Initial sow-tools import

internal/erf/erf_test.go

@@ -0,0 +1,30 @@
+package erf
+
+import (
+	"bytes"
+	"testing"
+)
+
+func TestArchiveRoundTrip(t *testing.T) {
+	archive := New("MOD ", []Resource{
+		{Name: "module", Type: 0x07DE, Data: []byte("ifo")},
+		{Name: "start", Type: 0x07DC, Data: []byte("are")},
+	})
+
+	var buf bytes.Buffer
+	if err := Write(&buf, archive); err != nil {
+		t.Fatalf("write: %v", err)
+	}
+
+	decoded, err := Read(bytes.NewReader(buf.Bytes()))
+	if err != nil {
+		t.Fatalf("read: %v", err)
+	}
+
+	if len(decoded.Resources) != 2 {
+		t.Fatalf("expected 2 resources, got %d", len(decoded.Resources))
+	}
+	if decoded.Resources[0].Name != "module" || string(decoded.Resources[0].Data) != "ifo" {
+		t.Fatalf("unexpected first resource: %#v", decoded.Resources[0])
+	}
+}