kernel/tests: dissolve tests into source tree

12 files changed, 0 insertions, 458 deletions

diff --git a/kernel/tests/CMakeLists.txt b/kernel/tests/CMakeLists.txt
deleted file mode 100644
index 0855520..0000000
--- a/kernel/tests/CMakeLists.txt
+++ /dev/null
@@ -1,64 +0,0 @@
-#[============================================================================[
-# Kernel Test Support (Fakes, Stubs, Mocks, etc.)
-#]============================================================================]
-
-add_library("kernel_test_support"
-    "kapi/cio.cpp"
-    "kapi/cpu.cpp"
-    "kapi/interrupts.cpp"
-    "kapi/memory.cpp"
-    
-    "src/log_buffer.cpp"
-    "src/main.cpp"
-    "src/simulated_memory.cpp"
-)
-
-file(GLOB_RECURSE KERNEL_TEST_SUPPORT_HEADERS RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "include/**.hpp")
-
-target_sources("kernel_test_support" PUBLIC
-    FILE_SET HEADERS
-    BASE_DIRS "include"
-    FILES
-    ${KERNEL_TEST_SUPPORT_HEADERS}
-)
-
-target_include_directories("kernel_test_support" PUBLIC
-    "include"
-)
-
-target_link_libraries("kernel_test_support" PUBLIC
-    "os::kapi"
-    "os::kernel"
-    "Catch2::Catch2"
-)
-
-add_library("os::kernel_test_support" ALIAS "kernel_test_support")
-
-#[============================================================================[
-# Kernel Tests
-#]============================================================================]
-
-add_executable("kernel_tests"
-    "src/test_support.tests.cpp"
-)
-
-target_include_directories("kernel_tests" PRIVATE
-    "include"
-)
-
-target_link_libraries("kernel_tests" PRIVATE
-    "os::kernel_test_support"
-    "libs::kstd"
-)
-
-set_target_properties("kernel_tests" PROPERTIES
-    C_CLANG_TIDY ""
-    CXX_CLANG_TIDY ""
-    EXCLUDE_FROM_ALL NO
-)
-
-enable_coverage("kernel_tests")
-
-add_executable("os::kernel_tests" ALIAS "kernel_tests")
-
-catch_discover_tests("os::kernel_tests")
\ No newline at end of file
diff --git a/kernel/tests/include/kernel/tests/cpu.hpp b/kernel/tests/include/kernel/tests/cpu.hpp
deleted file mode 100644
index 81c0c6f..0000000
--- a/kernel/tests/include/kernel/tests/cpu.hpp
+++ /dev/null
@@ -1,18 +0,0 @@
-#ifndef TEACHOS_KERNEL_TESTS_CPU_HPP
-#define TEACHOS_KERNEL_TESTS_CPU_HPP
-
-#include <stdexcept>
-
-namespace kernel::tests::cpu
-{
-
-  struct halt : std::runtime_error
-  {
-    halt()
-        : std::runtime_error{"CPU halt requested!"}
-    {}
-  };
-
-}  // namespace kernel::tests::cpu
-
-#endif
\ No newline at end of file
diff --git a/kernel/tests/include/kernel/tests/log_buffer.hpp b/kernel/tests/include/kernel/tests/log_buffer.hpp
deleted file mode 100644
index 5f2a1a7..0000000
--- a/kernel/tests/include/kernel/tests/log_buffer.hpp
+++ /dev/null
@@ -1,32 +0,0 @@
-#ifndef KERNEL_TESTS_LOG_BUFFER_HPP
-#define KERNEL_TESTS_LOG_BUFFER_HPP
-
-#include <string>
-#include <vector>
-
-namespace kernel::tests::log_buffer
-{
-
-  //! Append a message to the testing log buffer.
-  //!
-  //! @param message The message to append.
-  auto append(std::string const & message) -> void;
-
-  //! Clear the testing log buffer.
-  auto clear() -> void;
-
-  //! Get the testing log buffer as a single string.
-  //!
-  //! @return The testing log buffer as a single string.
-  auto flat_messages() -> std::string;
-
-  //! Get the testing log buffer.
