feat(web-test): сохранять и восстанавливать буфер обмена вокруг паст

Тесты активно используют OS clipboard (`writeText` + Ctrl+V — единственный
способ добиться trusted-paste для autocomplete справочников и кириллицы).
При локальном запуске это перетирало пользовательский буфер. Теперь:

- `pasteText(text, {confirm, postDelay})` в browser.mjs делает узкое окно
  save → writeText → confirm-key → restore вокруг каждой пасты (~ms).
- Save/restore через `navigator.clipboard.read()`/`write()` — все MIME
  (текст, картинка, HTML), blob'ы стэшатся на `window` без CDP-сериализации.
- 14 callsites переведены на helper.
- При failure save'а (CF_HDROP из Проводника не виден через web-API) restore
  явно очищает буфер, чтобы тестовое значение не протекало.
- Опт-аут: CLI `--no-preserve-clipboard`, env `WEB_TEST_PRESERVE_CLIPBOARD=0`,
  `preserveClipboard: false` в `webtest.config.mjs`.

Регресс tests/web-test — 6 прогонов 19/19 passed.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.claude/skills/web-test/SKILL.md

@@ -531,7 +531,7 @@ On error (auto-screenshot taken):
 - **Headed mode** — 1C requires visible browser, no headless
 - **Startup time** — 1C loads 30-60s on initial connect (built into `start`)
 - **Fuzzy matching** — all name lookups: exact > startsWith > includes
-- **Clipboard paste** — all text fields filled via Ctrl+V (triggers 1C events properly)
+- **Clipboard paste** — all text fields filled via Ctrl+V (triggers 1C events properly). The OS clipboard is automatically saved before each action and restored after, so a local user's clipboard survives a test run. Opt out with `--no-preserve-clipboard` (any command), `WEB_TEST_PRESERVE_CLIPBOARD=0` env, or `preserveClipboard: false` in `webtest.config.mjs`
 - **Cyrillic in bash** — use `cat <<'SCRIPT' | node $RUN exec -` to avoid escaping issues
 - **Non-breaking spaces** — 1C uses `\u00a0` instead of regular spaces. All matching is normalized internally
 - **Section panel display** — `navigateSection()` works with any panel position (side, top) but requires "Picture and text" or "Text" display mode. Icon-only mode is not supported — API cannot read section names from icons alone

.claude/skills/web-test/scripts/browser.mjs

@@ -1,4 +1,4 @@
-// web-test browser v1.12 — Playwright browser management for 1C web client
+// web-test browser v1.16 — Playwright browser management for 1C web client
 // Source: https://github.com/Nikolay-Shirokov/cc-1c-skills
 /**
  * Playwright browser management for 1C web client.
@@ -61,6 +61,98 @@ const STABLE_CYCLES = 3;    // consecutive stable cycles needed
 const EXT_ID = 'pbhelknnhilelbnhfpcjlcabhmfangik';
 let persistentUserDataDir = null; // temp dir for launchPersistentContext, cleaned on disconnect
 
