diff --git a/kernel/trunk/runtests.py b/kernel/trunk/runtests.py
index bfe5379f2b..616e696684 100755
--- a/kernel/trunk/runtests.py
+++ b/kernel/trunk/runtests.py
@@ -75,78 +75,78 @@ def check_tools(tools):
         draw_line()
         exit()
 
-
-# Check available tools
-tools = (("mcopy", "mtools"),
-         ("qemu-system-i386", "qemu-system-x86"),
-         ("wget", "wget"),
-         ("fasm", "fasm"))
-check_tools(tools)
-
-# Get IMG
-if not os.path.exists("kolibri_test.img"):
-    if len(sys.argv) == 1:
-        execute("wget -q --show-progress http://builds.kolibrios.org/eng/data/data/kolibri.img -O kolibri_test.img")
-    else:
-        builds_eng = sys.argv[1]
-        execute(f"cp {builds_eng}/data/data/kolibri.img kolibri_test.img")
-
-# Remove old kernel (may fail if we removed it before so no check here)
-os.system("mdel -i kolibri_test.img ::kernel.mnt > /dev/null")
-
-# Check free space after kernel remove
-free_clusters = int(subprocess.check_output("mdu -i kolibri_test.img :: -s", shell=True).split()[-1])
-floppy_image_clusters = 2880
-if floppy_image_clusters - free_clusters < 500:
-    # Remove unuseful files from IMG if lesser than 500 sectors
-    execute("mdeltree -i kolibri_test.img ::GAMES", mute = True)
-    execute("mdeltree -i kolibri_test.img ::DEMOS", mute = True)
-    execute("mdeltree -i kolibri_test.img ::3D", mute = True)
-
-# Get test kernel
-if not os.path.exists("kernel.mnt.pretest"):
-    if len(sys.argv) == 1:
-        with open("lang.inc", "w") as lang_inc:
-            lang_inc.write("lang fix en\n")
-        execute("fasm bootbios.asm bootbios.bin.pretest -dpretest_build=1")
-        execute("fasm -m 65536 kernel.asm kernel.mnt.pretest -dpretest_build=1 -ddebug_com_base=0xe9")
-    else:
-        builds_eng = sys.argv[1]
-        execute(f"cp {builds_eng}/data/kernel/trunk/kernel.mnt.pretest kernel.mnt.pretest", mute = True)
-
-# Put the kernel into IMG
-execute("mcopy -D o -i kolibri_test.img kernel.mnt.pretest ::kernel.mnt", mute = True)
-
-# Collect tests from test folder (not recursively yet)
-for test_folder in os.listdir("test"):
-    test_folder_path = f"test/{test_folder}"
-    test_file = f"{test_folder_path}/test.py"
-
-    if not os.path.isdir(test_folder_path):
-        continue
-
-    if os.path.exists(test_file):
-        tests.append(test_folder_path)
-
-# Execute each test
-test_number = 1
-for test in tests:
-    test_dir = f"{root_dir}/{test}"
-
-    os.chdir(test_dir)
-    print(f"[{test_number}/{len(tests)}] {test}... ", end = "", flush=True)
-    start = timeit.default_timer()
-    try:
-        SourceFileLoader("test", "test.py").load_module().run()
-    except common.TestTimeoutException:
-        result = "TIMEOUT"
-    except common.TestFailureException:
-        result = "FAILURE"
-    else:
-        result = "SUCCESS"
-    finish = timeit.default_timer()
-    print(f"{result} ({finish - start:.2f} seconds)")
-    os.chdir(root_dir)
-
-    test_number += 1
-
+if __name__ == "__main__":
+    # Check available tools
+    tools = (("mcopy", "mtools"),
+             ("qemu-system-i386", "qemu-system-x86"),
+             ("wget", "wget"),
+             ("fasm", "fasm"))
+    check_tools(tools)
+    
+    # Get IMG
+    if not os.path.exists("kolibri_test.img"):
+        if len(sys.argv) == 1:
+            execute("wget -q --show-progress http://builds.kolibrios.org/eng/data/data/kolibri.img -O kolibri_test.img")
+        else:
+            builds_eng = sys.argv[1]
+            execute(f"cp {builds_eng}/data/data/kolibri.img kolibri_test.img")
+    
+    # Remove old kernel (may fail if we removed it before so no check here)
+    os.system("mdel -i kolibri_test.img ::kernel.mnt > /dev/null")
+    
+    # Check free space after kernel remove
+    free_clusters = int(subprocess.check_output("mdu -i kolibri_test.img :: -s", shell=True).split()[-1])
+    floppy_image_clusters = 2880
+    if floppy_image_clusters - free_clusters < 500:
+        # Remove unuseful files from IMG if lesser than 500 sectors
+        execute("mdeltree -i kolibri_test.img ::GAMES", mute = True)
+        execute("mdeltree -i kolibri_test.img ::DEMOS", mute = True)
+        execute("mdeltree -i kolibri_test.img ::3D", mute = True)
+    
+    # Get test kernel
+    if not os.path.exists("kernel.mnt.pretest"):
+        if len(sys.argv) == 1:
+            with open("lang.inc", "w") as lang_inc:
+                lang_inc.write("lang fix en\n")
+            execute("fasm bootbios.asm bootbios.bin.pretest -dpretest_build=1")
+            execute("fasm -m 65536 kernel.asm kernel.mnt.pretest -dpretest_build=1 -ddebug_com_base=0xe9")
+        else:
+            builds_eng = sys.argv[1]
+            execute(f"cp {builds_eng}/data/kernel/trunk/kernel.mnt.pretest kernel.mnt.pretest", mute = True)
+    
+    # Put the kernel into IMG
+    execute("mcopy -D o -i kolibri_test.img kernel.mnt.pretest ::kernel.mnt", mute = True)
+    
+    # Collect tests from test folder (not recursively yet)
+    for test_folder in os.listdir("test"):
+        test_folder_path = f"test/{test_folder}"
+        test_file = f"{test_folder_path}/test.py"
+    
+        if not os.path.isdir(test_folder_path):
+            continue
+    
+        if os.path.exists(test_file):
+            tests.append(test_folder_path)
+    
+    # Execute each test
+    test_number = 1
+    for test in tests:
+        test_dir = f"{root_dir}/{test}"
+    
+        os.chdir(test_dir)
+        print(f"[{test_number}/{len(tests)}] {test}... ", end = "", flush=True)
+        start = timeit.default_timer()
+        try:
+            SourceFileLoader("test", "test.py").load_module().run()
+        except common.TestTimeoutException:
+            result = "TIMEOUT"
+        except common.TestFailureException:
+            result = "FAILURE"
+        else:
+            result = "SUCCESS"
+        finish = timeit.default_timer()
+        print(f"{result} ({finish - start:.2f} seconds)")
+        os.chdir(root_dir)
+    
+        test_number += 1
+