add test

source/server/vnode/test/vnodeMemAllocatorTest.cpp

@@ -4,5 +4,19 @@
 #include "vnodeMemAllocator.h"
 
 TEST(VMATest, basic_create_and_destroy_test) {
-    std::cout << "Hello, this is VMA test" << std::endl;
+  SVnodeMemAllocator *vma = VMACreate(1024, 512, 64);
+  EXPECT_TRUE(vma != nullptr);
+  EXPECT_EQ(vma->full, false);
+  EXPECT_EQ(vma->ssize, 512);
+  EXPECT_EQ(vma->threshold, 64);
+  EXPECT_EQ(vma->inuse->tsize, 1024);
+  VMADestroy(vma);
+
+  vma = VMACreate(1024, 512, 1024);
+  EXPECT_TRUE(vma != nullptr);
+  VMADestroy(vma);
+
+  vma = VMACreate(1024, 512, 1025);
+  EXPECT_TRUE(vma == nullptr);
+  VMADestroy(vma);
 }
\ No newline at end of file