small_vector should not require a copy-ctr from its element type unless it needs it.

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

diff --git a/folly/test/small_vector_test.cpp b/folly/test/small_vector_test.cpp
index 0190cbb84e4a72111e154834b8a455f1075fe1d4..db63d4918e660dc7734c6f1c5d8fa1747788954a 100644 (file)
--- a/folly/test/small_vector_test.cpp
+++ b/folly/test/small_vector_test.cpp
@@ -832,3 +832,27 @@ TEST(small_vector, InputIterator) {
     ASSERT_EQ(smallV[i], expected[i]);
   }
 }
+
+TEST(small_vector, NoCopyCtor) {
+  struct Test {
+    Test() = default;
+    Test(const Test&) = delete;
+    Test(Test&&) = default;
+
+    int field = 42;
+  };
+
+  small_vector<Test> test(10);
+  ASSERT_EQ(test.size(), 10);
+  for (const auto& element : test) {
+    EXPECT_EQ(element.field, 42);
+  }
+}
+
+TEST(small_vector, ZeroInitializable) {
+  small_vector<int> test(10);
+  ASSERT_EQ(test.size(), 10);
+  for (const auto& element : test) {
+    EXPECT_EQ(element, 0);
+  }
+}