integrate the cache logic to entry points

__tests__/cleanup-java.test.ts

@@ -0,0 +1,51 @@
+import { mkdtempSync } from 'fs';
+import { tmpdir } from 'os';
+import { join } from 'path';
+import { restore, save } from '../src/cache';
+import { run as cleanup } from '../src/cleanup-java';
+import * as fs from 'fs';
+import * as os from 'os';
+import * as core from '@actions/core';
+import * as cache from '@actions/cache';
+
+describe('cleanup', () => {
+  let spyInfo: jest.SpyInstance<void, Parameters<typeof core.info>>;
+  let spyWarning: jest.SpyInstance<void, Parameters<typeof core.warning>>;
+
+  let spyCacheSave: jest.SpyInstance<
+    ReturnType<typeof cache.saveCache>,
+    Parameters<typeof cache.saveCache>
+  >;
+  beforeEach(() => {
+    spyInfo = jest.spyOn(core, 'info');
+    spyWarning = jest.spyOn(core, 'warning');
+    spyCacheSave = jest.spyOn(cache, 'saveCache');
+  });
+
+  it('does not fail nor warn even when the save provess throws a ReserveCacheError', async () => {
+    spyCacheSave.mockImplementation((paths: string[], key: string) =>
+      Promise.reject(
+        new cache.ReserveCacheError(
+          'Unable to reserve cache with key, another job may be creating this cache.'
+        )
+      )
+    );
+    jest.spyOn(core, 'getInput').mockImplementation((name: string) => {
+      return name === 'cache' ? 'gradle' : '';
+    });
+    await cleanup();
+    expect(spyCacheSave).toBeCalled();
+    expect(spyWarning).not.toBeCalled();
+  });
+
+  it('does not fail even though the save process throws error', async () => {
+    spyCacheSave.mockImplementation((paths: string[], key: string) =>
+      Promise.reject(new Error('Unexpected error'))
+    );
+    jest.spyOn(core, 'getInput').mockImplementation((name: string) => {
+      return name === 'cache' ? 'gradle' : '';
+    });
+    await cleanup();
+    expect(spyCacheSave).toBeCalled();
+  });
+});