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var fs = require('fs'),
uglify = require('../../uglify-js'),
jsp = uglify.parser,
nodeunit = require('nodeunit'),
path = require('path'),
pro = uglify.uglify;
var Script = process.binding('evals').Script;
var scriptsPath = __dirname;
function compress(code) {
var ast = jsp.parse(code);
ast = pro.ast_mangle(ast);
ast = pro.ast_squeeze(ast, { no_warnings: true });
ast = pro.ast_squeeze_more(ast);
return pro.gen_code(ast);
};
var testDir = path.join(scriptsPath, "compress", "test");
var expectedDir = path.join(scriptsPath, "compress", "expected");
function getTester(script) {
return function(test) {
var testPath = path.join(testDir, script);
var expectedPath = path.join(expectedDir, script);
var content = fs.readFileSync(testPath, 'utf-8');
var outputCompress = compress(content);
// Check if the noncompressdata is larger or same size as the compressed data
test.ok(content.length >= outputCompress.length);
// Check that a recompress gives the same result
var outputReCompress = compress(content);
test.equal(outputCompress, outputReCompress);
// Check if the compressed output is what is expected
var expected = fs.readFileSync(expectedPath, 'utf-8');
test.equal(outputCompress, expected.replace(/(\r?\n)+$/, ""));
test.done();
};
};
var tests = {};
var scripts = fs.readdirSync(testDir);
for (var i in scripts) {
var script = scripts[i];
if (/\.js$/.test(script)) {
tests[script] = getTester(script);
}
}
module.exports = nodeunit.testCase(tests);
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