v0.1 - initial commit

fiddling_test.go

@@ -0,0 +1,55 @@
+package winpwn
+
+import (
+	"bytes"
+	"testing"
+)
+
+func TestEnhexUnhexRoundTrip(t *testing.T) {
+	data := []byte("Hello, world!")
+	h := Enhex(data)
+	if h != "48656c6c6f2c20776f726c6421" {
+		t.Errorf("Enhex = %q", h)
+	}
+	back, err := Unhex(h)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !bytes.Equal(back, data) {
+		t.Errorf("Unhex(Enhex(x)) = %q, want %q", back, data)
+	}
+}
+
+func TestUnhexInvalid(t *testing.T) {
+	if _, err := Unhex("zz"); err == nil {
+		t.Error("expected error for invalid hex string")
+	}
+}
+
+func TestXorRoundTrip(t *testing.T) {
+	data := []byte("attack at dawn")
+	key := []byte{0x42}
+	if got := Xor(Xor(data, key), key); !bytes.Equal(got, data) {
+		t.Errorf("Xor(Xor(x,k),k) = %q, want %q", got, data)
+	}
+}
+
+func TestXorCyclesKey(t *testing.T) {
+	data := []byte{1, 2, 3, 4}
+	key := []byte{0xff, 0xff}
+	got := Xor(data, key)
+	want := []byte{0xfe, 0xfd, 0xfc, 0xfb}
+	if !bytes.Equal(got, want) {
+		t.Errorf("Xor = %v, want %v", got, want)
+	}
+}
+
+func TestHexdumpFormat(t *testing.T) {
+	out := Hexdump([]byte("Hello, world!"))
+	if !bytes.Contains([]byte(out), []byte("48 65 6c 6c 6f")) {
+		t.Errorf("Hexdump missing expected hex bytes: %q", out)
+	}
+	if !bytes.Contains([]byte(out), []byte("Hello, world!")) {
+		t.Errorf("Hexdump missing ASCII gutter: %q", out)
+	}
+}