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/* jshint latedef: nofunc */
module.exports = function() {
var path = require('path'),
fs = require('fs'),
copyBom = require('./copy-bom')(),
doBomTest = false,
clone = require('clone');
var less = require('../lib/less-node');
var stylize = require('../lib/less-node/lessc-helper').stylize;
var globals = Object.keys(global);
var oneTestOnly = process.argv[2],
isFinished = false;
var isVerbose = process.env.npm_config_loglevel !== 'concise';
var normalFolder = 'test/less';
var bomFolder = 'test/less-bom';
// Define String.prototype.endsWith if it doesn't exist (in older versions of node)
// This is required by the testSourceMap function below
if (typeof String.prototype.endsWith !== 'function') {
String.prototype.endsWith = function (str) {
return this.slice(-str.length) === str;
}
}
less.logger.addListener({
info: function(msg) {
if (isVerbose) {
process.stdout.write(msg + '\n');
}
},
warn: function(msg) {
process.stdout.write(msg + '\n');
},
error: function(msg) {
process.stdout.write(msg + '\n');
}
});
var queueList = [],
queueRunning = false;
function queue(func) {
if (queueRunning) {
// console.log("adding to queue");
queueList.push(func);
} else {
// console.log("first in queue - starting");
queueRunning = true;
func();
}
}
function release() {
if (queueList.length) {
// console.log("running next in queue");
var func = queueList.shift();
setTimeout(func, 0);
} else {
// console.log("stopping queue");
queueRunning = false;
}
}
var totalTests = 0,
failedTests = 0,
passedTests = 0,
finishTimer = setInterval(endTest, 500);
less.functions.functionRegistry.addMultiple({
add: function (a, b) {
return new(less.tree.Dimension)(a.value + b.value);
},
increment: function (a) {
return new(less.tree.Dimension)(a.value + 1);
},
_color: function (str) {
if (str.value === 'evil red') { return new(less.tree.Color)('600'); }
}
});
function testSourcemap(name, err, compiledLess, doReplacements, sourcemap, baseFolder) {
if (err) {
fail('ERROR: ' + (err && err.message));
return;
}
// Check the sourceMappingURL at the bottom of the file
var expectedSourceMapURL = name + '.css.map',
sourceMappingPrefix = '/*# sourceMappingURL=',
sourceMappingSuffix = ' */',
expectedCSSAppendage = sourceMappingPrefix + expectedSourceMapURL + sourceMappingSuffix;
if (!compiledLess.endsWith(expectedCSSAppendage)) {
// To display a better error message, we need to figure out what the actual sourceMappingURL value was, if it was even present
var indexOfSourceMappingPrefix = compiledLess.indexOf(sourceMappingPrefix);
if (indexOfSourceMappingPrefix === -1) {
fail('ERROR: sourceMappingURL was not found in ' + baseFolder + '/' + name + '.css.');
return;
}
var startOfSourceMappingValue = indexOfSourceMappingPrefix + sourceMappingPrefix.length,
indexOfNextSpace = compiledLess.indexOf(' ', startOfSourceMappingValue),
actualSourceMapURL = compiledLess.substring(startOfSourceMappingValue, indexOfNextSpace === -1 ? compiledLess.length : indexOfNextSpace);
fail('ERROR: sourceMappingURL should be "' + expectedSourceMapURL + '" but is "' + actualSourceMapURL + '".');
}
fs.readFile(path.join('test/', name) + '.json', 'utf8', function (e, expectedSourcemap) {
process.stdout.write('- ' + path.join(baseFolder, name) + ': ');
if (sourcemap === expectedSourcemap) {
ok('OK');
} else if (err) {
fail('ERROR: ' + (err && err.message));
if (isVerbose) {
process.stdout.write('\n');
process.stdout.write(err.stack + '\n');
}
} else {
difference('FAIL', expectedSourcemap, sourcemap);
}
});
}
function testEmptySourcemap(name, err, compiledLess, doReplacements, sourcemap, baseFolder) {
process.stdout.write('- ' + path.join(baseFolder, name) + ': ');
if (err) {
fail('ERROR: ' + (err && err.message));
} else {
var expectedSourcemap = undefined;
if ( compiledLess !== '' ) {
difference('\nCompiledLess must be empty', '', compiledLess);
} else if (sourcemap !== expectedSourcemap) {
fail('Sourcemap must be undefined');
} else {
ok('OK');
}
}
}
function testErrors(name, err, compiledLess, doReplacements, sourcemap, baseFolder) {
fs.readFile(path.join(baseFolder, name) + '.txt', 'utf8', function (e, expectedErr) {
