test clock, simplify

src/clock.rs

@@ -18,3 +18,17 @@ pub fn current_time() -> DateTime<Utc> {
         )
         .and_hms(rtc.hour.into(), rtc.minute.into(), rtc.second.into());
 }
+
+#[cfg(test)]
+use crate::{serial_print, serial_println, println};
+
+#[test_case]
+fn test_current_time() {
+  serial_print!("current time... ");
+  let now = current_time();
+  println!("{:?}", now);
+
+  assert_ne!(now.month(), 0);
+
+  serial_println!("[ok]");
+}

src/main.rs

@@ -6,28 +6,28 @@
 
 extern crate alloc;
 
-use alloc::string::ToString;
 use bootloader::{entry_point, BootInfo};
 use core::panic::PanicInfo;
-use xe_os::println;
+use alloc::string::ToString;
+use xe_os::{clock, init, println, wasm};
 
 entry_point!(kernel_main);
 
 fn kernel_main(boot_info: &'static BootInfo) -> ! {
-    xe_os::init(&boot_info);
+    init(&boot_info);
 
     #[cfg(test)]
     test_main();
 
     // Read the rtc date time using this year
-    let now = xe_os::clock::current_time();
-    println!("{}", now.to_string());
+    let now = clock::current_time();
+    println!("now: {}", now.to_string());
 
     println!("Running WASM:");
 
-    xe_os::wasm::run();
+    wasm::run();
     println!("[ ] success");
-
+    
     xe_os::hlt_loop();
 }