ml
65 lines
1.6 KiB
Go
65 lines
1.6 KiB
Go
package serial_test
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import (
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"bytes"
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"testing"
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"github.com/inkyblackness/hacked/ss1/serial"
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"github.com/stretchr/testify/assert"
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)
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func TestPositioningDecoderSetCurPosRepositionsReadOffset(t *testing.T) {
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var source = bytes.NewReader([]byte{0x78, 0x12, 0x34})
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coder := serial.NewPositioningDecoder(source)
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arrayValue := make([]byte, 3)
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var intValue uint16
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coder.Code(arrayValue)
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coder.SetCurPos(1)
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coder.Code(&intValue)
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assert.Equal(t, uint16(0x3412), intValue)
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}
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func TestPositioningDecoderCurPosReturnsCurrentOffset(t *testing.T) {
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var source = bytes.NewReader([]byte{0x78, 0x12, 0x34})
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coder := serial.NewPositioningDecoder(source)
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coder.Code(uint16(0))
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assert.Equal(t, uint32(2), coder.CurPos())
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}
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func TestPositioningDecoderFirstErrorBySetCurPos(t *testing.T) {
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var target errorBuffer
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coder := serial.NewPositioningDecoder(&target)
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data := uint32(0)
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coder.Code(&data)
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target.errorOnNextCall = true
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coder.SetCurPos(0)
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assert.EqualError(t, coder.FirstError(), "errorBuffer on call number 2")
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}
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func TestPositioningDecoderSetCurPosDoesNothingOnPreviousError(t *testing.T) {
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var target errorBuffer
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coder := serial.NewPositioningDecoder(&target)
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target.errorOnNextCall = true
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coder.Code(uint32(0))
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target.errorOnNextCall = true
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coder.SetCurPos(0)
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assert.Equal(t, target.callCounter, 1)
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assert.EqualError(t, coder.FirstError(), "errorBuffer on call number 1")
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}
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func TestCurPosIsNotChangedOnSetError(t *testing.T) {
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var target errorBuffer
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coder := serial.NewPositioningDecoder(&target)
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target.errorOnNextCall = true
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coder.SetCurPos(4)
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assert.Equal(t, uint32(0), coder.CurPos())
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}
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