jasmineでsinon.fakeServerを使うときに気をつけること ref: http://qiita.com/halhide/items/c27f1831b860145ca2a1

file0.js

var server = sinon.fakeServer.create();
server.autoRespond = true;
server.respondWith( function( xhr, id ) {
  xhr.respond( 200, null, "..." );
} );

spyOn( someObject, "somemethod" );
hogeClient.request( ... );
expect( someObject.somemethod ).toHaveBeenCalled();

file1.js

runs( function() {
  var server = sinon.fakeServer.create();
  server.autoRespond = true;
  server.respondWith( function( xhr, id ) {
    xhr.respond( 200, { "content-type": "application/json" }, JSON.stringify( { entries: { ... } ) );
  } );
  spyOn( someObject, "somemethod" );
  hogeClient.request( ... );
} );
waitsFor( function() {
  return someObject.somemethod.wasCalled;
}, "timeout", 3000 );
runs( function() {
  expect( someObject.somemethod ).toHaveBeenCalled();
} );