Split code generation from the ui

tests/tester.cpp

@@ -0,0 +1,156 @@
+#include <boost/process.hpp>
+
+#include <filesystem>
+#include <iostream>
+#include "elna/tester.hpp"
+
+namespace elna
+{
+    std::uint32_t test_results::total() const noexcept
+    {
+        return m_total;
+    }
+
+    std::uint32_t test_results::passed() const noexcept
+    {
+        return m_passed;
+    }
+
+    std::uint32_t test_results::failed() const noexcept
+    {
+        return m_total - m_passed;
+    }
+
+    int test_results::exit_code() const noexcept
+    {
+        return m_total == m_passed ? EXIT_SUCCESS : EXIT_FAILURE;
+    }
+
+    void test_results::add_exit_code(const int exit_code) noexcept
+    {
+        ++m_total;
+        if (exit_code == 0)
+        {
+            ++m_passed;
+        }
+    }
+
+    static std::filesystem::path in_build_directory()
+    {
+        return "build/riscv";
+    }
+
+    static std::string in_build_directory(const std::filesystem::path& path)
+    {
+        return in_build_directory() / path;
+    }
+
+    static int build_test(const std::filesystem::directory_entry& test_entry)
+    {
+        const std::filesystem::path test_filename = test_entry.path().filename();
+
+        std::filesystem::path test_binary = in_build_directory(test_filename);
+        std::filesystem::path test_object = test_binary;
+        test_binary.replace_extension();
+        test_object.replace_extension(".o");
+
+        std::filesystem::remove(test_binary);
+        std::filesystem::remove(test_object);
+
+        auto status = boost::process::system("./build/bin/elna",
+                "-o", test_object.string(), test_entry.path().string());
+        if (status != 0)
+        {
+            return status;
+        }
+        status = boost::process::system(
+                "/opt/riscv/bin/riscv32-unknown-elf-ld",
+                "-o", test_binary.string(),
+                "-L/opt/riscv/lib/gcc/riscv32-unknown-elf/13.2.0/",
+                "-L/opt/riscv/riscv32-unknown-elf/lib",
+                "/opt/riscv/riscv32-unknown-elf/lib/crt0.o",
+                "/opt/riscv/lib/gcc/riscv32-unknown-elf/13.2.0/crtbegin.o",
+               test_object.string(),
+                "--start-group", "-lgcc", "-lc", "-lgloss", "--end-group",
+                "/opt/riscv/lib/gcc/riscv32-unknown-elf/13.2.0/crtend.o"
+        );
+        return status;
+    }
+
+    static int run_test(const std::filesystem::directory_entry& test_entry)
+    {
+        const std::filesystem::path test_filename = test_entry.path().filename();
+
+        std::filesystem::path test_binary = in_build_directory(test_filename);
+        test_binary.replace_extension();
+
+        std::filesystem::path expectation_path = test_entry.path().parent_path() / "expectations" / test_filename;
+        expectation_path.replace_extension(".txt");
+
+        std::cout << "Running " << test_binary << std::endl;
+
+        boost::process::pipe pipe_stream;
+        boost::process::child vm(
+            "/opt/riscv/bin/spike", "--isa=RV32IMAC",
+            "/opt/riscv/riscv32-unknown-elf/bin/pk",
+            test_binary.string(),
+            boost::process::std_out > pipe_stream
+        );
+        boost::process::child diff(
+                "/usr/bin/diff", "-Nur", "--color",
+                expectation_path.string(), "-",
+                boost::process::std_in < pipe_stream
+        );
+        vm.wait();
+        diff.wait();
+
+        return diff.exit_code();
+    }
+
+    static test_results run_in_path(const std::filesystem::path test_directory)
+    {
+        test_results results;
+
+        for (const auto& test_entry : std::filesystem::directory_iterator(test_directory))
+        {
+            if (test_entry.path().extension() != ".eln" || !test_entry.is_regular_file())
+            {
+                continue;
+            }
+            int status{ 0 };
+
+            try
+            {
+                status = build_test(test_entry);
+            }
+            catch (const boost::process::process_error& exception)
+            {
+                std::cout << exception.what() << std::endl;
+                status = 3;
+                continue;
+            }
+            if (status == 0)
+            {
+                status = run_test(test_entry);
+            }
+            results.add_exit_code(status);
+        }
+        return results;
+    }
+};
+
+int main()
+{
+    std::filesystem::create_directory(elna::in_build_directory());
+
+    std::cout << "Run all tests and check the results" << std::endl;
+    std::filesystem::path test_directory{ "tests" };
+    const auto results = elna::run_in_path(test_directory);
+
+    std::cout << std::endl;
+    std::cout << results.total() << " tests run, "
+        << results.passed() << " passed, "
+        << results.failed() << " failed." << std::endl;
+
+    return results.exit_code();
+}