1 files changed, 39 insertions, 0 deletions
diff --git a/Firestore/core/test/firebase/firestore/util/strerror_test.cc b/Firestore/core/test/firebase/firestore/util/strerror_test.cc
new file mode 100644
index 0000000..854cb08
--- /dev/null
+++ b/Firestore/core/test/firebase/firestore/util/strerror_test.cc
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2018 Google
+ *
+ * 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
+ *
+ *      http://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 "Firestore/core/src/firebase/firestore/util/strerror.h"
+
+#include "gtest/gtest.h"
+
+namespace firebase {
+namespace firestore {
+namespace util {
+
+TEST(StrErrorTest, ValidErrorCode) {
+  errno = EAGAIN;
+  EXPECT_EQ(StrError(EINTR), strerror(EINTR));
+  EXPECT_EQ(errno, EAGAIN);
+}
+
+TEST(StrErrorTest, InvalidErrorCode) {
+  errno = EBUSY;
+  EXPECT_EQ(StrError(-1), "Unknown error -1");
+  EXPECT_EQ(errno, EBUSY);
+}
+
+}  // namespace util
+}  // namespace firestore
+}  // namespace firebase