chore(ci): add plain ldap auth test

NODE-875

Author: emadum

.evergreen/config.yml

@@ -171,6 +171,14 @@ functions:
           rm -f ./prepare_atlas_connectivity.sh
 
           NODE_LTS_NAME='${NODE_LTS_NAME}' bash ${PROJECT_DIRECTORY}/.evergreen/run-atlas-tests.sh
+  run ldap tests:
+    - command: shell.exec
+      type: test
+      params:
+        working_dir: src
+        script: |
+          MONGODB_URI='${plain_auth_mongodb_uri}' NODE_LTS_NAME='${NODE_LTS_NAME}' \
+          bash ${PROJECT_DIRECTORY}/.evergreen/run-ldap-tests.sh
 pre:
   - func: fetch source
   - func: prepare resources
@@ -761,6 +769,13 @@ tasks:
     commands:
       - func: install dependencies
       - func: run atlas tests
+  - name: test-auth-ldap
+    tags:
+      - auth
+      - ldap
+    commands:
+      - func: install dependencies
+      - func: run ldap tests
   - name: run-checks
     tags:
       - run-checks
@@ -825,6 +840,7 @@ buildvariants:
       - test-2.6-replica_set-unified
       - test-2.6-sharded_cluster-unified
       - test-atlas-connectivity
+      - test-auth-ldap
   - name: macos-1014-dubnium
     display_name: macOS 10.14 Node Dubnium
     run_on: macos-1014
@@ -922,6 +938,7 @@ buildvariants:
       - test-2.6-replica_set-unified
       - test-2.6-sharded_cluster-unified
       - test-atlas-connectivity
+      - test-auth-ldap
   - name: ubuntu-14.04-dubnium
     display_name: Ubuntu 14.04 Node Dubnium
     run_on: ubuntu1404-test
@@ -990,6 +1007,7 @@ buildvariants:
       - test-3.2-replica_set-unified
       - test-3.2-sharded_cluster-unified
       - test-atlas-connectivity
+      - test-auth-ldap
   - name: ubuntu-18.04-dubnium
     display_name: Ubuntu 18.04 Node Dubnium
     run_on: ubuntu1804-test

.evergreen/config.yml.in

@@ -207,6 +207,14 @@ functions:
 
           NODE_LTS_NAME='${NODE_LTS_NAME}' bash ${PROJECT_DIRECTORY}/.evergreen/run-atlas-tests.sh
 
+  "run ldap tests":
+    - command: shell.exec
+      type: test
+      params:
+        working_dir: "src"
+        script: |
+          MONGODB_URI='${plain_auth_mongodb_uri}' NODE_LTS_NAME='${NODE_LTS_NAME}' \
+          bash ${PROJECT_DIRECTORY}/.evergreen/run-ldap-tests.sh
 pre:
   - func: "fetch source"
   - func: "prepare resources"

.evergreen/generate_evergreen_tasks.js

@@ -101,11 +101,18 @@ MONGODB_VERSIONS.forEach(mongoVersion => {
 });
 
 // singleton task for connectivity tests
-TASKS.push({
-  name: 'test-atlas-connectivity',
-  tags: ['atlas-connect'],
-  commands: [{ func: 'install dependencies' }, { func: 'run atlas tests' }]
-});
+TASKS.push(
+  {
+    name: 'test-atlas-connectivity',
+    tags: ['atlas-connect'],
+    commands: [{ func: 'install dependencies' }, { func: 'run atlas tests' }]
+  },
+  {
+    name: 'test-auth-ldap',
+    tags: ['auth', 'ldap'],
+    commands: [{ func: 'install dependencies' }, { func: 'run ldap tests' }]
+  }
+);
 
 const BUILD_VARIANTS = [];
 

.evergreen/run-ldap-tests.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -o errexit  # Exit the script with error if any of the commands fail
+
+export PROJECT_DIRECTORY="$(pwd)"
+NODE_ARTIFACTS_PATH="${PROJECT_DIRECTORY}/node-artifacts"
+export NVM_DIR="${NODE_ARTIFACTS_PATH}/nvm"
+[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
+
+npm run check:ldap

package.json

@@ -65,6 +65,7 @@
   },
   "scripts": {
     "atlas": "mocha --opts '{}' ./test/manual/atlas_connectivity.test.js",
+    "check:ldap": "mocha --config \"test/manual/mocharc.json\" test/manual/ldap.test.js",
     "test": "npm run lint && mocha --recursive test/functional test/unit test/core",
     "test-nolint": "mocha --recursive test/functional test/unit test/core",
     "coverage": "istanbul cover mongodb-test-runner -- -t 60000 test/core test/unit test/functional",

test/functional/ldap.test.js

@@ -0,0 +1,26 @@
+'use strict';
+const MongoClient = require('../..').MongoClient;
+var test = require('../functional/shared').assert;
+
+describe('LDAP', function() {
+  if (process.env.MONGODB_URI == null) {
+    throw new Error(`skipping SSL tests, MONGODB_URI environment variable is not defined`);
+  }
+
+  it('Should correctly authenticate against ldap', function(done) {
+    const client = new MongoClient(process.env.MONGODB_URI);
+    client.connect(function(err, client) {
+      test.equal(null, err);
+
+      client
+        .db('ldap')
+        .collection('test')
+        .findOne(function(err, doc) {
+          test.equal(null, err);
+          test.equal(true, doc.ldap);
+
+          client.close(done);
+        });
+    });
+  });
+});

test/manual/ldap.test.js

@@ -131,6 +131,7 @@
     },
     {
       "description": "A successful update one command with write errors",
+      "ignore_if_server_version_greater_than": "4.5",
       "operation": {
         "name": "updateOne",
         "arguments": {