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node_modules/defaults/test.js 1.03 KB
ce4c83ff   wxy   初始提交
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  var defaults = require('./'),
      test = require('tap').test;
  
  test("ensure options is an object", function(t) {
    var options = defaults(false, { a : true });
    t.ok(options.a);
    t.end()
  });
  
  test("ensure defaults override keys", function(t) {
    var result = defaults({}, { a: false, b: true });
    t.ok(result.b, 'b merges over undefined');
    t.equal(result.a, false, 'a merges over undefined');
    t.end();
  });
  
  test("ensure defined keys are not overwritten", function(t) {
    var result = defaults({ b: false }, { a: false, b: true });
    t.equal(result.b, false, 'b not merged');
    t.equal(result.a, false, 'a merges over undefined');
    t.end();
  });
  
  test("ensure defaults clone nested objects", function(t) {
    var d = { a: [1,2,3], b: { hello : 'world' } };
    var result = defaults({}, d);
    t.equal(result.a.length, 3, 'objects should be clones');
    t.ok(result.a !== d.a, 'objects should be clones');
  
    t.equal(Object.keys(result.b).length, 1, 'objects should be clones');
    t.ok(result.b !== d.b, 'objects should be clones');
    t.end();
  });