testing/web-platform/tests/serial/serialPort_setSignals.https.any.js

   1 // META: script=/resources/test-only-api.js
   2 // META: script=/serial/resources/common.js
   3 // META: script=resources/automation.js
   4
   5 serial_test(async (t, fake) => {
   6   const {port, fakePort} = await getFakeSerialPort(fake);
   7   await promise_rejects_dom(t, 'InvalidStateError', port.setSignals({}));
   8 }, 'setSignals() rejects if the port is not open');
   9
  10 serial_test(async (t, fake) => {
  11   const {port, fakePort} = await getFakeSerialPort(fake);
  12   await port.open({baudRate: 9600});
  13
  14   let expectedSignals = {
  15     dataTerminalReady: true,
  16     requestToSend: false,
  17     break: false
  18   };
  19   assert_object_equals(fakePort.outputSignals, expectedSignals, 'initial');
  20
  21   await promise_rejects_js(t, TypeError, port.setSignals());
  22   assert_object_equals(fakePort.outputSignals, expectedSignals, 'no-op');
  23
  24   await promise_rejects_js(t, TypeError, port.setSignals({}));
  25   assert_object_equals(fakePort.outputSignals, expectedSignals, 'no-op');
  26
  27   await port.setSignals({dataTerminalReady: false});
  28   expectedSignals.dataTerminalReady = false;
  29   assert_object_equals(fakePort.outputSignals, expectedSignals, 'clear DTR');
  30
  31   await port.setSignals({requestToSend: true});
  32   expectedSignals.requestToSend = true;
  33   assert_object_equals(fakePort.outputSignals, expectedSignals, 'set RTS');
  34
  35   await port.setSignals({break: true});
  36   expectedSignals.break = true;
  37   assert_object_equals(fakePort.outputSignals, expectedSignals, 'set BRK');
  38
  39   await port.setSignals(
  40       {dataTerminalReady: true, requestToSend: false, break: false});
  41   expectedSignals.dataTerminalReady = true;
  42   expectedSignals.requestToSend = false;
  43   expectedSignals.break = false;
  44   assert_object_equals(fakePort.outputSignals, expectedSignals, 'invert');
  45 }, 'setSignals() modifies the state of the port');
  46
  47 serial_test(async (t, fake) => {
  48   const {port, fakePort} = await getFakeSerialPort(fake);
  49   await port.open({baudRate: 9600});
  50
  51   fakePort.simulateOutputSignalFailure(true);
  52   await promise_rejects_dom(t, 'NetworkError', port.setSignals({break: true}));
  53
  54   fakePort.simulateOutputSignalFailure(false);
  55   await port.setSignals({break: true});
  56   assert_true(fakePort.outputSignals.break);
  57
  58   await port.close();
  59 }, 'setSignals() rejects on failure');