refactor: rename clients and clientRooms methods

In Socket.IO glossary:

- a Client manages the low-level connection and can be associated with several Sockets
- a Socket belongs to a given Namespace

index.js

@@ -124,12 +124,12 @@ class Adapter extends EventEmitter {
   }
 
   /**
-   * Gets a list of clients by sid.
+   * Gets a list of sockets by sid.
    *
    * @param {Set<string>} rooms   the explicit set of rooms to check.
    * @public
    */
-  clients(rooms) {
+  sockets(rooms) {
     const sids = new Set();
 
     if (rooms.size) {
@@ -152,12 +152,12 @@ class Adapter extends EventEmitter {
   }
 
   /**
-   * Gets the list of rooms a given client has joined.
+   * Gets the list of rooms a given socket has joined.
    *
    * @param {String} id   the socket id
    * @public
    */
-  clientRooms(id) {
+  socketRooms(id) {
     return this.sids.get(id);
   }
 }

test/index.js

@@ -26,7 +26,7 @@ describe("socket.io-adapter", () => {
     expect(adapter.sids.has("s2")).to.be(false);
   });
 
-  it("should return a list of clients", () => {
+  it("should return a list of sockets", () => {
     const adapter = new Adapter({
       server: { encoder: null },
       connected: new Map([
@@ -39,11 +39,11 @@ describe("socket.io-adapter", () => {
     adapter.addAll("s2", new Set(["r2", "r3"]));
     adapter.addAll("s3", new Set(["r3"]));
 
-    const clients = adapter.clients(new Set());
-    expect(clients).to.be.a(Set);
-    expect(clients.size).to.be(3);
-    expect(adapter.clients(new Set(["r2"])).size).to.be(2);
-    expect(adapter.clients(new Set(["r4"])).size).to.be(0);
+    const sockets = adapter.sockets(new Set());
+    expect(sockets).to.be.a(Set);
+    expect(sockets.size).to.be(3);
+    expect(adapter.sockets(new Set(["r2"])).size).to.be(2);
+    expect(adapter.sockets(new Set(["r4"])).size).to.be(0);
   });
 
   it("should return a list of rooms", () => {
@@ -52,9 +52,9 @@ describe("socket.io-adapter", () => {
     adapter.addAll("s2", new Set(["r2", "r3"]));
     adapter.addAll("s3", new Set(["r3"]));
 
-    const rooms = adapter.clientRooms("s2");
+    const rooms = adapter.socketRooms("s2");
     expect(rooms).to.be.a(Set);
     expect(rooms.size).to.be(2);
-    expect(adapter.clientRooms("s4")).to.be(undefined);
+    expect(adapter.socketRooms("s4")).to.be(undefined);
   });
 });