+// Clipboard preservation: save full clipboard contents (all MIME types) right before
+// each writeText+Ctrl+V pair, restore right after — narrow window so a user's
+// concurrent Ctrl+C isn't clobbered. Blobs are stashed on `window` (no CDP
+// serialization). Toggled via setPreserveClipboard() from run.mjs.
+let preserveClipboard = true;
+let clipboardWarnLogged = false;
+export function setPreserveClipboard(v) { preserveClipboard = !!v; }
+export async function saveClipboard() {
+  if (!page) return;
+  try {
+    await page.evaluate(async () => {
+      try {
+        const items = await navigator.clipboard.read();
+        const saved = [];
+        for (const item of items) {
+          const types = {};
+          for (const t of item.types) types[t] = await item.getType(t);
+          saved.push(types);
+        }
+        window.__webTestSavedClipboard = saved;
+        delete window.__webTestClipboardError;
+      } catch (e) {
+        window.__webTestSavedClipboard = null;
+        window.__webTestClipboardError = e?.name || String(e);
+      }
+    });
+  } catch {
+    // page.evaluate itself failed (closed page, navigation in flight) — skip.
+  }
+}
+export async function restoreClipboard() {
+  if (!page) return;
+  let err = null;
+  try {
+    err = await page.evaluate(async () => {
+      const saved = window.__webTestSavedClipboard;
+      const captured = window.__webTestClipboardError || null;
+      delete window.__webTestSavedClipboard;
+      delete window.__webTestClipboardError;
+      try {
+        if (!saved || saved.length === 0) {
+          // Save failed (e.g. CF_HDROP from Explorer not readable via Clipboard API)
+          // or buffer was empty. Either way, the test's writeText already destroyed
+          // any prior native formats in the OS clipboard, so explicitly clear here
+          // to avoid leaking the test value into the user's clipboard.
+          await navigator.clipboard.writeText('');
+          return captured;
+        }
+        const items = saved.map(types => new ClipboardItem(types));
+        await navigator.clipboard.write(items);
+        return null;
+      } catch (e) {
+        return e?.name || String(e);
+      }
+    });
+  } catch {
+    return;
+  }
+  if (err && !clipboardWarnLogged) {
+    clipboardWarnLogged = true;
+    console.error(`[web-test] clipboard preserve skipped: ${err} (logged once per session)`);
+  }
+}
+
+/**
+ * Paste `text` via OS clipboard (the only trusted-paste path that 1C respects
+ * for autocomplete and Cyrillic). Wraps the writeText+confirm-key pair in a
+ * narrow save/restore so a user's clipboard survives the test run — the window
+ * between save and restore is microseconds.
+ *
+ * - `confirm` — key (string) or sequence (array) to press after writeText.
+ *   Defaults to 'Control+V'. Use ['Control+a', 'Control+v'] for select-all-then-paste,
+ *   or 'Shift+F11' for the goto-link dialog.
+ * - `postDelay` — ms to wait between confirm-press and restore, for dialogs
+ *   that read clipboard asynchronously (e.g. Shift+F11). Default 0.
+ */
+export async function pasteText(text, { confirm = 'Control+V', postDelay = 0 } = {}) {
+  if (!page) return;
+  if (preserveClipboard) await saveClipboard();
+  try {
+    await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(String(text))})`);
+    if (Array.isArray(confirm)) {
+      for (const key of confirm) await page.keyboard.press(key);
+    } else if (confirm) {
+      await page.keyboard.press(confirm);
+    }
+    if (postDelay) await page.waitForTimeout(postDelay);
+  } finally {
+    if (preserveClipboard) await restoreClipboard();
+  }
+}
+
 /**
  * Find the 1C browser extension in Chrome/Edge user profiles.
  * Returns the path to the latest version, or null if not found.
@@ -1137,8 +1229,7 @@ export async function navigateLink(url) {
   const formBefore = await page.evaluate(detectFormScript());
 
   // Copy link to clipboard, press Shift+F11 (opens "Go to link" dialog with clipboard content)
-  await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(link)})`);
-  await page.keyboard.press('Shift+F11');
+  await pasteText(link, { confirm: 'Shift+F11', postDelay: 200 });
   await waitForStable();
 
   // Click "Перейти" in the navigation dialog
@@ -1868,8 +1959,7 @@ async function advancedSearchInline(formNum, text) {
     await page.click(`[id="${patternId}"]`);
     await page.waitForTimeout(200);
     await page.keyboard.press('Control+A');
-    await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(String(text))})`);
-    await page.keyboard.press('Control+V');
+    await pasteText(text);
     await page.waitForTimeout(300);
 
     // 4. Click "Найти"
@@ -1971,8 +2061,7 @@ async function pickFromSelectionForm(selFormNum, fieldName, search, origFormNum)
         await page.click(`[id="${searchInputId}"]`);
         await page.waitForTimeout(200);
         await page.keyboard.press('Control+A');
-        await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(String(searchText))})`);
-        await page.keyboard.press('Control+V');
+        await pasteText(searchText);
         await page.waitForTimeout(300);
         await page.keyboard.press('Enter');
         await waitForStable(selFormNum);
@@ -2112,8 +2201,7 @@ async function pickFromTypeDialog(formNum, typeName) {
 
