public void TestPinReadProps()
{
var fileIo = new Mock <IFileIo>();
fileIo.Setup(x => x.ReadAllText("/sys/class/pwm/pwmchip0/pwm43/polarity")).Returns("normal");
fileIo.Setup(x => x.ReadAllText("/sys/class/pwm/pwmchip0/pwm43/duty_cycle")).Returns("39");
fileIo.Setup(x => x.ReadAllText("/sys/class/pwm/pwmchip0/pwm43/period")).Returns("53");
fileIo.Setup(x => x.ReadAllText("/sys/class/pwm/pwmchip0/pwm43/enable")).Returns("1");
var pinMapper = new Mock <IPinMapper>();
pinMapper.Setup(x => x.MapPinToSysfs("20")).Returns(43);
pinMapper.Setup(x => x.MapPinToSysfs("23")).Returns(44);
using (var service = new PinController(fileIo.Object, pinMapper.Object))
{
var pin1 = service.GetPwmPin("20");
var pin2 = service.GetPwmPin("23");
Assert.Equal(pin1.Polarity, PwmPolarity.Normal);
Assert.Equal(pin1.Polarity, PwmPolarity.Normal);
Assert.Equal(pin1.DutyCycle, 39);
Assert.Equal(pin1.Period, 53);
Assert.True(pin1.Enabled);
Assert.Equal(pin2.Polarity, PwmPolarity.Normal);
Assert.Equal(pin2.DutyCycle, 0);
Assert.Equal(pin2.Period, 0);
Assert.False(pin2.Enabled);
}
}
public void TestPinProps()
{
var fileIo = new Mock <IFileIo>();
var pinMapper = new Mock <IPinMapper>();
pinMapper.Setup(x => x.MapPinToSysfs("20")).Returns(43);
pinMapper.Setup(x => x.MapPinToSysfs("23")).Returns(44);
using (var service = new PinController(fileIo.Object, pinMapper.Object))
{
var pin1 = service.GetPwmPin("20");
var pin2 = service.GetPwmPin("23");
pin1.DutyCycle = 33;
pin1.Period = 55;
pin1.Polarity = PwmPolarity.Inversed;
pin1.Enabled = true;
pin1.Enabled = false;
pin2.DutyCycle = 36;
pin2.Period = 56;
pin2.Polarity = PwmPolarity.Normal;
pin2.Enabled = true;
pin2.Enabled = false;
//Test caching pwm
pin1 = service.GetPwmPin("20");
pin1.DutyCycle = 393;
}
pinMapper.Verify(x => x.MapPinToSysfs("20"), Times.Once);
pinMapper.Verify(x => x.MapPinToSysfs("23"), Times.Once);
fileIo.Verify(x => x.WriteAllText("/sys/class/pwm/pwmchip0/export", "43"), Times.Once);
fileIo.Verify(x => x.WriteAllText("/sys/class/pwm/pwmchip0/export", "44"), Times.Once);
fileIo.Verify(x => x.WriteAllText("/sys/class/pwm/pwmchip0/pwm43/polarity", "inversed"), Times.Once);
fileIo.Verify(x => x.WriteAllText("/sys/class/pwm/pwmchip0/pwm44/polarity", "normal"), Times.Once);
fileIo.Verify(x => x.WriteAllText("/sys/class/pwm/pwmchip0/pwm43/duty_cycle", "33"), Times.Once);
fileIo.Verify(x => x.WriteAllText("/sys/class/pwm/pwmchip0/pwm43/duty_cycle", "393"), Times.Once);
fileIo.Verify(x => x.WriteAllText("/sys/class/pwm/pwmchip0/pwm44/duty_cycle", "36"), Times.Once);
fileIo.Verify(x => x.WriteAllText("/sys/class/pwm/pwmchip0/pwm43/period", "55"), Times.Once);
fileIo.Verify(x => x.WriteAllText("/sys/class/pwm/pwmchip0/pwm44/period", "56"), Times.Once);
fileIo.Verify(x => x.WriteAllText("/sys/class/pwm/pwmchip0/pwm43/enable", "1"), Times.Once);
fileIo.Verify(x => x.WriteAllText("/sys/class/pwm/pwmchip0/pwm43/enable", "0"), Times.Exactly(2));
fileIo.Verify(x => x.WriteAllText("/sys/class/pwm/pwmchip0/pwm44/enable", "1"), Times.Once);
fileIo.Verify(x => x.WriteAllText("/sys/class/pwm/pwmchip0/pwm44/enable", "0"), Times.Exactly(2));
fileIo.Verify(x => x.ReadAllText(It.IsAny <string>()), Times.Never);
}
public void TestLazyExport()
{
var fileIo = new Mock <IFileIo>();
var pinMapper = new Mock <IPinMapper>();
using (var service = new PinController(fileIo.Object, pinMapper.Object))
{
var pin = service.GetPwmPin("20");
Assert.NotNull(pin);
}
pinMapper.Verify(x => x.MapPinToSysfs("20"), Times.Once);
fileIo.Verify(x => x.WriteAllText(It.IsAny <string>(), It.IsAny <string>()), Times.Never);
fileIo.Verify(x => x.ReadAllText(It.IsAny <string>()), Times.Never);
}
