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'use strict';
var browserify = require('browserify');
var looseEnvify = require('../');
var stream = require('stream');
var test = require('tap').test;
test('purge', function(t) {
t.plan(3);
var source = stream.PassThrough();
var b = browserify({
entries: source
});
b.transform(looseEnvify, {_:'purge'});
b.bundle(function(err, src) {
t.notOk(err);
t.notMatch(String(src), /\bprocess\.env\.NON_EXISTING_VAR\b/);
t.match(String(src), /module\.exports = undefined;/);
});
source.write('module.exports = process.env.NON_EXISTING_VAR;');
source.end();
});
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