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node_modules/native-duplexpair/test/index.js

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+'use strict';
+
+const DuplexPair = require('../');
+const assert = require('assert');
+
+describe('DuplexPair', function() {
+  it('passed data through', function() {
+    const pair = new DuplexPair({ encoding: 'utf8' });
+    pair.socket1.write('Hello');
+    assert.strictEqual(pair.socket1.read(), null);
+    assert.strictEqual(pair.socket2.read(), 'Hello');
+    pair.socket2.write('world');
+    assert.strictEqual(pair.socket1.read(), 'world');
+    assert.strictEqual(pair.socket2.read(), null);
+    pair.socket1.end();
+    assert.strictEqual(pair.socket1.read(), null);
+    assert.strictEqual(pair.socket2.read(), null);
+    pair.socket2.end();
+    assert.strictEqual(pair.socket1.read(), null);
+  });
+});