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487 lines
18 KiB
487 lines
18 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 () {
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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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});
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it('Can serialize and deserialize booleans', function () {
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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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});
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it('Can serialize and deserialize numbers', function () {
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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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});
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it('Can serialize and deserialize null', function () {
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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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});
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it('undefined fields are removed when serialized', function() {
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var a = { bloup: undefined, hello: 'world' }
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, b = model.serialize(a)
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, c = model.deserialize(b)
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;
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Object.keys(c).length.should.equal(1);
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c.hello.should.equal('world');
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assert.isUndefined(c.bloup);
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});
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it('Can serialize and deserialize a date', function () {
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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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});
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it('Can serialize and deserialize sub objects', function () {
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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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});
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it('Can serialize and deserialize sub arrays', function () {
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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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});
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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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describe('Querying', function () {
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describe('Comparing things', function () {
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it('Two things of different types cannot be equal, two identical native things are equal', function () {
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var toTest = [null, 'somestring', 42, true, new Date(72998322), { hello: 'world' }]
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, toTestAgainst = [null, 'somestring', 42, true, new Date(72998322), { hello: 'world' }] // Use another array so that we don't test pointer equality
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, i, j
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;
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for (i = 0; i < toTest.length; i += 1) {
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for (j = 0; j < toTestAgainst.length; j += 1) {
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model.areThingsEqual(toTest[i], toTestAgainst[j]).should.equal(i === j);
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}
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}
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});
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it('Can test native types null undefined string number boolean date equality', function () {
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var toTest = [null, undefined, 'somestring', 42, true, new Date(72998322), { hello: 'world' }]
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, toTestAgainst = [undefined, null, 'someotherstring', 5, false, new Date(111111), { hello: 'mars' }]
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, i
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;
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for (i = 0; i < toTest.length; i += 1) {
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model.areThingsEqual(toTest[i], toTestAgainst[i]).should.equal(false);
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}
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});
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it('If one side is an array or undefined, comparison fails', function () {
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var toTestAgainst = [null, undefined, 'somestring', 42, true, new Date(72998322), { hello: 'world' }]
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, i
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;
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for (i = 0; i < toTestAgainst.length; i += 1) {
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model.areThingsEqual([1, 2, 3], toTestAgainst[i]).should.equal(false);
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model.areThingsEqual(toTestAgainst[i], []).should.equal(false);
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model.areThingsEqual(undefined, toTestAgainst[i]).should.equal(false);
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model.areThingsEqual(toTestAgainst[i], undefined).should.equal(false);
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}
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});
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it('Can test objects equality', function () {
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model.areThingsEqual({ hello: 'world' }, {}).should.equal(false);
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model.areThingsEqual({ hello: 'world' }, { hello: 'mars' }).should.equal(false);
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model.areThingsEqual({ hello: 'world' }, { hello: 'world', temperature: 42 }).should.equal(false);
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model.areThingsEqual({ hello: 'world', other: { temperature: 42 }}, { hello: 'world', other: { temperature: 42 }}).should.equal(true);
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});
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});
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describe('Getting a fields value in dot notation', function () {
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it('Return first-level and nested values', function () {
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model.getDotValue({ hello: 'world' }, 'hello').should.equal('world');
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model.getDotValue({ hello: 'world', type: { planet: true, blue: true } }, 'type.planet').should.equal(true);
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});
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it('Return undefined if the field cannot be found in the object', function () {
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assert.isUndefined(model.getDotValue({ hello: 'world' }, 'helloo'));
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assert.isUndefined(model.getDotValue({ hello: 'world', type: { planet: true } }, 'type.plane'));
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});
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});
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describe('Field equality', function () {
