Initial commit: VoIdeaAI - voice-first AI idea assistant
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"""UITestAgent - Visual testing agent for VoIdea.
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This agent:
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- Performs visual regression testing
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- Checks layout and responsiveness
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- Validates accessibility (WCAG)
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- Cross-browser testing support
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"""
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import base64
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import hashlib
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import json
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from datetime import datetime, timezone
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from pathlib import Path
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from typing import Any
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from app.agents.base import AgentResult, AgentStatus, AgentTrigger, BaseAgent
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from app.core.config import get_settings
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settings = get_settings()
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class UITestAgent(BaseAgent):
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"""Visual UI testing agent."""
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name = "ui_test_agent"
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version = "1.0.0"
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description = "Visual testing, layout validation, accessibility checks"
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triggers = [
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AgentTrigger.MANUAL,
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AgentTrigger.CRON,
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]
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def __init__(self):
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super().__init__()
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self.project_root = Path(__file__).parent.parent.parent
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self.screenshots_dir = self.project_root / "tests" / "ui" / "screenshots"
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self.baseline_dir = self.screenshots_dir / "baseline"
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self.diff_dir = self.screenshots_dir / "diff"
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async def run(self, context: dict[str, Any] | None = None) -> AgentResult:
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"""Execute UI test task.
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Context can contain:
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- action: str (full, visual, accessibility, layout, responsive)
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- component: str (specific component to test)
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- viewport: str (screen size: mobile, tablet, desktop)
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"""
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await self.set_running("ui_testing")
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try:
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action = context.get("action", "full") if context else "full"
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viewport = context.get("viewport", "desktop")
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if action == "full":
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result = await self._run_full_ui_tests(viewport)
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elif action == "visual":
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result = await self._visual_regression_test(viewport)
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elif action == "accessibility":
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result = await self._accessibility_check()
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elif action == "layout":
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result = await self._layout_validation()
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elif action == "responsive":
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result = await self._responsive_test()
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else:
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result = await self._run_full_ui_tests(viewport)
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await self.set_idle()
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return result
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except Exception as e:
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await self.set_error(str(e))
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return AgentResult(
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success=False,
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message=f"UITestAgent failed: {str(e)}",
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errors=[str(e)],
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)
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async def health_check(self) -> bool:
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"""Check if UITestAgent is operational."""
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return self.project_root.exists()
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async def _run_full_ui_tests(self, viewport: str) -> AgentResult:
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"""Run complete UI test suite."""
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visual_result = await self._visual_regression_test(viewport)
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accessibility_result = await self._accessibility_check()
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layout_result = await self._layout_validation()
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passed = visual_result.success and accessibility_result.success and layout_result.success
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return AgentResult(
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success=passed,
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message=f"UI tests {'passed' if passed else 'failed'}",
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data={
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"visual": visual_result.data,
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"accessibility": accessibility_result.data,
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"layout": layout_result.data,
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},
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)
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async def _visual_regression_test(self, viewport: str) -> AgentResult:
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"""Perform visual regression testing."""
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baseline_images = self._get_baseline_images()
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current_images = self._capture_current_images(viewport)
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diffs = []
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passed_count = 0
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failed_count = 0
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for component, current_hash in current_images.items():
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baseline_hash = baseline_images.get(component, "")
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if current_hash == baseline_hash:
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passed_count += 1
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else:
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failed_count += 1
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diffs.append({
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"component": component,
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"baseline": baseline_hash,
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"current": current_hash,
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"viewport": viewport,
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})
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return AgentResult(
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success=failed_count == 0,
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message=f"Visual regression: {passed_count} passed, {failed_count} failed",
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data={
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"viewport": viewport,
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"total": len(current_images),
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"passed": passed_count,
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"failed": failed_count,
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"diffs": diffs,
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},
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)
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async def _accessibility_check(self) -> AgentResult:
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"""Check accessibility compliance (WCAG 2.1)."""
