_value
                on_change=move |value| set_input_value.set(value)
                placeholder="Type something..."
            />
            <p>"Input value: " {move || input_value.get()}</p>
            
            <Button on_click=move |_| set_button_clicks.update(|c| *c += 1)>
                "Button clicked: " {move || button_clicks.get()} " times"
            </Button>
        </div>
    }
}

#[component]
fn AttributeTest() -> impl IntoView {
    let (button_variant, set_button_variant) = signal(ButtonVariant::Default);
    let (input_disabled, set_input_disabled) = signal(false);
    let (custom_class, set_custom_class) = signal("custom-class".to_string());
    
    view! {
        <div>
            <h2>"Attribute Binding Test"</h2>
            <Button 
                variant=move || button_variant.get()
                on_click=move |_| set_button_variant.set(ButtonVariant::Destructive)
            >
                "Change Variant"
            </Button>
            
            <Input 
                disabled=move || input_disabled.get()
                class=move || custom_class.get()
                placeholder="Disabled state test"
            />
            <Button on_click=move |_| set_input_disabled.update(|d| *d = !*d)>
                "Toggle Disabled"
            </Button>
        </div>
    }
}

#[component]
fn ComponentShowcase() -> impl IntoView {
    view! {
        <div>
            <h2>"All Components Test"</h2>
            
            // Form Components
            <div>
                <h3>"Form Components"</h3>
                <Button>"Button"</Button>
                <Input placeholder="Input" />
                <Label>"Label"</Label>
                <Checkbox />
                <Switch />
                <Textarea placeholder="Textarea" />
            </div>
            
            // Layout Components
            <div>
                <h3>"Layout Components"</h3>
                <Card>
                    <CardHeader>
                        <CardTitle>"Card Title"</CardTitle>
                    </CardHeader>
                    <CardContent>"Card Content"</CardContent>
                </Card>
                <Separator />
                <Tabs>
                    <TabsList>
                        <TabsTrigger value="tab1">"Tab 1"</TabsTrigger>
                        <TabsTrigger value="tab2">"Tab 2"</TabsTrigger>
                    </TabsList>
                    <TabsContent value="tab1">"Tab 1 Content"</TabsContent>
                    <TabsContent value="tab2">"Tab 2 Content"</TabsContent>
                </Tabs>
            </div>
            
            // Add more component tests as needed...
        </div>
    }
}

3. Browser Testing

# Start the test application
cd test-app
trunk serve

# Open browser and test:
# 1. Signal reactivity
# 2. Event handling
# 3. Attribute binding
# 4. Component interactions

4. Performance Testing

# Run performance audit
cargo run -p leptos-shadcn-performance-audit --bin performance-audit -- audit

# Compare with previous version
cargo run -p leptos-shadcn-performance-audit --bin performance-audit -- audit --output v0.6.0-results.json

🧪 Specific Test Cases

Signal Reactivity Tests

1. Basic Signal Updates

   let (count, set_count) = signal(0);
   // Verify count updates in UI when set_count is called
   

2. Derived Signals

   let (name, set_name) = signal("John".to_string());
   let greeting = Signal::derive(move || format!("Hello, {}!", name.get()));
   // Verify greeting updates when name changes
   

3. Signal in Attributes

   let (is_disabled, set_is_disabled) = signal(false);
   // Verify disabled attribute updates when signal changes
   

Event Handling Tests

1. Click Events

   let (clicks, set_clicks) = signal(0);
   <Button on_click=move |_| set_clicks.update(|c| *c += 1)>
   // Verify click count increases
   

2. Input Events

   let (value, set_value) = signal(String::new());
   <Input on_change=move |v| set_value.set(v)>
   // Verify input value updates
   

3. Form Events

   // Test form submission and validation
   

Attribute Binding Tests

1. Class Attributes

   let (class, set_class) = signal("btn-primary".to_string());
   <Button class=move || class.get()>
   // Verify class changes in DOM
   

2. Style Attributes

   let (color, set_color) = signal("red".to_string());
   <div style:color=move || color.get()>
   // Verify style changes in DOM
   

3. Boolean Attributes

   let (disabled, set_disabled) = signal(false);
   <Button disabled=move || disabled.get()>
   // Verify disabled state changes
   

📊 Verification Results

Expected Results

• ✅ All components render correctly
• ✅ Signal updates reflect in UI immediately
• ✅ Event handlers execute properly
• ✅ Attribute changes update DOM
• ✅ No console errors in browser
• ✅ Performance is maintained or improved

Failure Indicators

• ❌ Components don't render
• ❌ Signal updates don't reflect in UI
• ❌ Event handlers don't execute
• ❌ Attribute changes don't update DOM
• ❌ Console errors in browser
• ❌ Performance regressions

🚀 Implementation Steps

Step 1: Create Test Application

# Create test application
cargo new leptos-v0.8-test-app
cd leptos-v0.8-test-app

# Add dependencies
cargo add leptos leptos-shadcn-ui --features all-components
cargo add trunk --dev

Step 2: Implement Test Components

• Create comprehensive test components
• Test all signal patterns
• Test all event types
• Test all attribute types

Step 3: Run Browser Tests

• Start development server
• Test in multiple browsers
• Verify all functionality works
• Check for console errors

Step 4: Performance Verification

• Run performance audit
• Compare with previous version
• Verify no regressions

Step 5: Document Results

• Record all test results
• Document any issues found
• Create verification report

📝 Verification Report Template

# Leptos v0.8 Compatibility Verification Report

## Test Environment
- Leptos Version: 0.8.x
- Browser: Chrome/Firefox/Safari
- OS: macOS/Windows/Linux
- Date: YYYY-MM-DD

## Test Results

### Compilation Tests
- [ ] All components compile
- [ ] No trait bound errors
- [ ] No attribute method errors

### Runtime Tests
- [ ] Signal reactivity works
- [ ] Event handling works
- [ ] Attribute binding works
- [ ] Component rendering works

### Performance Tests
- [ ] No performance regressions
- [ ] Bundle size maintained
- [ ] Runtime performance maintained

### Browser Compatibility
- [ ] Chrome
- [ ] Firefox
- [ ] Safari
- [ ] Edge

## Issues Found
- None / List any issues

## Conclusion
- ✅ Fully compatible with Leptos v0.8
- ❌ Issues found that need resolution

---

🎯 This verification plan ensures we have complete confidence in our Leptos v0.8 compatibility before releasing v0.6.0!