feat: support props.locked for setActiveTool (#7153)

Co-authored-by: Aakansha Doshi <aakansha1216@gmail.com>

src/tests/tool.test.tsx

@@ -0,0 +1,55 @@
+import { Excalidraw } from "../packages/excalidraw/index";
+import { ExcalidrawImperativeAPI } from "../types";
+import { resolvablePromise } from "../utils";
+import { render } from "./test-utils";
+import { Pointer } from "./helpers/ui";
+
+describe("setActiveTool()", () => {
+  const h = window.h;
+
+  let excalidrawAPI: ExcalidrawImperativeAPI;
+
+  const mouse = new Pointer("mouse");
+
+  beforeEach(async () => {
+    const excalidrawAPIPromise = resolvablePromise<ExcalidrawImperativeAPI>();
+    await render(
+      <Excalidraw ref={(api) => excalidrawAPIPromise.resolve(api as any)} />,
+    );
+    excalidrawAPI = await excalidrawAPIPromise;
+  });
+
+  it("should expose setActiveTool on package API", () => {
+    expect(excalidrawAPI.setActiveTool).toBeDefined();
+    expect(excalidrawAPI.setActiveTool).toBe(h.app.setActiveTool);
+  });
+
+  it("should set the active tool type", async () => {
+    expect(h.state.activeTool.type).toBe("selection");
+    excalidrawAPI.setActiveTool({ type: "rectangle" });
+    expect(h.state.activeTool.type).toBe("rectangle");
+
+    mouse.down(10, 10);
+    mouse.up(20, 20);
+
+    expect(h.state.activeTool.type).toBe("selection");
+  });
+
+  it("should support tool locking", async () => {
+    expect(h.state.activeTool.type).toBe("selection");
+    excalidrawAPI.setActiveTool({ type: "rectangle", locked: true });
+    expect(h.state.activeTool.type).toBe("rectangle");
+
+    mouse.down(10, 10);
+    mouse.up(20, 20);
+
+    expect(h.state.activeTool.type).toBe("rectangle");
+  });
+
+  it("should set custom tool", async () => {
+    expect(h.state.activeTool.type).toBe("selection");
+    excalidrawAPI.setActiveTool({ type: "custom", customType: "comment" });
+    expect(h.state.activeTool.type).toBe("custom");
+    expect(h.state.activeTool.customType).toBe("comment");
+  });
+});