| var assert = require('assert'); |
| var Traverse = require('traverse'); |
| var util = require('util'); |
| |
| exports.circular = function () { |
| var obj = { x : 3 }; |
| obj.y = obj; |
| var foundY = false; |
| Traverse(obj).forEach(function (x) { |
| if (this.path.join('') == 'y') { |
| assert.equal( |
| util.inspect(this.circular.node), |
| util.inspect(obj) |
| ); |
| foundY = true; |
| } |
| }); |
| assert.ok(foundY); |
| }; |
| |
| exports.deepCirc = function () { |
| var obj = { x : [ 1, 2, 3 ], y : [ 4, 5 ] }; |
| obj.y[2] = obj; |
| |
| var times = 0; |
| Traverse(obj).forEach(function (x) { |
| if (this.circular) { |
| assert.deepEqual(this.circular.path, []); |
| assert.deepEqual(this.path, [ 'y', 2 ]); |
| times ++; |
| } |
| }); |
| |
| assert.deepEqual(times, 1); |
| }; |
| |
| exports.doubleCirc = function () { |
| var obj = { x : [ 1, 2, 3 ], y : [ 4, 5 ] }; |
| obj.y[2] = obj; |
| obj.x.push(obj.y); |
| |
| var circs = []; |
| Traverse(obj).forEach(function (x) { |
| if (this.circular) { |
| circs.push({ circ : this.circular, self : this, node : x }); |
| } |
| }); |
| |
| assert.deepEqual(circs[0].self.path, [ 'x', 3, 2 ]); |
| assert.deepEqual(circs[0].circ.path, []); |
| |
| assert.deepEqual(circs[1].self.path, [ 'y', 2 ]); |
| assert.deepEqual(circs[1].circ.path, []); |
| |
| assert.deepEqual(circs.length, 2); |
| }; |
| |
| exports.circDubForEach = function () { |
| var obj = { x : [ 1, 2, 3 ], y : [ 4, 5 ] }; |
| obj.y[2] = obj; |
| obj.x.push(obj.y); |
| |
| Traverse(obj).forEach(function (x) { |
| if (this.circular) this.update('...'); |
| }); |
| |
| assert.deepEqual(obj, { x : [ 1, 2, 3, [ 4, 5, '...' ] ], y : [ 4, 5, '...' ] }); |
| }; |
| |
| exports.circDubMap = function () { |
| var obj = { x : [ 1, 2, 3 ], y : [ 4, 5 ] }; |
| obj.y[2] = obj; |
| obj.x.push(obj.y); |
| |
| var c = Traverse(obj).map(function (x) { |
| if (this.circular) { |
| this.update('...'); |
| } |
| }); |
| |
| assert.deepEqual(c, { x : [ 1, 2, 3, [ 4, 5, '...' ] ], y : [ 4, 5, '...' ] }); |
| }; |
| |
| exports.circClone = function () { |
| var obj = { x : [ 1, 2, 3 ], y : [ 4, 5 ] }; |
| obj.y[2] = obj; |
| obj.x.push(obj.y); |
| |
| var clone = Traverse.clone(obj); |
| assert.ok(obj !== clone); |
| |
| assert.ok(clone.y[2] === clone); |
| assert.ok(clone.y[2] !== obj); |
| assert.ok(clone.x[3][2] === clone); |
| assert.ok(clone.x[3][2] !== obj); |
| assert.deepEqual(clone.x.slice(0,3), [1,2,3]); |
| assert.deepEqual(clone.y.slice(0,2), [4,5]); |
| }; |
| |
| exports.circMapScrub = function () { |
| var obj = { a : 1, b : 2 }; |
| obj.c = obj; |
| |
| var scrubbed = Traverse(obj).map(function (node) { |
| if (this.circular) this.remove(); |
| }); |
| assert.deepEqual( |
| Object.keys(scrubbed).sort(), |
| [ 'a', 'b' ] |
| ); |
| assert.ok(Traverse.deepEqual(scrubbed, { a : 1, b : 2 })); |
| |
| assert.equal(obj.c, obj); |
| }; |