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- var test = require('tape');
- var traverse = require('../');
- var deepEqual = require('./lib/deep_equal');
-
- test('mutate', function (t) {
- 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);
- }
- });
- t.same(obj, res);
- t.same(obj, { a : 1, b : 20, c : [ 3, 40 ] });
- t.end();
- });
-
- test('mutateT', function (t) {
- 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);
- }
- });
- t.same(obj, res);
- t.same(obj, { a : 1, b : 20, c : [ 3, 40 ] });
- t.end();
- });
-
- test('map', function (t) {
- 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);
- }
- });
- t.same(obj, { a : 1, b : 2, c : [ 3, 4 ] });
- t.same(res, { a : 1, b : 20, c : [ 3, 40 ] });
- t.end();
- });
-
- test('mapT', function (t) {
- 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);
- }
- });
- t.same(obj, { a : 1, b : 2, c : [ 3, 4 ] });
- t.same(res, { a : 1, b : 20, c : [ 3, 40 ] });
- t.end();
- });
-
- test('clone', function (t) {
- var obj = { a : 1, b : 2, c : [ 3, 4 ] };
- var res = traverse(obj).clone();
- t.same(obj, res);
- t.ok(obj !== res);
- obj.a ++;
- t.same(res.a, 1);
- obj.c.push(5);
- t.same(res.c, [ 3, 4 ]);
- t.end();
- });
-
- test('cloneT', function (t) {
- var obj = { a : 1, b : 2, c : [ 3, 4 ] };
- var res = traverse.clone(obj);
- t.same(obj, res);
- t.ok(obj !== res);
- obj.a ++;
- t.same(res.a, 1);
- obj.c.push(5);
- t.same(res.c, [ 3, 4 ]);
- t.end();
- });
-
- test('reduce', function (t) {
- 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;
- }, []);
- t.same(obj, { a : 1, b : 2, c : [ 3, 4 ] });
- t.same(res, [ 1, 2, 3, 4 ]);
- t.end();
- });
-
- test('reduceInit', function (t) {
- 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;
- });
- t.same(obj, { a : 1, b : 2, c : [ 3, 4 ] });
- t.same(res, obj);
- t.end();
- });
-
- test('remove', function (t) {
- var obj = { a : 1, b : 2, c : [ 3, 4 ] };
- traverse(obj).forEach(function (x) {
- if (this.isLeaf && x % 2 == 0) this.remove();
- });
-
- t.same(obj, { a : 1, c : [ 3 ] });
- t.end();
- });
-
- exports.removeNoStop = function() {
- var obj = { a : 1, b : 2, c : { d: 3, e: 4 }, f: 5 };
-
- var keys = [];
- traverse(obj).forEach(function (x) {
- keys.push(this.key)
- if (this.key == 'c') this.remove();
- });
-
- t.same(keys, [undefined, 'a', 'b', 'c', 'd', 'e', 'f'])
- t.end();
- }
-
- exports.removeStop = function() {
- var obj = { a : 1, b : 2, c : { d: 3, e: 4 }, f: 5 };
-
- var keys = [];
- traverse(obj).forEach(function (x) {
- keys.push(this.key)
- if (this.key == 'c') this.remove(true);
- });
-
- t.same(keys, [undefined, 'a', 'b', 'c', 'f'])
- t.end();
- }
-
- test('removeMap', function (t) {
- var obj = { a : 1, b : 2, c : [ 3, 4 ] };
- var res = traverse(obj).map(function (x) {
- if (this.isLeaf && x % 2 == 0) this.remove();
- });
-
- t.same(obj, { a : 1, b : 2, c : [ 3, 4 ] });
- t.same(res, { a : 1, c : [ 3 ] });
- t.end();
- });
-
- test('delete', function (t) {