   // Paste search text (focus is on "Что искать" field)
   await page.keyboard.press('Control+a');
-  await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(typeName)})`);
-  await page.keyboard.press('Control+v');
+  await pasteText(typeName);
   await page.waitForTimeout(300);
 
   // Find the "Найти" dialog form number (it's > formNum)
@@ -2302,8 +2390,7 @@ async function fillReferenceField(selector, fieldName, value, formNum) {
   }
 
   // 3. Paste text via clipboard (trusted event → triggers real 1C autocomplete)
-  await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(text)})`);
-  await page.keyboard.press('Control+V');
+  await pasteText(text);
   await page.waitForTimeout(2000);
 
   // 4. Check editDropDown for autocomplete suggestions
@@ -2518,8 +2605,7 @@ export async function fillFields(fields) {
         await page.click(selector);
         await page.waitForTimeout(200);
         await page.keyboard.press('Control+A');
-        await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(String(fields[r.field]))})`);
-        await page.keyboard.press('Control+V');
+        await pasteText(fields[r.field]);
         await page.waitForTimeout(300);
         await page.keyboard.press('Tab');
         await waitForStable();
@@ -2539,8 +2625,7 @@ export async function fillFields(fields) {
         await page.click(selector);
         await page.waitForTimeout(200);
         await page.keyboard.press('Control+A');
-        await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(String(fields[r.field]))})`);
-        await page.keyboard.press('Control+V');
+        await pasteText(fields[r.field]);
         await page.waitForTimeout(300);
         await page.keyboard.press('Tab');
         await waitForStable();
@@ -3818,9 +3903,7 @@ export async function fillTableRow(fields, { tab, add, row, table } = {}) {
         })()`);
         if (selForm === null && inInputAfterDblclick) {
           // Plain text/numeric field — fill via clipboard paste
-          await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(info.value)})`);
-          await page.keyboard.press('Control+a');
-          await page.keyboard.press('Control+v');
+          await pasteText(info.value, { confirm: ['Control+a', 'Control+v'] });
           await page.waitForTimeout(400);
           // Dismiss EDD autocomplete if it appeared
           const hasEdd = await page.evaluate(`(() => {
@@ -4135,9 +4218,7 @@ export async function fillTableRow(fields, { tab, add, row, table } = {}) {
               }
             }
           }
-          await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(text)})`);
-          await page.keyboard.press('Control+a');
-          await page.keyboard.press('Control+v');
+          await pasteText(text, { confirm: ['Control+a', 'Control+v'] });
           await page.waitForTimeout(400);
           await page.keyboard.press('Tab');
           await page.waitForTimeout(300);
@@ -4169,8 +4250,7 @@ export async function fillTableRow(fields, { tab, add, row, table } = {}) {
 
     // === Fill this cell: clipboard paste (trusted event) ===
     await page.keyboard.press('Control+A');
-    await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(text)})`);
-    await page.keyboard.press('Control+V');
+    await pasteText(text);
     await page.waitForTimeout(1500);
 
     // Check if paste was rejected (composite-type cell blocks text input until type is selected)
@@ -4421,9 +4501,7 @@ export async function fillTableRow(fields, { tab, add, row, table } = {}) {
                 }
               }
             }
-            await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(text)})`);
-            await page.keyboard.press('Control+a');
-            await page.keyboard.press('Control+v');
+            await pasteText(text, { confirm: ['Control+a', 'Control+v'] });
             await page.waitForTimeout(400);
             await page.keyboard.press('Tab');
             await page.waitForTimeout(300);
@@ -4668,8 +4746,7 @@ export async function filterList(text, { field, exact } = {}) {
       await page.click(`[id="${searchId}"]`);
       await page.waitForTimeout(200);
       await page.keyboard.press('Control+A');
-      await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(String(text))})`);
-      await page.keyboard.press('Control+V');
+      await pasteText(text);
       await page.waitForTimeout(300);
       await page.keyboard.press('Enter');
       await waitForStable(formNum);
@@ -4849,8 +4926,7 @@ export async function filterList(text, { field, exact } = {}) {
       await page.waitForTimeout(100);
       await page.keyboard.press('Shift+End');
       await page.waitForTimeout(100);
-      await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(String(text))})`);
-      await page.keyboard.press('Control+V');
+      await pasteText(text);
       await page.waitForTimeout(500);
     }
   } else {
@@ -4858,8 +4934,7 @@ export async function filterList(text, { field, exact } = {}) {
     await page.click(`[id="${dialogInfo.patternId}"]`);
     await page.waitForTimeout(200);
     await page.keyboard.press('Control+A');
-    await page.evaluate(`navigator.clipboard.writeText(${JSON.stringify(String(text))})`);
-    await page.keyboard.press('Control+V');
+    await pasteText(text);
     await page.waitForTimeout(300);
 
