must/test/must/an_test.js

Testing and assertion library with friendly BDD syntax — awesome.must.be.true(). Many expressive matchers and is test runner and framework agnostic. Follows RFC 2119 with its use of MUST. Good and well tested stuff.

var O = require("oolong")
var Must = require("../..")
var assert = require("./assert")

describe("Must.prototype.an", function() {
  it("must be an alias of Must.prototype.a", function() {
    var a = O.lookupGetter(Must.prototype, "a")
    var an = O.lookupGetter(Must.prototype, "an")
    assert.strictEqual(an, a)
  })
})