Migrate to Vitest (#483)

* Migrate to Vitest

* `skipLibCheck` for now

src/__snapshots__/run.test.ts.snap

@@ -1,6 +1,6 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
 
-exports[`version creates simple PR 1`] = `
+exports[`version > creates simple PR 1`] = `
 [
   {
     "base": "some-branch",
@@ -33,7 +33,7 @@ exports[`version creates simple PR 1`] = `
 ]
 `;
 
-exports[`version does not include any release information if a message with simplified release info exceeds size limit 1`] = `
+exports[`version > does not include any release information if a message with simplified release info exceeds size limit 1`] = `
 [
   {
     "base": "some-branch",
@@ -51,7 +51,7 @@ exports[`version does not include any release information if a message with simp
 ]
 `;
 
-exports[`version does not include changelog entries if full message exceeds size limit 1`] = `
+exports[`version > does not include changelog entries if full message exceeds size limit 1`] = `
 [
   {
     "base": "some-branch",
@@ -73,7 +73,7 @@ exports[`version does not include changelog entries if full message exceeds size
 ]
 `;
 
-exports[`version doesn't include ignored package that got a dependency update in the PR body 1`] = `
+exports[`version > doesn't include ignored package that got a dependency update in the PR body 1`] = `
 [
   {
     "base": "some-branch",
@@ -95,7 +95,7 @@ exports[`version doesn't include ignored package that got a dependency update in
 ]
 `;
 
-exports[`version only includes bumped packages in the PR body 1`] = `
+exports[`version > only includes bumped packages in the PR body 1`] = `
 [
   {
     "base": "some-branch",

src/__snapshots__/utils.test.ts.snap

@@ -1,4 +1,4 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
 
 exports[`it sorts the things right 1`] = `
 [

src/run.test.ts

@@ -3,11 +3,12 @@ import writeChangeset from "@changesets/write";
 import fixturez from "fixturez";
 import fs from "fs-extra";
 import path from "path";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 import { Git } from "./git";
 import { setupOctokit } from "./octokit";
 import { runVersion } from "./run";
 
-jest.mock("@actions/github", () => ({
+vi.mock("@actions/github", () => ({
   context: {
     repo: {
       owner: "changesets",
@@ -20,16 +21,16 @@ jest.mock("@actions/github", () => ({
     rest: mockedGithubMethods,
   }),
 }));
-jest.mock("./git");
-jest.mock("@changesets/ghcommit/git");
+vi.mock("./git");
+vi.mock("@changesets/ghcommit/git");
 
 let mockedGithubMethods = {
   pulls: {
-    create: jest.fn(),
-    list: jest.fn(),
+    create: vi.fn(),
+    list: vi.fn(),
   },
   repos: {
-    createRelease: jest.fn(),
+    createRelease: vi.fn(),
   },
 };
 
@@ -46,7 +47,7 @@ const writeChangesets = (changesets: Changeset[], cwd: string) => {
 };
 
 beforeEach(() => {
-  jest.clearAllMocks();
+  vi.clearAllMocks();
 });
 
 describe("version", () => {

src/utils.test.ts

@@ -1,4 +1,5 @@
-import { getChangelogEntry, BumpLevels, sortTheThings } from "./utils";
+import { expect, test } from "vitest";
+import { BumpLevels, getChangelogEntry, sortTheThings } from "./utils";
 
 let changelog = `# @keystone-alpha/email