38 lines
781 B
JavaScript

let assert = require("assert");
let babel = require("babel-core");
let vm = require("vm");
test("Re-export doesn't overwrite __esModule flag", function () {
let code = "export * from \"./dep\";";
let depStub = {
__esModule: false,
};
let context = {
module: {
exports: {}
},
require: function (id) {
if (id === "./dep") return depStub;
return require(id);
},
};
context.exports = context.module.exports;
code = babel.transform(code, {
"plugins": [
[require("../"), {loose: true}],
],
"ast": false,
}).code;
vm.runInNewContext(code, context);
// exports.__esModule shouldn't be overwritten.
assert.equal(
context.exports.__esModule,
true,
"Expected exports.__esModule === true"
);
});