-  //!
-  //! @note Messages may be split across multiple entries if they are longer than the internal kernel print buffer size.
-  //!
-  //! @return The testing log buffer.
-  auto messages() -> std::vector<std::string> const &;
-
-}  // namespace kernel::tests::log_buffer
-
-#endif
\ No newline at end of file
diff --git a/kernel/tests/include/kernel/tests/simulated_memory.hpp b/kernel/tests/include/kernel/tests/simulated_memory.hpp
deleted file mode 100644
index 156b1e1..0000000
--- a/kernel/tests/include/kernel/tests/simulated_memory.hpp
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef TEACHOS_KERNEL_TESTS_SIMULATED_MEMORY_HPP
-#define TEACHOS_KERNEL_TESTS_SIMULATED_MEMORY_HPP
-
-#include <kstd/units>
-
-#include <cstddef>
-
-namespace kernel::tests::simulated_memory
-{
-
-  auto init(kstd::units::bytes size) -> void;
-
-  auto pmm_metadata_base() -> std::byte *;
-
-  auto ram_base() -> std::byte *;
-
-}  // namespace kernel::tests::simulated_memory
-
-#endif
\ No newline at end of file
diff --git a/kernel/tests/kapi/cio.cpp b/kernel/tests/kapi/cio.cpp
deleted file mode 100644
index 6359fa8..0000000
--- a/kernel/tests/kapi/cio.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-#include <kapi/cio.hpp>
-
-#include "kernel/tests/log_buffer.hpp"
-
-#include <iostream>
-#include <string>
-#include <string_view>
-
-namespace kapi::cio
-{
-
-  namespace
-  {
-
-    class test_output_device : public output_device
-    {
-    public:
-      test_output_device() = default;
-
-      auto write(output_stream stream, std::string_view text) -> void override
-      {
-        auto & standard_stream = stream == output_stream::stdout ? std::cout : std::cerr;
-        standard_stream << text;
-        if (text != "\n")
-        {
-          kernel::tests::log_buffer::append(std::string{text});
-        }
-      }
-    } device{};
-
-  }  // namespace
-
-  auto init() -> void
-  {
-    set_output_device(device);
-  }
-
-}  // namespace kapi::cio
\ No newline at end of file
diff --git a/kernel/tests/kapi/cpu.cpp b/kernel/tests/kapi/cpu.cpp
deleted file mode 100644
index 3ecaadc..0000000
--- a/kernel/tests/kapi/cpu.cpp
+++ /dev/null
@@ -1,29 +0,0 @@
-#include "kernel/tests/cpu.hpp"
-
-#include <kapi/cpu.hpp>
-
-#include <atomic>
-#include <stdexcept>
-
-namespace kapi::cpu
-{
-
-  auto init() -> void
-  {
-    auto static initialized = std::atomic_flag{};
-    if (initialized.test_and_set())
-    {
-      throw std::logic_error("kapi::cpu::init() called more than once");
-    }
-
-    // TODO: make sure that simulated interrupt can run.
-
-    return;
-  }
-
-  auto halt() -> void
-  {
-    throw kernel::tests::cpu::halt{};
-  }
-
-}  // namespace kapi::cpu
\ No newline at end of file
diff --git a/kernel/tests/kapi/interrupts.cpp b/kernel/tests/kapi/interrupts.cpp
deleted file mode 100644
index 0077266..0000000
--- a/kernel/tests/kapi/interrupts.cpp
+++ /dev/null
@@ -1,11 +0,0 @@
-#include <kapi/interrupts.hpp>
-
-namespace kapi::interrupts
-{
-
-  auto enable() -> void
-  {
-    // TODO: enable simulated interrupts.
-  }
-
-}  // namespace kapi::interrupts
\ No newline at end of file
diff --git a/kernel/tests/kapi/memory.cpp b/kernel/tests/kapi/memory.cpp
deleted file mode 100644
index 6de2f60..0000000
--- a/kernel/tests/kapi/memory.cpp
+++ /dev/null
@@ -1,86 +0,0 @@
-#include "kapi/memory.hpp"
-
-#include <kapi/memory.hpp>
-
-#include "kernel/tests/simulated_memory.hpp"
-
-#include <kstd/print>
-#include <kstd/units>
-
-#include <cstddef>
-#include <cstdint>
-#include <optional>
-#include <utility>
-
-namespace kapi::memory
-{
-
-  namespace
-  {
-    //! The size of the simulated RAM.
