149 lines
3.5 KiB
Go
149 lines
3.5 KiB
Go
package i2c
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import (
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"errors"
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"strings"
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"testing"
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"bytes"
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"gobot.io/x/gobot"
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"gobot.io/x/gobot/gobottest"
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)
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var _ gobot.Driver = (*BH1750Driver)(nil)
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// --------- HELPERS
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func initTestBH1750Driver() (driver *BH1750Driver) {
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driver, _ = initTestBH1750DriverWithStubbedAdaptor()
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return
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}
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func initTestBH1750DriverWithStubbedAdaptor() (*BH1750Driver, *i2cTestAdaptor) {
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adaptor := newI2cTestAdaptor()
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return NewBH1750Driver(adaptor), adaptor
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}
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// --------- TESTS
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func TestNewBH1750Driver(t *testing.T) {
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// Does it return a pointer to an instance of BH1750Driver?
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var mma interface{} = NewBH1750Driver(newI2cTestAdaptor())
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_, ok := mma.(*BH1750Driver)
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if !ok {
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t.Errorf("NewBH1750Driver() should have returned a *BH1750Driver")
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}
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}
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// Methods
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func TestBH1750Driver(t *testing.T) {
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mma := initTestBH1750Driver()
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gobottest.Refute(t, mma.Connection(), nil)
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gobottest.Assert(t, strings.HasPrefix(mma.Name(), "BH1750"), true)
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}
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func TestBH1750DriverSetName(t *testing.T) {
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d := initTestBH1750Driver()
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d.SetName("TESTME")
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gobottest.Assert(t, d.Name(), "TESTME")
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}
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func TestBH1750DriverOptions(t *testing.T) {
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d := NewBH1750Driver(newI2cTestAdaptor(), WithBus(2))
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gobottest.Assert(t, d.GetBusOrDefault(1), 2)
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}
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func TestBH1750DriverStart(t *testing.T) {
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d := initTestBH1750Driver()
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gobottest.Assert(t, d.Start(), nil)
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}
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func TestBH1750StartConnectError(t *testing.T) {
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d, adaptor := initTestBH1750DriverWithStubbedAdaptor()
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adaptor.Testi2cConnectErr(true)
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gobottest.Assert(t, d.Start(), errors.New("Invalid i2c connection"))
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}
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func TestBH1750DriverStartWriteError(t *testing.T) {
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mma, adaptor := initTestBH1750DriverWithStubbedAdaptor()
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adaptor.i2cWriteImpl = func([]byte) (int, error) {
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return 0, errors.New("write error")
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}
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gobottest.Assert(t, mma.Start(), errors.New("write error"))
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}
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func TestBH1750DriverHalt(t *testing.T) {
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d := initTestBH1750Driver()
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gobottest.Assert(t, d.Halt(), nil)
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}
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func TestBH1750DriverNullLux(t *testing.T) {
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d, _ := initTestBH1750DriverWithStubbedAdaptor()
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d.Start()
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lux, _ := d.Lux()
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gobottest.Assert(t, lux, 0)
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}
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func TestBH1750DriverLux(t *testing.T) {
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d, adaptor := initTestBH1750DriverWithStubbedAdaptor()
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d.Start()
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adaptor.i2cReadImpl = func(b []byte) (int, error) {
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buf := new(bytes.Buffer)
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buf.Write([]byte{0x05, 0xb0})
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copy(b, buf.Bytes())
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return buf.Len(), nil
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}
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lux, _ := d.Lux()
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gobottest.Assert(t, lux, 1213)
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}
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func TestBH1750DriverNullRawSensorData(t *testing.T) {
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d, _ := initTestBH1750DriverWithStubbedAdaptor()
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d.Start()
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level, _ := d.RawSensorData()
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gobottest.Assert(t, level, 0)
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}
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func TestBH1750DriverRawSensorData(t *testing.T) {
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d, adaptor := initTestBH1750DriverWithStubbedAdaptor()
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d.Start()
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adaptor.i2cReadImpl = func(b []byte) (int, error) {
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buf := new(bytes.Buffer)
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buf.Write([]byte{0x05, 0xb0})
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copy(b, buf.Bytes())
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return buf.Len(), nil
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}
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level, _ := d.RawSensorData()
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gobottest.Assert(t, level, 1456)
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}
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func TestBH1750DriverLuxError(t *testing.T) {
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d, adaptor := initTestBH1750DriverWithStubbedAdaptor()
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d.Start()
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adaptor.i2cReadImpl = func(b []byte) (int, error) {
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return 0, errors.New("wrong number of bytes read")
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}
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_, err := d.Lux()
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gobottest.Assert(t, err, errors.New("wrong number of bytes read"))
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}
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func TestBH1750DriverRawSensorDataError(t *testing.T) {
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d, adaptor := initTestBH1750DriverWithStubbedAdaptor()
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d.Start()
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adaptor.i2cReadImpl = func(b []byte) (int, error) {
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return 0, errors.New("wrong number of bytes read")
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}
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_, err := d.RawSensorData()
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gobottest.Assert(t, err, errors.New("wrong number of bytes read"))
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}
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