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#include <algorithm>
#include <csignal>
#include <functional>
#include <iostream>
#include <sstream>
#include <string>
#include <vector>
#include <cm/memory>
#include <cm3p/uv.h>
#include "cmGetPipes.h"
#include "cmUVHandlePtr.h"
#include "cmUVProcessChain.h"
#include "cmUVStreambuf.h"
struct ExpectedStatus
{
bool Finished;
bool MatchExitStatus;
bool MatchTermSignal;
cmUVProcessChain::Status Status;
};
static const std::vector<ExpectedStatus> status1 = {
{ false, false, false, { 0, 0 } },
{ false, false, false, { 0, 0 } },
{ false, false, false, { 0, 0 } },
};
static const std::vector<ExpectedStatus> status2 = {
{ true, true, true, { 0, 0 } },
{ false, false, false, { 0, 0 } },
{ false, false, false, { 0, 0 } },
};
static const std::vector<ExpectedStatus> status3 = {
{ true, true, true, { 0, 0 } },
{ true, true, true, { 1, 0 } },
#ifdef _WIN32
{ true, true, true, { 2, 0 } },
#else
{ true, false, true, { 0, SIGABRT } },
#endif
};
bool operator==(const cmUVProcessChain::Status* actual,
const ExpectedStatus& expected)
{
if (!expected.Finished) {
return !actual;
} else if (!actual) {
return false;
}
if (expected.MatchExitStatus &&
expected.Status.ExitStatus != actual->ExitStatus) {
return false;
}
if (expected.MatchTermSignal &&
expected.Status.TermSignal != actual->TermSignal) {
return false;
}
return true;
}
bool resultsMatch(const std::vector<const cmUVProcessChain::Status*>& actual,
const std::vector<ExpectedStatus>& expected)
{
return actual.size() == expected.size() &&
std::equal(actual.begin(), actual.end(), expected.begin());
}
std::string getInput(std::istream& input)
{
char buffer[1024];
std::ostringstream str;
do {
input.read(buffer, 1024);
str.write(buffer, input.gcount());
} while (input.gcount() > 0);
return str.str();
}
template <typename T>
std::function<std::ostream&(std::ostream&)> printExpected(bool match,
const T& value)
{
return [match, value](std::ostream& stream) -> std::ostream& {
if (match) {
stream << value;
} else {
stream << "*";
}
return stream;
};
}
std::ostream& operator<<(
std::ostream& stream,
const std::function<std::ostream&(std::ostream&)>& func)
{
return func(stream);
}
void printResults(const std::vector<const cmUVProcessChain::Status*>& actual,
const std::vector<ExpectedStatus>& expected)
{
std::cout << "Expected: " << std::endl;
for (auto const& e : expected) {
if (e.Finished) {
std::cout << " ExitStatus: "
<< printExpected(e.MatchExitStatus, e.Status.ExitStatus)
<< ", TermSignal: "
<< printExpected(e.MatchTermSignal, e.Status.TermSignal)
<< std::endl;
} else {
std::cout << " null" << std::endl;
}
}
std::cout << "Actual:" << std::endl;
for (auto const& a : actual) {
if (a) {
std::cout << " ExitStatus: " << a->ExitStatus
<< ", TermSignal: " << a->TermSignal << std::endl;
} else {
std::cout << " null" << std::endl;
}
}
}
bool checkExecution(cmUVProcessChainBuilder& builder,
std::unique_ptr<cmUVProcessChain>& chain)
{
std::vector<const cmUVProcessChain::Status*> status;
chain = cm::make_unique<cmUVProcessChain>(builder.Start());
if (!chain->Valid()) {
std::cout << "Valid() returned false, should be true" << std::endl;
return false;
}
status = chain->GetStatus();
if (!resultsMatch(status, status1)) {
std::cout << "GetStatus() did not produce expected output" << std::endl;
printResults(status, status1);
return false;
}
if (chain->Wait(6000)) {
std::cout << "Wait() returned true, should be false" << std::endl;
return false;
}
status = chain->GetStatus();
if (!resultsMatch(status, status2)) {
std::cout << "GetStatus() did not produce expected output" << std::endl;
printResults(status, status2);
return false;
}
if (!chain->Wait()) {
std::cout << "Wait() returned false, should be true" << std::endl;
return false;
}
status = chain->GetStatus();
if (!resultsMatch(status, status3)) {
std::cout << "GetStatus() did not produce expected output" << std::endl;
printResults(status, status3);
return false;
}
return true;
}
bool checkOutput(std::istream& outputStream, std::istream& errorStream)
