cache: move gha cache save to post state

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

__tests__/cache.test.itg.ts

@@ -0,0 +1,40 @@
+/**
+ * Copyright 2024 actions-toolkit authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import path from 'path';
+import {describe, expect, it} from '@jest/globals';
+
+import {Cache} from '../src/cache';
+
+// prettier-ignore
+const tmpDir = path.join(process.env.TEMP || '/tmp', 'cache-jest');
+
+const fixturesDir = path.join(__dirname, 'fixtures');
+
+describe('cache', () => {
+  it('github-repo', async () => {
+    const r = (Math.random() + 1).toString(36).substring(7);
+    const htcName = `cache-test-github-repo-${r}`;
+    const c = new Cache({
+      htcName: htcName,
+      htcVersion: `v1.0.0+${r}`,
+      baseCacheDir: path.join(tmpDir, '.cache-test'),
+      cacheFile: 'github-repo.json'
+    });
+    expect(await c.save(path.join(fixturesDir, 'github-repo.json'))).not.toEqual('');
+    expect(await c.find()).not.toEqual('');
+  });
+});