feat(NODE-3793): Remove offensive language from code and tests

src/cmap/commands.ts

@@ -12,7 +12,7 @@ let _requestId = 0;
 
 // Query flags
 const OPTS_TAILABLE_CURSOR = 2;
-const OPTS_SLAVE = 4;
+const OPTS_SECONDARY = 4;
 const OPTS_OPLOG_REPLAY = 8;
 const OPTS_NO_CURSOR_TIMEOUT = 16;
 const OPTS_AWAIT_DATA = 32;
@@ -41,7 +41,7 @@ export interface OpQueryOptions extends CommandOptions {
   ignoreUndefined?: boolean;
   maxBsonSize?: number;
   checkKeys?: boolean;
-  slaveOk?: boolean;
+  secondaryOk?: boolean;
 
   requestId?: number;
   moreToCome?: boolean;
@@ -67,7 +67,7 @@ export class Query {
   checkKeys: boolean;
   batchSize: number;
   tailable: boolean;
-  slaveOk: boolean;
+  secondaryOk: boolean;
   oplogReplay: boolean;
   noCursorTimeout: boolean;
   awaitData: boolean;
@@ -112,7 +112,7 @@ export class Query {
 
     // Flags
     this.tailable = false;
-    this.slaveOk = typeof options.slaveOk === 'boolean' ? options.slaveOk : false;
+    this.secondaryOk = typeof options.secondaryOk === 'boolean' ? options.secondaryOk : false;
     this.oplogReplay = false;
     this.noCursorTimeout = false;
     this.awaitData = false;
@@ -146,8 +146,8 @@ export class Query {
       flags |= OPTS_TAILABLE_CURSOR;
     }
 
-    if (this.slaveOk) {
-      flags |= OPTS_SLAVE;
+    if (this.secondaryOk) {
+      flags |= OPTS_SECONDARY;
     }
 
     if (this.oplogReplay) {

src/cmap/connection.ts

@@ -96,7 +96,7 @@ export interface QueryOptions extends BSONSerializeOptions {
 /** @internal */
 export interface CommandOptions extends BSONSerializeOptions {
   command?: boolean;
-  slaveOk?: boolean;
+  secondaryOk?: boolean;
   /** Specify read preference if command supports it */
   readPreference?: ReadPreferenceLike;
   raw?: boolean;
@@ -427,7 +427,7 @@ export class Connection extends TypedEventEmitter<ConnectionEvents> {
         numberToReturn: -1,
         checkKeys: false,
         // This value is not overridable
-        slaveOk: readPreference.slaveOk()
+        secondaryOk: readPreference.secondaryOk()
       },
       options
     );
@@ -472,7 +472,7 @@ export class Connection extends TypedEventEmitter<ConnectionEvents> {
       numberToReturn,
       pre32Limit: typeof limit === 'number' ? limit : undefined,
       checkKeys: false,
-      slaveOk: readPreference.slaveOk()
+      secondaryOk: readPreference.secondaryOk()
     };
 
     if (options.projection) {

src/collection.ts

@@ -112,6 +112,9 @@ export interface CollectionOptions
   extends BSONSerializeOptions,
     WriteConcernOptions,
     LoggerOptions {
+  /**
+   * @deprecated Use readPreference instead
+   */
   slaveOk?: boolean;
   /** Specify a read concern for the collection. (only MongoDB 3.2 or higher supported) */
   readConcern?: ReadConcernLike;
@@ -127,7 +130,6 @@ export interface CollectionPrivate {
   namespace: MongoDBNamespace;
   readPreference?: ReadPreference;
   bsonOptions: BSONSerializeOptions;
-  slaveOk?: boolean;
   collectionHint?: Hint;
   readConcern?: ReadConcern;
   writeConcern?: WriteConcern;
@@ -181,8 +183,7 @@ export class Collection<TSchema extends Document = Document> {
       readPreference: ReadPreference.fromOptions(options),
       bsonOptions: resolveBSONOptions(options, db),
       readConcern: ReadConcern.fromOptions(options),
-      writeConcern: WriteConcern.fromOptions(options),
-      slaveOk: options == null || options.slaveOk == null ? db.slaveOk : options.slaveOk
+      writeConcern: WriteConcern.fromOptions(options)
     };
   }
 

src/db.ts

@@ -185,8 +185,18 @@ export class Db {
     return this.s.options;
   }
 
-  // slaveOk specified
+  /**
+   * slaveOk specified
+   * @deprecated Use secondaryOk instead
+   */
   get slaveOk(): boolean {
+    return this.secondaryOk;
+  }
+
+  /**
+   * Check if a secondary can be used (because the read preference is *not* set to primary)
+   */
+  get secondaryOk(): boolean {
     return this.s.readPreference?.preference !== 'primary' || false;
   }
 

