chore: import upstream snapshot with attribution

2026-07-13 12:25:07 +08:00
commit a26e856398
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+// ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
+// ┃ ██████ ██████ ██████       █      █      █      █      █ █▄  ▀███ █       ┃
+// ┃ ▄▄▄▄▄█ █▄▄▄▄▄ ▄▄▄▄▄█  ▀▀▀▀▀█▀▀▀▀▀ █ ▀▀▀▀▀█ ████████▌▐███ ███▄  ▀█ █ ▀▀▀▀▀ ┃
+// ┃ █▀▀▀▀▀ █▀▀▀▀▀ █▀██▀▀ ▄▄▄▄▄ █ ▄▄▄▄▄█ ▄▄▄▄▄█ ████████▌▐███ █████▄   █ ▄▄▄▄▄ ┃
+// ┃ █      ██████ █  ▀█▄       █ ██████      █      ███▌▐███ ███████▄ █       ┃
+// ┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫
+// ┃ Copyright (c) 2017, the Perspective Authors.                              ┃
+// ┃ ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ ┃
+// ┃ This file is part of the Perspective library, distributed under the terms ┃
+// ┃ of the [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). ┃
+// ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
+
+import "/node_modules/@perspective-dev/viewer/dist/cdn/perspective-viewer.js";
+import perspective from "/node_modules/@perspective-dev/client/dist/cdn/perspective.js";
+
+// Two-viewer fixture: both viewers bind to a single shared table so
+// Suite E can drive each chart independently and verify cross-chart
+// isolation (a pan on viewer A must not affect viewer B's plot
+// region; a streaming `table.update` on viewer A's table — which is
+// also viewer B's table — must surface as data updates on both
+// without blanking either).
+async function load() {
+    const resp = await fetch(
+        "/node_modules/@perspective-dev/test/assets/superstore.csv",
+    );
+    const csv = await resp.text();
+    const worker = await perspective.worker();
+    const table = await worker.table(csv, {
+        index: "Row ID",
+        name: "load-viewer-two-csv",
+    });
+
+    const viewers = document.querySelectorAll("perspective-viewer");
+    for (const viewer of viewers) {
+        await viewer.load(table);
+    }
+
+    window.__TEST_WORKER__ = worker;
+}
+
+await load();
+window.__TEST_PERSPECTIVE_READY__ = true;