WeKnora deployment source with the reviewed wiki identity, summary and recovery fixes

internal/handler/session/qa_attachment_test.go

@@ -0,0 +1,62 @@
+package session
+
+import (
+	"encoding/base64"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func encodedAttachment(data string, declaredSize int64) AttachmentUpload {
+	return AttachmentUpload{
+		Data:     base64.StdEncoding.EncodeToString([]byte(data)),
+		FileName: "file.txt",
+		FileSize: declaredSize,
+	}
+}
+
+func TestDecodeAndValidateAttachmentUploadsUsesActualBytes(t *testing.T) {
+	uploads := []AttachmentUpload{encodedAttachment("123456", 1)}
+
+	_, err := decodeAndValidateAttachmentUploads(uploads, 5, 5, 100)
+
+	require.Error(t, err)
+	assert.Contains(t, err.Error(), "exceeds size limit")
+}
+
+func TestDecodeAndValidateAttachmentUploadsBoundsCountAndTotal(t *testing.T) {
+	t.Run("count", func(t *testing.T) {
+		uploads := make([]AttachmentUpload, 6)
+		for i := range uploads {
+			uploads[i] = encodedAttachment("x", 1)
+		}
+		_, err := decodeAndValidateAttachmentUploads(uploads, 5, 10, 100)
+		require.Error(t, err)
+		assert.Contains(t, err.Error(), "at most 5")
+	})
+
+	t.Run("total", func(t *testing.T) {
+		uploads := []AttachmentUpload{
+			encodedAttachment(strings.Repeat("a", 6), 6),
+			encodedAttachment(strings.Repeat("b", 6), 6),
+		}
+		_, err := decodeAndValidateAttachmentUploads(uploads, 5, 10, 10)
+		require.Error(t, err)
+		assert.Contains(t, err.Error(), "total request limit")
+	})
+}
+
+func TestDecodeAndValidateAttachmentUploadsReturnsDecodedBytes(t *testing.T) {
+	decoded, err := decodeAndValidateAttachmentUploads(
+		[]AttachmentUpload{encodedAttachment("hello", 999)},
+		5,
+		10,
+		10,
+	)
+
+	require.NoError(t, err)
+	require.Len(t, decoded, 1)
+	assert.Equal(t, []byte("hello"), decoded[0])
+}