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src/common/memory_unittest.cc

Index: src/common/memory_unittest.cc
diff --git a/src/common/memory_unittest.cc b/src/common/memory_unittest.cc
index 1e511ca56ea7a41023baddd1dca0d741e90a6e2c..b271bc3ce6ed1eb9ed82c994006cef293727603e 100644
--- a/src/common/memory_unittest.cc
+++ b/src/common/memory_unittest.cc
@@ -38,11 +38,13 @@ typedef testing::Test PageAllocatorTest;
 
 TEST(PageAllocatorTest, Setup) {
   PageAllocator allocator;
+  EXPECT_EQ(0, allocator.pages_allocated());
 }
 
 TEST(PageAllocatorTest, SmallObjects) {
   PageAllocator allocator;
 
+  EXPECT_EQ(0, allocator.pages_allocated());
   for (unsigned i = 1; i < 1024; ++i) {
     uint8_t *p = reinterpret_cast<uint8_t*>(allocator.Alloc(i));
     ASSERT_FALSE(p == NULL);
@@ -53,8 +55,10 @@ TEST(PageAllocatorTest, SmallObjects) {
 TEST(PageAllocatorTest, LargeObject) {
   PageAllocator allocator;
 
+  EXPECT_EQ(0, allocator.pages_allocated());
   uint8_t *p = reinterpret_cast<uint8_t*>(allocator.Alloc(10000));
   ASSERT_FALSE(p == NULL);
+  EXPECT_EQ(3, allocator.pages_allocated());
   for (unsigned i = 1; i < 10; ++i) {
     uint8_t *p = reinterpret_cast<uint8_t*>(allocator.Alloc(i));
     ASSERT_FALSE(p == NULL);
@@ -75,6 +79,7 @@ TEST(WastefulVectorTest, Setup) {
 
 TEST(WastefulVectorTest, Simple) {
   PageAllocator allocator_;
+  EXPECT_EQ(0, allocator_.pages_allocated());
   wasteful_vector<unsigned> v(&allocator_);
 
   for (unsigned i = 0; i < 256; ++i) {
@@ -84,6 +89,7 @@ TEST(WastefulVectorTest, Simple) {
   }
   ASSERT_FALSE(v.empty());
   ASSERT_EQ(v.size(), 256u);
+  EXPECT_EQ(1, allocator_.pages_allocated());
   for (unsigned i = 0; i < 256; ++i)
     ASSERT_EQ(v[i], i);
 }
@@ -91,7 +97,28 @@ TEST(WastefulVectorTest, Simple) {
 TEST(WastefulVectorTest, UsesPageAllocator) {
   PageAllocator allocator_;
   wasteful_vector<unsigned> v(&allocator_);
+  EXPECT_EQ(1, allocator_.pages_allocated());
 
   v.push_back(1);
   ASSERT_TRUE(allocator_.OwnsPointer(&v[0]));
 }
+
+TEST(WastefulVectorTest, AutoWastefulVector) {
+  PageAllocator allocator_;
+  EXPECT_EQ(0, allocator_.pages_allocated());
+
+  auto_wasteful_vector<unsigned, 4> v(&allocator_);
+  EXPECT_EQ(0, allocator_.pages_allocated());
+
+  v.push_back(1);
+  EXPECT_EQ(0, allocator_.pages_allocated());
+  EXPECT_FALSE(allocator_.OwnsPointer(&v[0]));
+
+  v.resize(4);
+  EXPECT_EQ(0, allocator_.pages_allocated());
+  EXPECT_FALSE(allocator_.OwnsPointer(&v[0]));
+
+  v.resize(10);
+  EXPECT_EQ(1, allocator_.pages_allocated());
+  EXPECT_TRUE(allocator_.OwnsPointer(&v[0]));
+}