rework Process API & tests

* Add separate classes ProcessParameters & ShellParameters for
Process::create() and Process::shell() methods.
* Add a separate "worker" executable. It's used in tests via a fairly
complicated scheme, receiving orders to execute via a shared memory
region.
* Add tests that utilize the Console API, reading console window's
screen buffer directly, making for more reliable tests & broader
coverage.

1 files changed, 40 insertions, 0 deletions

diff --git a/test/unit_tests/console.cpp b/test/unit_tests/console.cpp
new file mode 100644
index 0000000..9eb787c
--- /dev/null
+++ b/test/unit_tests/console.cpp
@@ -0,0 +1,40 @@
+// Copyright (c) 2020 Egor Tensin <Egor.Tensin@gmail.com>
+// This file is part of the "winapi-common" project.
+// For details, see https://github.com/egor-tensin/winapi-common.
+// Distributed under the MIT License.
+
+#include "shared/console.hpp"
+
+#include <boost/test/unit_test.hpp>
+
+#include <iostream>
+#include <string>
+#include <vector>
+
+BOOST_AUTO_TEST_SUITE(console_tests)
+
+BOOST_AUTO_TEST_CASE(read_last_lines) {
+    std::cout << "abc\ndef" << std::endl;
+    console::Buffer buffer;
+    const auto last = buffer.read_last_line();
+    const auto last2 = buffer.read_last_lines(2);
+    const std::string expected{"def"};
+    const std::vector<std::string> expected2{"abc", "def"};
+    BOOST_TEST(last == expected);
+    BOOST_TEST(last2 == expected2);
+}
+
+BOOST_AUTO_TEST_CASE(read_last_lines_overflow) {
+    console::Buffer buffer;
+    const std::string output(buffer.get_columns() + 5, 'X');
+    std::cout << output << std::endl;
+    buffer.update();
+    const auto last = buffer.read_last_lines(1);
+    const auto last2 = buffer.read_last_lines(2);
+    const std::vector<std::string> expected{"XXXXX"};
+    const std::vector<std::string> expected2{std::string(buffer.get_columns(), 'X'), "XXXXX"};
+    BOOST_TEST(last == expected);
+    BOOST_TEST(last2 == expected2);
+}
+
+BOOST_AUTO_TEST_SUITE_END()