{
std::string output = getInput(outputStream);
if (output != "HELO WRD!") {
std::cout << "Output was \"" << output << "\", expected \"HELO WRD!\""
<< std::endl;
return false;
}
std::string error = getInput(errorStream);
if (error.length() != 3 || error.find('1') == std::string::npos ||
error.find('2') == std::string::npos ||
error.find('3') == std::string::npos) {
std::cout << "Error was \"" << error << "\", expected \"123\""
<< std::endl;
return false;
}
return true;
}
bool testUVProcessChainBuiltin(const char* helperCommand)
{
cmUVProcessChainBuilder builder;
std::unique_ptr<cmUVProcessChain> chain;
builder.AddCommand({ helperCommand, "echo" })
.AddCommand({ helperCommand, "capitalize" })
.AddCommand({ helperCommand, "dedup" })
.SetBuiltinStream(cmUVProcessChainBuilder::Stream_OUTPUT)
.SetBuiltinStream(cmUVProcessChainBuilder::Stream_ERROR);
if (!checkExecution(builder, chain)) {
return false;
}
if (!chain->OutputStream()) {
std::cout << "OutputStream() was null, expecting not null" << std::endl;
return false;
}
if (!chain->ErrorStream()) {
std::cout << "ErrorStream() was null, expecting not null" << std::endl;
return false;
}
if (!checkOutput(*chain->OutputStream(), *chain->ErrorStream())) {
return false;
}
return true;
}
bool testUVProcessChainExternal(const char* helperCommand)
{
cmUVProcessChainBuilder builder;
std::unique_ptr<cmUVProcessChain> chain;
int outputPipe[2], errorPipe[2];
cm::uv_pipe_ptr outputInPipe, outputOutPipe, errorInPipe, errorOutPipe;
if (cmGetPipes(outputPipe) < 0) {
std::cout << "Error creating pipes" << std::endl;
return false;
}
if (cmGetPipes(errorPipe) < 0) {
std::cout << "Error creating pipes" << std::endl;
return false;
}
builder.AddCommand({ helperCommand, "echo" })
.AddCommand({ helperCommand, "capitalize" })
.AddCommand({ helperCommand, "dedup" })
.SetExternalStream(cmUVProcessChainBuilder::Stream_OUTPUT, outputPipe[1])
.SetExternalStream(cmUVProcessChainBuilder::Stream_ERROR, errorPipe[1]);
if (!checkExecution(builder, chain)) {
return false;
}
if (chain->OutputStream()) {
std::cout << "OutputStream() was not null, expecting null" << std::endl;
return false;
}
if (chain->ErrorStream()) {
std::cout << "ErrorStream() was not null, expecting null" << std::endl;
return false;
}
outputOutPipe.init(chain->GetLoop(), 0);
uv_pipe_open(outputOutPipe, outputPipe[1]);
outputOutPipe.reset();
errorOutPipe.init(chain->GetLoop(), 0);
uv_pipe_open(errorOutPipe, errorPipe[1]);
errorOutPipe.reset();
outputInPipe.init(chain->GetLoop(), 0);
uv_pipe_open(outputInPipe, outputPipe[0]);
cmUVStreambuf outputBuf;
outputBuf.open(outputInPipe);
std::istream outputStream(&outputBuf);
errorInPipe.init(chain->GetLoop(), 0);
uv_pipe_open(errorInPipe, errorPipe[0]);
cmUVStreambuf errorBuf;
errorBuf.open(errorInPipe);
std::istream errorStream(&errorBuf);
if (!checkOutput(outputStream, errorStream)) {
return false;
}
return true;
}
bool testUVProcessChainNone(const char* helperCommand)
{
cmUVProcessChainBuilder builder;
std::unique_ptr<cmUVProcessChain> chain;
builder.AddCommand({ helperCommand, "echo" })
.AddCommand({ helperCommand, "capitalize" })
.AddCommand({ helperCommand, "dedup" });
if (!checkExecution(builder, chain)) {
return false;
}
if (chain->OutputStream()) {
std::cout << "OutputStream() was not null, expecting null" << std::endl;
return false;
}
if (chain->ErrorStream()) {
std::cout << "ErrorStream() was not null, expecting null" << std::endl;
return false;
}
return true;
}
int testUVProcessChain(int argc, char** const argv)
{
if (argc < 2) {
std::cout << "Invalid arguments.\n";
return -1;
}
if (!testUVProcessChainBuiltin(argv[1])) {
std::cout << "While executing testUVProcessChainBuiltin().\n";
return -1;
}
if (!testUVProcessChainExternal(argv[1])) {
std::cout << "While executing testUVProcessChainExternal().\n";
return -1;
}
if (!testUVProcessChainNone(argv[1])) {
std::cout << "While executing testUVProcessChainNone().\n";
return -1;
}
return 0;
}
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