hybridgroup.gobot/drivers/serial/serial_driver_test.go

86 lines
2.0 KiB
Go

package serial
import (
"fmt"
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"gobot.io/x/gobot/v2"
"gobot.io/x/gobot/v2/drivers/serial/testutil"
)
var _ gobot.Driver = (*Driver)(nil)
func initTestDriver() *Driver {
a := testutil.NewSerialTestAdaptor()
d := NewDriver(a, "SERIAL_BASIC", nil, nil)
return d
}
func TestNewDriver(t *testing.T) {
// arrange
const name = "mybot"
a := testutil.NewSerialTestAdaptor()
// act
d := NewDriver(a, name, nil, nil)
// assert
assert.IsType(t, &Driver{}, d)
assert.NotNil(t, d.driverCfg)
assert.True(t, strings.HasPrefix(d.Name(), name))
assert.Equal(t, a, d.Connection())
require.NoError(t, d.afterStart())
require.NoError(t, d.beforeHalt())
assert.NotNil(t, d.Commander)
assert.NotNil(t, d.mutex)
}
func Test_newDriverWithName(t *testing.T) {
// This is a general test, that options are applied in constructor by using the common WithName() option. Further
// tests for options can also be done by call of "WithOption(val).apply(cfg)".
// arrange
const (
name = "mybot"
newName = "overwrite mybot"
)
a := testutil.NewSerialTestAdaptor()
// act
d := NewDriver(a, name, nil, nil, WithName(newName))
// assert
assert.Equal(t, newName, d.Name())
}
func Test_applyWithName(t *testing.T) {
// arrange
const name = "mybot"
cfg := configuration{name: "oldname"}
// act
WithName(name).apply(&cfg)
// assert
assert.Equal(t, name, cfg.name)
}
func TestStart(t *testing.T) {
// arrange
d := initTestDriver()
// act, assert
require.NoError(t, d.Start())
// arrange after start function
d.afterStart = func() error { return fmt.Errorf("after start error") }
// act, assert
require.EqualError(t, d.Start(), "after start error")
}
func TestHalt(t *testing.T) {
// arrange
d := initTestDriver()
// act, assert
require.NoError(t, d.Halt())
// arrange after start function
d.beforeHalt = func() error { return fmt.Errorf("before halt error") }
// act, assert
require.EqualError(t, d.Halt(), "before halt error")
}