初始化内容

third/cpp-subprocess/test/test_cat.cc

@@ -0,0 +1,74 @@
+#include <iostream>
+#include <cpp-subprocess/subprocess.hpp>
+
+namespace sp = subprocess;
+
+void test_cat_pipe_redirection()
+{
+  std::cout << "Test::test_cat_pipe_redirection" << std::endl;
+  auto p = sp::Popen({"cat", "-"}, sp::input{sp::PIPE}, sp::output{sp::PIPE});
+  auto msg = "through stdin to stdout";
+  auto res_buf = p.communicate(msg, strlen(msg)).first;
+  assert(res_buf.length == strlen(msg));
+  std::cout << "END_TEST" << std::endl;
+}
+
+void test_cat_file_redirection()
+{
+  std::cout << "Test::test_cat_file_redirection" << std::endl;
+  auto p = sp::Popen({"cat", "-"}, sp::input{sp::PIPE}, sp::output{"cat_fredirect.txt"});
+  auto msg = "through stdin to stdout";
+  int wr_bytes = p.send(msg, strlen(msg));
+  assert (wr_bytes == (int)strlen(msg));
+  std::cout << "END_TEST" << std::endl;
+}
+
+void test_cat_send_terminate()
+{
+  std::cout << "Test::test_cat_send_terminate" << std::endl;
+  std::vector<sp::Popen> pops;
+
+  for (int i=0; i < 5; i++) {
+    pops.emplace_back(sp::Popen({"cat", "-"}, sp::input{sp::PIPE}));
+    pops[i].send("3 5\n", 5);
+    pops[i].close_input();
+  }
+
+  for (int i=0; i < 5; i++) {
+    pops[i].wait();
+  }
+
+  std::cout << "END_TEST" << std::endl;
+}
+
+void test_buffer_growth()
+{
+  auto obuf = sp::check_output({"cat", "../subprocess.hpp"});
+  std::cout << obuf.length << std::endl;
+  assert (obuf.length > sp::DEFAULT_BUF_CAP_BYTES);
+}
+
+void test_buffer_growth_threaded_comm()
+{
+  std::cout << "Test::test_buffer_growth_threaded_comm" << std::endl;
+  auto buf = sp::check_output("cat ../subprocess.hpp", sp::error{sp::PIPE});
+  std::cout << buf.length << std::endl;
+  assert (buf.length > sp::DEFAULT_BUF_CAP_BYTES);
+  std::cout << "END_TEST" << std::endl;
+}
+
+int main() {
+#ifndef __USING_WINDOWS__
+
+  // test_cat_pipe_redirection();
+  test_cat_send_terminate();
+  /*
+  test_cat_file_redirection();
+  test_buffer_growth();
+  test_buffer_growth_threaded_comm();
+  */
+
+#endif
+
+  return 0;
+}