929 lines
17 KiB
Go
929 lines
17 KiB
Go
package buffers_test
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import (
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"sourcecode.social/reiver/go-buffers"
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"reflect"
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"testing"
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)
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func TestWriterSingleWrite(t *testing.T) {
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tests := []struct {
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BufferLength int
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Src []byte
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Expected []byte
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}{
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{
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BufferLength: 0,
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Src: []byte("apple"),
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Expected: []byte{},
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},
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{
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BufferLength: 1,
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Src: []byte("apple"),
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Expected: []byte{},
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},
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{
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BufferLength: 2,
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Src: []byte("apple"),
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Expected: []byte{},
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},
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{
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BufferLength: 3,
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Src: []byte("apple"),
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Expected: []byte{},
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},
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{
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BufferLength: 4,
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Src: []byte("apple"),
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Expected: []byte{},
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},
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{
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BufferLength: 5,
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Src: []byte("apple"),
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Expected: []byte("apple"),
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},
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{
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BufferLength: 6,
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Src: []byte("apple"),
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Expected: []byte("apple"),
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},
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{
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BufferLength: 7,
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Src: []byte("apple"),
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Expected: []byte("apple"),
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},
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{
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BufferLength: 8,
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Src: []byte("apple"),
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Expected: []byte("apple"),
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},
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{
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BufferLength: 9,
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Src: []byte("apple"),
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Expected: []byte("apple"),
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},
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{
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BufferLength: 10,
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Src: []byte("apple"),
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Expected: []byte("apple"),
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},
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{
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BufferLength: 0,
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Src: []byte("apple BANANA"),
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Expected: []byte{},
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},
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{
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BufferLength: 1,
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Src: []byte("apple BANANA"),
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Expected: []byte{},
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},
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{
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BufferLength: 2,
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Src: []byte("apple BANANA"),
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Expected: []byte{},
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},
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{
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BufferLength: 3,
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Src: []byte("apple BANANA"),
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Expected: []byte{},
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},
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{
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BufferLength: 4,
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Src: []byte("apple BANANA"),
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Expected: []byte{},
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},
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{
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BufferLength: 5,
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Src: []byte("apple BANANA"),
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Expected: []byte{},
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},
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{
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BufferLength: 6,
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Src: []byte("apple BANANA"),
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Expected: []byte{},
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},
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{
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BufferLength: 7,
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Src: []byte("apple BANANA"),
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Expected: []byte{},
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},
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{
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BufferLength: 8,
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Src: []byte("apple BANANA"),
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Expected: []byte{},
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},
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{
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BufferLength: 9,
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Src: []byte("apple BANANA"),
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Expected: []byte{},
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},
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{
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BufferLength: 10,
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Src: []byte("apple BANANA"),
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Expected: []byte{},
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},
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{
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BufferLength: 11,
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Src: []byte("apple BANANA"),
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Expected: []byte{},
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},
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{
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BufferLength: 12,
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Src: []byte("apple BANANA"),
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Expected: []byte("apple BANANA"),
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},
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{
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BufferLength: 13,
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Src: []byte("apple BANANA"),
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Expected: []byte("apple BANANA"),
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},
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{
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BufferLength: 14,
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Src: []byte("apple BANANA"),
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Expected: []byte("apple BANANA"),
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},
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{
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BufferLength: 15,
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Src: []byte("apple BANANA"),
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Expected: []byte("apple BANANA"),
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},
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{
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BufferLength: 16,
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Src: []byte("apple BANANA"),
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Expected: []byte("apple BANANA"),
