cef/tests/unittests/stream_unittest.cc

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// Copyright (c) 2009 The Chromium Embedded Framework 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 "include/cef_stream.h"
#include "testing/gtest/include/gtest/gtest.h"
static void VerifyStreamReadBehavior(CefRefPtr<CefStreamReader> stream,
const std::string& contents) {
int contentSize = static_cast<int>(contents.size());
const char* contentStr = contents.c_str();
// Move to the beginning of the stream
ASSERT_EQ(0, stream->Seek(0, SEEK_SET));
ASSERT_EQ(0, stream->Tell());
// Move to the end of the stream
ASSERT_EQ(0, stream->Seek(0, SEEK_END));
ASSERT_EQ(contentSize, stream->Tell());
// Move to the beginning of the stream
ASSERT_EQ(0, stream->Seek(-contentSize, SEEK_CUR));
ASSERT_EQ(0, stream->Tell());
// Read 10 characters at a time and verify the result
char buff[10];
int res, read, offset = 0;
do {
read = std::min(static_cast<int>(sizeof(buff)), contentSize-offset);
res = static_cast<int>(stream->Read(buff, 1, read));
ASSERT_EQ(read, res);
ASSERT_TRUE(!memcmp(contentStr+offset, buff, res));
offset += res;
} while (offset < contentSize);
// Read past the end of the file
stream->Read(buff, 1, 1);
ASSERT_TRUE(stream->Eof());
}
static void VerifyStreamWriteBehavior(CefRefPtr<CefStreamWriter> stream,
const std::string& contents) {
int contentSize = static_cast<int>(contents.size());
const char* contentStr = contents.c_str();
// Write 10 characters at a time and verify the result
int res, write, offset = 0;
do {
write = std::min(10, contentSize-offset);
res = static_cast<int>(stream->Write(contentStr+offset, 1, write));
ASSERT_EQ(write, res);
offset += res;
ASSERT_EQ(offset, stream->Tell());
} while (offset < contentSize);
// Move to the beginning of the stream
ASSERT_EQ(0, stream->Seek(-contentSize, SEEK_CUR));
ASSERT_EQ(0, stream->Tell());
// Move to the end of the stream
ASSERT_EQ(0, stream->Seek(0, SEEK_END));
ASSERT_EQ(contentSize, stream->Tell());
// Move to the beginning of the stream
ASSERT_EQ(0, stream->Seek(0, SEEK_SET));
ASSERT_EQ(0, stream->Tell());
}
TEST(StreamTest, ReadFile) {
const char* fileName = "StreamTest.VerifyReadFile.txt";
CefString fileNameStr = "StreamTest.VerifyReadFile.txt";
std::string contents = "This is my test\ncontents for the file";
// Create the file
FILE* f = NULL;
#ifdef _WIN32
fopen_s(&f, fileName, "wb");
#else
f = fopen(fileName, "wb");
#endif
ASSERT_TRUE(f != NULL);
ASSERT_EQ((size_t)1, fwrite(contents.c_str(), contents.size(), 1, f));
fclose(f);
// Test the stream
CefRefPtr<CefStreamReader> stream(
CefStreamReader::CreateForFile(fileNameStr));
ASSERT_TRUE(stream.get() != NULL);
VerifyStreamReadBehavior(stream, contents);
// Release the file pointer
stream = NULL;
// Delete the file
#ifdef _WIN32
ASSERT_EQ(0, _unlink(fileName));
#else
ASSERT_EQ(0, unlink(fileName));
#endif
}
TEST(StreamTest, ReadData) {
std::string contents = "This is my test\ncontents for the file";
// Test the stream
CefRefPtr<CefStreamReader> stream(
CefStreamReader::CreateForData(
static_cast<void*>(const_cast<char*>(contents.c_str())),
contents.size()));
ASSERT_TRUE(stream.get() != NULL);
VerifyStreamReadBehavior(stream, contents);
}
TEST(StreamTest, WriteFile) {
const char* fileName = "StreamTest.VerifyWriteFile.txt";
CefString fileNameStr = "StreamTest.VerifyWriteFile.txt";
std::string contents = "This is my test\ncontents for the file";
// Test the stream
CefRefPtr<CefStreamWriter> stream(
CefStreamWriter::CreateForFile(fileNameStr));
ASSERT_TRUE(stream.get() != NULL);
VerifyStreamWriteBehavior(stream, contents);
// Release the file pointer
stream = NULL;
// Read the file that was written
FILE* f = NULL;
char* buff = new char[contents.size()];
#ifdef _WIN32
fopen_s(&f, fileName, "rb");
#else
f = fopen(fileName, "rb");
#endif
ASSERT_TRUE(f != NULL);
ASSERT_EQ((size_t)1, fread(buff, contents.size(), 1, f));
// Read past the end of the file
fgetc(f);
ASSERT_TRUE(feof(f));
fclose(f);
// Verify the file contents
ASSERT_TRUE(!memcmp(contents.c_str(), buff, contents.size()));
delete [] buff;
// Delete the file
#ifdef _WIN32
ASSERT_EQ(0, _unlink(fileName));
#else
ASSERT_EQ(0, unlink(fileName));
#endif
}
bool g_ReadHandlerTesterDeleted = false;
class ReadHandlerTester : public CefReadHandler {
public:
ReadHandlerTester()
: read_called_(false),
