tools+tests: Add a system to run all tests at once automatically

tests/CMakeLists.txt

@@ -3,17 +3,19 @@ target_compile_options(test PRIVATE ${COMMON_FLAGS})
 target_include_directories(test PUBLIC ${CMAKE_CURRENT_LIST_DIR})
 target_include_directories(test PUBLIC ${LUNA_BASE}/usr/include)
 
-function(luna_test SOURCE_FILE APP_NAME SETUID)
+function(luna_test SOURCE_FILE APP_NAME)
     add_executable(${APP_NAME} ${SOURCE_FILE})
     target_compile_options(${APP_NAME} PRIVATE -Os ${COMMON_FLAGS} -Wno-write-strings)
     add_dependencies(${APP_NAME} libc)
     target_include_directories(${APP_NAME} PRIVATE ${LUNA_BASE}/usr/include)
     target_link_libraries(${APP_NAME} PRIVATE test os)
-    install(TARGETS ${APP_NAME} DESTINATION ${LUNA_ROOT}/initrd/tests)
+    install(TARGETS ${APP_NAME} DESTINATION ${LUNA_ROOT}/initrd/bin/tests)
 endfunction()
 
 if(BUILD_TESTS)
 luna_test(libluna/TestVector.cpp TestVector)
 luna_test(libluna/TestBase64.cpp TestBase64)
 luna_test(libluna/TestUtf8.cpp TestUtf8)
+
+luna_app(run-tests.cpp run-tests)
 endif()

tests/run-tests.cpp

@@ -0,0 +1,32 @@
+#include <luna/String.h>
+#include <os/ArgumentParser.h>
+#include <os/Directory.h>
+#include <os/File.h>
+#include <stdlib.h>
+#include <sys/wait.h>
+
+Result<int> luna_main(int argc, char** argv)
+{
+    StringView test_dir;
+
+    os::ArgumentParser parser;
+    parser.add_description("Run the system test suite.");
+    parser.add_system_program_info("run-tests"_sv);
+    parser.add_positional_argument(test_dir, "test-dir", "/bin/tests"_sv);
+    parser.parse(argc, argv);
+
+    auto dir = TRY(os::Directory::open(test_dir));
+
+    auto files = TRY(dir->list(os::Directory::Filter::Hidden));
+
+    for (const auto& program : files)
+    {
+        auto command = TRY(String::format("%s/%s"_sv, test_dir.chars(), program.chars()));
+        int status = system(command.chars());
+        if (WEXITSTATUS(status) != 0) return WEXITSTATUS(status);
+    }
+
+    os::println("All tests passed.");
+
+    return 0;
+}

tools/run-tests.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -e
+
+source $(dirname $0)/env.sh
+
+cd $LUNA_ROOT
+
+tools/setup.sh
+
+tools/full-clean.sh
+
+tools/install-headers.sh
+
+cmake -S . -B $LUNA_BUILD_DIR -G "$LUNA_CMAKE_GENERATOR_NAME" -DBUILD_TESTS=ON
+cmake --build $LUNA_BUILD_DIR
+
+rm initrd/etc/init/*
+
+printf "Name=test\nCommand=/bin/run-tests\nWait=true\n" > initrd/etc/init/00-tests
+
+tools/make-iso.sh
+
+set +e
+tools/fast-run.sh
+set -e
+
+rm initrd/etc/init/00-tests
+
+git checkout initrd/etc/init/