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1'use strict';
2require('../common');
3const assert = require('assert');
4
5process.env.foo = 'foo';
6assert.strictEqual(process.env.foo, 'foo');
7process.env.foo = undefined;
8assert.strictEqual(process.env.foo, 'undefined');
9
10process.env.foo = 'foo';
11assert.strictEqual(process.env.foo, 'foo');
12delete process.env.foo;
13assert.strictEqual(process.env.foo, undefined);
14