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diff --git a/absl/strings/cordz_test.cc b/absl/strings/cordz_test.cc
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+// Copyright 2021 The Abseil Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <string>
+
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+#include "absl/base/config.h"
+#include "absl/base/internal/raw_logging.h"
+#include "absl/base/macros.h"
+#include "absl/strings/cord.h"
+#include "absl/strings/cordz_test_helpers.h"
+#include "absl/strings/internal/cordz_functions.h"
+#include "absl/strings/internal/cordz_info.h"
+#include "absl/strings/internal/cordz_sample_token.h"
+#include "absl/strings/internal/cordz_statistics.h"
+#include "absl/strings/internal/cordz_update_tracker.h"
+#include "absl/strings/str_cat.h"
+#include "absl/strings/string_view.h"
+
+#ifdef ABSL_INTERNAL_CORDZ_ENABLED
+
+namespace absl {
+ABSL_NAMESPACE_BEGIN
+
+using cord_internal::CordzInfo;
+using cord_internal::CordzSampleToken;
+using cord_internal::CordzStatistics;
+using cord_internal::CordzUpdateTracker;
+using Method = CordzUpdateTracker::MethodIdentifier;
+
+namespace {
+
+std::string MakeString(int length) {
+  std::string s(length, '.');
+  for (int i = 4; i < length; i += 2) {
+    s[i] = '\b';
+  }
+  return s;
+}
+
+TEST(CordzTest, ConstructSmallStringView) {
+  CordzSamplingIntervalHelper sample_every(1);
+  Cord cord(absl::string_view(MakeString(50)));
+  EXPECT_THAT(cord, HasValidCordzInfoOf(Method::kConstructorString));
+}
+
+TEST(CordzTest, ConstructLargeStringView) {
+  CordzSamplingIntervalHelper sample_every(1);
+  Cord cord(absl::string_view(MakeString(5000)));
+  EXPECT_THAT(cord, HasValidCordzInfoOf(Method::kConstructorString));
+}
+
+TEST(CordzTest, CopyConstruct) {
+  CordzSamplingIntervalHelper sample_every(1);
+  Cord src = UnsampledCord(MakeString(5000));
+  Cord cord(src);
+  EXPECT_THAT(cord, HasValidCordzInfoOf(Method::kConstructorCord));
+}
+
+TEST(CordzTest, AppendLargeCordToEmpty) {
+  CordzSamplingIntervalHelper sample_every(1);
+  Cord cord;
+  Cord src = UnsampledCord(MakeString(5000));
+  cord.Append(src);
+  EXPECT_THAT(cord, HasValidCordzInfoOf(Method::kAppendCord));
+}
+
+TEST(CordzTest, MoveAppendLargeCordToEmpty) {
+  CordzSamplingIntervalHelper sample_every(1);
+  Cord cord;
+  cord.Append(UnsampledCord(MakeString(5000)));
+  EXPECT_THAT(cord, HasValidCordzInfoOf(Method::kAppendCord));
+}
+
+}  // namespace
+
+ABSL_NAMESPACE_END
+}  // namespace absl
+
+#endif  // ABSL_INTERNAL_CORDZ_ENABLED