58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
package s3crypto_test
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import (
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"bytes"
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"fmt"
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"testing"
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"github.com/aws/aws-sdk-go/service/s3/s3crypto"
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)
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func padTest(size int, t *testing.T) {
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padder := s3crypto.NewPKCS7Padder(size)
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for i := 0; i < size; i++ {
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input := make([]byte, i)
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expected := append(input, bytes.Repeat([]byte{byte(size - i)}, size-i)...)
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b, err := padder.Pad(input, len(input))
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if err != nil {
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t.Fatal("Expected error to be nil but received " + err.Error())
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}
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if len(b) != len(expected) {
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t.Fatal(fmt.Sprintf("Case %d: data is not of the same length", i))
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}
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if bytes.Compare(b, expected) != 0 {
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t.Fatal(fmt.Sprintf("Expected %v but got %v", expected, b))
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}
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}
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}
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func unpadTest(size int, t *testing.T) {
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padder := s3crypto.NewPKCS7Padder(size)
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for i := 0; i < size; i++ {
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expected := make([]byte, i)
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input := append(expected, bytes.Repeat([]byte{byte(size - i)}, size-i)...)
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b, err := padder.Unpad(input)
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if err != nil {
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t.Fatal("Error received, was expecting nil: " + err.Error())
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}
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if len(b) != len(expected) {
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t.Fatal(fmt.Sprintf("Case %d: data is not of the same length", i))
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}
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if bytes.Compare(b, expected) != 0 {
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t.Fatal(fmt.Sprintf("Expected %v but got %v", expected, b))
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}
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}
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}
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func TestPKCS7Padding(t *testing.T) {
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padTest(10, t)
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padTest(16, t)
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padTest(255, t)
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}
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func TestPKCS7Unpadding(t *testing.T) {
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unpadTest(10, t)
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unpadTest(16, t)
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unpadTest(255, t)
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}
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