134 lines
3.2 KiB
Go
134 lines
3.2 KiB
Go
package i2c
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import (
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"bytes"
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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 = (*MMA7660Driver)(nil)
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// --------- HELPERS
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func initTestMMA7660Driver() (driver *MMA7660Driver) {
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driver, _ = initTestMMA7660DriverWithStubbedAdaptor()
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return
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}
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func initTestMMA7660DriverWithStubbedAdaptor() (*MMA7660Driver, *i2cTestAdaptor) {
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adaptor := newI2cTestAdaptor()
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return NewMMA7660Driver(adaptor), adaptor
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}
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// --------- TESTS
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func TestNewMMA7660Driver(t *testing.T) {
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// Does it return a pointer to an instance of MMA7660Driver?
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var mma interface{} = NewMMA7660Driver(newI2cTestAdaptor())
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_, ok := mma.(*MMA7660Driver)
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if !ok {
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t.Errorf("NewMMA7660Driver() should have returned a *MMA7660Driver")
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}
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}
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// Methods
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func TestMMA7660Driver(t *testing.T) {
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mma := initTestMMA7660Driver()
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gobottest.Refute(t, mma.Connection(), nil)
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gobottest.Assert(t, strings.HasPrefix(mma.Name(), "MMA7660"), true)
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}
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func TestMMA7660DriverSetName(t *testing.T) {
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d := initTestMMA7660Driver()
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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 TestMMA7660DriverOptions(t *testing.T) {
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d := NewMMA7660Driver(newI2cTestAdaptor(), WithBus(2))
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gobottest.Assert(t, d.GetBusOrDefault(1), 2)
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}
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func TestMMA7660DriverStart(t *testing.T) {
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d := initTestMMA7660Driver()
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gobottest.Assert(t, d.Start(), nil)
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}
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func TestMMA7660DriverStartWriteError(t *testing.T) {
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mma, adaptor := initTestMMA7660DriverWithStubbedAdaptor()
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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 TestMMA7660DriverHalt(t *testing.T) {
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d := initTestMMA7660Driver()
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gobottest.Assert(t, d.Halt(), nil)
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}
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func TestMMA7660DriverAcceleration(t *testing.T) {
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d := initTestMMA7660Driver()
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x, y, z := d.Acceleration(21.0, 21.0, 21.0)
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gobottest.Assert(t, x, 1.0)
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gobottest.Assert(t, y, 1.0)
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gobottest.Assert(t, z, 1.0)
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}
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func TestMMA7660DriverNullXYZ(t *testing.T) {
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d, _ := initTestMMA7660DriverWithStubbedAdaptor()
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d.Start()
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x, y, z, _ := d.XYZ()
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gobottest.Assert(t, x, 0.0)
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gobottest.Assert(t, y, 0.0)
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gobottest.Assert(t, z, 0.0)
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}
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func TestMMA7660DriverXYZ(t *testing.T) {
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d, adaptor := initTestMMA7660DriverWithStubbedAdaptor()
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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{0x11, 0x12, 0x13})
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copy(b, buf.Bytes())
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return buf.Len(), nil
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}
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x, y, z, _ := d.XYZ()
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gobottest.Assert(t, x, 17.0)
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gobottest.Assert(t, y, 18.0)
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gobottest.Assert(t, z, 19.0)
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}
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func TestMMA7660DriverXYZError(t *testing.T) {
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d, adaptor := initTestMMA7660DriverWithStubbedAdaptor()
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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("read error")
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}
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_, _, _, err := d.XYZ()
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gobottest.Assert(t, err, errors.New("read error"))
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}
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func TestMMA7660DriverXYZNotReady(t *testing.T) {
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d, adaptor := initTestMMA7660DriverWithStubbedAdaptor()
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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{0x40, 0x40, 0x40})
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copy(b, buf.Bytes())
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return buf.Len(), nil
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}
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_, _, _, err := d.XYZ()
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gobottest.Assert(t, err, ErrNotReady)
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}
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