     if (dialogInfo.isRef) {

.claude/skills/web-test/scripts/run.mjs

@@ -1,5 +1,5 @@
 #!/usr/bin/env node
-// web-test run v1.14 — CLI runner for 1C web client automation
+// web-test run v1.16 — CLI runner for 1C web client automation
 // Source: https://github.com/Nikolay-Shirokov/cc-1c-skills
 /**
  * CLI runner for 1C web client automation.
@@ -39,6 +39,14 @@ const flags = {
 };
 const args = rawArgs.filter(a => !a.startsWith('--'));
 
+// Clipboard preservation: default ON. Disabled by --no-preserve-clipboard CLI flag
+// or WEB_TEST_PRESERVE_CLIPBOARD=0 env. cmdTest may further disable via config.
+// Forwarded to browser.setPreserveClipboard() — narrow save/restore lives around
+// each writeText+Ctrl+V pair inside pasteText() in browser.mjs.
+const preserveClipboard = !rawArgs.includes('--no-preserve-clipboard')
+  && process.env.WEB_TEST_PRESERVE_CLIPBOARD !== '0';
+browser.setPreserveClipboard(preserveClipboard);
+
 function parseExecTimeoutMs(argv) {
   const DEFAULT_MS = 30 * 60 * 1000;
   const flagMs = argv.find(a => a.startsWith('--timeout='));
@@ -449,6 +457,10 @@ async function cmdTest(rawArgs) {
   if (!tags && config.tags) tags = config.tags;
   opts.timeout = ownArgs.some(a => a.startsWith('--timeout=')) ? opts.timeout : (config.timeout || opts.timeout);
   opts.retry = ownArgs.some(a => a.startsWith('--retry=')) ? opts.retry : (config.retries || opts.retry);
+  // Clipboard preservation: CLI flag wins (already applied at boot), else config can disable.
+  if (config.preserveClipboard === false && !ownArgs.includes('--no-preserve-clipboard')) {
+    browser.setPreserveClipboard(false);
+  }
   opts.record = opts.record || !!config.record;
   opts.screenshot = opts.screenshot || config.screenshot || 'on-failure';
   if (!['on-failure', 'every-step', 'off'].includes(opts.screenshot)) {
@@ -1225,6 +1237,10 @@ Commands:
 Options for exec:
   --no-record              Skip video recording (record() becomes no-op)
 
+Global options (any command):
+  --no-preserve-clipboard  Don't save/restore OS clipboard around action calls.
+                           Default: on (env: WEB_TEST_PRESERVE_CLIPBOARD=0 to disable globally).
+
 Options for test:
   --tags=smoke,crud        Filter tests by tags
   --grep=pattern           Filter tests by name (regex)

tests/web-test/webtest.config.mjs

@@ -21,6 +21,12 @@ export default {
   //   extension may not load (Playwright limitation). Use only when really needed.
   timeout: 60000,
 
+  // OS clipboard preservation: default `true`. Around every action call the engine
+  // saves the full clipboard contents (any MIME types via `navigator.clipboard.read()`)
+  // and restores them after, so a local user can copy/paste in parallel with a test run.
+  // Set to `false` to disable for this suite. CLI flag `--no-preserve-clipboard` overrides.
+  preserveClipboard: true,
+
   // Allure severity policy: inverted map "уровень → теги, попадающие в этот уровень".
   // Резолв (run.mjs:resolveSeverity):
   //   1. explicit `export const severity` в тесте — выигрывает всегда;