thrift/test/TMemoryBufferTest.cpp
David Reiss f7baf549bc Thrift: Revamp TMemoryBuffer constructors.
Summary:
There were some weird cases where the implicit conversion from
const char* to std::string was causing the wrong constructor to be called.
There wasn't really a clean workaround, so we're dropping the string
constructors.

Reviewed By: mcslee

Test Plan:
Ran the test.
Grepped around the /projects tree for uses that had to fixed,
and fixed them.

Revert Plan: ok

Other Notes:
This risk was pointed out by Ben Maurer.


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665461 13f79535-47bb-0310-9956-ffa450edef68
2008-02-04 21:56:27 +00:00

95 lines
2.6 KiB
C++

/*
thrift -cpp ThriftTest.thrift
g++ -Wall -g -I../lib/cpp/src -I/usr/local/include/boost-1_33_1 \
TMemoryBufferTest.cpp gen-cpp/ThriftTest_types.cpp \
../lib/cpp/.libs/libthrift.a -o TMemoryBufferTest
./TMemoryBufferTest
*/
#include <iostream>
#include <climits>
#include <cassert>
#include <transport/TTransportUtils.h>
#include <protocol/TBinaryProtocol.h>
#include "gen-cpp/ThriftTest_types.h"
int main(int argc, char** argv) {
{
using facebook::thrift::transport::TMemoryBuffer;
using facebook::thrift::protocol::TBinaryProtocol;
using boost::shared_ptr;
shared_ptr<TMemoryBuffer> strBuffer(new TMemoryBuffer());
shared_ptr<TBinaryProtocol> binaryProtcol(new TBinaryProtocol(strBuffer));
thrift::test::Xtruct a;
a.i32_thing = 10;
a.i64_thing = 30;
a.string_thing ="holla back a";
a.write(binaryProtcol.get());
std::string serialized = strBuffer->getBufferAsString();
shared_ptr<TMemoryBuffer> strBuffer2(new TMemoryBuffer());
shared_ptr<TBinaryProtocol> binaryProtcol2(new TBinaryProtocol(strBuffer2));
strBuffer2->resetBuffer((uint8_t*)serialized.data(), serialized.length());
thrift::test::Xtruct a2;
a2.read(binaryProtcol2.get());
assert(a == a2);
}
{
using facebook::thrift::transport::TMemoryBuffer;
using std::string;
using std::cout;
using std::endl;
string* str1 = new string("abcd1234");
const char* data1 = str1->data();
TMemoryBuffer buf((uint8_t*)str1->data(), str1->length(), TMemoryBuffer::COPY);
delete str1;
string* str2 = new string("plsreuse");
bool obj_reuse = (str1 == str2);
bool dat_reuse = (data1 == str2->data());
cout << "Object reuse: " << obj_reuse << " Data reuse: " << dat_reuse
<< ((obj_reuse && dat_reuse) ? " YAY!" : "") << endl;
delete str2;
string str3 = "wxyz", str4 = "6789";
buf.readAppendToString(str3, 4);
buf.readAppendToString(str4, INT_MAX);
assert(str3 == "wxyzabcd");
assert(str4 == "67891234");
}
{
using facebook::thrift::transport::TTransportException;
using facebook::thrift::transport::TMemoryBuffer;
using std::string;
char data[] = "foo\0bar";
TMemoryBuffer buf1((uint8_t*)data, 7, TMemoryBuffer::OBSERVE);
string str = buf1.getBufferAsString();
assert(str.length() == 7);
buf1.resetBuffer();
try {
buf1.write((const uint8_t*)"foo", 3);
assert(false);
} catch (TTransportException& ex) {}
TMemoryBuffer buf2((uint8_t*)data, 7, TMemoryBuffer::COPY);
try {
buf2.write((const uint8_t*)"bar", 3);
} catch (TTransportException& ex) {
assert(false);
}
}
}