must
Version:
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.
53 lines (41 loc) • 1.42 kB
JavaScript
var Must = require("../..")
var assert = require("./assert")
describe("Must.prototype.number", function() {
// Allow using new Number:
/* jshint -W053 */
/* eslint no-new-wrappers: 0 */
it("must fail given null", function() {
assert.fail(function() { Must(null).be.number() })
})
it("must fail given undefined", function() {
assert.fail(function() { Must(undefined).be.number() })
})
it("must fail given boolean primitive", function() {
assert.fail(function() { Must(true).be.date() })
assert.fail(function() { Must(false).be.date() })
})
it("must pass given number primitive", function() {
assert.pass(function() { Must(42).be.number() })
})
it("must fail given number object", function() {
assert.fail(function() { Must(new Number(42)).be.number() })
})
it("must fail given string primitive", function() {
assert.fail(function() { Must("").be.number() })
})
it("must fail given array", function() {
assert.fail(function() { Must([]).be.number() })
})
it("must fail given object", function() {
assert.fail(function() { Must({}).be.number() })
})
require("./_assertion_error_test")(function() { Must("").be.number() }, {
actual: "",
message: "\"\" must be a number"
})
describe(".not", function() {
it("must invert the assertion", function() {
assert.fail(function() { Must(42).not.be.number() })
})
})
})