66 lines
1.7 KiB
Go
66 lines
1.7 KiB
Go
package filex
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import (
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"bytes"
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"os"
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"path/filepath"
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"testing"
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)
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func TestFillWithRandomAndCryptoRandom(t *testing.T) {
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dir := t.TempDir()
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pseudoPath := filepath.Join(dir, "pseudo.bin")
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securePath := filepath.Join(dir, "secure.bin")
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if err := FillWithRandom(pseudoPath, 2048, 128, 4, nil); err != nil {
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t.Fatalf("FillWithRandom failed: %v", err)
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}
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if err := FillWithCryptoRandom(securePath, 2048, 128, nil); err != nil {
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t.Fatalf("FillWithCryptoRandom failed: %v", err)
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}
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pseudoInfo, err := os.Stat(pseudoPath)
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if err != nil {
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t.Fatalf("stat pseudo file failed: %v", err)
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}
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if pseudoInfo.Size() != 2048 {
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t.Fatalf("unexpected pseudo size: %d", pseudoInfo.Size())
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}
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secureInfo, err := os.Stat(securePath)
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if err != nil {
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t.Fatalf("stat secure file failed: %v", err)
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}
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if secureInfo.Size() != 2048 {
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t.Fatalf("unexpected secure size: %d", secureInfo.Size())
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}
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pseudo, err := os.ReadFile(pseudoPath)
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if err != nil {
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t.Fatalf("read pseudo file failed: %v", err)
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}
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secure, err := os.ReadFile(securePath)
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if err != nil {
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t.Fatalf("read secure file failed: %v", err)
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}
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if bytes.Equal(secure, make([]byte, len(secure))) {
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t.Fatalf("secure random output should not be all zero")
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}
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if bytes.Equal(pseudo, secure) {
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t.Fatalf("pseudo and secure random outputs unexpectedly identical")
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}
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}
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func TestFillWithRandomInvalidArgs(t *testing.T) {
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dir := t.TempDir()
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path := filepath.Join(dir, "bad.bin")
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if err := FillWithRandom(path, -1, 16, 1, nil); err == nil {
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t.Fatalf("expected FillWithRandom negative filesize error")
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}
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if err := FillWithCryptoRandom(path, -1, 16, nil); err == nil {
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t.Fatalf("expected FillWithCryptoRandom negative filesize error")
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}
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}
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