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sysfs: increase test coverage

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Signed-off-by: deadprogram <ron@hybridgroup.com>
This commit is contained in:
deadprogram 2017-04-25 12:41:57 +02:00
parent 39e7ec000d
commit eefe547d25
1 changed files with 44 additions and 0 deletions
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44
sysfs/pwm_pin_test.go
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@ -47,8 +47,12 @@ func TestPwmPin(t *testing.T) {
gobottest.Assert(t, pin.InvertPolarity(true), nil)
gobottest.Assert(t, fs.Files["/sys/class/pwm/pwmchip0/pwm10/polarity"].Contents, "inverted")
pol, _ := pin.Polarity()
gobottest.Assert(t, pol, "inverted")
gobottest.Assert(t, pin.InvertPolarity(false), nil)
gobottest.Assert(t, fs.Files["/sys/class/pwm/pwmchip0/pwm10/polarity"].Contents, "normal")
pol, _ = pin.Polarity()
gobottest.Assert(t, pol, "normal")
gobottest.Refute(t, fs.Files["/sys/class/pwm/pwmchip0/pwm10/duty_cycle"].Contents, "1")
err = pin.SetDutyCycle(100)
@ -115,3 +119,43 @@ func TestPwmPinPeriodError(t *testing.T) {
_, err := pin.Period()
gobottest.Refute(t, err, nil)
}
func TestPwmPinPolarityError(t *testing.T) {
fs := NewMockFilesystem([]string{
"/sys/class/pwm/pwmchip0/export",
"/sys/class/pwm/pwmchip0/unexport",
"/sys/class/pwm/pwmchip0/pwm10/enable",
"/sys/class/pwm/pwmchip0/pwm10/period",
"/sys/class/pwm/pwmchip0/pwm10/duty_cycle",
})
SetFilesystem(fs)
pin := NewPWMPin(10)
pin.read = func(string) ([]byte, error) {
return nil, &os.PathError{Err: syscall.EBUSY}
}
_, err := pin.Polarity()
gobottest.Refute(t, err, nil)
}
func TestPwmPinDutyCycleError(t *testing.T) {
fs := NewMockFilesystem([]string{
"/sys/class/pwm/pwmchip0/export",
"/sys/class/pwm/pwmchip0/unexport",
"/sys/class/pwm/pwmchip0/pwm10/enable",
"/sys/class/pwm/pwmchip0/pwm10/period",
"/sys/class/pwm/pwmchip0/pwm10/duty_cycle",
})
SetFilesystem(fs)
pin := NewPWMPin(10)
pin.read = func(string) ([]byte, error) {
return nil, &os.PathError{Err: syscall.EBUSY}
}
_, err := pin.DutyCycle()
gobottest.Refute(t, err, nil)
}