Make EventBaseLoopController only support VirtualEventBase

[folly.git] / folly / test / FBStringTest.cpp

diff --git a/folly/test/FBStringTest.cpp b/folly/test/FBStringTest.cpp
index a31038f7c5d3710735d584ca788a3cba70568b46..e65f804942d3179068678e51699acc6d1c204ca1 100644 (file)
--- a/folly/test/FBStringTest.cpp
+++ b/folly/test/FBStringTest.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Facebook, Inc.
+ * Copyright 2017 Facebook, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -1270,6 +1270,18 @@ TEST(FBString, testFixedBugs) {
   { // D3698862
     EXPECT_EQ(fbstring().find(fbstring(), 4), fbstring::npos);
   }
+  if (usingJEMalloc()) { // D4355440
+    fbstring str(1337, 'f');
+    str.reserve(3840);
+    EXPECT_NE(str.capacity(), 3840);
+
+    struct {
+      std::atomic<size_t> refCount_;
+    } dummyRefCounted;
+    EXPECT_EQ(
+        str.capacity(),
+        goodMallocSize(3840) - sizeof(dummyRefCounted) - sizeof(char));
+  }
 }
 
 TEST(FBString, findWithNpos) {
@@ -1419,3 +1431,10 @@ TEST(FBStringCtorTest, DefaultInitStructAlloc) {
   EXPECT_TRUE(t2.stringMember.empty());
   EXPECT_EQ(allocatorConstructedCount.load(), 1);
 }
+
+TEST(FBStringCtorTest, NullZeroConstruction) {
+  char* p = nullptr;
+  int n = 0;
+  folly::fbstring f(p, n);
+  EXPECT_EQ(f.size(), 0);
+}