Add Support for JetBrains Runtime

- Add Installer, Models
- Includes Tests & Test Manifest Data
- Add to `e2e-versions.yml`
- Run `npm run build`
- Update README.md

__tests__/distributors/jetbrains-installer.test.ts

@@ -0,0 +1,109 @@
+import {HttpClient} from '@actions/http-client';
+import os from 'os';
+import fs from 'fs';
+import {JetBrainsDistribution} from '../../src/distributions/jetbrains/installer';
+import {JavaInstallerOptions} from '../../src/distributions/base-models';
+
+import manifestData from '../data/jetbrains.json';
+
+describe('getAvailableVersions', () => {
+  let spyHttpClient: jest.SpyInstance;
+
+  beforeEach(() => {
+    spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
+    spyHttpClient.mockReturnValue({
+      statusCode: 200,
+      headers: {},
+      result: []
+    });
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    jest.restoreAllMocks();
+  });
+
+  it('load available versions', async () => {
+    spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
+    spyHttpClient
+      .mockReturnValueOnce({
+        statusCode: 200,
+        headers: {},
+        result: manifestData as any
+      })
+      .mockReturnValueOnce({
+        statusCode: 200,
+        headers: {},
+        result: manifestData as any
+      })
+      .mockReturnValueOnce({
+        statusCode: 200,
+        headers: {},
+        result: []
+      });
+
+    const distribution = new JetBrainsDistribution({
+      version: '17',
+      architecture: 'x64',
+      packageType: 'jdk',
+      checkLatest: false
+    });
+    const availableVersions = await distribution['getAvailableVersions']();
+    expect(availableVersions).not.toBeNull();
+    expect(availableVersions.length).toBe(manifestData.length * 2);
+  });
+});
+
+describe('findPackageForDownload', () => {
+  it.each([
+    ['17', '17.0.11+1207.24'],
+    ['11.0', '11.0.16+2043.64'],
+    ['11.0.11', '11.0.11+1542.1'],
+    ['21.0.2', '21.0.2+375.1'],
+    ['21', '21.0.3+465.3'],
+    ['x', '21.0.3+465.3']
+  ])('version is resolved correctly %s -> %s', async (input, expected) => {
+    const distribution = new JetBrainsDistribution(
+      {
+        version: input,
+        architecture: 'x64',
+        packageType: 'jdk',
+        checkLatest: false
+      },
+    );
+    distribution['getAvailableVersions'] = async () => manifestData as any;
+    const resolvedVersion = await distribution['findPackageForDownload'](input);
+    expect(resolvedVersion.version).toBe(expected);
+  });
+
+  it('version is not found', async () => {
+    const distribution = new JetBrainsDistribution(
+      {
+        version: '8.0.452',
+        architecture: 'x64',
+        packageType: 'jdk',
+        checkLatest: false
+      },
+    );
+    distribution['getAvailableVersions'] = async () => manifestData as any;
+    await expect(distribution['findPackageForDownload']('8.x')).rejects.toThrow(
+      /Could not find satisfied version for SemVer */
+    );
+  });
+
+  it('version list is empty', async () => {
+    const distribution = new JetBrainsDistribution(
+      {
+        version: '8',
+        architecture: 'x64',
+        packageType: 'jdk',
+        checkLatest: false
+      },
+    );
+    distribution['getAvailableVersions'] = async () => [];
+    await expect(distribution['findPackageForDownload']('8')).rejects.toThrow(
+      /Could not find satisfied version for SemVer */
+    );
+  });
+});