gistfile1.js

var fileId = JSON.parse(mock.POST("/File/", {
    headers: {
	"content-type": "text/plain",
        "content-disposition": "attachment",
	accept: "application/json"
    },
    body: {forEach: function(write) {
        write("foo\r\nbar\r\nbaz");
    }}
 }).body).id;
 assert.equal(mock.GET("/File/" + fileId).body, "foo\r\nbar\r\nbaz");