| var assert = require('assert'); |
| var Traverse = require('traverse'); |
| |
| exports.mutate = function () { |
| var obj = { a : 1, b : 2, c : [ 3, 4 ] }; |
| var res = Traverse(obj).forEach(function (x) { |
| if (typeof x === 'number' && x % 2 === 0) { |
| this.update(x * 10); |
| } |
| }); |
| assert.deepEqual(obj, res); |
| assert.deepEqual(obj, { a : 1, b : 20, c : [ 3, 40 ] }); |
| }; |
| |
| exports.mutateT = function () { |
| var obj = { a : 1, b : 2, c : [ 3, 4 ] }; |
| var res = Traverse.forEach(obj, function (x) { |
| if (typeof x === 'number' && x % 2 === 0) { |
| this.update(x * 10); |
| } |
| }); |
| assert.deepEqual(obj, res); |
| assert.deepEqual(obj, { a : 1, b : 20, c : [ 3, 40 ] }); |
| }; |
| |
| exports.map = function () { |
| var obj = { a : 1, b : 2, c : [ 3, 4 ] }; |
| var res = Traverse(obj).map(function (x) { |
| if (typeof x === 'number' && x % 2 === 0) { |
| this.update(x * 10); |
| } |
| }); |
| assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] }); |
| assert.deepEqual(res, { a : 1, b : 20, c : [ 3, 40 ] }); |
| }; |
| |
| exports.mapT = function () { |
| var obj = { a : 1, b : 2, c : [ 3, 4 ] }; |
| var res = Traverse.map(obj, function (x) { |
| if (typeof x === 'number' && x % 2 === 0) { |
| this.update(x * 10); |
| } |
| }); |
| assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] }); |
| assert.deepEqual(res, { a : 1, b : 20, c : [ 3, 40 ] }); |
| }; |
| |
| exports.clone = function () { |
| var obj = { a : 1, b : 2, c : [ 3, 4 ] }; |
| var res = Traverse(obj).clone(); |
| assert.deepEqual(obj, res); |
| assert.ok(obj !== res); |
| obj.a ++; |
| assert.deepEqual(res.a, 1); |
| obj.c.push(5); |
| assert.deepEqual(res.c, [ 3, 4 ]); |
| }; |
| |
| exports.cloneT = function () { |
| var obj = { a : 1, b : 2, c : [ 3, 4 ] }; |
| var res = Traverse.clone(obj); |
| assert.deepEqual(obj, res); |
| assert.ok(obj !== res); |
| obj.a ++; |
| assert.deepEqual(res.a, 1); |
| obj.c.push(5); |
| assert.deepEqual(res.c, [ 3, 4 ]); |
| }; |
| |
| exports.reduce = function () { |
| var obj = { a : 1, b : 2, c : [ 3, 4 ] }; |
| var res = Traverse(obj).reduce(function (acc, x) { |
| if (this.isLeaf) acc.push(x); |
| return acc; |
| }, []); |
| assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] }); |
| assert.deepEqual(res, [ 1, 2, 3, 4 ]); |
| }; |
| |
| exports.reduceInit = function () { |
| var obj = { a : 1, b : 2, c : [ 3, 4 ] }; |
| var res = Traverse(obj).reduce(function (acc, x) { |
| if (this.isRoot) assert.fail('got root'); |
| return acc; |
| }); |
| assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] }); |
| assert.deepEqual(res, obj); |
| }; |
| |
| exports.remove = function () { |
| var obj = { a : 1, b : 2, c : [ 3, 4 ] }; |
| Traverse(obj).forEach(function (x) { |
| if (this.isLeaf && x % 2 == 0) this.remove(); |
| }); |
| |
| assert.deepEqual(obj, { a : 1, c : [ 3 ] }); |
| }; |
| |
| exports.removeMap = function () { |
| var obj = { a : 1, b : 2, c : [ 3, 4 ] }; |
| var res = Traverse(obj).map(function (x) { |
| if (this.isLeaf && x % 2 == 0) this.remove(); |
| }); |
| |
| assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] }); |
| assert.deepEqual(res, { a : 1, c : [ 3 ] }); |
| }; |
| |
| exports.delete = function () { |
| var obj = { a : 1, b : 2, c : [ 3, 4 ] }; |
| Traverse(obj).forEach(function (x) { |
| if (this.isLeaf && x % 2 == 0) this.delete(); |
| }); |
| |
| assert.ok(!Traverse.deepEqual( |
| obj, { a : 1, c : [ 3, undefined ] } |
| )); |
| |
| assert.ok(Traverse.deepEqual( |
| obj, { a : 1, c : [ 3 ] } |
| )); |
| |
| assert.ok(!Traverse.deepEqual( |
| obj, { a : 1, c : [ 3, null ] } |
| )); |
| }; |
| |
| exports.deleteRedux = function () { |
| var obj = { a : 1, b : 2, c : [ 3, 4, 5 ] }; |
| Traverse(obj).forEach(function (x) { |
| if (this.isLeaf && x % 2 == 0) this.delete(); |
| }); |
| |
| assert.ok(!Traverse.deepEqual( |
| obj, { a : 1, c : [ 3, undefined, 5 ] } |
| )); |
| |
| assert.ok(Traverse.deepEqual( |
| obj, { a : 1, c : [ 3 ,, 5 ] } |
| )); |
| |
| assert.ok(!Traverse.deepEqual( |
| obj, { a : 1, c : [ 3, null, 5 ] } |
| )); |
| |
| assert.ok(!Traverse.deepEqual( |
| obj, { a : 1, c : [ 3, 5 ] } |
| )); |
| }; |
| |
| exports.deleteMap = function () { |
| var obj = { a : 1, b : 2, c : [ 3, 4 ] }; |
| var res = Traverse(obj).map(function (x) { |
| if (this.isLeaf && x % 2 == 0) this.delete(); |
| }); |
| |
| assert.ok(Traverse.deepEqual( |
| obj, |
| { a : 1, b : 2, c : [ 3, 4 ] } |
| )); |
| |
| var xs = [ 3, 4 ]; |
| delete xs[1]; |
| |
| assert.ok(Traverse.deepEqual( |
| res, { a : 1, c : xs } |
| )); |
| |
| assert.ok(Traverse.deepEqual( |
| res, { a : 1, c : [ 3, ] } |
| )); |
| |
| assert.ok(Traverse.deepEqual( |
| res, { a : 1, c : [ 3 ] } |
| )); |
| }; |
| |
| exports.deleteMapRedux = function () { |
| var obj = { a : 1, b : 2, c : [ 3, 4, 5 ] }; |
| var res = Traverse(obj).map(function (x) { |
| if (this.isLeaf && x % 2 == 0) this.delete(); |
| }); |
| |
| assert.ok(Traverse.deepEqual( |
| obj, |
| { a : 1, b : 2, c : [ 3, 4, 5 ] } |
| )); |
| |
| var xs = [ 3, 4, 5 ]; |
| delete xs[1]; |
| |
| assert.ok(Traverse.deepEqual( |
| res, { a : 1, c : xs } |
| )); |
| |
| assert.ok(!Traverse.deepEqual( |
| res, { a : 1, c : [ 3, 5 ] } |
| )); |
| |
| assert.ok(Traverse.deepEqual( |
| res, { a : 1, c : [ 3 ,, 5 ] } |
| )); |
| }; |