1 files changed, 132 insertions, 0 deletions
diff --git a/src/mongo/logger/rotatable_file_writer_test.cpp b/src/mongo/logger/rotatable_file_writer_test.cpp
new file mode 100644
index 00000000000..bc690396443
--- /dev/null
+++ b/src/mongo/logger/rotatable_file_writer_test.cpp
@@ -0,0 +1,132 @@
+/*    Copyright 2013 10gen Inc.
+ *
+ *    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 "mongo/platform/basic.h"
+
+#include <fstream>
+
+#include "mongo/logger/rotatable_file_writer.h"
+#include "mongo/unittest/unittest.h"
+
+namespace {
+    using namespace mongo;
+    using namespace mongo::logger;
+
+    const std::string logFileName("LogTest_RotatableFileAppender.txt");
+    const std::string logFileNameRotated("LogTest_RotatableFileAppender_Rotated.txt");
+
+    // TODO(schwerin): Create a safe, uniform mechanism by which unit tests may read and write
+    // temporary files.
+    class RotatableFileWriterTest : public mongo::unittest::Test {
+    public:
+        RotatableFileWriterTest() {
+            unlink(logFileName.c_str());
+            unlink(logFileNameRotated.c_str());
+        }
+
+        virtual ~RotatableFileWriterTest() {
+            unlink(logFileName.c_str());
+            unlink(logFileNameRotated.c_str());
+        }
+    };
+
+    TEST_F(RotatableFileWriterTest, RotationTest) {
+        using namespace logger;
+
+        {
+            RotatableFileWriter writer;
+            RotatableFileWriter::Use writerUse(&writer);
+            ASSERT_OK(writerUse.setFileName(logFileName, false));
+            ASSERT_TRUE(writerUse.stream() << "Level 1 message." << std::endl);
+            ASSERT_TRUE(writerUse.stream() << "Level 2 message." << std::endl);
+            ASSERT_OK(writerUse.rotate(logFileNameRotated));
+            ASSERT_TRUE(writerUse.stream() << "Level 3 message." << std::endl);
+            ASSERT_TRUE(writerUse.stream() << "Level 4 message." << std::endl);
+        }
+
+        {
+            std::ifstream ifs(logFileNameRotated.c_str());
+            ASSERT_TRUE(ifs.is_open());
+            ASSERT_TRUE(ifs.good());
+            std::string input;
+            ASSERT_TRUE(std::getline(ifs, input));
+            ASSERT_EQUALS(input, "Level 1 message.");
+            ASSERT_TRUE(std::getline(ifs, input));
+            ASSERT_EQUALS(input, "Level 2 message.");
+            ASSERT_TRUE(std::getline(ifs, input).fail());
+            ASSERT_TRUE(ifs.eof());
+        }
+
+        {
+            std::ifstream ifs(logFileName.c_str());
+            ASSERT_TRUE(ifs.is_open());
+            ASSERT_TRUE(ifs.good());
+            std::string input;
+            ASSERT_TRUE(std::getline(ifs, input));
+            ASSERT_EQUALS(input, "Level 3 message.");
+            ASSERT_TRUE(std::getline(ifs, input));
+            ASSERT_EQUALS(input, "Level 4 message.");
+            ASSERT_TRUE(std::getline(ifs, input).fail());
+            ASSERT_TRUE(ifs.eof());
+        }
+
+        {
+            RotatableFileWriter writer;
+            RotatableFileWriter::Use writerUse(&writer);
+            ASSERT_OK(writerUse.setFileName(logFileName, true));
+            ASSERT_TRUE(writerUse.stream() << "Level 5 message." << std::endl);
+            ASSERT_TRUE(writerUse.stream() << "Level 6 message." << std::endl);
+        }
+
+       {
+            std::ifstream ifs(logFileName.c_str());
+            ASSERT_TRUE(ifs.is_open());
+            ASSERT_TRUE(ifs.good());
+            std::string input;
+            ASSERT_TRUE(std::getline(ifs, input));
+            ASSERT_EQUALS(input, "Level 3 message.");
+            ASSERT_TRUE(std::getline(ifs, input));
+            ASSERT_EQUALS(input, "Level 4 message.");
+            ASSERT_FALSE(std::getline(ifs, input).fail());
+            ASSERT_EQUALS(input, "Level 5 message.");
+            ASSERT_TRUE(std::getline(ifs, input));
+            ASSERT_EQUALS(input, "Level 6 message.");
+            ASSERT_TRUE(std::getline(ifs, input).fail());
+            ASSERT_TRUE(ifs.eof());
+        }
+
+        {
+            RotatableFileWriter writer;
+            RotatableFileWriter::Use writerUse(&writer);
+            ASSERT_OK(writerUse.setFileName(logFileName, false));
+            ASSERT_TRUE(writerUse.stream() << "Level 7 message." << std::endl);
+            ASSERT_TRUE(writerUse.stream() << "Level 8 message." << std::endl);
+        }
+
+        {
+            std::ifstream ifs(logFileName.c_str());
+            ASSERT_TRUE(ifs.is_open());
+            ASSERT_TRUE(ifs.good());
+            std::string input;
+            ASSERT_TRUE(std::getline(ifs, input));
+            ASSERT_EQUALS(input, "Level 7 message.");
+            ASSERT_FALSE(std::getline(ifs, input).fail());
+            ASSERT_EQUALS(input, "Level 8 message.");
+            ASSERT_TRUE(std::getline(ifs, input).fail());
+            ASSERT_TRUE(ifs.eof());
+        }
+    }
+
+}  // namespace mongo