Alsatian-fluent-assertions NPM

Alsatian fluent assertions plugin

This is a fluent assertions plugin for the Alsatian xUnit framework, for JavaScript and TypeScript. It provides a way to chain assertions while narrowing the scope, enabling the clear and concise expression of code specifications for those who prefer a fluent style. By contrast, the default expectations framework in Alsatian is not currently fluent.

Assert(obj)
  .is(UserModel)
  .has(o => o.name)
  .that.hasMatch(/\d+/) // alt 'matches' that returns match result scope
  .that.converted(parts => +parts[0])
  .equals(7);

Assert(obj).equals(expected);

Assert(obj)
  .hasAsserts({ // same as .has/.hasProperties with MatchMode.Asserts
    name: "agent 007",
    address: a => a.is(Redacted),
    phone: /\+44\d{10}/,
    deploy: a => a.is(Function).not.throws()
  });