From 26a7561196674b39f9adadcb374f36c503361adb Mon Sep 17 00:00:00 2001
From: Dennis Kobert <dennis@kobert.dev>
Date: Sat, 9 Nov 2019 15:11:50 +0100
Subject: Add basic tests

---
 kernel/tests/stack_overflow.rs | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 kernel/tests/stack_overflow.rs

(limited to 'kernel/tests/stack_overflow.rs')

diff --git a/kernel/tests/stack_overflow.rs b/kernel/tests/stack_overflow.rs
new file mode 100644
index 0000000..677a9e1
--- /dev/null
+++ b/kernel/tests/stack_overflow.rs
@@ -0,0 +1,37 @@
+#![no_main]
+#![feature(compiler_builtins_lib)]
+#![feature(custom_test_frameworks)]
+#![feature(abi_x86_interrupt)]
+#![feature(panic_info_message)]
+#![test_runner(kernel::testing::serial_test_runner_panic)]
+#![no_std]
+
+use core::fmt::Write;
+use kernel;
+use kernel::io::qemu;
+
+#[no_mangle]
+extern "C" fn _start() -> ! {
+    kernel::init();
+    _loop(0);
+
+    loop {}
+}
+
+fn _loop(i: u128) -> u128 {
+    if i > 1u128 << 83 {
+        return i;
+    }
+    let n = i;
+    let mut stdout = kernel::OStream::new();
+    write!(&mut stdout, "{:x}", &n as *const u128 as u128).unwrap();
+    _loop(i + 1)
+}
+
+#[cfg(test)]
+#[panic_handler]
+#[no_mangle]
+extern "C" fn panic_handler(info: &core::panic::PanicInfo) -> ! {
+    kernel::testing::serial_should_panic(info);
+    loop {}
+}
-- 
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