1 files changed, 16 insertions, 0 deletions
diff --git a/third_party/abseil_cpp/absl/strings/internal/str_format/arg_test.cc b/third_party/abseil_cpp/absl/strings/internal/str_format/arg_test.cc
index bf3d7e8e37..1261937c30 100644
--- a/third_party/abseil_cpp/absl/strings/internal/str_format/arg_test.cc
+++ b/third_party/abseil_cpp/absl/strings/internal/str_format/arg_test.cc
@@ -6,6 +6,12 @@
 //
 //      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 "absl/strings/internal/str_format/arg.h"
 
 #include <ostream>
@@ -23,8 +29,17 @@ class FormatArgImplTest : public ::testing::Test {
   enum Color { kRed, kGreen, kBlue };
 
   static const char *hi() { return "hi"; }
+
+  struct X {};
+
+  X x_;
 };
 
+inline FormatConvertResult<FormatConversionCharSet{}> AbslFormatConvert(
+    const FormatArgImplTest::X &, const FormatConversionSpec &, FormatSink *) {
+  return {false};
+}
+
 TEST_F(FormatArgImplTest, ToInt) {
   int out = 0;
   EXPECT_TRUE(FormatArgImplFriend::ToInt(FormatArgImpl(1), &out));
@@ -59,6 +74,7 @@ TEST_F(FormatArgImplTest, ToInt) {
       FormatArgImpl(static_cast<int *>(nullptr)), &out));
   EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl(hi()), &out));
   EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl("hi"), &out));
+  EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl(x_), &out));
   EXPECT_TRUE(FormatArgImplFriend::ToInt(FormatArgImpl(kBlue), &out));
   EXPECT_EQ(2, out);
 }