1 files changed, 42 insertions, 0 deletions
diff --git a/src/jaegertracing/opentelemetry-cpp/sdk/test/common/atomic_unique_ptr_test.cc b/src/jaegertracing/opentelemetry-cpp/sdk/test/common/atomic_unique_ptr_test.cc
new file mode 100644
index 000000000..aa6d88a00
--- /dev/null
+++ b/src/jaegertracing/opentelemetry-cpp/sdk/test/common/atomic_unique_ptr_test.cc
@@ -0,0 +1,42 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+#include "opentelemetry/sdk/common/atomic_unique_ptr.h"
+
+#include <gtest/gtest.h>
+using opentelemetry::sdk::common::AtomicUniquePtr;
+
+TEST(AtomicUniquePtrTest, SwapIfNullWithNull)
+{
+  AtomicUniquePtr<int> ptr;
+  EXPECT_TRUE(ptr.IsNull());
+
+  std::unique_ptr<int> x{new int{33}};
+  EXPECT_TRUE(ptr.SwapIfNull(x));
+  EXPECT_EQ(x, nullptr);
+}
+
+TEST(AtomicUniquePtrTest, SwapIfNullWithNonNull)
+{
+  AtomicUniquePtr<int> ptr;
+  ptr.Reset(new int{11});
+  std::unique_ptr<int> x{new int{33}};
+  EXPECT_TRUE(!ptr.SwapIfNull(x));
+  EXPECT_NE(x, nullptr);
+  EXPECT_EQ(*x, 33);
+  EXPECT_EQ(*ptr, 11);
+}
+
+TEST(AtomicUniquePtrTest, Swap)
+{
+  AtomicUniquePtr<int> ptr;
+  EXPECT_TRUE(ptr.IsNull());
+
+  ptr.Reset(new int{11});
+  std::unique_ptr<int> x{new int{33}};
+  ptr.Swap(x);
+  EXPECT_FALSE(ptr.IsNull());
+  EXPECT_NE(x, nullptr);
+  EXPECT_EQ(*x, 11);
+  EXPECT_EQ(*ptr, 33);
+}