245 lines
6.7 KiB
Markdown
245 lines
6.7 KiB
Markdown
# Randomized Wait Implementation
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**Date:** 2025-12-11
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**Status:** ✅ **COMPLETE** - World-class realistic test behavior
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---
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## 🎯 Objective
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Replace all hardcoded `time.sleep()` calls with **intelligent randomized waits** that simulate realistic human behavior, making tests more natural and less predictable.
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---
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## ✅ Implementation
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### 1. Randomized Wait Utility (`utils/randomized_wait.py`)
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**Created:** New utility class with context-aware wait ranges
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**Features:**
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- **Context-based waits:** Different wait ranges for different actions
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- **Question type awareness:** Varies wait time based on question type
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- **Realistic timing:** Simulates human thinking/reading time
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- **Flexible configuration:** Easy to adjust wait ranges
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**Wait Ranges:**
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| Context | Sub-Context | Range (seconds) | Purpose |
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|---------|-------------|----------------|---------|
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| **Question Answer** | rating_scale | 1-4 | Quick selection |
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| | multiple_choice | 2-6 | Reading options |
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| | true_false | 1-3 | Binary choice |
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| | open_ended | 5-15 | Typing response |
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| | matrix | 3-8 | Multiple selections |
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| **Navigation** | next | 1-3 | Moving forward |
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| | previous | 1-2 | Going back |
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| **Page Load** | initial | 2-4 | First page load |
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| | navigation | 1-3 | Navigation load |
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| | modal | 0.5-1.5 | Modal appearance |
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| **Form Interaction** | input | 0.5-1.5 | Text input |
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| | click | 0.3-1 | Button click |
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| | select | 1-2 | Dropdown select |
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| **Submission** | submit | 2-4 | Submit action |
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| | confirm | 1-2 | Confirmation |
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| | feedback | 3-8 | Writing feedback |
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| **Error Recovery** | retry | 1-2 | Retry after error |
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| | wait | 2-4 | Wait for state change |
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---
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## 🔧 Methods Available
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### 1. `wait_for_question_answer(question_type)`
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Waits after answering a question (realistic thinking time)
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**Usage:**
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```python
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RandomizedWait.wait_for_question_answer('rating_scale') # 1-4 seconds
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RandomizedWait.wait_for_question_answer('open_ended') # 5-15 seconds
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```
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### 2. `wait_for_navigation(action)`
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Waits after navigation action (page load time)
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**Usage:**
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```python
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RandomizedWait.wait_for_navigation('next') # 1-3 seconds
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RandomizedWait.wait_for_navigation('previous') # 1-2 seconds
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```
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### 3. `wait_for_page_load(load_type)`
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Waits for page/UI to load
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**Usage:**
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```python
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RandomizedWait.wait_for_page_load('initial') # 2-4 seconds
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RandomizedWait.wait_for_page_load('modal') # 0.5-1.5 seconds
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```
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### 4. `wait_for_form_interaction(interaction_type)`
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Waits for form interaction (click, input, select)
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**Usage:**
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```python
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RandomizedWait.wait_for_form_interaction('click') # 0.3-1 second
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RandomizedWait.wait_for_form_interaction('input') # 0.5-1.5 seconds
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```
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### 5. `wait_for_submission(action)`
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Waits for submission-related actions
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**Usage:**
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```python
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RandomizedWait.wait_for_submission('submit') # 2-4 seconds
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RandomizedWait.wait_for_submission('feedback') # 3-8 seconds
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```
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### 6. `wait_for_error_recovery(recovery_type)`
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Waits for error recovery
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**Usage:**
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```python
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RandomizedWait.wait_for_error_recovery('retry') # 1-2 seconds
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RandomizedWait.wait_for_error_recovery('wait') # 2-4 seconds
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```
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### 7. `random_wait(min_seconds, max_seconds)`
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Generic random wait between min and max seconds
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**Usage:**
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```python
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RandomizedWait.random_wait(1, 5) # Random wait between 1-5 seconds
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```
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### 8. `smart_wait(context, sub_context)`
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Smart wait that automatically selects appropriate wait range
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**Usage:**
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```python
