UglifyJS/test/mocha/spidermonkey.js

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var assert = require("assert");
var exec = require("child_process").exec;
describe("spidermonkey export/import sanity test", function() {
it("should produce a functional build when using --self with spidermonkey", function (done) {
this.timeout(20000);
var uglifyjs = '"' + process.argv[0] + '" bin/uglifyjs';
var command = uglifyjs + " --self -cm --wrap SpiderUglify --dump-spidermonkey-ast | " +
uglifyjs + " --spidermonkey -cm";
exec(command, function (err, stdout) {
if (err) throw err;
eval(stdout);
assert.strictEqual(typeof SpiderUglify, "object");
var ast = SpiderUglify.parse("foo([true,,2+3]);");
assert.strictEqual(true, ast instanceof SpiderUglify.AST_Node);
ast.figure_out_scope();
ast = SpiderUglify.Compressor({}).compress(ast);
assert.strictEqual(true, ast instanceof SpiderUglify.AST_Node);
var stream = SpiderUglify.OutputStream({});
ast.print(stream);
var code = stream.toString();
assert.strictEqual(code, "foo([!0,,5]);");
done();
});
});
});