switch to ESM and update config/test wiring

.prettierrc.json

@@ -6,6 +6,5 @@
   "singleQuote": true,
   "trailingComma": "none",
   "bracketSpacing": false,
-  "arrowParens": "avoid",
-  "parser": "typescript"
+  "arrowParens": "avoid"
 }

__tests__/context.test.ts

@@ -1,23 +1,12 @@
-import {afterEach, beforeEach, describe, expect, test, it, jest} from '@jest/globals';
-import * as dotenv from 'dotenv';
-import * as fs from 'fs';
-import * as path from 'path';
-import {Context} from '@actions/github/lib/context';
-import {Git} from '@docker/actions-toolkit/lib/git';
-import {GitHub} from '@docker/actions-toolkit/lib/github';
-import {Toolkit} from '@docker/actions-toolkit/lib/toolkit';
+import {beforeEach, describe, expect, test, it, vi} from 'vitest';
+import {Context} from '@actions/github/lib/context.js';
+import {Git} from '@docker/actions-toolkit/lib/git.js';
+import {Toolkit} from '@docker/actions-toolkit/lib/toolkit.js';
 
-import {ContextSource, getContext, getInputs, Inputs} from '../src/context';
+import * as context from '../src/context.js';
 
 const toolkit = new Toolkit({githubToken: 'fake-github-token'});
 
-beforeEach(() => {
-  jest.clearAllMocks();
-  jest.spyOn(GitHub, 'context', 'get').mockImplementation((): Context => {
-    return new Context();
-  });
-});
-
 describe('getInputs', () => {
   beforeEach(() => {
     process.env = Object.keys(process.env).reduce((object, key) => {
@@ -29,14 +18,14 @@ describe('getInputs', () => {
   });
 
   // prettier-ignore
-  test.each([
+  const cases: [number, Map<string, string>, context.Inputs][] = [
     [
       0,
       new Map<string, string>([
         ['images', 'moby/buildkit\nghcr.io/moby/mbuildkit'],
       ]),
       {
-        context: ContextSource.workflow,
+        context: context.ContextSource.workflow,
         bakeTarget: 'docker-metadata-action',
         flavor: [],
         githubToken: '',
@@ -47,7 +36,7 @@ describe('getInputs', () => {
         sepTags: '\n',
         sepAnnotations: '\n',
         tags: [],
-      } as Inputs
+      }
     ],
     [
       1,
@@ -59,7 +48,7 @@ describe('getInputs', () => {
         ['sep-annotations', ',']
       ]),
       {
-        context: ContextSource.workflow,
+        context: context.ContextSource.workflow,
         bakeTarget: 'metadata',
         flavor: [],
         githubToken: '',
@@ -70,15 +59,15 @@ describe('getInputs', () => {
         sepTags: ',',
         sepAnnotations: ',',
         tags: [],
-      } as Inputs
+      }
     ],
     [
       2,
       new Map<string, string>([
         ['images', 'moby/buildkit\n#comment\nghcr.io/moby/mbuildkit'],
       ]),
       {
-        context: ContextSource.workflow,
+        context: context.ContextSource.workflow,
         bakeTarget: 'docker-metadata-action',
         flavor: [],
         githubToken: '',
@@ -89,53 +78,39 @@ describe('getInputs', () => {
         sepTags: '\n',
         sepAnnotations: '\n',
         tags: [],
-      } as Inputs
+      }
     ],
-  ])(
-    '[%d] given %p as inputs, returns %p',
-    async (num: number, inputs: Map<string, string>, expected: Inputs) => {
-      inputs.forEach((value: string, name: string) => {
-        setInput(name, value);
-      });
-      expect(await getInputs()).toEqual(expected);
-    }
-  );
+  ];
+  test.each(cases)('[%d] given %o as inputs, returns %o', async (num: number, inputs: Map<string, string>, expected: context.Inputs) => {
+    inputs.forEach((value: string, name: string) => {
+      setInput(name, value);
+    });
+    const res = await context.getInputs();
+    expect(res).toEqual(expected);
+  });
 });
 
 describe('getContext', () => {
-  const originalEnv = process.env;
-  beforeEach(() => {
-    jest.resetModules();
-    process.env = {
-      ...originalEnv,
-      ...dotenv.parse(fs.readFileSync(path.join(__dirname, 'fixtures/event_create_branch.env')))
-    };
-  });
-  afterEach(() => {
-    process.env = originalEnv;
-  });
-
   it('workflow', async () => {
-    const context = await getContext(ContextSource.workflow, toolkit);
-    expect(context.ref).toEqual('refs/heads/dev');
-    expect(context.sha).toEqual('5f3331d7f7044c18ca9f12c77d961c4d7cf3276a');
-    expect(context.commitDate).toEqual(new Date('2024-11-13T13:42:28.000Z'));
+    const ctx = await context.getContext(context.ContextSource.workflow, toolkit);
+    expect(ctx.ref).toEqual('refs/heads/dev');
+    expect(ctx.sha).toEqual('5f3331d7f7044c18ca9f12c77d961c4d7cf3276a');
+    expect(ctx.commitDate).toEqual(new Date('2024-11-13T13:42:28.000Z'));
   });
-
   it('git', async () => {
-    jest.spyOn(Git, 'context').mockImplementation((): Promise<Context> => {
+    vi.spyOn(Git, 'context').mockImplementation((): Promise<Context> => {
       return Promise.resolve({
         ref: 'refs/heads/git-test',
         sha: 'git-test-sha'
       } as Context);
     });
-    jest.spyOn(Git, 'commitDate').mockImplementation(async (): Promise<Date> => {
+    vi.spyOn(Git, 'commitDate').mockImplementation(async (): Promise<Date> => {
       return new Date('2023-01-01T13:42:28.000Z');
     });
-    const context = await getContext(ContextSource.git, toolkit);
-    expect(context.ref).toEqual('refs/heads/git-test');
-    expect(context.sha).toEqual('git-test-sha');
-    expect(context.commitDate).toEqual(new Date('2023-01-01T13:42:28.000Z'));
+    const ctx = await context.getContext(context.ContextSource.git, toolkit);
+    expect(ctx.ref).toEqual('refs/heads/git-test');
+    expect(ctx.sha).toEqual('git-test-sha');
+    expect(ctx.commitDate).toEqual(new Date('2023-01-01T13:42:28.000Z'));
   });
 });