Added runtime tests for TTY

Removed types
Styling
Added printing error and multi line string for logo


Fix panic after rebase

src/kernel/kmain.zig

@@ -27,7 +27,6 @@ const panic_root = @import("panic.zig").panic;
 // Just call the panic function, as this need to be in the root source file
 pub fn panic(msg: []const u8, error_return_trace: ?*builtin.StackTrace) noreturn {
     @setCold(true);
-    arch.disableInterrupts();
     panic_root(error_return_trace, "{}", msg);
 }
 

src/kernel/panic.zig

@@ -5,6 +5,7 @@ const log = @import("log.zig");
 
 pub fn panic(trace: ?*builtin.StackTrace, comptime format: []const u8, args: ...) noreturn {
     @setCold(true);
+    arch.disableInterrupts();
     log.logInfo("KERNEL PANIC\n");
     log.logInfo(format, args);
     log.logInfo("HALTING\n");

test/mock/kernel/panic_mock.zig

@@ -1,7 +1,7 @@
 const builtin = @import("builtin");
-const panic = @import("std").debug.panic;
+const std = @import("std");
 
-pub fn panicFmt(trace: ?*builtin.StackTrace, comptime format: []const u8, args: ...) noreturn {
+pub fn panic(trace: ?*builtin.StackTrace, comptime format: []const u8, args: ...) noreturn {
     @setCold(true);
-    panic(format, args);
+    std.debug.panic(format, args);
 }

test/mock/kernel/vga_mock.zig

@@ -69,11 +69,11 @@ pub fn init() void {
 
 // User defined mocked functions
 
-pub fn mock_entryColour(fg: u4, bg: u4) u8 {
+pub fn orig_entryColour(fg: u4, bg: u4) u8 {
     return u8(fg) | u8(bg) << 4;
 }
 
-pub fn mock_entry(uc: u8, c: u8) u16 {
+pub fn orig_entry(uc: u8, c: u8) u16 {
     return u16(uc) | u16(c) << 8;
 }
 

test/rt-test.py

@@ -29,6 +29,7 @@ def get_post_archinit_cases():
             TestCase("VGA init", [r"Init vga", r"Done"]),
             TestCase("VGA tests", [r"VGA: Tested max scan line", r"VGA: Tested cursor shape", r"VGA: Tested updating cursor"]),
             TestCase("TTY init", [r"Init tty", r"Done"]),
+            TestCase("TTY tests", [r"TTY: Tested globals", r"TTY: Tested printing"]),
             TestCase("Init finishes", [r"Init done"])
         ]