@Test
public void readWithTimeoutSerialPortTest() throws IOException, InterruptedException {
int streamDelayTooLong = 200;
int streamDelayOk = 5;
int timeout = 100;
int cpuDelay = 10;
SerialCommunicationsPort serial = org.mockito.Mockito.mock(SerialCommunicationsPort.class);
byte[] bytes = "j".getBytes();
byte[] bytes2 = "k".getBytes();
Mockito.when(serial.read())
.thenAnswer(new SerialPortReadDelayedAnswer(streamDelayTooLong, null))
.thenAnswer(new SerialPortReadDelayedAnswer(streamDelayTooLong, bytes))
.thenAnswer(new SerialPortReadDelayedAnswer(streamDelayTooLong, null))
.thenAnswer(new SerialPortReadDelayedAnswer(streamDelayOk, bytes2))
.thenAnswer(new SerialPortReadDelayedAnswer(streamDelayOk, null));
String data = IOUtilities.readWithTimeout(serial, timeout, cpuDelay);
Assert.assertEquals("", data);
data = IOUtilities.readWithTimeout(serial, timeout, cpuDelay);
Assert.assertEquals("j", data);
data = IOUtilities.readWithTimeout(serial, timeout, cpuDelay);
Assert.assertEquals("k", data);
}
@Test
public void serialPortSplitReadLineTest() throws IOException {
int streamDelayTooLong = 100;
int timeout = 50;
int cpuDelay = 10;
StringBuilder builder = new StringBuilder();
SerialCommunicationsPort serial = org.mockito.Mockito.mock(SerialCommunicationsPort.class);
Printer printer = org.mockito.Mockito.mock(Printer.class);
byte[] bytes = "o".getBytes();
byte[] bytes2 = "k\nwo".getBytes();
byte[] bytes3 = "rl".getBytes();
byte[] bytes4 = "d\n".getBytes();
Mockito.when(serial.read())
.thenAnswer(new SerialPortReadDelayedAnswer(streamDelayTooLong, bytes))
.thenAnswer(new SerialPortReadDelayedAnswer(streamDelayTooLong, bytes2))
.thenAnswer(new SerialPortReadDelayedAnswer(streamDelayTooLong, bytes3))
.thenAnswer(new SerialPortReadDelayedAnswer(streamDelayTooLong, bytes4))
.thenThrow(
new IllegalArgumentException(
"The read method should never have been called this time."));
// This tests that an inputstream read wasn't able to complete a full line read in the given
// timeout period.
ParseState state = IOUtilities.readLine(printer, serial, builder, 0, timeout, cpuDelay);
Assert.assertEquals(1, state.parseLocation);
Assert.assertEquals(null, state.currentLine);
// The next read should be able to read the the ok
state = IOUtilities.readLine(printer, serial, builder, state.parseLocation, timeout, cpuDelay);
Assert.assertEquals(0, state.parseLocation);
Assert.assertEquals("ok\n", state.currentLine);
// Again, this read won't be able to read the full amount of data in the timeout period.
state = IOUtilities.readLine(printer, serial, builder, state.parseLocation, timeout, cpuDelay);
Assert.assertEquals(4, state.parseLocation);
Assert.assertEquals(null, state.currentLine);
// There is nothing left on the stream to read so it continues to parse the rest of the
// StringBuilder
state = IOUtilities.readLine(printer, serial, builder, state.parseLocation, timeout, cpuDelay);
Assert.assertEquals(0, state.parseLocation);
Assert.assertEquals("world\n", state.currentLine);
}
