173 lines
9.3 KiB
Python
173 lines
9.3 KiB
Python
"""Integration checks against the production Chromium/Rust renderer, no LLM."""
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from __future__ import annotations
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import json
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import os
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import shutil
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import sys
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import tempfile
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import threading
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import unittest
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import zipfile
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from pathlib import Path
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from unittest.mock import patch
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from playwright.sync_api import sync_playwright
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ROOT = Path(__file__).resolve().parents[1]
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sys.path.insert(0, str(ROOT))
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from betteroffice_render import RenderError, _check_renderer, _server, render
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from docx_template import fill_template
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from process import _date_label
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TEMPLATE = Path(os.getenv("CONTENTPANEL_TEST_TEMPLATE", "/var/www/html/intranet_repo/projects/contentpanel/insertion/template/aushang-template.docx"))
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class RenderingTests(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls.temp = tempfile.TemporaryDirectory(prefix="contentpanel_render_test_")
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cls.output = Path(os.getenv("CONTENTPANEL_TEST_OUTPUT", cls.temp.name))
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cls.output.mkdir(parents=True, exist_ok=True)
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cls.document = cls.output / "verified.docx"
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with zipfile.ZipFile(TEMPLATE) as archive:
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(cls.output / "original-logo.png").write_bytes(archive.read("word/media/image1.png"))
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paragraphs = [
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("Dies ist ein langer Testabsatz zur Prüfung von Schriftgröße, Zeilenumbruch und Seitenaufteilung. " * 12).strip()
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for _ in range(3)
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] + ["• Ein längerer Stichpunkt, dessen zweite Zeile unter dem Text und nicht unter dem Aufzählungszeichen beginnt.\n"
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"• Ein zweiter Stichpunkt bestätigt den gleichmäßigen Abstand der Liste.",
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"Erste Gedichtzeile\nZweite Gedichtzeile\n\nVon Herzen\nEure Gastgeber",
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"Abschlussmarker: Dieser letzte Absatz muss vollständig auf der letzten Seite erscheinen."]
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fill_template(TEMPLATE, cls.document,
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"Verabschiedung von Diakon Georg aus der Gemeinde Reinickendorf",
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_date_label("2026-09-02"), paragraphs)
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with patch.dict(os.environ, {"CONTENTPANEL_RENDER_SCALE": "1"}):
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cls.page_count = render(cls.document, cls.output)
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cls.metrics = []
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server = _server(cls.output, cls.document, ROOT / "fonts")
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thread = threading.Thread(target=server.serve_forever, daemon=True)
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thread.start()
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try:
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with sync_playwright() as playwright:
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browser = playwright.chromium.launch(headless=True, args=["--disable-dev-shm-usage"])
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page = browser.new_page()
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for number in range(1, cls.page_count + 1):
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page.goto(f"http://127.0.0.1:{server.server_address[1]}/page-{number}.png")
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page.wait_for_function("document.querySelector('img')?.complete")
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cls.metrics.append(page.evaluate("""async () => {
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const img = document.querySelector('img');
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const canvas = document.createElement('canvas');
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canvas.width = img.naturalWidth; canvas.height = img.naturalHeight;
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const ctx = canvas.getContext('2d'); ctx.drawImage(img, 0, 0);
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const {data} = ctx.getImageData(0, 0, canvas.width, canvas.height);
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const blue = {left:canvas.width, top:canvas.height, right:0, bottom:0, count:0};
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const rows = Array(canvas.height).fill(0);
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let rightOverflow = 0;
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for (let y=0;y<canvas.height;y++) for (let x=0;x<canvas.width;x++) {
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const i=(y*canvas.width+x)*4, r=data[i], g=data[i+1], b=data[i+2];
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if (b>130 && r<90 && g>60 && b>g+20) {
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blue.left=Math.min(blue.left,x); blue.right=Math.max(blue.right,x);
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blue.top=Math.min(blue.top,y); blue.bottom=Math.max(blue.bottom,y); blue.count++;
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}
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if (r<100 && g<100 && b<100) {
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if (x>=50 && x<725) rows[y]++;
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if (x>=725 && y>300 && y<930) rightOverflow++;
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}
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}
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const bands=[]; let start=null;
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rows.forEach((count,y)=>{
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if(count>=4 && start===null) start=y;
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if((count<4 || y===rows.length-1) && start!==null) {
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bands.push({top:start,bottom:y-1,height:y-start}); start=null;
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}
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});
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// Compare the full white symbol, not just its blue box.
