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'use strict';
var test = require('tape');
var assert = require('assert');
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 += 1;
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 += 1;
t.same(res.a, 1);
obj.c.push(5);
t.same(res.c, [3, 4]);
t.end();
});
test('cloneTypedArray', { skip: typeof Uint8Array !== 'function' }, function (t) {
var obj = new Uint8Array([1]);
var res = traverse.clone(obj);
t.same(obj, res);
t.ok(obj !== res);
obj.set([2], 0);
res.set([3], 0);
t.same(obj, new Uint8Array([2]));
t.same(res, new Uint8Array([3]));
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) {
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();
});
test('removeNoStop', function (t) {
var obj = { a: 1, b: 2, c: { d: 3, e: 4 }, f: 5 };
var keys = [];
traverse(obj).forEach(function () {
keys.push(this.key);
if (this.key === 'c') { this.remove(); }
});
t.same(keys, [undefined, 'a', 'b', 'c', 'd', 'e', 'f']);
t.end();
});
test('removeStop', function (t) {
var obj = { a: 1, b: 2, c: { d: 3, e: 4 }, f: 5 };
var keys = [];
traverse(obj).forEach(function () {
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 () {
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 () {
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] }));
// eslint-disable-next-line no-sparse-arrays
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 }));
// eslint-disable-next-line comma-spacing, no-sparse-arrays
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] }));
// eslint-disable-next-line no-sparse-arrays
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();
});