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x/ramda/test/thunkify.js

:ram: Practical functional Javascript
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var R = require('../source');var eq = require('./shared/eq');
describe('thunkify', function() { it('returns a function with the same arity as the given function', function() { var input = function input(a0, a1) { }; var thunk = R.thunkify(input); eq(typeof thunk, 'function'); eq(thunk.length, input.length); });
it('returns a function that expects arguments and returns a new invoker function', function() { var input = function input(a0, a1) { }; var thunk = R.thunkify(input); eq(typeof thunk(42, 'xyz'), 'function'); });
it('calls the original function with the provided arguments when all were supplied', function() { var thunk = R.thunkify(R.add(2)); eq(thunk(40)(), 42); });});