1 // Copyright 2016 PDFium Authors. All rights reserved.
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/fpdfapi/parser/cpdf_simple_parser.h"
6
7 #include <string>
8
9 #include "core/fpdfapi/parser/fpdf_parser_utility.h"
10 #include "core/fxcrt/fx_basic.h"
11 #include "testing/gtest/include/gtest/gtest.h"
12 #include "testing/test_support.h"
13
TEST(SimpleParserTest,GetWord)14 TEST(SimpleParserTest, GetWord) {
15 pdfium::StrFuncTestData test_data[] = {
16 // Empty src string.
17 STR_IN_OUT_CASE("", ""),
18 // Content with whitespaces only.
19 STR_IN_OUT_CASE(" \t \0 \n", ""),
20 // Content with comments only.
21 STR_IN_OUT_CASE("%this is a test case\r\n%2nd line", ""),
22 // Mixed whitespaces and comments.
23 STR_IN_OUT_CASE(" \t \0%try()%haha\n %another line \aa", ""),
24 // Name.
25 STR_IN_OUT_CASE(" /Tester ", "/Tester"),
26 // String.
27 STR_IN_OUT_CASE("\t(nice day)!\n ", "(nice day)"),
28 // String with nested braces.
29 STR_IN_OUT_CASE("\t(It is a (long) day)!\n ", "(It is a (long) day)"),
30 // String with escaped chars.
31 STR_IN_OUT_CASE("\t(It is a \\(long\\) day!)hi\n ",
32 "(It is a \\(long\\) day!)"),
33 // Hex string.
34 STR_IN_OUT_CASE(" \n<4545acdfedertt>abc ", "<4545acdfedertt>"),
35 STR_IN_OUT_CASE(" \n<4545a<ed>ertt>abc ", "<4545a<ed>"),
36 // Dictionary.
37 STR_IN_OUT_CASE("<</oc 234 /color 2 3 R>>", "<<"),
38 STR_IN_OUT_CASE("\t\t<< /abc>>", "<<"),
39 // Handling ending delimiters.
40 STR_IN_OUT_CASE("> little bear", ">"),
41 STR_IN_OUT_CASE(") another bear", ")"), STR_IN_OUT_CASE(">> end ", ">>"),
42 // No ending delimiters.
43 STR_IN_OUT_CASE("(sdfgfgbcv", "(sdfgfgbcv"),
44 // Regular cases.
45 STR_IN_OUT_CASE("apple pear", "apple"),
46 STR_IN_OUT_CASE(" pi=3.1415 ", "pi=3.1415"),
47 STR_IN_OUT_CASE(" p t x c ", "p"), STR_IN_OUT_CASE(" pt\0xc ", "pt"),
48 STR_IN_OUT_CASE(" $^&&*\t\0sdff ", "$^&&*"),
49 STR_IN_OUT_CASE("\n\r+3.5656 -11.0", "+3.5656"),
50 };
51 for (size_t i = 0; i < FX_ArraySize(test_data); ++i) {
52 const pdfium::StrFuncTestData& data = test_data[i];
53 CPDF_SimpleParser parser(data.input, data.input_size);
54 CFX_ByteStringC word = parser.GetWord();
55 EXPECT_EQ(std::string(reinterpret_cast<const char*>(data.expected),
56 data.expected_size),
57 std::string(word.c_str(), word.GetLength()))
58 << " for case " << i;
59 }
60 }
61
TEST(SimpleParserTest,FindTagParamFromStart)62 TEST(SimpleParserTest, FindTagParamFromStart) {
63 struct FindTagTestStruct {
64 const unsigned char* input;
65 unsigned int input_size;
66 const char* token;
67 int num_params;
68 bool result;
69 unsigned int result_pos;
70 } test_data[] = {
71 // Empty strings.
72 STR_IN_TEST_CASE("", "Tj", 1, false, 0),
73 STR_IN_TEST_CASE("", "", 1, false, 0),
74 // Empty token.
75 STR_IN_TEST_CASE(" T j", "", 1, false, 5),
76 // No parameter.
77 STR_IN_TEST_CASE("Tj", "Tj", 1, false, 2),
78 STR_IN_TEST_CASE("(Tj", "Tj", 1, false, 3),
79 // Partial token match.
80 STR_IN_TEST_CASE("\r12\t34 56 78Tj", "Tj", 1, false, 15),
81 // Regular cases with various parameters.
82 STR_IN_TEST_CASE("\r\0abd Tj", "Tj", 1, true, 0),
83 STR_IN_TEST_CASE("12 4 Tj 3 46 Tj", "Tj", 1, true, 2),
84 STR_IN_TEST_CASE("er^ 2 (34) (5667) Tj", "Tj", 2, true, 5),
85 STR_IN_TEST_CASE("<344> (232)\t343.4\n12 45 Tj", "Tj", 3, true, 11),
86 STR_IN_TEST_CASE("1 2 3 4 5 6 7 8 cm", "cm", 6, true, 3),
87 };
88 for (size_t i = 0; i < FX_ArraySize(test_data); ++i) {
89 const FindTagTestStruct& data = test_data[i];
90 CPDF_SimpleParser parser(data.input, data.input_size);
91 EXPECT_EQ(data.result,
92 parser.FindTagParamFromStart(data.token, data.num_params))
93 << " for case " << i;
94 EXPECT_EQ(data.result_pos, parser.GetCurPos()) << " for case " << i;
95 }
96 }
97