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},
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{
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BufferLength: 17,
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Src: []byte("apple BANANA"),
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Expected: []byte("apple BANANA"),
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},
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{
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BufferLength: 18,
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Src: []byte("apple BANANA"),
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Expected: []byte("apple BANANA"),
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},
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{
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BufferLength: 19,
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Src: []byte("apple BANANA"),
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Expected: []byte("apple BANANA"),
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},
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{
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BufferLength: 20,
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Src: []byte("apple BANANA"),
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Expected: []byte("apple BANANA"),
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},
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{
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BufferLength: 0,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 1,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 2,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 3,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 4,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 5,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 6,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 7,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 8,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 9,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 10,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 11,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 12,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 13,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 14,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 15,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 16,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 17,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 18,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte{},
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},
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{
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BufferLength: 19,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte("apple BANANA Cherry"),
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},
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{
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BufferLength: 20,
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Src: []byte("apple BANANA Cherry"),
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Expected: []byte("apple BANANA Cherry"),
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},
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}
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for testNumber, test := range tests {
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var buffer []byte = make([]byte, test.BufferLength)
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var dst *buffers.Writer = buffers.NewWriter(buffer)
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n, err := dst.Write(test.Src)
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if _, casted := err.(buffers.TooShort); !casted {
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if nil != err {
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t.Errorf("For test #%d, did not expect an error, but actually got one.", testNumber)
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t.Logf("SRC: %q", test.Src)
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t.Logf("DST: %q (full)", buffer)
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t.Logf("DST EXPECTED: %q", test.Expected)
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t.Logf("ERROR TYPE: %T", err)
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t.Logf("ERROR: %q", err)
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continue
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}
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}
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var expectedWritten int
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{
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lenBuffer := len(buffer)
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lenSrc := len(test.Src)
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if lenBuffer < lenSrc {
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expectedWritten = lenBuffer
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} else {
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expectedWritten = lenSrc
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}
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if _, casted := err.(buffers.TooShort); casted {
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expectedWritten = 0
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}
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}
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if expected, actual := expectedWritten, n; expected != actual {
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t.Errorf("For test #%d, the actual number of bytes written was not what was expected.", testNumber)
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t.Logf("SRC: %q", test.Src)
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t.Logf("DST: %q (full)", buffer)
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t.Logf("DST: %q", buffer[n:])
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t.Logf("DST EXPECTED: %q", test.Expected)
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t.Logf("EXPECTED: %d", expected)
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t.Logf("ACTUAL: %d", actual)
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continue
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}
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if expected, actual := test.Expected, buffer[:n]; !reflect.DeepEqual(expected, actual) {
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t.Errorf("For test #%d, what was written is not what was expected.", testNumber)
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t.Logf("SRC: %q", test.Src)
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t.Logf("DST: %q (full)", buffer)
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t.Logf("DST: %q", buffer[n:])
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t.Logf("DST EXPECTED: %q", test.Expected)
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t.Logf("EXPECTED: %q", expected,)
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t.Logf("ACTUAL: %q", actual)
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continue
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}
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}
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}
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func TestWriterMultipleWrites(t *testing.T) {
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tests := []struct {
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BufferLength int
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Srces [][]byte
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Expected []byte
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}{
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{
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BufferLength: 0,
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Srces: [][]byte{
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[]byte("a"),
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[]byte("p"),
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[]byte("p"),
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[]byte("l"),
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[]byte("e"),
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},
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Expected: []byte{},
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},
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{
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BufferLength: 1,
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Srces: [][]byte{
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[]byte("a"),
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[]byte("p"),
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[]byte("p"),
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[]byte("l"),
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[]byte("e"),
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},
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Expected: []byte("a"),
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},
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{
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BufferLength: 2,
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Srces: [][]byte{
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[]byte("a"),
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[]byte("p"),
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[]byte("p"),
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[]byte("l"),
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[]byte("e"),
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},
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Expected: []byte("ap"),
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},
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{
