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var assert = require("assert");
var UglifyJS = require("../..");
describe("let", function() {
this.timeout(30000);
it("Should not produce reserved keywords as variable name in mangle", function() {
// Produce a lot of variables in a function and run it through mangle.
var s = '"dddddeeeeelllllooooottttt"; function foo() {';
for (var i = 0; i < 18000; i++) {
s += "var v" + i + "=0;";
}
s += '}';
var result = UglifyJS.minify(s, {
compress: false
}).code;
// Verify that select keywords and reserved keywords not produced
[
"do",
"let",
"var",
].forEach(function(name) {
assert.strictEqual(result.indexOf("var " + name + "="), -1);
});
// Verify that the variable names that appeared immediately before
// and after the erroneously generated variable name still exist
// to show the test generated enough symbols.
[
"to", "eo",
"eet", "fet",
"rar", "oar",
].forEach(function(name) {
assert.notStrictEqual(result.indexOf("var " + name + "="), -1);
});
});
it("Should quote mangled properties that are reserved keywords", function() {
var s = '"rrrrrnnnnniiiiiaaaaa";';
for (var i = 0; i < 18000; i++) {
s += "v.b" + i + ";";
}
var result = UglifyJS.minify(s, {
compress: false,
ie8: true,
mangle: {
properties: true,
}
}).code;
[
"in",
"var",
].forEach(function(name) {
assert.notStrictEqual(result.indexOf(name), -1);
assert.notStrictEqual(result.indexOf('v["' + name + '"]'), -1);
});
});
});
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