use jest for CI

test/rule/beforeSendResponse.js

@@ -0,0 +1,45 @@
+const { basicProxyRequest, proxyServerWithRule, } = require('../util.js');
+
+const RULE_REPLACE_HEADER_KEY = 'rule_replace_header_key';
+const RULE_REPLACE_HEADER_VALUE = 'rule_replace_header_value';
+const RULE_REPLACE_BODY = 'RULE_REPLACE_BODY';
+const rule = {
+  *beforeSendResponse(requestDetail, responseDetail) {
+    if (requestDetail.url.indexOf('/uuid') >= 0) {
+      const newResponse = responseDetail.response;
+      newResponse.header[RULE_REPLACE_HEADER_KEY] = RULE_REPLACE_HEADER_VALUE;
+      newResponse.body = RULE_REPLACE_BODY;
+      newResponse.statusCode = 502;
+      return {
+        response: newResponse,
+      };
+    }
+  },
+};
+
+describe('Rule replaceResponseData', () => {
+  let proxyServer;
+  let proxyPort;
+  let proxyHost;
+
+  beforeAll(async () => {
+    proxyServer = await proxyServerWithRule(rule);
+    proxyPort = proxyServer.proxyPort;
+    proxyHost = `http://localhost:${proxyPort}`;
+  });
+
+  afterAll(() => {
+    return proxyServer && proxyServer.close();
+  });
+
+  it('Should replace the header and body', async () => {
+    const url = 'http://httpbin.org/uuid';
+    await basicProxyRequest(proxyHost, 'GET', url).then((result) => {
+      const proxyRes = result.response;
+      const body = result.body;
+      expect(proxyRes.statusCode).toBe(502);
+      expect(proxyRes.headers[RULE_REPLACE_HEADER_KEY]).toBe(RULE_REPLACE_HEADER_VALUE);
+      expect(body).toBe(RULE_REPLACE_BODY);
+    });
+  });
+});