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var expect = require("expect.js"),
vm = require("vm"),
getImportGlobalsSrc = require("../lib/getImportGlobalsSrc.js");
describe("getImportGlobalsSrc", function () {
it("should declare all globals with a var", function () {
var context = {
global: global
},
expectedGlobals,
src,
actualGlobals;
// Temporarily set module-internal variables on the global scope to check if getImportGlobalsSrc()
// ignores them properly
global.module = module;
global.exports = exports;
global.require = require;
// Also make sure it ignores invalid variable names
global['a-b'] = true;
src = getImportGlobalsSrc();
delete global.module;
delete global.exports;
delete global.require;
delete global['__core-js_shared__'];
delete global['a-b'];
expectedGlobals = Object.keys(global);
vm.runInNewContext(src, context);
actualGlobals = Object.keys(context);
actualGlobals.sort();
expectedGlobals.sort();
expect(actualGlobals).to.eql(expectedGlobals);
expect(actualGlobals.length).to.be.above(1);
});
it("should ignore the given variables", function () {
var context = {
global: global
},
ignore = ["console", "setTimeout"],
src,
actualGlobals,
expectedGlobals = Object.keys(global);
// getImportGlobalsSrc modifies the ignore array, so let's create a copy
src = getImportGlobalsSrc(ignore.slice(0));
expectedGlobals = expectedGlobals.filter(function filterIgnoredVars(value) {
return ignore.indexOf(value) === -1;
});
vm.runInNewContext(src, context);
actualGlobals = Object.keys(context);
actualGlobals.sort();
expectedGlobals.sort();
expect(actualGlobals).to.eql(expectedGlobals);
expect(actualGlobals.length).to.be.above(1);
});
});
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