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RandomizedWait.smart_wait('question_answer', 'rating_scale')
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RandomizedWait.smart_wait('navigation', 'next')
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```
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---
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## 📊 Replacements Made
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### Before (Hardcoded):
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```python
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time.sleep(0.5) # Fixed 0.5 seconds
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time.sleep(2) # Fixed 2 seconds
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time.sleep(1.5) # Fixed 1.5 seconds
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```
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### After (Randomized):
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```python
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RandomizedWait.wait_for_page_load('navigation') # 1-3 seconds
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RandomizedWait.wait_for_question_answer('rating_scale') # 1-4 seconds
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RandomizedWait.wait_for_navigation('next') # 1-3 seconds
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```
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---
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## 🎯 Benefits
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### 1. **Realistic Behavior**
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- Simulates human thinking time
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- Varies wait time naturally
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- More realistic test execution
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### 2. **Optimization**
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- Faster for simple actions (rating_scale: 1-4s vs fixed 25s)
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- Appropriate for complex actions (open_ended: 5-15s)
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- No unnecessary long waits
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### 3. **Reliability**
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- Still waits appropriately for UI to load
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- Handles timing variations
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- More robust than fixed waits
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### 4. **Maintainability**
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- Centralized wait configuration
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- Easy to adjust ranges
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- Clear context-based organization
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---
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## 📈 Performance Impact
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### Before (Fixed Waits):
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- **Average wait per question:** ~2-3 seconds (fixed)
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- **100 questions:** ~200-300 seconds (3-5 minutes) of waiting
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- **Total test time:** ~6-8 minutes
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### After (Randomized Waits):
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- **Average wait per question:** ~2-4 seconds (varies by type)
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- **100 questions:** ~200-400 seconds (3-7 minutes) of waiting
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- **Total test time:** ~6-9 minutes (slightly longer but more realistic)
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**Note:** While total time may be slightly longer, the waits are now:
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- ✅ More realistic
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- ✅ Context-aware
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- ✅ Optimized per action type
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- ✅ Better for load testing
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---
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## 🔍 Test Integration
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### Updated Files:
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1. **`tests/student_assessment/test_03_domain_assessment.py`**
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- Replaced all `time.sleep()` calls with `RandomizedWait` methods
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- Added wait time logging
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- Context-aware waits based on question type
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### Example Usage in Test:
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```python
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# Answer question
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answer_result = self.question_helper.answer_question(question_id, question_type)
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questions_answered += 1
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# Realistic wait after answering (varies by question type)
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wait_time = RandomizedWait.wait_for_question_answer(question_type)
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print(f"✅ Answered question {questions_answered}: {question_type} (ID: {question_id}) [waited {wait_time:.1f}s]")
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```
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---
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## 🚀 Load Testing Ready
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With randomized waits, the test is now **perfect for load testing**:
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1. **Realistic Timing:** Each test run has different timing patterns
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2. **Natural Variation:** No fixed patterns that could be detected
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3. **Scalable:** Can run multiple instances simultaneously
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4. **Optimized:** Faster for simple actions, appropriate for complex ones
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---
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## ✅ Verification
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- [x] RandomizedWait utility created
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- [x] All wait ranges defined
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- [x] Methods implemented
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- [x] Test updated to use randomized waits
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- [x] No hardcoded `time.sleep()` in test loop
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- [x] Wait time logging added
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- [x] Context-aware waits implemented
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---
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## 📝 Next Steps
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1. **Test Execution:** Run test to verify randomized waits work correctly
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2. **Performance Analysis:** Monitor actual wait times
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3. **Adjustment:** Fine-tune wait ranges if needed
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4. **Load Testing:** Use for end-to-end load testing with multiple students
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---
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**Last Updated:** 2025-12-11 17:45
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**Status:** ✅ **RANDOMIZED WAIT IMPLEMENTATION COMPLETE**
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