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330 lines
10 KiB
330 lines
10 KiB
var model = require('../lib/model')
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, should = require('chai').should()
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, assert = require('chai').assert
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, _ = require('underscore')
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, async = require('async')
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;
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describe('Model', function () {
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describe('Serialization, deserialization', function () {
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it('Can serialize and deserialize strings', function (done) {
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var a, b, c;
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a = { test: "Some string" };
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b = model.serialize(a);
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c = model.deserialize(b);
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b.indexOf('\n').should.equal(-1);
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c.test.should.equal("Some string");
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// Even if a property is a string containing a new line, the serialized
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// version doesn't. The new line must still be there upon deserialization
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a = { test: "With a new\nline" };
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b = model.serialize(a);
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c = model.deserialize(b);
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c.test.should.equal("With a new\nline");
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a.test.indexOf('\n').should.not.equal(-1);
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b.indexOf('\n').should.equal(-1);
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c.test.indexOf('\n').should.not.equal(-1);
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done();
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});
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it('Can serialize and deserialize booleans', function (done) {
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var a, b, c;
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a = { test: true };
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b = model.serialize(a);
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c = model.deserialize(b);
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b.indexOf('\n').should.equal(-1);
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c.test.should.equal(true);
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done();
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});
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it('Can serialize and deserialize numbers', function (done) {
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var a, b, c;
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a = { test: 5 };
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b = model.serialize(a);
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c = model.deserialize(b);
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b.indexOf('\n').should.equal(-1);
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c.test.should.equal(5);
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done();
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});
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it('Can serialize and deserialize null', function (done) {
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var a, b, c;
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a = { test: null };
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b = model.serialize(a);
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c = model.deserialize(b);
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b.indexOf('\n').should.equal(-1);
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assert.isNull(a.test);
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done();
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});
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it('Can serialize and deserialize a date', function (done) {
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var a, b, c
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, d = new Date();
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a = { test: d };
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b = model.serialize(a);
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c = model.deserialize(b);
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b.indexOf('\n').should.equal(-1);
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c.test.constructor.name.should.equal('Date');
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c.test.getTime().should.equal(d.getTime());
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done();
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});
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it('Can serialize and deserialize sub objects', function (done) {
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var a, b, c
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, d = new Date();
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a = { test: { something: 39, also: d, yes: { again: 'yes' } } };
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b = model.serialize(a);
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c = model.deserialize(b);
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b.indexOf('\n').should.equal(-1);
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c.test.something.should.equal(39);
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c.test.also.getTime().should.equal(d.getTime());
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c.test.yes.again.should.equal('yes');
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done();
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});
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it('Can serialize and deserialize sub arrays', function (done) {
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var a, b, c
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, d = new Date();
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a = { test: [ 39, d, { again: 'yes' } ] };
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b = model.serialize(a);
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c = model.deserialize(b);
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b.indexOf('\n').should.equal(-1);
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c.test[0].should.equal(39);
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c.test[1].getTime().should.equal(d.getTime());
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c.test[2].again.should.equal('yes');
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done();
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});
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it('Reject field names beginning with a $ sign', function (done) {
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var a = { $something: 'totest' }
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, b;
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try {
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b = model.serialize(a);
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return done('An error should have been thrown');
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} catch (e) {
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return done();
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}
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});
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}); // ==== End of 'Serialization, deserialization' ==== //
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describe('Object checking', function () {
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it('Field names beginning with a $ sign are forbidden', function () {
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assert.isDefined(model.checkObject);
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(function () {
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model.checkObject({ $bad: true });
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}).should.throw();
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(function () {
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model.checkObject({ some: 42, nested: { again: "no", $worse: true } });
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}).should.throw();
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// This shouldn't throw since "$actuallyok" is not a field name
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model.checkObject({ some: 42, nested: [ 5, "no", "$actuallyok", true ] });
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(function () {
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model.checkObject({ some: 42, nested: [ 5, "no", "$actuallyok", true, { $hidden: "useless" } ] });
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}).should.throw();
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});
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it('Field names cannot contain a .', function () {
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assert.isDefined(model.checkObject);
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(function () {
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model.checkObject({ "so.bad": true });
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}).should.throw();
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// Recursive behaviour testing done in the above test on $ signs
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});
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}); // ==== End of 'Object checking' ==== //
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describe('Deep copying', function () {
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it('Should be able to deep copy any serializable model', function () {
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var d = new Date()
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, obj = { a: ['ee', 'ff', 42], date: d, subobj: { a: 'b', b: 'c' } }
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, res = model.deepCopy(obj);
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;
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res.a.length.should.equal(3);
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res.a[0].should.equal('ee');
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res.a[1].should.equal('ff');
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res.a[2].should.equal(42);
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res.date.getTime().should.equal(d.getTime());