read_ptr_(NULL),
read_size_(0),
read_n_(0),
seek_called_(false),
seek_offset_(0),
seek_whence_(0),
tell_called_(false),
eof_called_(false) {
}
virtual ~ReadHandlerTester() {
g_ReadHandlerTesterDeleted = true;
}
virtual size_t Read(void* ptr, size_t size, size_t n) {
read_called_ = true;
read_ptr_ = ptr;
read_size_ = size;
read_n_ = n;
return 10;
}
virtual int Seek(int64 offset, int whence) {
seek_called_ = true;
seek_offset_ = offset;
seek_whence_ = whence;
return 10;
}
virtual int64 Tell() {
tell_called_ = true;
return 10;
}
virtual int Eof() {
eof_called_ = true;
return 10;
}
bool read_called_;
const void* read_ptr_;
size_t read_size_;
size_t read_n_;
bool seek_called_;
int64 seek_offset_;
int seek_whence_;
bool tell_called_;
bool eof_called_;
IMPLEMENT_REFCOUNTING(ReadHandlerTester);
};
TEST(StreamTest, ReadHandler) {
ReadHandlerTester* handler = new ReadHandlerTester();
ASSERT_TRUE(handler != NULL);
CefRefPtr<CefStreamReader> stream(CefStreamReader::CreateForHandler(handler));
ASSERT_TRUE(stream.get() != NULL);
// CefReadHandler Read
const char* read_ptr = "My data";
size_t read_size = sizeof(read_ptr);
size_t read_n = 1;
size_t read_res = stream->Read(
static_cast<void*>(const_cast<char*>(read_ptr)), read_size, read_n);
ASSERT_TRUE(handler->read_called_);
ASSERT_EQ((size_t)10, read_res);
ASSERT_EQ(read_ptr, handler->read_ptr_);
ASSERT_EQ(read_size, handler->read_size_);
ASSERT_EQ(read_n, handler->read_n_);
// CefReadHandler Seek
int64 seek_offset = 10;
int seek_whence = SEEK_CUR;
int seek_res = stream->Seek(seek_offset, seek_whence);
ASSERT_TRUE(handler->seek_called_);
ASSERT_EQ(10, seek_res);
ASSERT_EQ(seek_offset, handler->seek_offset_);
ASSERT_EQ(seek_whence, handler->seek_whence_);
// CefReadHandler Tell
int64 tell_res = stream->Tell();
ASSERT_TRUE(handler->tell_called_);
ASSERT_EQ(10, tell_res);
// CefReadHandler Eof
int eof_res = stream->Eof();
ASSERT_TRUE(handler->eof_called_);
ASSERT_EQ(10, eof_res);
// Delete the stream
stream = NULL;
// Verify that the handler object was deleted
ASSERT_TRUE(g_ReadHandlerTesterDeleted);
}
bool g_WriteHandlerTesterDeleted = false;
class WriteHandlerTester : public CefWriteHandler {
public:
WriteHandlerTester()
: write_called_(false),
write_ptr_(NULL),
write_size_(0),
write_n_(0),
seek_called_(false),
seek_offset_(0),
seek_whence_(0),
tell_called_(false),
flush_called_(false) {
}
virtual ~WriteHandlerTester() {
g_WriteHandlerTesterDeleted = true;
}
virtual size_t Write(const void* ptr, size_t size, size_t n) {
write_called_ = true;
write_ptr_ = ptr;
write_size_ = size;
write_n_ = n;
return 10;
}
virtual int Seek(int64 offset, int whence) {
seek_called_ = true;
seek_offset_ = offset;
seek_whence_ = whence;
return 10;
}
virtual int64 Tell() {
tell_called_ = true;
return 10;
}
virtual int Flush() {
flush_called_ = true;
return 10;
}
bool write_called_;
const void* write_ptr_;
size_t write_size_;
size_t write_n_;
bool seek_called_;
int64 seek_offset_;
int seek_whence_;
bool tell_called_;
bool flush_called_;
IMPLEMENT_REFCOUNTING(WriteHandlerTester);
};
TEST(StreamTest, WriteHandler) {
WriteHandlerTester* handler = new WriteHandlerTester();
ASSERT_TRUE(handler != NULL);
CefRefPtr<CefStreamWriter> stream(CefStreamWriter::CreateForHandler(handler));
ASSERT_TRUE(stream.get() != NULL);
// CefWriteHandler Write
const char* write_ptr = "My data";
size_t write_size = sizeof(write_ptr);
size_t write_n = 1;
size_t write_res = stream->Write(write_ptr, write_size, write_n);
ASSERT_TRUE(handler->write_called_);
ASSERT_EQ((size_t)10, write_res);
ASSERT_EQ(write_ptr, handler->write_ptr_);
ASSERT_EQ(write_size, handler->write_size_);
ASSERT_EQ(write_n, handler->write_n_);
// CefWriteHandler Seek
int64 seek_offset = 10;
int seek_whence = SEEK_CUR;
int seek_res = stream->Seek(seek_offset, seek_whence);
ASSERT_TRUE(handler->seek_called_);
ASSERT_EQ(10, seek_res);
ASSERT_EQ(seek_offset, handler->seek_offset_);
ASSERT_EQ(seek_whence, handler->seek_whence_);
// CefWriteHandler Tell
int64 tell_res = stream->Tell();
ASSERT_TRUE(handler->tell_called_);
ASSERT_EQ(10, tell_res);
// CefWriteHandler Flush
int flush_res = stream->Flush();
ASSERT_TRUE(handler->flush_called_);
ASSERT_EQ(10, flush_res);
// Delete the stream
stream = NULL;
// Verify that the handler object was deleted
ASSERT_TRUE(g_WriteHandlerTesterDeleted);
}