hybridgroup.gobot/drivers/gpio/tm1638_driver_test.go

93 lines
2.7 KiB
Go

package gpio
import (
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"gobot.io/x/gobot/v2"
"gobot.io/x/gobot/v2/drivers/aio"
)
var _ gobot.Driver = (*TM1638Driver)(nil)
func initTestTM1638Driver() *TM1638Driver {
d, _ := initTestTM1638DriverWithStubbedAdaptor()
return d
}
func initTestTM1638DriverWithStubbedAdaptor() (*TM1638Driver, *gpioTestAdaptor) {
a := newGpioTestAdaptor()
return NewTM1638Driver(a, "1", "2", "3"), a
}
func TestNewTM1638Driver(t *testing.T) {
// arrange
a := newGpioTestAdaptor()
// act
d := NewTM1638Driver(a, "10", "20", "30")
// assert
assert.IsType(t, &TM1638Driver{}, d)
// assert: gpio.driver attributes
require.NotNil(t, d.driver)
assert.True(t, strings.HasPrefix(d.driverCfg.name, "TM1638"))
assert.Equal(t, a, d.connection)
assert.NotNil(t, d.afterStart)
assert.NotNil(t, d.beforeHalt)
assert.NotNil(t, d.Commander)
assert.NotNil(t, d.mutex)
// assert: driver specific attributes
assert.NotNil(t, d.pinClock)
assert.NotNil(t, d.pinData)
assert.NotNil(t, d.pinStrobe)
assert.NotNil(t, d.fonts)
}
func TestNewTM1638Driver_options(t *testing.T) {
// This is a general test, that options are applied in constructor by using the common WithName() option, least one
// option of this driver and one of another driver (which should lead to panic). Further tests for options can also
// be done by call of "WithOption(val).apply(cfg)".
// arrange
const (
myName = "show rotation count"
)
panicFunc := func() {
NewTM1638Driver(newGpioTestAdaptor(), "1", "2", "3", WithName("crazy"),
aio.WithActuatorScaler(func(float64) int { return 0 }))
}
// act
d := NewTM1638Driver(newGpioTestAdaptor(), "1", "2", "3", WithName(myName))
// assert
assert.Equal(t, myName, d.Name())
assert.PanicsWithValue(t, "'scaler option for analog actuators' can not be applied on 'crazy'", panicFunc)
}
func TestTM1638Start(t *testing.T) {
// arrange
d := initTestTM1638Driver()
// act & assert: tests also initialize()
require.NoError(t, d.Start())
}
func TestTM1638FromStringToByteArray(t *testing.T) {
d := initTestTM1638Driver()
data := d.fromStringToByteArray("Hello World")
assert.Equal(t, []byte{0x76, 0x7B, 0x30, 0x30, 0x5C, 0x00, 0x1D, 0x5C, 0x50, 0x30, 0x5E}, data)
}
func TestTM1638AddFonts(t *testing.T) {
d := initTestTM1638Driver()
d.AddFonts(map[string]byte{"µ": 0x1C, "ß": 0x7F})
data := d.fromStringToByteArray("µß")
assert.Equal(t, []byte{0x1C, 0x7F}, data)
}
func TestTM1638ClearFonts(t *testing.T) {
d := initTestTM1638Driver()
d.ClearFonts()
data := d.fromStringToByteArray("Hello World")
assert.Equal(t, []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, data)
}