-    constexpr auto simulate_memory_size = kstd::units::MiB(32);
-
-    struct test_boostrap_frame_allocator : frame_allocator
-    {
-      auto mark_used(frame) -> void override {}
-
-      auto allocate_many(std::size_t count) noexcept -> std::optional<std::pair<frame, std::size_t>> override
-      {
-        auto start = next_free_frame;
-        next_free_frame += count;
-        return std::pair{frame{start}, count};
-      }
-
-      auto release_many(std::pair<frame, std::size_t>) -> void override {}
-
-      std::size_t next_free_frame{};
-    } boostrap_allocator;
-
-    struct test_page_mapper : page_mapper
-    {
-      auto map(page page, frame frame, flags flags) -> std::byte * override
-      {
-        kstd::println("mapping page {} onto frame {} with flags {}", page.number(), frame.number(),
-                      static_cast<std::uint64_t>(flags));
-
-        if ((page.start_address() & pmm_metadata_base.raw()) == pmm_metadata_base.raw())
-        {
-          auto offset = page.start_address() & ~pmm_metadata_base.raw();
-          return kernel::tests::simulated_memory::pmm_metadata_base() + offset;
-        }
-
-        return nullptr;
-      }
-
-      auto unmap(page page) -> void override
-      {
-        kstd::println("unmapping page {}", page.number());
-      }
-
-      auto try_unmap(page page) noexcept -> bool override
-      {
-        kstd::println("trying to unmap page {}", page.number());
-        return false;
-      }
-    } test_mapper;
-
-    auto handoff_to_kernel_pmm(frame_allocator & new_allocator) -> void
-    {
-      for (auto i = 0uz; i < boostrap_allocator.next_free_frame; ++i)
-      {
-        new_allocator.mark_used(frame{i});
-      }
-    }
-
-  }  // namespace
-
-  auto init() -> void
-  {
-    kernel::tests::simulated_memory::init(simulate_memory_size);
-    set_frame_allocator(boostrap_allocator);
-    set_page_mapper(test_mapper);
-
-    init_pmm(simulate_memory_size / frame::size, handoff_to_kernel_pmm);
-  }
-
-}  // namespace kapi::memory
\ No newline at end of file
diff --git a/kernel/tests/src/log_buffer.cpp b/kernel/tests/src/log_buffer.cpp
deleted file mode 100644
index 9e30afb..0000000
--- a/kernel/tests/src/log_buffer.cpp
+++ /dev/null
@@ -1,39 +0,0 @@
-#include "kernel/tests/log_buffer.hpp"
-
-#include <algorithm>
-#include <string>
-#include <vector>
-
-namespace kernel::tests::log_buffer
-{
-
-  namespace
-  {
-    std::vector<std::string> recorded_messages{};
-  }
-
-  auto append(std::string const & message) -> void
-  {
-    recorded_messages.push_back(message);
-  }
-
-  auto clear() -> void
-  {
-    recorded_messages.clear();
-  }
-
-  auto flat_messages() -> std::string
-  {
-    return std::ranges::fold_left(recorded_messages, std::string{},
-                                  [](std::string accumulator, std::string const & message) {
-                                    accumulator += message;
-                                    return accumulator;
-                                  });
-  }
-
-  auto messages() -> std::vector<std::string> const &
-  {
-    return recorded_messages;
-  }
-
-}  // namespace kernel::tests::log_buffer
diff --git a/kernel/tests/src/main.cpp b/kernel/tests/src/main.cpp
deleted file mode 100644
index b3ae142..0000000
--- a/kernel/tests/src/main.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-#include "kapi/interrupts.hpp"
-#include "kapi/memory.hpp"
-#include <kapi/cio.hpp>
-#include <kapi/cpu.hpp>
-
-#include <catch2/catch_session.hpp>
-
-auto main(int argc, char ** argv) -> int
-{
-  auto session = Catch::Session{};
-
-  if (auto result = session.applyCommandLine(argc, argv); result != 0)
-  {
-    return result;
-  }
-
-  auto const & config = session.configData();
-  auto skip_init = config.listTests ||      //
-                   config.listTags ||       //
-                   config.listReporters ||  //
-                   config.listListeners ||  //
-                   config.showHelp;
-
-  if (!skip_init)
-  {
-    kapi::cio::init();
-    kapi::cpu::init();
-    kapi::interrupts::enable();
-
-    kapi::memory::init();
-    // note: no kernel heap is created, since we are in the test environment. Nonetheless, we still initialize the
-    // memory subsystem, so that components that rely on it can be tested. No component must ever rely on the heap
-    // allocator directly, rather they have to go through the new and delete. However, some components may use the frame
-    // allocator and page mapper in order to perform their tasks.
