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support limited ufuzz testing for import (#4707)

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This commit is contained in:
Alex Lam S.L
2021-02-28 18:27:41 +00:00
committed by GitHub
parent c549ee89b9
commit 81254f67e4
4 changed files with 45 additions and 11 deletions
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31
test/ufuzz/index.js
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@@ -382,7 +382,7 @@ function strictMode() {
}
function appendExport(stmtDepth, allowDefault) {
if (stmtDepth == 1 && rng(20) == 0) {
if (SUPPORT.destructuring && stmtDepth == 1 && rng(20) == 0) {
if (allowDefault && !export_default && rng(5) == 0) {
export_default = true;
return "export default ";
@@ -1009,7 +1009,7 @@ function createStatement(recurmax, canThrow, canBreak, canContinue, cannotReturn
case STMT_SEMI:
return use_strict && rng(20) === 0 ? '"use strict";' : ";";
case STMT_EXPR:
if (stmtDepth == 1 && !export_default && rng(20) == 0) {
if (SUPPORT.destructuring && stmtDepth == 1 && !export_default && rng(20) == 0) {
export_default = true;
return "export default " + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ";";
}
@@ -1019,7 +1019,26 @@ function createStatement(recurmax, canThrow, canBreak, canContinue, cannotReturn
// note: default does not _need_ to be last
return "switch (" + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ") { " + createSwitchParts(recurmax, 4, canThrow, canBreak, canContinue, cannotReturn, stmtDepth) + "}";
case STMT_VAR:
if (SUPPORT.destructuring && rng(20) == 0) {
if (SUPPORT.destructuring && stmtDepth == 1 && rng(5) == 0) {
unique_vars.push("c");
var s = rng(2) ? " " + createVarName(MANDATORY) : "";
if (rng(10)) {
if (s) s += ",";
if (rng(2)) {
s += " * as " + createVarName(MANDATORY);
} else {
var names = [];
for (var i = rng(4); --i >= 0;) {
var name = createVarName(MANDATORY);
names.push(rng(2) ? getDotKey() + " as " + name : name);
}
s += " { " + names.join(", ") + " }";
}
}
unique_vars.pop();
if (s) s += " from";
return "import" + s + ' "path/to/module.js";';
} else if (SUPPORT.destructuring && rng(20) == 0) {
var pairs = createAssignmentPairs(recurmax, stmtDepth, canThrow);
return appendExport(stmtDepth) + "var " + pairs.names.map(function(name, index) {
return index in pairs.values ? name + " = " + pairs.values[index] : name;
@@ -1966,7 +1985,7 @@ if (require.main !== module) {
}
function run_code(code, toplevel) {
return sandbox.run_code(sandbox.strip_exports(code), toplevel);
return sandbox.run_code(sandbox.patch_module_statements(code), toplevel);
}
function writeln(stream, msg) {
@@ -2384,8 +2403,8 @@ for (var round = 1; round <= num_iterations; round++) {
if (!ok && /\bclass\b/.test(original_code)) {
var original_strict = run_code('"use strict";' + original_code, toplevel);
var uglify_strict = run_code('"use strict";' + uglify_code, toplevel);
if (typeof original_strict != "string" && /strict/.test(original_strict.message)) {
ok = typeof uglify_strict != "string" && /strict/.test(uglify_strict.message);
if (typeof original_strict != "string") {
ok = typeof uglify_strict != "string";
} else {
ok = sandbox.same_stdout(original_strict, uglify_strict);
}