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file.test.js
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var path = require('path');
require('chai').should();
var BundleGenerator = require('../lib/bundleGenerator.js');
var SourceLocator = require('../lib/source-locator');
var testHelpers = {};
describe('BundleGenerator', function () {
var file;
describe('without source map', function () {
beforeEach(function () {
file = new BundleGenerator('1.js', false);
});
describe('writeLine()', function () {
it('should add a new line to the output', function () {
file.writeLine('line 1');
file.writeLine('line 2');
file.render().should.equal('line 1\nline 2\n');
});
});
describe('writeContent()', function () {
it('should add content to the output', function () {
file.writeContent('line 1\nline 2');
file.writeContent('line 3\nline 4');
file.render().should.equal('line 1\nline 2\nline 3\nline 4\n');
});
});
describe('writeFileContent()', function () {
it('should add content to the output', function () {
file.writeFileContent('2.js', 'line 1\nline 2');
file.writeFileContent('2.js', 'line 3\nline 4');
file.render().should.equal('line 1\nline 2\nline 3\nline 4\n');
});
});
describe('_write()', function () {
it('should add content to the output', function () {
file._write('1');
file._write('2');
file._write('3\n');
file._write('4\n5');
file.render().should.equal('123\n4\n5');
});
it('should move cursor forward', function () {
file.getCursor().line.should.equal(1);
file.getCursor().column.should.equal(0);
file._write('123');
file.getCursor().line.should.equal(1);
file.getCursor().column.should.equal(3);
file._write('456');
file.getCursor().line.should.equal(1);
file.getCursor().column.should.equal(6);
file._write('\n');
file.getCursor().line.should.equal(2);
file.getCursor().column.should.equal(0);
file._write('\n\n');
file.getCursor().line.should.equal(4);
file.getCursor().column.should.equal(0);
file._write('\n123');
file.getCursor().line.should.equal(5);
file.getCursor().column.should.equal(3);
});
});
describe('_writeFileFragment()', function () {
it('should add content to the output', function () {
file._writeFileFragment('2.js', 'line 1\nline 2', 1, 0);
file._writeFileFragment('2.js', 'line 3\nline 4', 2, 0);
file.render().should.equal('line 1\nline 2line 3\nline 4');
});
});
});
describe('with source map', function () {
beforeEach(function () {
file = new BundleGenerator('1.js', true);
});
describe('writeLine()', function () {
it('should add a new line to the output', function () {
file.writeLine('line 1');
file.writeLine('line 2');
testHelpers.hasSourceMap(file.render()).should.equal(true);
testHelpers.stripSourceMap(file.render()).should.equal('line 1\nline 2\n');
});
});
describe('writeContent()', function () {
it('should add content to the output', function () {
file.writeContent('line 1\nline 2');
file.writeContent('line 3\nline 4');
testHelpers.hasSourceMap(file.render()).should.equal(true);
testHelpers.stripSourceMap(file.render()).should.equal('line 1\nline 2\nline 3\nline 4\n');
});
});
describe('writeFileContent()', function () {
it('should add content to the output', function () {
file.writeFileContent('2.js', 'line 1\nline 2');
file.writeFileContent('2.js', 'line 3\nline 4');
testHelpers.hasSourceMap(file.render()).should.equal(true);
testHelpers.stripSourceMap(file.render()).should.equal('line 1\nline 2\nline 3\nline 4\n');
});
});
describe('_write()', function () {
it('should add content to the output', function () {
file._write('1');
file._write('2');
file._write('3\n');
file._write('4\n5\n');
testHelpers.hasSourceMap(file.render()).should.equal(true);
testHelpers.stripSourceMap(file.render()).should.equal('123\n4\n5\n');
});
it('should move cursor forward', function () {
file.getCursor().line.should.equal(1);
file.getCursor().column.should.equal(0);
file._write('123');
file.getCursor().line.should.equal(1);
file.getCursor().column.should.equal(3);
file._write('456');
file.getCursor().line.should.equal(1);
file.getCursor().column.should.equal(6);
file._write('\n');
file.getCursor().line.should.equal(2);
file.getCursor().column.should.equal(0);
file._write('\n\n');
file.getCursor().line.should.equal(4);
file.getCursor().column.should.equal(0);
file._write('\n123');
file.getCursor().line.should.equal(5);
file.getCursor().column.should.equal(3);
});
});
describe('_writeFileFragment()', function () {
it('should add content to the output', function () {
file._write('_');
file._writeFileFragment('2.js', 'line 1\nline 2', 1, 0);
file._writeFileFragment('3.js', 'line 3\nline 4', 2, 3);
testHelpers.hasSourceMap(file.render()).should.equal(true);
testHelpers.stripSourceMap(file.render()).should.equal('_line 1\nline 2line 3\nline 4\n');
var locator = new SourceLocator('1.js', file.render());
var loc1 = locator.locate(1, 0);
loc1.source.should.equal('1.js');
loc1.line.should.equal(1);
loc1.column.should.equal(0);
var loc2 = locator.locate(1, 1);
loc2.source.should.equal(path.resolve(__dirname + '/../2.js'));
loc2.line.should.equal(1);
loc2.column.should.equal(0);
var loc3 = locator.locate(2, 1);
loc3.source.should.equal(path.resolve(__dirname + '/../2.js'));
loc3.line.should.equal(2);
loc3.column.should.equal(1);
var loc4 = locator.locate(2, 6);
loc4.source.should.equal(path.resolve(__dirname + '/../3.js'));
loc4.line.should.equal(2);
loc4.column.should.equal(3);
var loc5 = locator.locate(3, 1);
loc5.source.should.equal(path.resolve(__dirname + '/../3.js'));
loc5.line.should.equal(3);
loc5.column.should.equal(1);
});
});
describe('render()', function () {
it('should produce correct source map', function () {
file.writeContent('// Hello World');
file.writeContent('// Some unmapped content');
file.writeFileContent(
'func1.js',
'// anonymous function here\n' +
'var f1 = function() {\n' +
' return 1;\n' +
'};\n' +
'// end of anonymous function\n'
);
file.writeFileContent(
'func2.js',
'// named function here\n' +
' function f1() {\n' +
' return 1;\n' +
' }\n' +
'// end of named function\n'
);
var locator = new SourceLocator('1.js', file.render());
var comment1Loc = locator.locate(1, 3);
comment1Loc.source.should.equal('1.js');
comment1Loc.line.should.equal(1);
comment1Loc.column.should.equal(3);
var function1Loc = locator.locate(4, 9);
function1Loc.source.should.equal(path.resolve(__dirname + '/../func1.js'));
function1Loc.line.should.equal(2);
function1Loc.column.should.equal(9);
});
});
});
});
testHelpers.hasSourceMap = function hasSourceMap(source) {
var lines = source.split('\n');
return lines[lines.length - 1].indexOf('//# sourceMappingURL=') === 0;
};
testHelpers.stripSourceMap = function stripSourceMap(source) {
var lines = source.split('\n');
lines.pop();
return lines.join('\n') + '\n';
};