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BufferLength: 3,
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Srces: [][]byte{
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[]byte("a"),
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[]byte("p"),
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[]byte("p"),
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[]byte("l"),
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[]byte("e"),
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},
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Expected: []byte("app"),
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},
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{
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BufferLength: 4,
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Srces: [][]byte{
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[]byte("a"),
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[]byte("p"),
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[]byte("p"),
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[]byte("l"),
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[]byte("e"),
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},
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Expected: []byte("appl"),
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},
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{
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BufferLength: 5,
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Srces: [][]byte{
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[]byte("a"),
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[]byte("p"),
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[]byte("p"),
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[]byte("l"),
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[]byte("e"),
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},
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Expected: []byte("apple"),
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},
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{
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BufferLength: 6,
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Srces: [][]byte{
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[]byte("a"),
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[]byte("p"),
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[]byte("p"),
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[]byte("l"),
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[]byte("e"),
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},
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Expected: []byte("apple"),
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},
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{
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BufferLength: 7,
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Srces: [][]byte{
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[]byte("a"),
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[]byte("p"),
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[]byte("p"),
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[]byte("l"),
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[]byte("e"),
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},
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Expected: []byte("apple"),
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},
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{
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BufferLength: 8,
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Srces: [][]byte{
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[]byte("a"),
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[]byte("p"),
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[]byte("p"),
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[]byte("l"),
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[]byte("e"),
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},
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Expected: []byte("apple"),
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},
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{
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BufferLength: 9,
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Srces: [][]byte{
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[]byte("a"),
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[]byte("p"),
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[]byte("p"),
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[]byte("l"),
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[]byte("e"),
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},
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Expected: []byte("apple"),
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},
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{
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BufferLength: 10,
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Srces: [][]byte{
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[]byte("a"),
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[]byte("p"),
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[]byte("p"),
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[]byte("l"),
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[]byte("e"),
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},
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Expected: []byte("apple"),
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},
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{
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BufferLength: 0,
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Srces: [][]byte{
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[]byte("BA"),
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[]byte("NA"),
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[]byte("N"),
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[]byte("A"),
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},
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Expected: []byte{},
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},
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{
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BufferLength: 1,
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Srces: [][]byte{
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[]byte("BA"),
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[]byte("NA"),
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[]byte("N"),
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[]byte("A"),
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},
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Expected: []byte{},
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},
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{
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BufferLength: 2,
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Srces: [][]byte{
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[]byte("BA"),
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[]byte("NA"),
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[]byte("N"),
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[]byte("A"),
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},
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Expected: []byte("BA"),
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},
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{
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BufferLength: 3,
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Srces: [][]byte{
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[]byte("BA"),
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[]byte("NA"),
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[]byte("N"),
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[]byte("A"),
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},
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Expected: []byte("BA"),
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},
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{
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BufferLength: 4,
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Srces: [][]byte{
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[]byte("BA"),
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[]byte("NA"),
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[]byte("N"),
|
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[]byte("A"),
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},
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Expected: []byte("BANA"),
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},
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{
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BufferLength: 5,
|
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Srces: [][]byte{
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[]byte("BA"),
|
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[]byte("NA"),
|
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[]byte("N"),
|
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[]byte("A"),
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},
|
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Expected: []byte("BANAN"),
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},
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{
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BufferLength: 6,
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Srces: [][]byte{
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[]byte("BA"),
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[]byte("NA"),
|
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[]byte("N"),
|
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[]byte("A"),
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},
|
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Expected: []byte("BANANA"),