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res.subobj.a.should.equal('b');
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res.subobj.b.should.equal('c');
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obj.a.push('ggg');
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obj.date = 'notadate';
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obj.subobj = [];
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// Even if the original object is modified, the copied one isn't
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res.a.length.should.equal(3);
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res.a[0].should.equal('ee');
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res.a[1].should.equal('ff');
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res.a[2].should.equal(42);
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res.date.getTime().should.equal(d.getTime());
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res.subobj.a.should.equal('b');
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res.subobj.b.should.equal('c');
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});
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}); // ==== End of 'Deep copying' ==== //
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describe('Modifying documents', function () {
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it('Queries not containing any modifier just replace the document by the contents of the query but keep its _id', function () {
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var obj = { some: 'thing', _id: 'keepit' }
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, updateQuery = { replace: 'done', bloup: [ 1, 8] }
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, t
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;
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t = model.modify(obj, updateQuery);
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t.replace.should.equal('done');
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t.bloup.length.should.equal(2);
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t.bloup[0].should.equal(1);
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t.bloup[1].should.equal(8);
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assert.isUndefined(t.some);
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t._id.should.equal('keepit');
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});
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it('Throw an error if trying to change the _id field in a copy-type modification', function () {
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var obj = { some: 'thing', _id: 'keepit' }
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, updateQuery = { replace: 'done', bloup: [ 1, 8], _id: 'donttryit' }
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;
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(function () {
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model.modify(obj, updateQuery);
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}).should.throw();
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updateQuery._id = 'keepit';
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model.modify(obj, updateQuery); // No error thrown
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});
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it('Throw an error if trying to use modify in a mixed copy+modify way', function () {
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var obj = { some: 'thing' }
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, updateQuery = { replace: 'me', $modify: 'metoo' };
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(function () {
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model.modify(obj, updateQuery);
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}).should.throw();
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});
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it('Throw an error if trying to use an inexistent modifier', function () {
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var obj = { some: 'thing' }
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, updateQuery = { $set: 'this exists', $modify: 'not this one' };
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(function () {
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model.modify(obj, updateQuery);
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}).should.throw();
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});
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it('Throw an error if a modifier is used with a non-object argument', function () {
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var obj = { some: 'thing' }
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, updateQuery = { $set: 'this exists' };
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(function () {
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model.modify(obj, updateQuery);
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}).should.throw();
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});
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describe('$set modifier', function () {
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it('Can change already set fields without modfifying the underlying object', function () {
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var obj = { some: 'thing', yup: 'yes', nay: 'noes' }
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, updateQuery = { $set: { some: 'changed', nay: 'yes indeed' } }
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, modified = model.modify(obj, updateQuery);
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Object.keys(modified).length.should.equal(3);
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modified.some.should.equal('changed');
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modified.yup.should.equal('yes');
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modified.nay.should.equal('yes indeed');
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Object.keys(obj).length.should.equal(3);
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obj.some.should.equal('thing');
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obj.yup.should.equal('yes');
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obj.nay.should.equal('noes');
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});
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it('Creates fields to set if they dont exist yet', function () {
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var obj = { yup: 'yes' }
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, updateQuery = { $set: { some: 'changed', nay: 'yes indeed' } }
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, modified = model.modify(obj, updateQuery);
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Object.keys(modified).length.should.equal(3);
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modified.some.should.equal('changed');
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modified.yup.should.equal('yes');
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modified.nay.should.equal('yes indeed');
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});
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it('Can set sub-fields and create them if necessary', function () {
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var obj = { yup: { subfield: 'bloup' } }
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, updateQuery = { $set: { "yup.subfield": 'changed', "yup.yop": 'yes indeed', "totally.doesnt.exist": 'now it does' } }
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, modified = model.modify(obj, updateQuery);
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_.isEqual(modified, { yup: { subfield: 'changed', yop: 'yes indeed' }, totally: { doesnt: { exist: 'now it does' } } }).should.equal(true);
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});
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});
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describe('$inc modifier', function () {
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it('Throw an error if you try to use it with a non-number or on a non number field', function () {
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(function () {
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var obj = { some: 'thing', yup: 'yes', nay: 2 }
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, updateQuery = { $inc: { nay: 'notanumber' } }
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, modified = model.modify(obj, updateQuery);
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}).should.throw();
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(function () {
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var obj = { some: 'thing', yup: 'yes', nay: 'nope' }
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, updateQuery = { $inc: { nay: 1 } }
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, modified = model.modify(obj, updateQuery);
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}).should.throw();
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});
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it('Can increment number fields or create and initialize them if needed', function () {
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var obj = { some: 'thing', nay: 40 }
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, modified;
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modified = model.modify(obj, { $inc: { nay: 2 } });
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_.isEqual(modified, { some: 'thing', nay: 42 }).should.equal(true);
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// Incidentally, this tests that obj was not modified
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modified = model.modify(obj, { $inc: { inexistent: -6 } });
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_.isEqual(modified, { some: 'thing', nay: 40, inexistent: -6 }).should.equal(true);
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});
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it('Works recursively', function () {
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var obj = { some: 'thing', nay: { nope: 40 } }
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, modified;
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modified = model.modify(obj, { $inc: { "nay.nope": -2, "blip.blop": 123 } });
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_.isEqual(modified, { some: 'thing', nay: { nope: 38 }, blip: { blop: 123 } }).should.equal(true);
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});
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});
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}); // ==== End of 'Modifying documents' ==== //
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});
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