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2026-07-12 21:26:08 +08:00
commit 9dd41afd48
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+import { describe, it } from "node:test";
+import assert from "node:assert/strict";
+import {
+  GRAPH_TOOLBAR_PANEL_KEY,
+  nextToolbarPanelState,
+  readToolbarPanelState,
+  shouldBlankClickCloseToolbar,
+  toolbarPanelStateAfterBlankClick,
+  writeToolbarPanelState
+} from "../src/render/toolbar";
+
+describe("graph toolbar state", () => {
+  it("defaults to a closed toolbar panel", () => {
+    assert.equal(readToolbarPanelState(memoryStorage()), "closed");
+  });
+
+  it("persists open and closed panel state", () => {
+    const storage = memoryStorage();
+
+    writeToolbarPanelState(storage, "filters");
+    assert.equal(storage.getItem(GRAPH_TOOLBAR_PANEL_KEY), "filters");
+    assert.equal(readToolbarPanelState(storage), "filters");
+
+    writeToolbarPanelState(storage, "closed");
+    assert.equal(readToolbarPanelState(storage), "closed");
+  });
+
+  it("toggles the same panel closed and switches to another panel", () => {
+    assert.equal(nextToolbarPanelState("closed", "filters"), "filters");
+    assert.equal(nextToolbarPanelState("filters", "filters"), "closed");
+    assert.equal(nextToolbarPanelState("filters", "legend"), "legend");
+  });
+
+  it("lets blank canvas clicks close an open popover before graph gestures run", () => {
+    assert.equal(shouldBlankClickCloseToolbar("filters"), true);
+    assert.equal(toolbarPanelStateAfterBlankClick("filters"), "closed");
+    assert.equal(shouldBlankClickCloseToolbar("closed"), false);
+    assert.equal(toolbarPanelStateAfterBlankClick("closed"), "closed");
+  });
+});
+
+function memoryStorage(): Storage {
+  const values = new Map<string, string>();
+  return {
+    get length() {
+      return values.size;
+    },
+    clear() {
+      values.clear();
+    },
+    getItem(key: string) {
+      return values.get(key) ?? null;
+    },
+    key(index: number) {
+      return Array.from(values.keys())[index] ?? null;
+    },
+    removeItem(key: string) {
+      values.delete(key);
+    },
+    setItem(key: string, value: string) {
+      values.set(key, value);
+    }
+  };
+}