|
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},
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{
|
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BufferLength: 7,
|
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Srces: [][]byte{
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[]byte("BA"),
|
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[]byte("NA"),
|
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[]byte("N"),
|
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[]byte("A"),
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},
|
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Expected: []byte("BANANA"),
|
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},
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{
|
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BufferLength: 8,
|
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Srces: [][]byte{
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[]byte("BA"),
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[]byte("NA"),
|
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[]byte("N"),
|
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[]byte("A"),
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},
|
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Expected: []byte("BANANA"),
|
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},
|
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{
|
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BufferLength: 9,
|
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Srces: [][]byte{
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[]byte("BA"),
|
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[]byte("NA"),
|
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[]byte("N"),
|
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[]byte("A"),
|
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},
|
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Expected: []byte("BANANA"),
|
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},
|
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{
|
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BufferLength: 10,
|
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Srces: [][]byte{
|
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[]byte("BA"),
|
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[]byte("NA"),
|
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[]byte("N"),
|
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[]byte("A"),
|
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},
|
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Expected: []byte("BANANA"),
|
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},
|
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|
|
|
|
|
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{
|
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BufferLength: 0,
|
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Srces: [][]byte{
|
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[]byte("apple "),
|
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[]byte("BANANA"),
|
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[]byte(" "),
|
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[]byte("Cherry"),
|
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},
|
|
Expected: []byte{},
|
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},
|
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{
|
|
BufferLength: 1,
|
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Srces: [][]byte{
|
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[]byte("apple "),
|
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[]byte("BANANA"),
|
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[]byte(" "),
|
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[]byte("Cherry"),
|
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},
|
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Expected: []byte{},
|
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},
|
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{
|
|
BufferLength: 2,
|
|
Srces: [][]byte{
|
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[]byte("apple "),
|
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[]byte("BANANA"),
|
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[]byte(" "),
|
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[]byte("Cherry"),
|
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},
|
|
Expected: []byte{},
|
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},
|
|
{
|
|
BufferLength: 3,
|
|
Srces: [][]byte{
|
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[]byte("apple "),
|
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[]byte("BANANA"),
|
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[]byte(" "),
|
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[]byte("Cherry"),
|
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},
|
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Expected: []byte{},
|
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},
|
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{
|
|
BufferLength: 4,
|
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Srces: [][]byte{
|
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[]byte("apple "),
|
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[]byte("BANANA"),
|
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[]byte(" "),
|
|
[]byte("Cherry"),
|
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},
|
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Expected: []byte{},
|
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},
|
|
{
|
|
BufferLength: 5,
|
|
Srces: [][]byte{
|
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[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte{},
|
|
},
|
|
{
|
|
BufferLength: 6,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple "),
|
|
},
|
|
{
|
|
BufferLength: 7,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple "),
|
|
},
|
|
{
|
|
BufferLength: 8,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple "),
|
|
},
|
|
{
|
|
BufferLength: 9,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple "),
|
|
},
|
|
{
|
|
BufferLength: 10,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple "),
|
|
},
|
|
{
|
|
BufferLength: 11,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple "),
|
|
},
|
|
{
|
|
BufferLength: 12,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple BANANA"),
|
|
},
|
|
{
|
|
BufferLength: 13,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple BANANA "),
|
|
},
|
|
{
|
|
BufferLength: 14,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple BANANA "),
|
|
},
|
|
{
|
|
BufferLength: 15,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple BANANA "),
|
|
},
|
|
{
|
|
BufferLength: 16,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple BANANA "),
|
|
},
|
|
{
|
|
BufferLength: 17,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple BANANA "),
|
|
},
|
|
{
|
|
BufferLength: 18,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple BANANA "),
|
|
},
|
|
{
|
|
BufferLength: 19,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple BANANA Cherry"),
|
|
},
|
|
{
|
|
BufferLength: 20,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple BANANA Cherry"),
|
|
},
|
|
{
|
|
BufferLength: 21,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple BANANA Cherry"),
|
|
},
|
|
{
|
|
BufferLength: 22,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple BANANA Cherry"),
|
|
},
|
|
{
|
|
BufferLength: 23,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple BANANA Cherry"),
|
|
},
|
|
{
|
|
BufferLength: 24,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple BANANA Cherry"),
|
|
},
|
|
{
|
|
BufferLength: 25,
|
|
Srces: [][]byte{
|
|
[]byte("apple "),
|
|
[]byte("BANANA"),
|
|
[]byte(" "),
|
|
[]byte("Cherry"),
|
|
},
|
|
Expected: []byte("apple BANANA Cherry"),
|
|
},
|
|
}
|
|
|
|
TestLoop: for testNumber, test := range tests {
|
|
|
|
var buffer []byte = make([]byte, test.BufferLength)
|
|
|
|
var dst *buffers.Writer = buffers.NewWriter(buffer)
|
|
|
|
var sum int
|
|
|
|
InnerLoop: for srcNumber, src := range test.Srces {
|
|
|
|
n, err := dst.Write(src)
|
|
if _, casted := err.(buffers.TooShort); casted {
|
|
break InnerLoop
|
|
}
|
|
if nil != err {
|
|
t.Errorf("For test #%d and src #%d, did not expect an error, but actually got one.", testNumber, srcNumber)
|
|
t.Logf("BUFFER LENGTH: %d", test.BufferLength)
|
|
for i, s := range test.Srces {
|
|
t.Logf("SRC[%d]: %q", i, s)
|
|
}
|
|
t.Logf("SRC: %q", src)
|
|
t.Logf("DST: %q (full)", buffer)
|
|
t.Logf("DST EXPECTED: %q", test.Expected)
|
|
t.Logf("ERROR TYPE: %T", err)
|
|
t.Logf("ERROR: %q", err)
|
|
continue TestLoop
|
|
}
|
|
|
|
var expectedWritten int
|
|
{
|
|
lenBuffer := len(buffer)
|
|
lenSrc := len(src)
|
|
|
|
if lenBuffer-sum < lenSrc {
|
|
expectedWritten = lenBuffer-sum
|
|
} else {
|
|
expectedWritten = lenSrc
|
|
}
|
|
}
|
|
|
|
if expected, actual := expectedWritten, n; expected != actual {
|
|
t.Errorf("For test #%d and src #%d, the actual number of bytes written was not what was expected.", testNumber, srcNumber)
|
|
t.Logf("BUFFER LENGTH: %d", test.BufferLength)
|
|
for i, s := range test.Srces {
|
|
t.Logf("SRC[%d]: %q", i, s)
|
|
}
|
|
t.Logf("SRC: %q", src)
|
|
t.Logf("DST: %q (full)", buffer)
|
|
t.Logf("DST: %q", buffer[n:])
|
|
t.Logf("DST EXPECTED: %q", test.Expected)
|
|
t.Logf("EXPECTED: %d", expected)
|
|
t.Logf("ACTUAL: %d", actual)
|
|
continue TestLoop
|
|
}
|
|
|
|
sum += n
|
|
}
|
|
|
|
if expected, actual := test.Expected, buffer[:sum]; !reflect.DeepEqual(expected, actual) {
|
|
t.Errorf("For test #%d, what was written is not what was expected.", testNumber)
|
|
t.Logf("BUFFER LENGTH: %d", test.BufferLength)
|
|
for i, s := range test.Srces {
|
|
t.Logf("SRC[%d]: %q", i, s)
|
|
}
|
|
t.Logf("DST: %q (full)", buffer)
|
|
t.Logf("DST: %q", buffer[sum:])
|
|
t.Logf("DST EXPECTED: %q", test.Expected)
|
|
t.Logf("EXPECTED: %q", expected,)
|
|
t.Logf("ACTUAL: %q", actual)
|
|
continue TestLoop
|
|
}
|
|
}
|
|
}
|