test: 💍 bun conversions

server/tests/contUse/update/updateContUse2.test.ts

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+import { LegacyVersion, OnDecrease, OnIncrease } from "@autumn/shared";
+import { beforeAll, describe, expect, test } from "bun:test";
+import chalk from "chalk";
+import { addWeeks } from "date-fns";
+import { replaceItems } from "tests/attach/utils.js";
+import ctx from "tests/utils/testInitUtils/createTestContext.js";
+import { TestFeature } from "tests/setup/v2Features.js";
+import { attachAndExpectCorrect } from "tests/utils/expectUtils/expectAttach.js";
+import { expectSubQuantityCorrect } from "tests/utils/expectUtils/expectContUseUtils.js";
+import { advanceTestClock } from "tests/utils/stripeUtils.js";
+import { AutumnInt } from "@/external/autumn/autumnCli.js";
+import { constructArrearProratedItem } from "@/utils/scriptUtils/constructItem.js";
+import { constructProduct } from "@/utils/scriptUtils/createTestProducts.js";
+import { initCustomerV3 } from "@/utils/scriptUtils/testUtils/initCustomerV3.js";
+import { initProductsV0 } from "@/utils/scriptUtils/testUtils/initProductsV0.js";
+
+const userItem = constructArrearProratedItem({
+	featureId: TestFeature.Users,
+	pricePerUnit: 50,
+	includedUsage: 1,
+	config: {
+		on_increase: OnIncrease.BillImmediately,
+		on_decrease: OnDecrease.None,
+	},
+});
+
+export const pro = constructProduct({
+	items: [userItem],
+	type: "pro",
+});
+
+const testCase = "updateContUse2";
+
+describe(`${chalk.yellowBright(`contUse/update/${testCase}: Testing update cont use, remove included usage`)}`, () => {
+	const customerId = testCase;
+	const autumn: AutumnInt = new AutumnInt({ version: LegacyVersion.v1_4 });
+	let testClockId: string;
+	const curUnix = new Date().getTime();
+
+	beforeAll(async () => {
+		await initProductsV0({
+			ctx,
+			products: [pro],
+			prefix: testCase,
+			customerId,
+		});
+
+		const { testClockId: testClockId1 } = await initCustomerV3({
+			ctx,
+			customerId,
+			customerData: {},
+			attachPm: "success",
+			withTestClock: true,
+		});
+
+		testClockId = testClockId1!;
+	});
+
+	let usage = 0;
+	const firstEntities = [
+		{
+			id: "1",
+			name: "test",
+			feature_id: TestFeature.Users,
+		},
+		{
+			id: "2",
+			name: "test2",
+			feature_id: TestFeature.Users,
+		},
+		{
+			id: "3",
+			name: "test3",
+			feature_id: TestFeature.Users,
+		},
+	];
+
+	test("should create entity, then attach pro", async () => {
+		await autumn.entities.create(customerId, firstEntities);
+		usage += 3;
+
+		await attachAndExpectCorrect({
+			autumn,
+			customerId,
+			product: pro,
+			stripeCli: ctx.stripeCli,
+			db: ctx.db,
+			org: ctx.org,
+			env: ctx.env,
+			usage: [
+				{
+					featureId: TestFeature.Users,
+					value: usage,
+				},
+			],
+		});
+	});
+
+	const reduceUsageBy = 1;
+	const newItem = constructArrearProratedItem({
+		featureId: TestFeature.Users,
+		pricePerUnit: 50,
+		includedUsage: (userItem.included_usage as number) - reduceUsageBy,
+		config: {
+			on_increase: OnIncrease.BillImmediately,
+			on_decrease: OnDecrease.None,
+		},
+	});
+
+	test("should update product with reduced included usage", async () => {
+		await advanceTestClock({
+			stripeCli: ctx.stripeCli,
+			testClockId,
+			advanceTo: addWeeks(new Date(), 1).getTime(),
+			waitForSeconds: 5,
+		});
+
+		const customItems = replaceItems({
+			featureId: TestFeature.Users,
+			items: pro.items,
+			newItem,
+		});
+
+		const preview = await autumn.attachPreview({
+			customer_id: customerId,
+			product_id: pro.id,
+			is_custom: true,
+			items: customItems,
+		});
+
+		await autumn.attach({
+			customer_id: customerId,
+			product_id: pro.id,
+			is_custom: true,
+			items: customItems,
+		});
+
+		const customer = await autumn.customers.get(customerId);
+		const invoices = customer.invoices;
+		expect(invoices.length).toBe(2);
+		expect(invoices[0].total).toBe(preview.due_today.total);
+
+		// Usage stays the same...
+		await expectSubQuantityCorrect({
+			stripeCli: ctx.stripeCli,
+			productId: pro.id,
+			db: ctx.db,
+			org: ctx.org,
+			env: ctx.env,
+			customerId,
+			usage,
+			numReplaceables: 0,
+		});
+	});
+	return;
+});