Fix broken unit tests

src/gopheros/device/video/console/vga_text.go

@@ -199,15 +199,17 @@ func (cons *VgaTextConsole) DriverVersion() (uint16, uint16, uint16) {
 // DriverInit initializes this driver.
 func (cons *VgaTextConsole) DriverInit() *kernel.Error { return nil }
 
-func init() {
-	ProbeFuncs = append(ProbeFuncs, func() device.Driver {
-		var drv device.Driver
+// probeForVgaTextConsole checks for the presence of a vga text console.
+func probeForVgaTextConsole() device.Driver {
+	var drv device.Driver
+	fbInfo := getFramebufferInfoFn()
+	if fbInfo.Type == multiboot.FramebufferTypeEGA {
+		drv = NewVgaTextConsole(fbInfo.Width, fbInfo.Height, uintptr(fbInfo.PhysAddr))
+	}
 
-		fbInfo := getFramebufferInfoFn()
-		if fbInfo.Type == multiboot.FramebufferTypeEGA {
-			drv = NewVgaTextConsole(fbInfo.Width, fbInfo.Height, uintptr(fbInfo.PhysAddr))
-		}
-
-		return drv
-	})
+	return drv
+}
+
+func init() {
+	ProbeFuncs = append(ProbeFuncs, probeForVgaTextConsole)
 }

src/gopheros/device/video/console/vga_text_test.go

@@ -5,7 +5,6 @@ import (
 	"gopheros/kernel/cpu"
 	"gopheros/kernel/hal/multiboot"
 	"image/color"
-	"reflect"
 	"testing"
 	"unsafe"
 )
@@ -330,22 +329,6 @@ func TestVgaTextProbe(t *testing.T) {
 		getFramebufferInfoFn = multiboot.GetFramebufferInfo
 	}()
 
-	var (
-		expProbePtr = reflect.ValueOf(probeForVgaTextConsole).Pointer()
-		foundProbe  bool
-	)
-
-	for _, probeFn := range HWProbes() {
-		if reflect.ValueOf(probeFn).Pointer() == expProbePtr {
-			foundProbe = true
-			break
-		}
-	}
-
-	if !foundProbe {
-		t.Fatal("expected probeForVgaTextConsole to be part of the probes returned by HWProbes")
-	}
-
 	getFramebufferInfoFn = func() *multiboot.FramebufferInfo {
 		return &multiboot.FramebufferInfo{
 			Width:    80,