refactor(NODE-3324): bump max wire version to 13 (#2875)

Author: nbbeeken

lib/core/wireprotocol/constants.js

@@ -1,9 +1,9 @@
 'use strict';
 
 const MIN_SUPPORTED_SERVER_VERSION = '2.6';
-const MAX_SUPPORTED_SERVER_VERSION = '4.4';
+const MAX_SUPPORTED_SERVER_VERSION = '5.0';
 const MIN_SUPPORTED_WIRE_VERSION = 2;
-const MAX_SUPPORTED_WIRE_VERSION = 9;
+const MAX_SUPPORTED_WIRE_VERSION = 13;
 
 module.exports = {
   MIN_SUPPORTED_SERVER_VERSION,

test/unit/wire_version.test.js

@@ -0,0 +1,77 @@
+'use strict';
+
+const mock = require('mongodb-mock-server');
+const expect = require('chai').expect;
+const MongoServerSelectionError = require('../../lib/core/error').MongoServerSelectionError;
+
+const minCompatErrMsg = `minimum wire version ${Number.MAX_SAFE_INTEGER -
+  1}, but this version of the Node.js Driver requires at most 13`;
+const maxCompatErrMsg = `reports maximum wire version 1, but this version of the Node.js Driver requires at least 2`;
+
+describe('Wire Protocol Version', () => {
+  let server;
+
+  function setWireProtocolMessageHandler(min, max) {
+    server.setMessageHandler(req => {
+      const doc = req.document;
+      if (doc.ismaster || doc.hello) {
+        const hello = Object.assign({}, mock.DEFAULT_ISMASTER_36, {
+          minWireVersion: min,
+          maxWireVersion: max
+        });
+        return req.reply(hello);
+      }
+    });
+  }
+
+  beforeEach(() => {
+    return mock.createServer().then(s => {
+      server = s;
+    });
+  });
+  afterEach(() => {
+    return mock.cleanup();
+  });
+
+  describe('minimum is greater than 13', () => {
+    it('should raise a compatibility error', function() {
+      setWireProtocolMessageHandler(Number.MAX_SAFE_INTEGER - 1, Number.MAX_SAFE_INTEGER);
+
+      const client = this.configuration.newClient(
+        `mongodb://${server.uri()}/wireVersionTest?serverSelectionTimeoutMS=200`
+      );
+      return client
+        .connect()
+        .then(() => {
+          expect.fail('should fail to select server!');
+        })
+        .catch(error => {
+          expect(error).to.be.instanceOf(MongoServerSelectionError);
+          expect(error)
+            .to.have.property('message')
+            .that.includes(minCompatErrMsg);
+        });
+    });
+  });
+
+  describe('maximum is less than 2', () => {
+    it('should raise a compatibility error', function() {
+      setWireProtocolMessageHandler(1, 1);
+
+      const client = this.configuration.newClient(
+        `mongodb://${server.uri()}/wireVersionTest?serverSelectionTimeoutMS=200`
+      );
+      return client
+        .connect()
+        .then(() => {
+          expect.fail('should fail to select server!');
+        })
+        .catch(error => {
+          expect(error).to.be.instanceOf(MongoServerSelectionError);
+          expect(error)
+            .to.have.property('message')
+            .that.includes(maxCompatErrMsg);
+        });
+    });
+  });
+});