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var assert = require('assert');
var R = require('../source');var eq = require('./shared/eq');

describe('otherwise', function() {  it('catches failed promises', function(done) {    R.otherwise(      function(n) {        eq(n, 1);        done();      },      Promise.reject(1)    );  });
  it('does nothing to successfully resolved promises', function(done) {    var asyncAddTwo = R.pipe(Promise.resolve.bind(Promise), R.andThen(R.inc), R.otherwise(R.multiply(0)), R.andThen(R.inc));
    R.andThen(function(result) {      eq(result, 3);      done();    })(asyncAddTwo(1));  });
  it('throws a typeError if the then method does not exist', function() {    assert.throws(      function() { R.otherwise(R.inc, 1); },      function(err) {        return err.constructor === TypeError &&               err.message === '`otherwise` expected a Promise, received 1';      }    );  });});