From 28477225fc3a8c3b449ecd5f64a7c98f5541069f Mon Sep 17 00:00:00 2001
From: yuhao900914 <yuhao900914@gmail.com>
Date: Mon, 17 Oct 2022 17:21:03 -0700
Subject: [PATCH] feat: flag configs clear up

---
 __tests__/client.test.ts | 13 +++++++++++++
 src/experimentClient.ts  |  8 ++++++++
 src/stubClient.ts        |  2 ++
 3 files changed, 23 insertions(+)

diff --git a/__tests__/client.test.ts b/__tests__/client.test.ts
index 00d1e37..8708170 100644
--- a/__tests__/client.test.ts
+++ b/__tests__/client.test.ts
@@ -362,3 +362,16 @@ test('configure httpClient, success', async () => {
   const v = client.variant('flag');
   expect(v).toEqual({ value: 'key' });
 });
+
+test('ExperimentClient.clear, clear all variants in the cache and storage', async () => {
+  const client = new ExperimentClient(API_KEY, {
+    httpClient: new TestHttpClient(),
+  });
+  await client.fetch(testUser);
+  const variant = client.variant(serverKey);
+  expect(variant).toEqual(serverVariant);
+
+  client.clear();
+  var clearedVariants = client.all();
+  expect(clearedVariants).toEqual({});
+});
diff --git a/src/experimentClient.ts b/src/experimentClient.ts
index f06955a..fe542fb 100644
--- a/src/experimentClient.ts
+++ b/src/experimentClient.ts
@@ -172,6 +172,14 @@ export class ExperimentClient implements Client {
     return { ...this.secondaryVariants(), ...this.sourceVariants() };
   }
 
+  /**
+   * Clear all variants in the cache and storage.
+   */
+  public clear() {
+    this.storage.clear();
+    this.storage.save();
+  }
+
   /**
    * Get a copy of the internal {@link ExperimentUser} object if it is set.
    *
diff --git a/src/stubClient.ts b/src/stubClient.ts
index e830a70..2b6df12 100644
--- a/src/stubClient.ts
+++ b/src/stubClient.ts
@@ -35,5 +35,7 @@ export class StubExperimentClient implements Client {
     return {};
   }
 
+  public clear() {}
+
   public exposure(_key: string): void {}
 }