use jest for CI

test/rule/beforeSendRequest.spec.js

@@ -0,0 +1,93 @@
+const fs = require('fs');
+const path = require('path');
+const { basicProxyRequest, proxyServerWithRule, } = require('../util.js');
+
+const RULE_PAYLOAD = 'this is something in rule';
+const RULE_REPLACE_HEADER_KEY = 'rule_replace_header_key';
+const RULE_REPLACE_HEADER_VALUE = 'rule_replace_header_value';
+
+const rule = {
+  *beforeSendRequest(requestDetail) {
+    const reqUrl = requestDetail.url;
+    if (reqUrl.indexOf('/post') >= 0) {
+      const requestOptions = requestDetail.requestOptions;
+      requestOptions.path = '/put';
+      requestOptions.method = 'PUT';
+      return {
+        requestOptions,
+        requestData: RULE_PAYLOAD,
+      };
+    } else if (reqUrl.indexOf('/status/302') >= 0) {
+      return {
+        response: {
+          statusCode: 404,
+          header: {
+            [RULE_REPLACE_HEADER_KEY]: RULE_REPLACE_HEADER_VALUE,
+            'content-type': 'plain/text',
+          },
+          body: RULE_PAYLOAD
+        }
+      };
+    } else if (reqUrl.indexOf('/should_be_replaced') >= 0) {
+      const requestOptions = requestDetail.requestOptions;
+      requestOptions.hostname = 'httpbin.org';
+      requestOptions.path = '/status/302';
+      requestOptions.port = '443';
+      return {
+        protocol: 'https',
+        requestOptions,
+      };
+    }
+  }
+};
+
+describe('Rule replaceRequestData', () => {
+  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 request data in proxy if the assertion is true', async () => {
+    const url = 'http://httpbin.org/post';
+    const payloadStream = fs.createReadStream(path.resolve(__dirname, '../fixtures/image.png'));
+    const postHeaders = {
+      anyproxy_header: 'header_value',
+    };
+  
+    await basicProxyRequest(proxyHost, 'POST', url, postHeaders, {}, payloadStream).then((result) => {
+      const proxyRes = result.response;
+      const body = JSON.parse(result.body);
+      expect(proxyRes.statusCode).toBe(200);
+      expect(body.data).toEqual(RULE_PAYLOAD);
+      expect(body.url.indexOf('/put')).toBeGreaterThan(0);
+    });
+  });
+
+  it('should respond content specified in rule', async () => {
+    const url = 'http://httpbin.org/status/302';  
+    await basicProxyRequest(proxyHost, 'GET', url).then((result) => {
+      const proxyRes = result.response;
+      const body = result.body;
+      expect(body).toBe(RULE_PAYLOAD);
+      expect(proxyRes.statusCode).toBe(404);
+      expect(proxyRes.headers[RULE_REPLACE_HEADER_KEY]).toBe(RULE_REPLACE_HEADER_VALUE);
+    });
+  });
+
+  it('should replace protocol and url', async () => {
+    const url = 'http://domain_not_exists.anyproxy.io/should_be_replaced';  
+    await basicProxyRequest(proxyHost, 'GET', url).then((result) => {
+      const proxyRes = result.response;
+      expect(proxyRes.statusCode).toBe(302);
+    });
+  });
+});