50 lines
800 B
Go
50 lines
800 B
Go
package sysfs
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import (
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"os"
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"testing"
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"gobot.io/x/gobot/gobottest"
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)
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func TestNewI2cDevice(t *testing.T) {
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fs := NewMockFilesystem([]string{})
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SetFilesystem(fs)
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i, err := NewI2cDevice(os.DevNull, 0xff)
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gobottest.Refute(t, err, nil)
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fs = NewMockFilesystem([]string{
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"/dev/i2c-1",
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})
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SetFilesystem(fs)
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i, err = NewI2cDevice("/dev/i2c-1", 0xff)
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gobottest.Refute(t, err, nil)
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SetSyscall(&MockSyscall{})
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i, err = NewI2cDevice("/dev/i2c-1", 0xff)
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var _ I2cDevice = i
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gobottest.Assert(t, err, nil)
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gobottest.Assert(t, i.SetAddress(0xff), nil)
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buf := []byte{0x01, 0x02, 0x03}
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n, err := i.Write(buf)
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gobottest.Assert(t, n, len(buf))
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gobottest.Assert(t, err, nil)
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buf = make([]byte, 4)
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n, err = i.Read(buf)
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gobottest.Assert(t, n, 3)
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gobottest.Assert(t, err, nil)
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}
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