# 🧪 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** ✅
- [x] `cargo check --workspace` passes
- [x] All 46 components compile successfully
- [x] No trait bound errors
- [x] 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**
```bash
# 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:

```rust
// 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**
```bash
# 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**
```bash
# 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**
   ```rust
   let (count, set_count) = signal(0);
   // Verify count updates in UI when set_count is called
   ```

2. **Derived Signals**
   ```rust
   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**
   ```rust
   let (is_disabled, set_is_disabled) = signal(false);
   // Verify disabled attribute updates when signal changes
   ```

### **Event Handling Tests**
1. **Click Events**
   ```rust
   let (clicks, set_clicks) = signal(0);
   <Button on_click=move |_| set_clicks.update(|c| *c += 1)>
   // Verify click count increases
   ```

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

3. **Form Events**
   ```rust
   // Test form submission and validation
   ```

### **Attribute Binding Tests**
1. **Class Attributes**
   ```rust
   let (class, set_class) = signal("btn-primary".to_string());
   <Button class=move || class.get()>
   // Verify class changes in DOM
   ```

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

3. **Boolean Attributes**
   ```rust
   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**
```bash
# 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**

```markdown
# 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!**
