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hybridgroup.gobot/platforms/beaglebone/beaglebone_adaptor_test.go
2014-11-03 19:41:34 -08:00

63 lines
1.5 KiB
Go

package beaglebone
import (
"io"
"os"
"testing"
"github.com/hybridgroup/gobot"
"github.com/hybridgroup/gobot/sysfs"
)
func initTestBeagleboneAdaptor() *BeagleboneAdaptor {
i2cLocation = os.DevNull
sysfs.WriteFile = func(path string, data []byte) (i int, err error) {
return
}
a := NewBeagleboneAdaptor("myAdaptor")
a.connect = func() {}
a.Connect()
a.DigitalWrite("P9_12", 1)
a.i2cDevice = new(gobot.NullReadWriteCloser)
return a
}
func TestBeagleboneAdaptorFinalize(t *testing.T) {
gobot.Assert(t, initTestBeagleboneAdaptor().Finalize(), true)
}
func TestBeagleboneAdaptorDigitalIO(t *testing.T) {
a := initTestBeagleboneAdaptor()
lastWritePath := ""
lastReadPath := ""
lastWriteData := []byte{}
sysfs.WriteFile = func(path string, data []byte) (i int, err error) {
lastWritePath = path
lastWriteData = data
return
}
sysfs.ReadFile = func(path string) (b []byte, err error) {
lastReadPath = path
return []byte("1"), nil
}
a.DigitalWrite("P9_12", 1)
gobot.Assert(t, lastWritePath, "/sys/class/gpio/gpio60/value")
gobot.Assert(t, lastWriteData, []byte{49})
i := a.DigitalRead("P8_31")
gobot.Assert(t, lastReadPath, "/sys/class/gpio/gpio10/value")
gobot.Assert(t, i, 1)
}
func TestBeagleboneAdaptorI2c(t *testing.T) {
a := initTestBeagleboneAdaptor()
a.I2cStart(0xff)
var _ io.ReadWriteCloser = a.i2cDevice
a.i2cDevice = new(gobot.NullReadWriteCloser)
a.I2cWrite([]byte{0x00, 0x01})
gobot.Assert(t, a.I2cRead(2), make([]byte, 2))
}