1 // Copyright 2023 The PDFium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "core/fxcrt/code_point_view.h"
6
7 #include <string>
8
9 #include "build/build_config.h"
10 #include "testing/gtest/include/gtest/gtest.h"
11
12 namespace {
13
14 using ::pdfium::CodePointView;
15
Materialize(CodePointView view)16 std::u32string Materialize(CodePointView view) {
17 std::u32string materialized;
18 for (char32_t code_point : view) {
19 materialized += code_point;
20 }
21 return materialized;
22 }
23
24 } // namespace
25
TEST(CodePointViewTest,Empty)26 TEST(CodePointViewTest, Empty) {
27 EXPECT_EQ(U"", Materialize(CodePointView(L"")));
28 }
29
TEST(CodePointViewTest,Basic)30 TEST(CodePointViewTest, Basic) {
31 EXPECT_EQ(U"(\u0080\uffff)", Materialize(CodePointView(L"(\u0080\uffff)")));
32 }
33
TEST(CodePointViewTest,Supplementary)34 TEST(CodePointViewTest, Supplementary) {
35 EXPECT_EQ(U"(��)", Materialize(CodePointView(L"(��)")));
36 }
37
TEST(CodePointViewTest,UnpairedHighSurrogate)38 TEST(CodePointViewTest, UnpairedHighSurrogate) {
39 EXPECT_EQ(U"\xd800", Materialize(CodePointView(L"\xd800")));
40 }
41
TEST(CodePointViewTest,UnpairedLowSurrogate)42 TEST(CodePointViewTest, UnpairedLowSurrogate) {
43 EXPECT_EQ(U"\xdc00", Materialize(CodePointView(L"\xdc00")));
44 }
45
46 #if defined(WCHAR_T_IS_UTF16)
TEST(CodePointViewTest,SurrogateErrorRecovery)47 TEST(CodePointViewTest, SurrogateErrorRecovery) {
48 EXPECT_EQ(U"(\xd800)", Materialize(CodePointView(L"(\xd800)"))) << "High";
49 EXPECT_EQ(U"(\xdc00)", Materialize(CodePointView(L"(\xdc00)"))) << "Low";
50 EXPECT_EQ(U"(\xd800��)", Materialize(CodePointView(L"(\xd800\xd83c\xdfa8)")))
51 << "High-high";
52 EXPECT_EQ(U"(��\xdc00)", Materialize(CodePointView(L"(\xd83c\xdfa8\xdc00)")))
53 << "Low-low";
54 }
55 #endif // defined(WCHAR_T_IS_UTF16)
56