diff --git a/tests/test.c b/tests/test.c
index 8bd13e9..6ebb120 100644
--- a/tests/test.c
+++ b/tests/test.c
@@ -33,7 +33,8 @@ void testPhymem(void)
 	}
 	printf("%d pages freed\n", freeCount);
 
-	assertmsg((page = (struct mem_desc *)allocPhyPage()) != NULL, "Cannot allocate memory\n");
+	assertmsg((page = (struct mem_desc *)allocPhyPage()) != NULL,
+		  "Cannot allocate memory\n");
 	unrefPhyPage((ulong)page);
 }
 
@@ -68,15 +69,16 @@ static void testPaging(void)
 
 	while ((page = (struct mem_desc *)allocPhyPage()) != NULL) {
 		assertmsg(pageMap((vaddr_t)page, (paddr_t)page, PAGING_MEM_WRITE) == 0,
-		       "Fail to map page %d\n", allocCount);
-		page->phy_addr = allocCount;
+			  "Fail to map page %d\n", allocCount);
+		memset(page, allocCount, PAGE_SIZE);
 		allocCount++;
 		list_add_tail(allocated_page_list, page);
 	}
 	printf("%d pages allocated\n", allocCount);
 
 	while ((page = list_pop_head(allocated_page_list)) != NULL) {
-		assertmsg(page->phy_addr == (ulong)freeCount, "page modified");
+		assertmsg((char)page->phy_addr == (char)freeCount,
+			  "page modified %d but is %d\n", freeCount, page->phy_addr);
 		assertmsg(unrefPhyPage((ulong)page) >= 0, "Failed to free page %d\n",
 			  (ulong)page);
 		pageUnmap((vaddr_t)page);
@@ -84,7 +86,8 @@ static void testPaging(void)
 	}
 	printf("%d pages freed\n", freeCount);
 
-	assertmsg((page = (struct mem_desc *)allocPhyPage()) != NULL, "Cannot allocate memory\n");
+	assertmsg((page = (struct mem_desc *)allocPhyPage()) != NULL,
+		  "Cannot allocate memory\n");
 	unrefPhyPage((ulong)page);
 }