initial

node_modules/onoff/test/many-interrupts.js

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+"use strict";
+
+const assert = require('assert');
+const Gpio = require('../onoff').Gpio;
+const input = new Gpio(7, 'in', 'both');
+const output = new Gpio(8, 'out');
+
+let toggleCount = 0;
+let falling = 0;
+let rising = 0;
+
+function toggleOutput() {
+  output.writeSync(output.readSync() ^ 1);
+  toggleCount += 1;
+}
+
+function interrupt(err, value) {
+  if (err) {
+    throw err;
+  }
+
+  if (value === 1) {
+    rising += 1;
+  } else if (value === 0) {
+    falling += 1;
+  }
+
+  assert(output.readSync() === value);
+
+  if (rising + falling < 2000) {
+    toggleOutput();
+  } else {
+    assert(toggleCount === 2000);
+    assert(rising === falling);
+    assert(rising + falling === toggleCount);
+
+    input.unexport();
+    output.writeSync(0);
+    output.unexport();
+
+    console.log('ok - ' + __filename);
+  }
+}
+
+input.watch(interrupt);
+toggleOutput();
+