describe(“j$.util”, function() {

describe("isArray_", function() {
  it("should return true if the argument is an array", function() {
    expect(j$.isArray_([])).toBe(true);
    expect(j$.isArray_(['a'])).toBe(true);
  });

  it("should return false if the argument is not an array", function() {
    expect(j$.isArray_(undefined)).toBe(false);
    expect(j$.isArray_({})).toBe(false);
    expect(j$.isArray_(function() {})).toBe(false);
    expect(j$.isArray_('foo')).toBe(false);
    expect(j$.isArray_(5)).toBe(false);
    expect(j$.isArray_(null)).toBe(false);
  });
});

describe("isUndefined", function() {
  it("reports if a variable is defined", function() {
    var a;
    expect(j$.util.isUndefined(a)).toBe(true);
    expect(j$.util.isUndefined(undefined)).toBe(true);

    var undefined = "diz be undefined yo";
    expect(j$.util.isUndefined(undefined)).toBe(false);
  });
});

});