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// A shifted duplicate used to pass the position check.
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const reference = new Image(); reference.src = '/original-logo.png';
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await reference.decode();
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const refCanvas = document.createElement('canvas');
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const w=blue.right-blue.left+1, h=blue.bottom-blue.top+1;
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refCanvas.width=w; refCanvas.height=h;
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const refCtx=refCanvas.getContext('2d'); refCtx.drawImage(reference,0,0,w,h);
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const ref=refCtx.getImageData(0,0,w,h).data;
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const actual=ctx.getImageData(blue.left,blue.top,w,h).data;
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const white=(pixels,i)=>pixels[i]>150 && pixels[i+1]>180 && pixels[i+2]>200;
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let tp=0, fp=0, fn=0;
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for(let i=0;i<ref.length;i+=4) {
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const expected=white(ref,i), rendered=white(actual,i);
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if(expected && rendered) tp++;
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else if(rendered) fp++;
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else if(expected) fn++;
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}
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const logoF1=2*tp/(2*tp+fp+fn);
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return {width:canvas.width,height:canvas.height,blue,bands,rightOverflow,logoF1};
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}"""))
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browser.close()
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finally:
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server.shutdown(); server.server_close(); thread.join(timeout=2)
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(cls.output / "pixel-metrics.json").write_text(json.dumps(cls.metrics, indent=2), encoding="utf-8")
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@classmethod
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def tearDownClass(cls):
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cls.temp.cleanup()
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def test_long_text_paginates_and_last_paragraph_survives(self):
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import subprocess
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self.assertGreaterEqual(self.page_count, 2)
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self.assertLessEqual(self.page_count, 4)
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text = subprocess.run(["tesseract", str(self.output / f"page-{self.page_count}.png"),
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"stdout", "-l", "deu", "--psm", "11"],
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capture_output=True, text=True, check=True, timeout=30).stdout
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self.assertIn("Abschlussmarker", text)
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def test_real_pixels_have_large_title_and_wrapped_body(self):
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first = self.metrics[0]
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title = [band for band in first["bands"] if 90 < band["top"] < 275 and band["height"] > 10]
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self.assertEqual(len(title), 3)
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self.assertTrue(all(band["height"] >= 30 for band in title), title)
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body = [band for band in first["bands"] if 325 < band["top"] < 930]
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self.assertGreater(len(body), 15)
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self.assertTrue(all(metric["rightOverflow"] == 0 for metric in self.metrics))
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def test_logo_is_on_the_right_and_complete_on_every_page(self):
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for number, metric in enumerate(self.metrics, 1):
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with self.subTest(page=number):
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self.assertEqual((metric["width"], metric["height"]), (794, 1123))
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logo = metric["blue"]
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self.assertGreater(logo["count"], 3500)
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self.assertAlmostEqual(logo["left"], 643, delta=2)
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self.assertAlmostEqual(logo["right"], 718, delta=2)
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self.assertGreater(logo["top"], 950)
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self.assertLess(logo["bottom"], 1060)
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self.assertAlmostEqual(logo["right"]-logo["left"], logo["bottom"]-logo["top"], delta=2)
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self.assertGreater(metric["logoF1"], .78, metric)
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def test_missing_font_stops_before_png_export(self):
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with tempfile.TemporaryDirectory() as temp:
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with patch.dict(os.environ, {"CONTENTPANEL_FONT_DIR": temp}):
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with self.assertRaisesRegex(RenderError, "Schriftdatei fehlt"):
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render(self.document, Path(temp) / "output")
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self.assertFalse(list(Path(temp).rglob("*.png")))
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def test_corrupt_font_stops_before_png_export(self):
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with tempfile.TemporaryDirectory() as temp:
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fonts = Path(temp) / "fonts"
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shutil.copytree(ROOT / "fonts", fonts)
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(fonts / "SuisseIntl-Light.otf").write_bytes(b"invalid font")
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with patch.dict(os.environ, {"CONTENTPANEL_FONT_DIR": str(fonts)}):
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with self.assertRaises(RenderError):
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render(self.document, Path(temp) / "output")
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self.assertFalse(list(Path(temp).rglob("*.png")))
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def test_synthetic_metrics_are_not_accepted_as_success(self):
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class Page:
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def evaluate(self, _):
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return None
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with self.assertRaisesRegex(RenderError, "synthetic text metrics"):
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_check_renderer(Page(), ["warning: [canvasBackend] synthetic text metrics active"])
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if __name__ == "__main__":
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unittest.main(verbosity=2)
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