process.stdout.write('- ' + path.join(baseFolder, name) + ': ');
expectedErr = doReplacements(expectedErr, baseFolder, err && err.filename);
if (!err) {
if (compiledLess) {
fail('No Error', 'red');
} else {
fail('No Error, No Output');
}
} else {
var errMessage = err.toString();
if (errMessage === expectedErr) {
ok('OK');
} else {
difference('FAIL', expectedErr, errMessage);
}
}
});
}
// https://github.com/less/less.js/issues/3112
function testJSImport() {
process.stdout.write('- Testing root function registry');
less.functions.functionRegistry.add('ext', function() {
return new less.tree.Anonymous('file');
});
var expected = '@charset "utf-8";\n';
toCSS({}, require('path').join(process.cwd(), 'test/less/root-registry/root.less'), function(error, output) {
if (error) {
return fail('ERROR: ' + error);
}
if (output.css === expected) {
return ok('OK');
}
difference('FAIL', expected, output.css);
});
}
function globalReplacements(input, directory, filename) {
var path = require('path');
var p = filename ? path.join(path.dirname(filename), '/') : path.join(process.cwd(), directory),
pathimport = path.join(process.cwd(), directory + 'import/'),
pathesc = p.replace(/[.:/\\]/g, function(a) { return '\\' + (a == '\\' ? '\/' : a); }),
pathimportesc = pathimport.replace(/[.:/\\]/g, function(a) { return '\\' + (a == '\\' ? '\/' : a); });
return input.replace(/\{path\}/g, p)
.replace(/\{node\}/g, '')
.replace(/\{\/node\}/g, '')
.replace(/\{pathhref\}/g, '')
.replace(/\{404status\}/g, '')
.replace(/\{nodepath\}/g, path.join(process.cwd(), 'node_modules', '/'))
.replace(/\{pathrel\}/g, path.join(path.relative(process.cwd(), p), '/'))
.replace(/\{pathesc\}/g, pathesc)
.replace(/\{pathimport\}/g, pathimport)
.replace(/\{pathimportesc\}/g, pathimportesc)
.replace(/\r\n/g, '\n');
}
function checkGlobalLeaks() {
return Object.keys(global).filter(function(v) {
return globals.indexOf(v) < 0;
});
}
function testSyncronous(options, filenameNoExtension) {
if (oneTestOnly && ('Test Sync ' + filenameNoExtension) !== oneTestOnly) {
return;
}
totalTests++;
queue(function() {
var isSync = true;
toCSS(options, path.join(normalFolder, filenameNoExtension + '.less'), function (err, result) {
process.stdout.write('- Test Sync ' + filenameNoExtension + ': ');
if (isSync) {
ok('OK');
} else {
fail('Not Sync');
}
release();
});
isSync = false;
});
}
function prepBomTest() {
copyBom.copyFolderWithBom(normalFolder, bomFolder);
doBomTest = true;
}
function runTestSet(options, foldername, verifyFunction, nameModifier, doReplacements, getFilename) {
options = options ? clone(options) : {};
runTestSetInternal(normalFolder, options, foldername, verifyFunction, nameModifier, doReplacements, getFilename);
if (doBomTest) {
runTestSetInternal(bomFolder, options, foldername, verifyFunction, nameModifier, doReplacements, getFilename);
}
}
function runTestSetNormalOnly(options, foldername, verifyFunction, nameModifier, doReplacements, getFilename) {
runTestSetInternal(normalFolder, options, foldername, verifyFunction, nameModifier, doReplacements, getFilename);
}
function runTestSetInternal(baseFolder, opts, foldername, verifyFunction, nameModifier, doReplacements, getFilename) {
foldername = foldername || '';
var originalOptions = opts || {};
if (!doReplacements) {
doReplacements = globalReplacements;
}
function getBasename(file) {
return foldername + path.basename(file, '.less');
}
fs.readdirSync(path.join(baseFolder, foldername)).forEach(function (file) {
if (!/\.less$/.test(file)) { return; }
var options = clone(originalOptions);
var name = getBasename(file);
if (oneTestOnly && name !== oneTestOnly) {
return;
}
totalTests++;
if (options.sourceMap && !options.sourceMap.sourceMapFileInline) {
options.sourceMap = {
sourceMapOutputFilename: name + '.css',
sourceMapBasepath: path.join(process.cwd(), baseFolder),
sourceMapRootpath: 'testweb/'
};
// This options is normally set by the bin/lessc script. Setting it causes the sourceMappingURL comment to be appended to the CSS
// output. The value is designed to allow the sourceMapBasepath option to be tested, as it should be removed by less before
// setting the sourceMappingURL value, leaving just the sourceMapOutputFilename and .map extension.
