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improve false positive detection in ufuzz (#3982)

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This commit is contained in:
Alex Lam S.L
2020-06-10 00:28:56 +01:00
committed by GitHub
parent 45db96679e
commit 2a9d0fc6fb
1 changed files with 5 additions and 9 deletions
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14
test/ufuzz/index.js
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@@ -1167,6 +1167,10 @@ function log(options) {
} }
} }
function sort_globals(code) {
return "var " + sandbox.run_code("throw Object.keys(this).sort();" + code).join(",") + ";" + code;
}
function fuzzy_match(original, uglified) { function fuzzy_match(original, uglified) {
uglified = uglified.split(" "); uglified = uglified.split(" ");
var i = uglified.length; var i = uglified.length;
@@ -1245,14 +1249,6 @@ var fallback_options = [ JSON.stringify({
mangle: false mangle: false
}) ]; }) ];
var minify_options = require("./options.json").map(JSON.stringify); var minify_options = require("./options.json").map(JSON.stringify);
var sort_globals = [
"Object.keys(this).sort().forEach(function(name) {",
" var value = this[name];",
" delete this[name];",
" this[name] = value;",
"});",
"",
].join("\n");
var original_code, original_result, errored; var original_code, original_result, errored;
var uglify_code, uglify_result, ok; var uglify_code, uglify_result, ok;
for (var round = 1; round <= num_iterations; round++) { for (var round = 1; round <= num_iterations; round++) {
@@ -1274,7 +1270,7 @@ for (var round = 1; round <= num_iterations; round++) {
ok = sandbox.same_stdout(original_result, uglify_result); ok = sandbox.same_stdout(original_result, uglify_result);
// ignore declaration order of global variables // ignore declaration order of global variables
if (!ok && !toplevel) { if (!ok && !toplevel) {
ok = sandbox.same_stdout(sandbox.run_code(sort_globals + original_code), sandbox.run_code(sort_globals + uglify_code)); ok = sandbox.same_stdout(sandbox.run_code(sort_globals(original_code)), sandbox.run_code(sort_globals(uglify_code)));
} }
// ignore numerical imprecision caused by `unsafe_math` // ignore numerical imprecision caused by `unsafe_math`
if (!ok && typeof uglify_result == "string" && o.compress && o.compress.unsafe_math) { if (!ok && typeof uglify_result == "string" && o.compress && o.compress.unsafe_math) {