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package s3crypto
import (
"bytes"
"fmt"
"testing"
)
func TestAESCBCPadding(t *testing.T) {
for i := 0; i < 16; i++ {
input := make([]byte, i)
expected := append(input, bytes.Repeat([]byte{byte(16 - i)}, 16-i)...)
b, err := AESCBCPadder.Pad(input, len(input))
if err != nil {
t.Fatal("Expected error to be nil but received " + err.Error())
}
if len(b) != len(expected) {
t.Fatal(fmt.Sprintf("Case %d: data is not of the same length", i))
}
if bytes.Compare(b, expected) != 0 {
t.Fatal(fmt.Sprintf("Expected %v but got %v", expected, b))
}
}
}
func TestAESCBCUnpadding(t *testing.T) {
for i := 0; i < 16; i++ {
expected := make([]byte, i)
input := append(expected, bytes.Repeat([]byte{byte(16 - i)}, 16-i)...)
b, err := AESCBCPadder.Unpad(input)
if err != nil {
t.Fatal("Error received, was expecting nil: " + err.Error())
}
if len(b) != len(expected) {
t.Fatal(fmt.Sprintf("Case %d: data is not of the same length", i))
}
if bytes.Compare(b, expected) != 0 {
t.Fatal(fmt.Sprintf("Expected %v but got %v", expected, b))
}
}
}
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