utils.test.js
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"use strict";
var chai = require('chai')
, spies = require('chai-spies')
, expect = chai.expect
, Utils = require(__dirname + '/../lib/utils')
, Support = require(__dirname + '/support');
chai.use(spies);
chai.config.includeStack = true;
describe(Support.getTestDialectTeaser("Utils"), function() {
describe('removeCommentsFromFunctionString', function() {
it("removes line comments at the start of a line", function() {
var functionWithLineComments = function() {
// noot noot
};
var string = functionWithLineComments.toString()
, result = Utils.removeCommentsFromFunctionString(string);
expect(result).not.to.match(/.*noot.*/);
});
it("removes lines comments in the middle of a line", function() {
var functionWithLineComments = function() {
alert(1); // noot noot
};
var string = functionWithLineComments.toString()
, result = Utils.removeCommentsFromFunctionString(string);
expect(result).not.to.match(/.*noot.*/);
});
it("removes range comments", function() {
var s = function() {
alert(1); /*
noot noot
*/
alert(2); /*
foo
*/
}.toString();
var result = Utils.removeCommentsFromFunctionString(s);
expect(result).not.to.match(/.*noot.*/);
expect(result).not.to.match(/.*foo.*/);
expect(result).to.match(/.*alert\(2\).*/);
});
});
describe('argsArePrimaryKeys', function() {
it("doesn't detect primary keys if primareyKeys and values have different lengths", function() {
expect(Utils.argsArePrimaryKeys([1,2,3], [1])).to.be.false;
});
it("doesn't detect primary keys if primary keys are hashes or arrays", function() {
expect(Utils.argsArePrimaryKeys([[]], [1])).to.be.false;
});
it('detects primary keys if length is correct and data types are matching', function() {
expect(Utils.argsArePrimaryKeys([1,2,3], ["INTEGER", "INTEGER", "INTEGER"])).to.be.true;
});
it("detects primary keys if primary keys are dates and lengths are matching", function() {
expect(Utils.argsArePrimaryKeys([new Date()], ['foo'])).to.be.true;
});
});
describe('underscore', function() {
describe('underscoredIf', function() {
it('is defined', function() {
expect(Utils._.underscoredIf).to.be.ok;
});
it('underscores if second param is true', function() {
expect(Utils._.underscoredIf('fooBar', true)).to.equal('foo_bar');
});
it("doesn't underscore if second param is false", function() {
expect(Utils._.underscoredIf('fooBar', false)).to.equal('fooBar');
});
});
describe('camelizeIf', function() {
it('is defined', function() {
expect(Utils._.camelizeIf).to.be.ok;
});
it('camelizes if second param is true', function() {
expect(Utils._.camelizeIf('foo_bar', true)).to.equal('fooBar');
});
it("doesn't camelize if second param is false", function() {
expect(Utils._.underscoredIf('fooBar', true)).to.equal('foo_bar');
});
});
});
describe('format', function() {
it('should format where clause correctly when the value is truthy', function() {
var where = ['foo = ?', 1];
expect(Utils.format(where)).to.equal('foo = 1');
});
it('should format where clause correctly when the value is false', function() {
var where = ['foo = ?', 0];
expect(Utils.format(where)).to.equal('foo = 0');
});
});
describe('validateParameter', function() {
describe('method signature', function() {
it('throws an error if the value is not defined', function() {
expect(function() {
Utils.validateParameter();
}).to.throw('No value has been passed.');
});
it('does not throw an error if the value is not defined and the parameter is optional', function() {
expect(function() {
Utils.validateParameter(undefined, Object, { optional: true });
}).to.not.throw();
});
it('throws an error if the expectation is not defined', function() {
expect(function() {
Utils.validateParameter(1);
}).to.throw('No expectation has been passed.');
});
});
describe('expectation', function() {
it('uses the instanceof method if the expectation is a class', function() {
expect(Utils.validateParameter(new Number(1), Number)).to.be.true;
});
});
describe('failing expectations', function() {
it('throws an error if the expectation does not match', function() {
expect(function() {
Utils.validateParameter(1, String);
}).to.throw(/The parameter.*is no.*/);
});
});
});
if (Support.getTestDialect() === 'postgres') {
describe('json', function () {
var queryGenerator = require('../lib/dialects/postgres/query-generator.js');
it('successfully parses a complex nested condition hash', function() {
var conditions = {
metadata: {
language: 'icelandic',
pg_rating: { 'dk': 'G' }
},
another_json_field: { x: 1 }
};
var expected = "metadata#>>'{language}' = 'icelandic' and metadata#>>'{pg_rating,dk}' = 'G' and another_json_field#>>'{x}' = '1'";
expect(queryGenerator.handleSequelizeMethod(new Utils.json(conditions))).to.deep.equal(expected);
});
it('successfully parses a string using dot notation', function () {
var path = 'metadata.pg_rating.dk';
expect(queryGenerator.handleSequelizeMethod(new Utils.json(path))).to.equal("metadata#>>'{pg_rating,dk}'");
});
it('allows postgres json syntax', function () {
var path = 'metadata->pg_rating->>dk';
expect(queryGenerator.handleSequelizeMethod(new Utils.json(path))).to.equal(path);
});
it('can take a value to compare against', function () {
var path = 'metadata.pg_rating.is';
var value = 'U';
expect(queryGenerator.handleSequelizeMethod(new Utils.json(path, value))).to.equal("metadata#>>'{pg_rating,is}' = 'U'");
});
});
}
describe('inflection', function () {
it('works better than lingo ;)', function () {
expect(Utils.pluralize('buy')).to.equal('buys');
expect(Utils.pluralize('holiday')).to.equal('holidays');
expect(Utils.pluralize('days')).to.equal('days');
expect(Utils.pluralize('status')).to.equal('statuses');
expect(Utils.singularize('status')).to.equal('status');
});
});
});