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Add BitArray.Bytes()

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This commit is contained in:
Jae Kwon
2016-02-21 00:14:08 -08:00
parent 9364accf1f
commit 1559ae1ac9
3 changed files with 46 additions and 1 deletions
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30
bit_array_test.go
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@ -1,6 +1,7 @@
package common
import (
"bytes"
"testing"
)
@ -118,3 +119,32 @@ func TestPickRandom(t *testing.T) {
}
}
}
func TestBytes(t *testing.T) {
bA := NewBitArray(4)
bA.SetIndex(0, true)
check := func(bA *BitArray, bz []byte) {
if !bytes.Equal(bA.Bytes(), bz) {
panic(Fmt("Expected %X but got %X", bz, bA.Bytes()))
}
}
check(bA, []byte{0x01})
bA.SetIndex(3, true)
check(bA, []byte{0x09})
bA = NewBitArray(9)
check(bA, []byte{0x00, 0x00})
bA.SetIndex(7, true)
check(bA, []byte{0x80, 0x00})
bA.SetIndex(8, true)
check(bA, []byte{0x80, 0x01})
bA = NewBitArray(16)
check(bA, []byte{0x00, 0x00})
bA.SetIndex(7, true)
check(bA, []byte{0x80, 0x00})
bA.SetIndex(8, true)
check(bA, []byte{0x80, 0x01})
bA.SetIndex(9, true)
check(bA, []byte{0x80, 0x03})
}