Add some helpers for attribute lookup

This CL adds helpers to CXFA_Node to convert from strings to attributes
and from attributes to their string names. A static_assert was added to
make sure the list of attributes is the same size as the attribute data
so the checks can be removed.

Change-Id: Idebc65021d71f604bcf498e4cf42252af00d802b
Reviewed-on: https://pdfium-review.googlesource.com/19270
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

1 files changed, 17 insertions, 0 deletions

diff --git a/xfa/fxfa/parser/cxfa_node_unittest.cpp b/xfa/fxfa/parser/cxfa_node_unittest.cpp
new file mode 100644
index 0000000000..93df084391
--- /dev/null
+++ b/xfa/fxfa/parser/cxfa_node_unittest.cpp
@@ -0,0 +1,17 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "xfa/fxfa/parser/cxfa_node.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/test_support.h"
+
+TEST(CXFA_NodeTest, NameToAttribute) {
+  EXPECT_EQ(XFA_Attribute::Unknown, CXFA_Node::NameToAttribute(L""));
+  EXPECT_EQ(XFA_Attribute::Unknown, CXFA_Node::NameToAttribute(L"nonesuch"));
+  EXPECT_EQ(XFA_Attribute::H, CXFA_Node::NameToAttribute(L"h"));
+  EXPECT_EQ(XFA_Attribute::Short, CXFA_Node::NameToAttribute(L"short"));
+  EXPECT_EQ(XFA_Attribute::DecipherOnly,
+            CXFA_Node::NameToAttribute(L"decipherOnly"));
+}