- var obj = { a : 1, b : 2, c : [ 3, 4 ] };
- traverse(obj).forEach(function (x) {
- if (this.isLeaf && x % 2 == 0) this.delete();
- });
-
- t.ok(!deepEqual(
- obj, { a : 1, c : [ 3, undefined ] }
- ));
-
- t.ok(deepEqual(
- obj, { a : 1, c : [ 3 ] }
- ));
-
- t.ok(!deepEqual(
- obj, { a : 1, c : [ 3, null ] }
- ));
- t.end();
- });
-
- test('deleteNoStop', function (t) {
- var obj = { a : 1, b : 2, c : { d: 3, e: 4 } };
-
- var keys = [];
- traverse(obj).forEach(function (x) {
- keys.push(this.key)
- if (this.key == 'c') this.delete();
- });
-
- t.same(keys, [undefined, 'a', 'b', 'c', 'd', 'e'])
- t.end();
- });
-
- test('deleteStop', function (t) {
- var obj = { a : 1, b : 2, c : { d: 3, e: 4 } };
-
- var keys = [];
- traverse(obj).forEach(function (x) {
- keys.push(this.key)
- if (this.key == 'c') this.delete(true);
- });
-
- t.same(keys, [undefined, 'a', 'b', 'c'])
- t.end();
- });
-
- test('deleteRedux', function (t) {
- var obj = { a : 1, b : 2, c : [ 3, 4, 5 ] };
- traverse(obj).forEach(function (x) {
- if (this.isLeaf && x % 2 == 0) this.delete();
- });
-
- t.ok(!deepEqual(
- obj, { a : 1, c : [ 3, undefined, 5 ] }
- ));
-
- t.ok(deepEqual(
- obj, { a : 1, c : [ 3 ,, 5 ] }
- ));
-
- t.ok(!deepEqual(
- obj, { a : 1, c : [ 3, null, 5 ] }
- ));
-
- t.ok(!deepEqual(
- obj, { a : 1, c : [ 3, 5 ] }
- ));
-
- t.end();
- });
-
- test('deleteMap', function (t) {
- var obj = { a : 1, b : 2, c : [ 3, 4 ] };
- var res = traverse(obj).map(function (x) {
- if (this.isLeaf && x % 2 == 0) this.delete();
- });
-
- t.ok(deepEqual(
- obj,
- { a : 1, b : 2, c : [ 3, 4 ] }
- ));
-
- var xs = [ 3, 4 ];
- delete xs[1];
-
- t.ok(deepEqual(
- res, { a : 1, c : xs }
- ));
-
- t.ok(deepEqual(
- res, { a : 1, c : [ 3, ] }
- ));
-
- t.ok(deepEqual(
- res, { a : 1, c : [ 3 ] }
- ));
-
- t.end();
- });
-
- test('deleteMapRedux', function (t) {
- 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();
- });
-
- t.ok(deepEqual(
- obj,
- { a : 1, b : 2, c : [ 3, 4, 5 ] }
- ));
-
- var xs = [ 3, 4, 5 ];
- delete xs[1];
-
- t.ok(deepEqual(
- res, { a : 1, c : xs }
- ));
-
- t.ok(!deepEqual(
- res, { a : 1, c : [ 3, 5 ] }
- ));
-
- t.ok(deepEqual(
- res, { a : 1, c : [ 3 ,, 5 ] }
- ));
-
- t.end();
- });
-
- test('objectToString', function (t) {
- var obj = { a : 1, b : 2, c : [ 3, 4 ] };
- var res = traverse(obj).forEach(function (x) {
- if (typeof x === 'object' && !this.isRoot) {
- this.update(JSON.stringify(x));
- }
- });
- t.same(obj, res);
- t.same(obj, { a : 1, b : 2, c : "[3,4]" });
- t.end();
- });
-
- test('stringToObject', function (t) {
- var obj = { a : 1, b : 2, c : "[3,4]" };
- var res = traverse(obj).forEach(function (x) {
- if (typeof x === 'string') {
- this.update(JSON.parse(x));
- }
- else if (typeof x === 'number' && x % 2 === 0) {
- this.update(x * 10);
- }
- });
- t.deepEqual(obj, res);
- t.deepEqual(obj, { a : 1, b : 20, c : [ 3, 40 ] });
- t.end();
- });
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