From 2421f7ddd50ce170a70bc3d3af6772bfab8587a9 Mon Sep 17 00:00:00 2001
From: Andrey Epifancev <andrey.epifancev@ssi-solutions.ru>
Date: Wed, 28 Oct 2026 22:17:21 +0400
Subject: [PATCH] =?UTF-8?q?test(web):=20=D1=81=D0=B2=D0=BE=D0=B4=202=20?=
 =?UTF-8?q?=E2=80=94=20=D0=BE=D0=BA=D0=BD=D0=BE=20=D1=81=D1=82=D1=80=D0=BE?=
 =?UTF-8?q?=D0=BA=20=D1=87=D0=B5=D1=80=D0=B5=D0=B7=20=D0=BE=D1=82=D1=81?=
 =?UTF-8?q?=D1=82=D1=83=D0=BF=D1=8B=20=D0=B2=D0=B8=D1=80=D1=82=D1=83=D0=B0?=
 =?UTF-8?q?=D0=BB=D0=B8=D0=B7=D0=B0=D1=82=D0=BE=D1=80=D0=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 .../pages/Svod2Page/svod2Virtualizer.test.js  | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 web/src/pages/Svod2Page/svod2Virtualizer.test.js

diff --git a/web/src/pages/Svod2Page/svod2Virtualizer.test.js b/web/src/pages/Svod2Page/svod2Virtualizer.test.js
new file mode 100644
index 0000000..83c9691
--- /dev/null
+++ b/web/src/pages/Svod2Page/svod2Virtualizer.test.js
@@ -0,0 +1,24 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { Virtualizer } from '@tanstack/virtual-core';
+
+test('paddingStart/paddingEnd ставят глобальную строку i на i*rowH, общий размер = total*rowH', () => {
+	const rowH = 37;
+	const total = 5563;
+	const windowStart = 300;
+	const windowEnd = 1200;
+	const v = new Virtualizer({
+		count: windowEnd - windowStart,
+		getScrollElement: () => null,
+		estimateSize: () => rowH,
+		paddingStart: windowStart * rowH,
+		paddingEnd: (total - windowEnd) * rowH,
+		scrollToFn: () => undefined,
+		observeElementRect: () => undefined,
+		observeElementOffset: () => undefined,
+	});
+	const m = v.getMeasurements();
+	assert.equal(m[0].start, windowStart * rowH);
+	assert.equal(m.at(-1).end, windowEnd * rowH);
+	assert.equal(v.getTotalSize(), total * rowH);
+});