version: initial tests

src/version.test.ts

@@ -0,0 +1,36 @@
+import { expect, test } from "vitest";
+
+import { isEqual } from "./isEqual.test";
+import { delayed, sleep } from "./promise";
+import { Sheet } from "./sheet";
+
+test("test version for ValueCell", async () => {
+  const proxy = new Sheet(isEqual).newProxy();
+  const a = proxy.new(1);
+  expect(a.version).toBe(0);
+  a.set(2);
+  expect(a.version).toBe(1);
+  a.update((v) => v + 1);
+  expect(a.version).toBe(2);
+  a.update((v) => delayed(v + 1, 10));
+  expect(a.version).toBe(2);
+  await sleep(20);
+  expect(a.version).toBe(3);
+});
+
+test("test version for MapCell", async () => {
+  const proxy = new Sheet(isEqual).newProxy();
+  const a = proxy.new(1);
+  const b = a.map((v) => v + 1);
+  expect(b.version).toBe(1);
+  a.set(2);
+  expect(b.version).toBe(2);
+  const c = a.map((v) => delayed(v * 2, 10));
+  expect(c.version).toBe(0);
+  await sleep(20);
+  expect(c.version).toBe(1);
+  a.set(3);
+  expect(c.version).toBe(1);
+  await sleep(20);
+  expect(c.version).toBe(2);
+});