src/read_preference.ts

@@ -232,19 +232,27 @@ export class ReadPreference {
   }
 
   /**
-   * Indicates that this readPreference needs the "slaveOk" bit when sent over the wire
-   *
+   * Indicates that this readPreference needs the "secondaryOk" bit when sent over the wire
+   * @deprecated Use secondaryOk instead
    * @see https://docs.mongodb.com/manual/reference/mongodb-wire-protocol/#op-query
    */
   slaveOk(): boolean {
-    const NEEDS_SLAVEOK = new Set<string>([
+    return this.secondaryOk();
+  }
+
+  /**
+   * Indicates that this readPreference needs the "SecondaryOk" bit when sent over the wire
+   * @see https://docs.mongodb.com/manual/reference/mongodb-wire-protocol/#op-query
+   */
+  secondaryOk(): boolean {
+    const NEEDS_SECONDARYOK = new Set<string>([
       ReadPreference.PRIMARY_PREFERRED,
       ReadPreference.SECONDARY,
       ReadPreference.SECONDARY_PREFERRED,
       ReadPreference.NEAREST
     ]);
 
-    return NEEDS_SLAVEOK.has(this.mode);
+    return NEEDS_SECONDARYOK.has(this.mode);
   }
 
   /**

test/functional/cursor.test.js

@@ -11,7 +11,6 @@ const { Writable } = require('stream');
 const { ReadPreference } = require('../../src/read_preference');
 const { ServerType } = require('../../src/sdam/common');
 const { formatSort } = require('../../src/sort');
-const { FindCursor } = require('../../src/cursor/find_cursor');
 
 describe('Cursor', function () {
   before(function () {
@@ -3732,38 +3731,6 @@ describe('Cursor', function () {
     }
   });
 
-  // NOTE: This is skipped because I don't think its correct or adds value. The expected error
-  //       is not an error with hasNext (from server), but rather a local TypeError which should
-  //       be caught anyway. The only solution here would be to wrap the entire top level call
-  //       in a try/catch which is not going to happen.
-  it.skip('Should propagate hasNext errors when using a callback', {
-    metadata: {
-      requires: { topology: ['single', 'replicaset', 'sharded', 'ssl', 'heap', 'wiredtiger'] }
-    },
-    test: function (done) {
-      const configuration = this.configuration;
-      var client = configuration.newClient({ w: 1 }, { maxPoolSize: 1 });
-      client.connect((err, client) => {
-        expect(err).to.not.exist;
-        this.defer(() => client.close());
-
-        const db = client.db(configuration.db);
-        const cursor = new FindCursor(
-          db.s.topology,
-          db.s.namespace,
-          {},
-          { limit: 0, skip: 0, slaveOk: false, readPreference: 42 }
-        );
-
-        cursor.hasNext(err => {
-          test.ok(err !== null);
-          test.equal(err.message, 'readPreference must be a ReadPreference instance');
-          done();
-        });
-      });
-    }
-  });
-
   it(
     'should return implicit session to pool when client-side cursor exhausts results on initial query',
     {

test/unit/db.test.ts

@@ -0,0 +1,50 @@
+import { expect } from 'chai';
+
+import { MongoClient } from '../../src';
+import { Db, DbOptions } from '../../src/db';
+import { ReadPreference } from '../../src/read_preference';
+
+describe('Db - test secondaryOk matches readPreference', function () {
+  const client = new MongoClient('mongodb://localhost:27017');
+  const legacy_secondary_ok = 'slaveOk';
+
+  it.only('secondaryOk should be false when readPreference is Primary', function () {
+    const options: DbOptions = { readPreference: ReadPreference.PRIMARY };
+    const mydb = new Db(client, 'mydb', options);
+
+    expect(mydb.secondaryOk).to.be.false;
+    expect(mydb[legacy_secondary_ok]).to.be.false;
+  });
+
+  it.only('secondaryOk should be true when readPreference is Primary Preferred', function () {
+    const options: DbOptions = { readPreference: ReadPreference.PRIMARY_PREFERRED };
+    const mydb = new Db(client, 'mydb', options);
+
+    expect(mydb.secondaryOk).to.be.true;
+    expect(mydb[legacy_secondary_ok]).to.be.true;
+  });
+
+  it.only('secondaryOk should be true when readPreference is Secondary', function () {
+    const options: DbOptions = { readPreference: ReadPreference.SECONDARY };
+    const mydb = new Db(client, 'mydb', options);
+
+    expect(mydb.secondaryOk).to.be.true;
+    expect(mydb[legacy_secondary_ok]).to.be.true;
+  });
+
+  it.only('secondaryOk should be true when readPreference is Secondary Preferred', function () {
+    const options: DbOptions = { readPreference: ReadPreference.SECONDARY_PREFERRED };
+    const mydb = new Db(client, 'mydb', options);
+
+    expect(mydb.secondaryOk).to.be.true;
+    expect(mydb[legacy_secondary_ok]).to.be.true;
+  });
+
+  it.only('secondaryOk should be true when readPreference is Nearest', function () {
+    const options: DbOptions = { readPreference: ReadPreference.NEAREST };
+    const mydb = new Db(client, 'mydb', options);
+
+    expect(mydb.secondaryOk).to.be.true;
+    expect(mydb[legacy_secondary_ok]).to.be.true;
+  });
+});