test: token in init event payload is undefined not null

Doesn't matter which, code happens to emit undefined.
Adapt test expectation over writing strange || null code.
The conditional just checks for a falsey value.

test/server.ts

@@ -151,7 +151,7 @@ describe("Server", function () {
 				expect(data.active).to.equal(-1);
 				expect(data.networks).to.be.an("array");
 				expect(data.networks).to.be.empty;
-				expect(data.token).to.be.null;
+				expect(data.token).to.be.undefined;
 
 				done();
 			});