options.sourceMap.sourceMapFilename = options.sourceMap.sourceMapBasepath + '/' + options.sourceMap.sourceMapOutputFilename + '.map';
}
options.getVars = function(file) {
try {
return JSON.parse(fs.readFileSync(getFilename(getBasename(file), 'vars', baseFolder), 'utf8'));
}
catch (e) {
return {};
}
};
var doubleCallCheck = false;
queue(function() {
toCSS(options, path.join(baseFolder, foldername + file), function (err, result) {
if (doubleCallCheck) {
totalTests++;
fail('less is calling back twice');
process.stdout.write(doubleCallCheck + '\n');
process.stdout.write((new Error()).stack + '\n');
return;
}
doubleCallCheck = (new Error()).stack;
if (verifyFunction) {
var verificationResult = verifyFunction(name, err, result && result.css, doReplacements, result && result.map, baseFolder);
release();
return verificationResult;
}
if (err) {
fail('ERROR: ' + (err && err.message));
if (isVerbose) {
process.stdout.write('\n');
if (err.stack) {
process.stdout.write(err.stack + '\n');
} else {
// this sometimes happen - show the whole error object
console.log(err);
}
}
release();
return;
}
var css_name = name;
if (nameModifier) { css_name = nameModifier(name); }
fs.readFile(path.join('test/css', css_name) + '.css', 'utf8', function (e, css) {
process.stdout.write('- ' + path.join(baseFolder, css_name) + ': ');
css = css && doReplacements(css, path.join(baseFolder, foldername));
if (result.css === css) { ok('OK'); }
else {
difference('FAIL', css, result.css);
}
release();
});
});
});
});
}
function diff(left, right) {
require('diff').diffLines(left, right).forEach(function(item) {
if (item.added || item.removed) {
var text = item.value && item.value.replace('\n', String.fromCharCode(182) + '\n').replace('\ufeff', '[[BOM]]');
process.stdout.write(stylize(text, item.added ? 'green' : 'red'));
} else {
process.stdout.write(item.value && item.value.replace('\ufeff', '[[BOM]]'));
}
});
process.stdout.write('\n');
}
function fail(msg) {
process.stdout.write(stylize(msg, 'red') + '\n');
failedTests++;
endTest();
}
function difference(msg, left, right) {
process.stdout.write(stylize(msg, 'yellow') + '\n');
failedTests++;
diff(left, right);
endTest();
}
function ok(msg) {
process.stdout.write(stylize(msg, 'green') + '\n');
passedTests++;
endTest();
}
function finished() {
isFinished = true;
endTest();
}
function endTest() {
if (isFinished && ((failedTests + passedTests) >= totalTests)) {
clearInterval(finishTimer);
var leaked = checkGlobalLeaks();
process.stdout.write('\n');
if (failedTests > 0) {
process.stdout.write(failedTests + stylize(' Failed', 'red') + ', ' + passedTests + ' passed\n');
} else {
process.stdout.write(stylize('All Passed ', 'green') + passedTests + ' run\n');
}
if (leaked.length > 0) {
process.stdout.write('\n');
process.stdout.write(stylize('Global leak detected: ', 'red') + leaked.join(', ') + '\n');
}
if (leaked.length || failedTests) {
process.on('exit', function() { process.reallyExit(1); });
}
}
}
function contains(fullArray, obj) {
for (var i = 0; i < fullArray.length; i++) {
if (fullArray[i] === obj) {
return true;
}
}
return false;
}
function toCSS(options, path, callback) {
options = options || {};
var str = fs.readFileSync(path, 'utf8'), addPath = require('path').dirname(path);
if (typeof options.paths !== 'string') {
options.paths = options.paths || [];
if (!contains(options.paths, addPath)) {
options.paths.push(addPath);
}
}
options.filename = require('path').resolve(process.cwd(), path);
options.optimization = options.optimization || 0;
if (options.globalVars) {
options.globalVars = options.getVars(path);
} else if (options.modifyVars) {
options.modifyVars = options.getVars(path);
}
if (options.plugin) {
var Plugin = require(require('path').resolve(process.cwd(), options.plugin));
options.plugins = [Plugin];
}
less.render(str, options, callback);
}
function testNoOptions() {
if (oneTestOnly && 'Integration' !== oneTestOnly) {
return;
}
totalTests++;
try {
process.stdout.write('- Integration - creating parser without options: ');
less.render('');
} catch (e) {
fail(stylize('FAIL\n', 'red'));
return;
}
ok(stylize('OK\n', 'green'));
}
return {
runTestSet: runTestSet,
runTestSetNormalOnly: runTestSetNormalOnly,
testSyncronous: testSyncronous,
testErrors: testErrors,
testSourcemap: testSourcemap,
testEmptySourcemap: testEmptySourcemap,
testNoOptions: testNoOptions,
prepBomTest: prepBomTest,
testJSImport: testJSImport,
finished: finished
};
};