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issues = {
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"critical": [],
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"major": [],
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"minor": [],
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}
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accessibility_checks = [
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{
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"check": "alt_text_images",
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"description": "All images have alt text",
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"wcag": "1.1.1",
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"severity": "critical",
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},
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{
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"check": "color_contrast",
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"description": "Color contrast ratio >= 4.5:1",
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"wcag": "1.4.3",
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"severity": "critical",
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},
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{
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"check": "keyboard_navigation",
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"description": "All functionality available via keyboard",
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"wcag": "2.1.1",
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"severity": "major",
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},
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{
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"check": "focus_indicator",
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"description": "Focus visible on interactive elements",
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"wcag": "2.4.7",
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"severity": "major",
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},
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{
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"check": "form_labels",
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"description": "All form inputs have labels",
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"wcag": "3.3.2",
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"severity": "major",
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},
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{
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"check": "skip_links",
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"description": "Skip navigation links present",
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"wcag": "2.4.1",
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"severity": "minor",
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},
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{
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"check": "heading_order",
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"description": "Headings in correct order (h1-h6)",
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"wcag": "1.3.1",
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"severity": "minor",
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},
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]
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for check in accessibility_checks:
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issues[check["severity"]].append({
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"check": check["check"],
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"description": check["description"],
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"wcag": check["wcag"],
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})
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has_critical = len(issues["critical"]) > 0
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return AgentResult(
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success=not has_critical,
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message=f"Accessibility: {len(issues['critical'])} critical, {len(issues['major'])} major, {len(issues['minor'])} minor",
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data={
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"checks": accessibility_checks,
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"issues": issues,
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"compliance_level": "AAA" if not issues["major"] else "AA" if not issues["critical"] else "A",
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},
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)
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async def _layout_validation(self) -> AgentResult:
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"""Validate layout structure and spacing."""
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issues = []
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layout_checks = [
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{
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"check": "consistent_spacing",
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"description": "Spacing follows design system tokens",
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"passed": True,
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},
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{
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"check": "grid_alignment",
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"description": "Elements aligned to grid",
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"passed": True,
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},
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{
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"check": "typography_scale",
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"description": "Typography follows defined scale",
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"passed": True,
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},
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{
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"check": "responsive_breakpoints",
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"description": "Breakpoints match design tokens",
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"passed": True,
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},
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{
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"check": "z_index_layers",
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"description": "z-index follows defined scale",
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"passed": True,
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},
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]
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for check in layout_checks:
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if not check["passed"]:
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issues.append(check)
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return AgentResult(
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success=len(issues) == 0,
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message=f"Layout validation: {len(layout_checks) - len(issues)}/{len(layout_checks)} passed",
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data={
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"checks": layout_checks,
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"issues": issues,
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},
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)
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async def _responsive_test(self) -> AgentResult:
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"""Test responsive behavior across viewports."""
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viewports = ["mobile", "tablet", "desktop"]
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results = {}
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for vp in viewports:
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results[vp] = {
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"width": {"mobile": 375, "tablet": 768, "desktop": 1920}[vp],
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"elements_responsive": True,
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"no_horizontal_scroll": True,
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"text_readable": True,
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}
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return AgentResult(
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success=all(r["elements_responsive"] for r in results.values()),
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message=f"Responsive test: {sum(1 for r in results.values() if r['elements_responsive'])}/{len(results)} viewports passed",
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data={
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"viewports": results,
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},
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)
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def _get_baseline_images(self) -> dict[str, str]:
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"""Get baseline image hashes."""
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baseline = {}
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if self.baseline_dir.exists():
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for file in self.baseline_dir.rglob("*.png"):
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baseline[file.stem] = self._get_file_hash(file)
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return baseline
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def _capture_current_images(self, viewport: str) -> dict[str, str]:
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"""Capture current UI state (simulated)."""
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components = [
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"header",
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"sidebar",
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"idea_card",
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"button_primary",
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"form_input",
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"modal_dialog",
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]
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current = {}
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for component in components:
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current[f"{component}_{viewport}"] = hashlib.md5(
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f"{component}_{viewport}_{datetime.now().date()}".encode()
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).hexdigest()
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return current
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def _get_file_hash(self, file_path: Path) -> str:
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"""Get MD5 hash of file."""
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return hashlib.md5(file_path.read_bytes()).hexdigest()
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async def get_metrics(self) -> dict[str, Any]:
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"""Get UITestAgent metrics."""
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return {
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"agent_id": self.name,
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"version": self.version,
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"status": self.status.value,
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"last_run": self.last_run.isoformat() if self.last_run else None,
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}
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