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authorDan Sinclair <dsinclair@chromium.org>2015-11-03 14:08:32 -0500
committerDan Sinclair <dsinclair@chromium.org>2015-11-03 14:08:32 -0500
commit71ad9a0028a183605fba734c48b4756d6caa7754 (patch)
treee2131a884716aad7138376f85776be870c113911 /core/src/fpdfapi
parente067f7bab4317704de27917c1befa8f57a0e78d7 (diff)
downloadpdfium-71ad9a0028a183605fba734c48b4756d6caa7754.tar.xz
Add test for CPDF_SyntaxParser::ReadHexString.
This CL adds tests for the ReadHexString method of the syntax parser. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1433503002 .
Diffstat (limited to 'core/src/fpdfapi')
-rw-r--r--core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_unittest.cpp170
1 files changed, 170 insertions, 0 deletions
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_unittest.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_unittest.cpp
new file mode 100644
index 0000000000..8063d6fd9c
--- /dev/null
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_unittest.cpp
@@ -0,0 +1,170 @@
+// Copyright 2015 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 "testing/gtest/include/gtest/gtest.h"
+
+#include "../../../include/fpdfapi/fpdf_parser.h"
+
+// TODO(thestig) Using unique_ptr with ReleaseDeleter is still not ideal.
+// Come up or wait for something better.
+using ScopedFileStream =
+ nonstd::unique_ptr<IFX_FileStream, ReleaseDeleter<IFX_FileStream>>;
+
+TEST(fpdf_parser_parser, ReadHexString) {
+ {
+ // Empty string.
+ uint8_t data[] = "";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 0, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("", parser.ReadHexString());
+ EXPECT_EQ(0, parser.SavePos());
+ }
+
+ {
+ // Blank string.
+ uint8_t data[] = " ";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 2, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("", parser.ReadHexString());
+ EXPECT_EQ(2, parser.SavePos());
+ }
+
+ {
+ // Skips unknown characters.
+ uint8_t data[] = "z12b";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\x12\xb0", parser.ReadHexString());
+ EXPECT_EQ(4, parser.SavePos());
+ }
+
+ {
+ // Skips unknown characters.
+ uint8_t data[] = "*<&*#$^&@1";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 10, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\x10", parser.ReadHexString());
+ EXPECT_EQ(10, parser.SavePos());
+ }
+
+ {
+ // Skips unknown characters.
+ uint8_t data[] = "\x80zab";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\xab", parser.ReadHexString());
+ EXPECT_EQ(4, parser.SavePos());
+ }
+
+ {
+ // Skips unknown characters.
+ uint8_t data[] = "\xffzab";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\xab", parser.ReadHexString());
+ EXPECT_EQ(4, parser.SavePos());
+ }
+
+ {
+ // Regular conversion.
+ uint8_t data[] = "1A2b>abcd";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 9, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\x1a\x2b", parser.ReadHexString());
+ EXPECT_EQ(5, parser.SavePos());
+ }
+
+ {
+ // Position out of bounds.
+ uint8_t data[] = "12ab>";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 5, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ parser.RestorePos(5);
+ EXPECT_EQ("", parser.ReadHexString());
+
+ parser.RestorePos(6);
+ EXPECT_EQ("", parser.ReadHexString());
+
+ parser.RestorePos(-1);
+ EXPECT_EQ("", parser.ReadHexString());
+
+ parser.RestorePos(0xfffffffffff);
+ EXPECT_EQ("", parser.ReadHexString());
+
+ // Check string still parses when set to 0.
+ parser.RestorePos(0);
+ EXPECT_EQ("\x12\xab", parser.ReadHexString());
+ }
+
+ {
+ // Missing ending >.
+ uint8_t data[] = "1A2b";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\x1a\x2b", parser.ReadHexString());
+ EXPECT_EQ(4, parser.SavePos());
+ }
+
+ {
+ // Missing ending >.
+ uint8_t data[] = "12abz";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 5, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\x12\xab", parser.ReadHexString());
+ EXPECT_EQ(5, parser.SavePos());
+ }
+
+ {
+ // Uneven number of bytes.
+ uint8_t data[] = "1A2>asdf";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 8, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\x1a\x20", parser.ReadHexString());
+ EXPECT_EQ(4, parser.SavePos());
+ }
+
+ {
+ // Uneven number of bytes.
+ uint8_t data[] = "1A2zasdf";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 8, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("\x1a\x2a\xdf", parser.ReadHexString());
+ EXPECT_EQ(8, parser.SavePos());
+ }
+
+ {
+ // Just ending character.
+ uint8_t data[] = ">";
+ ScopedFileStream stream(FX_CreateMemoryStream(data, 1, FALSE));
+
+ CPDF_SyntaxParser parser;
+ parser.InitParser(stream.get(), 0);
+ EXPECT_EQ("", parser.ReadHexString());
+ EXPECT_EQ(1, parser.SavePos());
+ }
+}