Dia antes primera install

node_modules/i2c-bus/integration-test/async-promise-performance.js

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+'use strict';
+
+const i2c = require('../');
+
+const ITERATIONS = 5000;
+
+const DS1621_ADDR = 0x48;
+const CMD_ACCESS_TL = 0xa2;
+
+let time;
+
+const performanceTest = (i2c1, testRuns) => {
+  i2c1.readWord(DS1621_ADDR, CMD_ACCESS_TL).then(word => {
+    testRuns -= 1;
+    if (testRuns === 0) {
+      time = process.hrtime(time);
+      const readsPerSec = Math.floor(ITERATIONS / (time[0] + time[1] / 1E9));
+      i2c1.close().then(_ =>
+        console.log('ok - async-promise-performance - ' + readsPerSec + ' reads per second')
+      );
+    } else {
+      performanceTest(i2c1, testRuns);
+    }
+  });
+};
+
+i2c.openPromisified(1).then(i2c1 => {
+  time = process.hrtime();
+  performanceTest(i2c1, ITERATIONS);
+});
+