107 lines
2.7 KiB
Go
107 lines
2.7 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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"gobot.io/x/gobot"
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"gobot.io/x/gobot/gobottest"
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)
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var _ gobot.Driver = (*MPL115A2Driver)(nil)
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// --------- HELPERS
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func initTestMPL115A2Driver() (driver *MPL115A2Driver) {
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driver, _ = initTestMPL115A2DriverWithStubbedAdaptor()
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return
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}
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func initTestMPL115A2DriverWithStubbedAdaptor() (*MPL115A2Driver, *i2cTestAdaptor) {
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adaptor := newI2cTestAdaptor()
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return NewMPL115A2Driver(adaptor), adaptor
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}
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// --------- TESTS
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func TestNewMPL115A2Driver(t *testing.T) {
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// Does it return a pointer to an instance of MPL115A2Driver?
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var mpl interface{} = NewMPL115A2Driver(newI2cTestAdaptor())
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_, ok := mpl.(*MPL115A2Driver)
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if !ok {
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t.Errorf("NewMPL115A2Driver() should have returned a *MPL115A2Driver")
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}
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}
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// Methods
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func TestMPL115A2Driver(t *testing.T) {
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mpl := initTestMPL115A2Driver()
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gobottest.Refute(t, mpl.Connection(), nil)
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gobottest.Assert(t, strings.HasPrefix(mpl.Name(), "MPL115A2"), true)
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}
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func TestMPL115A2DriverOptions(t *testing.T) {
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mpl := NewMPL115A2Driver(newI2cTestAdaptor(), WithBus(2))
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gobottest.Assert(t, mpl.GetBusOrDefault(1), 2)
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}
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func TestMPL115A2DriverSetName(t *testing.T) {
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mpl := initTestMPL115A2Driver()
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mpl.SetName("TESTME")
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gobottest.Assert(t, mpl.Name(), "TESTME")
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}
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func TestMPL115A2DriverStart(t *testing.T) {
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mpl, _ := initTestMPL115A2DriverWithStubbedAdaptor()
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gobottest.Assert(t, mpl.Start(), nil)
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}
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func TestMPL115A2StartConnectError(t *testing.T) {
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d, adaptor := initTestMPL115A2DriverWithStubbedAdaptor()
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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 TestMPL115A2DriverStartWriteError(t *testing.T) {
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mpl, adaptor := initTestMPL115A2DriverWithStubbedAdaptor()
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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, mpl.Start(), errors.New("write error"))
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}
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func TestMPL115A2DriverReadData(t *testing.T) {
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mpl, adaptor := initTestMPL115A2DriverWithStubbedAdaptor()
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adaptor.i2cReadImpl = func(b []byte) (int, error) {
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copy(b, []byte{0x00, 0x01, 0x02, 0x04})
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return 4, nil
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}
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mpl.Start()
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press, _ := mpl.Pressure()
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temp, _ := mpl.Temperature()
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gobottest.Assert(t, press, float32(50.007942))
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gobottest.Assert(t, temp, float32(116.58878))
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}
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func TestMPL115A2DriverReadDataError(t *testing.T) {
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mpl, adaptor := initTestMPL115A2DriverWithStubbedAdaptor()
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mpl.Start()
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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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_, err := mpl.Pressure()
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gobottest.Assert(t, err, errors.New("write error"))
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}
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func TestMPL115A2DriverHalt(t *testing.T) {
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mpl := initTestMPL115A2Driver()
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gobottest.Assert(t, mpl.Halt(), nil)
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}
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