hybridgroup.gobot/drivers/aio/grove_drivers_test.go

121 lines
2.6 KiB
Go

package aio
import (
"errors"
"reflect"
"sync/atomic"
"testing"
"time"
"gobot.io/x/gobot"
"gobot.io/x/gobot/gobottest"
)
type DriverAndPinner interface {
gobot.Driver
gobot.Pinner
}
type DriverAndEventer interface {
gobot.Driver
gobot.Eventer
}
func TestDriverDefaults(t *testing.T) {
testAdaptor := newAioTestAdaptor()
pin := "456"
drivers := []DriverAndPinner{
NewGroveSoundSensorDriver(testAdaptor, pin),
NewGroveLightSensorDriver(testAdaptor, pin),
NewGrovePiezoVibrationSensorDriver(testAdaptor, pin),
NewGroveRotaryDriver(testAdaptor, pin),
}
for _, driver := range drivers {
gobottest.Assert(t, driver.Connection(), testAdaptor)
gobottest.Assert(t, driver.Pin(), pin)
}
}
func TestAnalogDriverHalt(t *testing.T) {
testAdaptor := newAioTestAdaptor()
pin := "456"
drivers := []DriverAndEventer{
NewGroveSoundSensorDriver(testAdaptor, pin),
NewGroveLightSensorDriver(testAdaptor, pin),
NewGrovePiezoVibrationSensorDriver(testAdaptor, pin),
NewGroveRotaryDriver(testAdaptor, pin),
}
for _, driver := range drivers {
var callCount int32
testAdaptor.TestAdaptorAnalogRead(func() (int, error) {
atomic.AddInt32(&callCount, 1)
return 42, nil
})
// Start the driver and allow for multiple digital reads
driver.Start()
time.Sleep(20 * time.Millisecond)
driver.Halt()
lastCallCount := atomic.LoadInt32(&callCount)
// If driver was not halted, digital reads would still continue
time.Sleep(20 * time.Millisecond)
if atomic.LoadInt32(&callCount) != lastCallCount {
t.Errorf("AnalogRead was called after driver was halted")
}
}
}
func TestDriverPublishesError(t *testing.T) {
testAdaptor := newAioTestAdaptor()
pin := "456"
drivers := []DriverAndEventer{
NewGroveSoundSensorDriver(testAdaptor, pin),
NewGroveLightSensorDriver(testAdaptor, pin),
NewGrovePiezoVibrationSensorDriver(testAdaptor, pin),
NewGroveRotaryDriver(testAdaptor, pin),
}
for _, driver := range drivers {
sem := make(chan struct{}, 1)
// send error
returnErr := func() (val int, err error) {
err = errors.New("read error")
return
}
testAdaptor.TestAdaptorAnalogRead(returnErr)
gobottest.Assert(t, driver.Start(), nil)
// expect error
driver.Once(driver.Event(Error), func(data interface{}) {
gobottest.Assert(t, data.(error).Error(), "read error")
close(sem)
})
select {
case <-sem:
case <-time.After(time.Second):
t.Errorf("%s Event \"Error\" was not published", getType(driver))
}
// Cleanup
driver.Halt()
}
}
func getType(driver interface{}) string {
d := reflect.TypeOf(driver)
if d.Kind() == reflect.Ptr {
return d.Elem().Name()
}
return d.Name()
}