-  }
-
-  return session.run();
-}
diff --git a/kernel/tests/src/simulated_memory.cpp b/kernel/tests/src/simulated_memory.cpp
deleted file mode 100644
index 9a9b354..0000000
--- a/kernel/tests/src/simulated_memory.cpp
+++ /dev/null
@@ -1,33 +0,0 @@
-#include "kernel/tests/simulated_memory.hpp"
-
-#include <kstd/units>
-
-#include <cstddef>
-#include <vector>
-
-namespace kernel::tests::simulated_memory
-{
-
-  namespace
-  {
-    auto constinit ram_storage = std::vector<std::byte>{};
-    auto constinit pmm_storage = std::vector<std::byte>{};
-  }  // namespace
-
-  auto init(kstd::units::bytes size) -> void
-  {
-    ram_storage.resize(size / kstd::units::bytes{1});
-    pmm_storage.resize(size / kstd::units::bytes{1});
-  }
-
-  auto pmm_metadata_base() -> std::byte *
-  {
-    return pmm_storage.data();
-  }
-
-  auto ram_base() -> std::byte *
-  {
-    return ram_storage.data();
-  }
-
-}  // namespace kernel::tests::simulated_memory
\ No newline at end of file
diff --git a/kernel/tests/src/test_support.tests.cpp b/kernel/tests/src/test_support.tests.cpp
deleted file mode 100644
index f835e65..0000000
--- a/kernel/tests/src/test_support.tests.cpp
+++ /dev/null
@@ -1,51 +0,0 @@
-#include "kapi/cpu.hpp"
-#include "kapi/system.hpp"
-
-#include "kernel/tests/cpu.hpp"
-#include "kernel/tests/log_buffer.hpp"
-
-#include <kstd/print>
-
-#include <catch2/catch_test_macros.hpp>
-
-SCENARIO("Kernel test support infrastructure", "[support]")
-{
-  GIVEN("the test support infrastructure is initialized")
-  {
-    WHEN("a CPU halt is requested")
-    {
-      THEN("the correct exception is thrown")
-      {
-        REQUIRE_THROWS_AS(kapi::cpu::halt(), kernel::tests::cpu::halt);
-      }
-    }
-
-    WHEN("a the system panics")
-    {
-      kernel::tests::log_buffer::clear();
-
-      THEN("the correct exception is thrown")
-      {
-        REQUIRE_THROWS_AS(kapi::system::panic("[kernel:tests] Test Panic"), kernel::tests::cpu::halt);
-      }
-
-      THEN("the message is appended to the log buffer")
-      {
-        CHECK_THROWS(kapi::system::panic("[kernel:tests] Test Panic"));
-        REQUIRE(kernel::tests::log_buffer::flat_messages().contains("[kernel:tests] Test Panic"));
-      }
-    }
-
-    WHEN("a regular print is issued")
-    {
-      kernel::tests::log_buffer::clear();
-
-      kstd::println("[kernel:tests] Test Print");
-
-      THEN("the message is appended to the log buffer")
-      {
-        REQUIRE(kernel::tests::log_buffer::flat_messages().contains("[kernel:tests] Test Print"));
-      }
-    }
-  }
-}
\ No newline at end of file