Simple test

Cargo.toml

@@ -17,5 +17,7 @@ features = ["spin_no_std"]
 
 
 [package.metadata.bootimage]
-test-args = ["-device", "isa-debug-exit,iobase=0xf4,iosize=0x04", "-serial", "stdio"]
+test-args = ["-device", "isa-debug-exit,iobase=0xf4,iosize=0x04", "-serial", "stdio",
+            "-display", "none"]
 test-success-exit-code = 33 # (0x10 << 1) | 1
+test-timeout = 10 # timeout in seconds

src/main.rs

@@ -1,7 +1,6 @@
 // #![feature(abi_x86_interrupt, asm)]
 #![no_std]
 #![no_main]
-
 #![feature(custom_test_frameworks)]
 #![test_runner(crate::test_runner)]
 #![reexport_test_harness_main = "test_main"]
@@ -13,12 +12,22 @@ mod serial;
 
 use core::panic::PanicInfo;
 
+#[cfg(not(test))]
 #[panic_handler]
 fn panic(info: &PanicInfo) -> ! {
     println!("{info}");
     loop {}
 }
 
+#[cfg(test)]
+#[panic_handler]
+fn panic(info: &PanicInfo) -> ! {
+    serial_println!("[failed]\n");
+    serial_println!("Error: {}", info);
+    exit_qemu(QemuExitCode::Failed);
+    loop {}
+}
+
 #[no_mangle]
 pub extern "C" fn _start() -> ! {
     #[cfg(test)]
@@ -43,11 +52,26 @@ pub fn exit_qemu(exit_code: QemuExitCode) {
     }
 }
 
+pub trait TestFunction {
+    fn run(&self) -> ();
+}
+
+impl<T> TestFunction for T
+where
+    T: Fn(),
+{
+    fn run(&self) {
+        serial_print!("{}...\t", core::any::type_name::<T>());
+        self();
+        serial_println!("[ok]");
+    }
+}
+
 #[cfg(test)]
-fn test_runner(tests: &[&dyn Fn()]) {
+fn test_runner(tests: &[&dyn TestFunction]) {
     serial_println!("Running {} test(s)", tests.len());
     for test in tests {
-        test();
+        test.run();
     }
 
     exit_qemu(QemuExitCode::Success);
@@ -55,8 +79,10 @@ fn test_runner(tests: &[&dyn Fn()]) {
 
 #[test_case]
 fn basic_test() {
-    serial_print!("Trivial test... ");
     assert_eq!(5, 5);
-    serial_println!("[ok]");
 }
 
+#[test_case]
+fn basic_test2() {
+    assert_eq!(4, 4);
+}

src/serial.rs

@@ -1,7 +1,6 @@
-use uart_16550::SerialPort;
-use spin::Mutex;
 use lazy_static::lazy_static;
-
+use spin::Mutex;
+use uart_16550::SerialPort;
 
 lazy_static! {
     pub static ref SERIAL1: Mutex<SerialPort> = {

src/vga_buffer.rs

@@ -163,3 +163,9 @@ lazy_static! {
     pub static ref WRITER: Mutex<Writer> =
         Mutex::new(Writer::new(ColorCode::new(Color::Yellow, Color::Black)));
 }
+
+#[test_case]
+fn test_println_simple() {
+    println!("Does this work?");
+}
+