118 lines
2.6 KiB
Go
118 lines
2.6 KiB
Go
package raspi
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import (
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"testing"
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"github.com/hybridgroup/gobot"
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"github.com/hybridgroup/gobot/sysfs"
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)
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type NullReadWriteCloser struct{}
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func (NullReadWriteCloser) Write(p []byte) (int, error) {
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return len(p), nil
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}
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func (NullReadWriteCloser) Read(b []byte) (int, error) {
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return len(b), nil
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}
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func (NullReadWriteCloser) Close() error {
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return nil
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}
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func initTestRaspiAdaptor() *RaspiAdaptor {
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readFile = func() ([]byte, error) {
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return []byte(`
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Hardware : BCM2708
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Revision : 0010
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Serial : 000000003bc748ea
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`), nil
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}
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a := NewRaspiAdaptor("myAdaptor")
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a.Connect()
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return a
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}
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func TestRaspiAdaptor(t *testing.T) {
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readFile = func() ([]byte, error) {
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return []byte(`
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Hardware : BCM2708
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Revision : 0010
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Serial : 000000003bc748ea
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`), nil
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}
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a := NewRaspiAdaptor("myAdaptor")
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gobot.Assert(t, a.Name(), "myAdaptor")
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gobot.Assert(t, a.i2cLocation, "/dev/i2c-1")
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gobot.Assert(t, a.revision, "3")
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readFile = func() ([]byte, error) {
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return []byte(`
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Hardware : BCM2708
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Revision : 000D
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Serial : 000000003bc748ea
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`), nil
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}
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a = NewRaspiAdaptor("myAdaptor")
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gobot.Assert(t, a.i2cLocation, "/dev/i2c-1")
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gobot.Assert(t, a.revision, "2")
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readFile = func() ([]byte, error) {
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return []byte(`
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Hardware : BCM2708
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Revision : 0002
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Serial : 000000003bc748ea
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`), nil
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}
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a = NewRaspiAdaptor("myAdaptor")
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gobot.Assert(t, a.i2cLocation, "/dev/i2c-0")
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gobot.Assert(t, a.revision, "1")
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}
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func TestRaspiAdaptorFinalize(t *testing.T) {
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a := initTestRaspiAdaptor()
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fs := sysfs.NewMockFilesystem([]string{
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"/sys/class/gpio/export",
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"/sys/class/gpio/unexport",
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})
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sysfs.SetFilesystem(fs)
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a.DigitalWrite("3", 1)
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a.i2cDevice = new(NullReadWriteCloser)
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gobot.Assert(t, len(a.Finalize()), 0)
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}
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func TestRaspiAdaptorDigitalIO(t *testing.T) {
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a := initTestRaspiAdaptor()
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fs := sysfs.NewMockFilesystem([]string{
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"/sys/class/gpio/export",
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"/sys/class/gpio/unexport",
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"/sys/class/gpio/gpio4/value",
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"/sys/class/gpio/gpio4/direction",
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"/sys/class/gpio/gpio27/value",
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"/sys/class/gpio/gpio27/direction",
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})
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sysfs.SetFilesystem(fs)
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a.DigitalWrite("7", 1)
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gobot.Assert(t, fs.Files["/sys/class/gpio/gpio4/value"].Contents, "1")
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a.DigitalWrite("13", 1)
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i, _ := a.DigitalRead("13")
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gobot.Assert(t, i, 1)
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}
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func TestRaspiAdaptorI2c(t *testing.T) {
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a := initTestRaspiAdaptor()
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fs := sysfs.NewMockFilesystem([]string{
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"/dev/i2c-1",
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})
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sysfs.SetFilesystem(fs)
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sysfs.SetSyscall(&sysfs.MockSyscall{})
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a.I2cStart(0xff)
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a.I2cWrite([]byte{0x00, 0x01})
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data, _ := a.I2cRead(2)
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gobot.Assert(t, data, []byte{0x00, 0x01})
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}
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