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it('Can find documents with simple fields', function () {
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model.match({ test: 'yeah' }, { test: 'yea' }).should.equal(false);
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model.match({ test: 'yeah' }, { test: 'yeahh' }).should.equal(false);
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model.match({ test: 'yeah' }, { test: 'yeah' }).should.equal(true);
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});
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it('Can find documents with the dot-notation', function () {
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model.match({ test: { ooo: 'yeah' } }, { "test.ooo": 'yea' }).should.equal(false);
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model.match({ test: { ooo: 'yeah' } }, { "test.oo": 'yeah' }).should.equal(false);
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model.match({ test: { ooo: 'yeah' } }, { "tst.ooo": 'yeah' }).should.equal(false);
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model.match({ test: { ooo: 'yeah' } }, { "test.ooo": 'yeah' }).should.equal(true);
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});
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it('Cannot find undefined', function () {
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model.match({ test: undefined }, { test: undefined }).should.equal(false);
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model.match({ test: { pp: undefined } }, { "test.pp": undefined }).should.equal(false);
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});
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it('For an array field, a match means a match on at least one element', function () {
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model.match({ tags: ['node', 'js', 'db'] }, { tags: 'python' }).should.equal(false);
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model.match({ tags: ['node', 'js', 'db'] }, { tagss: 'js' }).should.equal(false);
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model.match({ tags: ['node', 'js', 'db'] }, { tags: 'js' }).should.equal(true);
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model.match({ tags: ['node', 'js', 'db'] }, { tags: 'js', tags: 'node' }).should.equal(true);
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// Mixed matching with array and non array
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model.match({ tags: ['node', 'js', 'db'], nedb: true }, { tags: 'js', nedb: true }).should.equal(true);
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// Nested matching
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model.match({ number: 5, data: { tags: ['node', 'js', 'db'] } }, { "data.tags": 'js' }).should.equal(true);
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model.match({ number: 5, data: { tags: ['node', 'js', 'db'] } }, { "data.tags": 'j' }).should.equal(false);
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});
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});
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describe('$lt', function () {
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it('Cannot compare a field to an object, an array, null or a boolean, it will return false', function () {
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model.match({ a: 5 }, { a: { $lt: { a: 6 } } }).should.equal(false);
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model.match({ a: 5 }, { a: { $lt: [6, 7] } }).should.equal(false);
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model.match({ a: 5 }, { a: { $lt: null } }).should.equal(false);
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model.match({ a: 5 }, { a: { $lt: true } }).should.equal(false);
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});
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it('Can compare numbers, with or without dot notation', function () {
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model.match({ a: 5 }, { a: { $lt: 6 } }).should.equal(true);
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model.match({ a: 5 }, { a: { $lt: 3 } }).should.equal(false);
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model.match({ a: { b: 5 } }, { "a.b": { $lt: 6 } }).should.equal(true);
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model.match({ a: { b: 5 } }, { "a.b": { $lt: 3 } }).should.equal(false);
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});
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it('Can compare strings, with or without dot notation', function () {
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model.match({ a: "nedb" }, { a: { $lt: "nedc" } }).should.equal(true);
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model.match({ a: "nedb" }, { a: { $lt: "neda" } }).should.equal(false);
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model.match({ a: { b: "nedb" } }, { "a.b": { $lt: "nedc" } }).should.equal(true);
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model.match({ a: { b: "nedb" } }, { "a.b": { $lt: "neda" } }).should.equal(false);
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});
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it('If field is an array field, a match means a match on at least one element', function () {
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model.match({ a: [5, 10] }, { a: { $lt: 4 } }).should.equal(false);
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model.match({ a: [5, 10] }, { a: { $lt: 6 } }).should.equal(true);
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model.match({ a: [5, 10] }, { a: { $lt: 11 } }).should.equal(true);
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});
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});
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describe('Logical operators $or, $and', function () {
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it('Any of the subqueries should match for an $or to match', function () {
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model.match({ hello: 'world' }, { $or: [ { hello: 'pluton' }, { hello: 'world' } ] }).should.equal(true);
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model.match({ hello: 'pluton' }, { $or: [ { hello: 'pluton' }, { hello: 'world' } ] }).should.equal(true);
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model.match({ hello: 'nope' }, { $or: [ { hello: 'pluton' }, { hello: 'world' } ] }).should.equal(false);
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model.match({ hello: 'world', age: 15 }, { $or: [ { hello: 'pluton' }, { age: { $lt: 20 } } ] }).should.equal(true);
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model.match({ hello: 'world', age: 15 }, { $or: [ { hello: 'pluton' }, { age: { $lt: 10 } } ] }).should.equal(false);
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});
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it('All of the subqueries should match for an $and to match', function () {
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model.match({ hello: 'world', age: 15 }, { $and: [ { age: 15 }, { hello: 'world' } ] }).should.equal(true);
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model.match({ hello: 'world', age: 15 }, { $and: [ { age: 16 }, { hello: 'world' } ] }).should.equal(false);
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model.match({ hello: 'world', age: 15 }, { $and: [ { hello: 'world' }, { age: { $lt: 20 } } ] }).should.equal(true);
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model.match({ hello: 'world', age: 15 }, { $and: [ { hello: 'pluton' }, { age: { $lt: 20 } } ] }).should.equal(false);
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});
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});
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}); // ==== End of 'Finding documents' ==== //
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});
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