Jasmine Spec as Typescript File

I'm attempting to set up unit testing in my project, using Jasmine. I am writing my specs in Typescript. My first test is simply checking that a config file returns a value as expected. However, when I import the config, Jasmine can't find the spec. If I take out the import and fill in dummy values, everything works fine.

My spec file is:

/// <reference path="../typings/index.d.ts"/>
process.env.ENV = "test";
process.env.TEST_DB_NAME= "test";

import environment = require("../config/config");

describe("Config Tests:", () => {
    it("db returns string", () => {
        expect(environment.db).toEqual(process.env.TEST_DB_NAME);
    });
});

environment.db should simply return my process.env.TEST_DB_NAME.

I feel this has to do something with the import at the beginning making Jasmine not find the describe(). Anyone know of a way to get Jasmine to work with imports or am I just going about testing this the wrong way?