@Test
public void testLog() throws Exception {
String lcFileName = "./logs/" + Java.getCallingMethodName(false, 0);
new File(lcFileName + ".log").delete();
for (int i = 0; i < 3; i++) {
new File(lcFileName + "_" + (i + 1) + ".log").delete();
}
String lcMessage = "This is the message that is to be logged";
FileLogger loLogger = new FileLogger(3, 10, new File(lcFileName + ".log"));
for (int i = 0; i < 4; i++) {
loLogger.log(lcMessage + " i = " + i);
// Force Flush
loLogger.flush();
}
loLogger.log("final write");
loLogger.flush();
// Test the file contents
BufferedReader loReader = new BufferedReader(new FileReader(lcFileName + ".log"));
String lcLine = loReader.readLine();
assertTrue(lcLine.contains("final write"));
loReader.close();
for (int i = 0; i < 3; i++) {
loReader = new BufferedReader(new FileReader(lcFileName + "_" + (i + 1) + ".log"));
lcLine = loReader.readLine();
if (i == 0) {
assertTrue(lcLine.contains("This is the message that is to be logged" + " i = " + 3));
} else {
assertTrue(lcLine.contains("This is the message that is to be logged" + " i = " + i));
}
loReader.close();
}
}
@Test
public void testStopwatch() throws Exception {
String lcFileName = "./logs/" + Java.getCallingMethodName(false, 0);
File loFile = new File(lcFileName + ".log");
loFile.delete();
String lcMessage = "This is the message that is to be logged";
FileLogger loLogger = new FileLogger(3, 10, loFile);
for (int i = 0; i < 10; i++) {
loLogger.log(lcMessage);
}
Thread.sleep(1500);
assertTrue(loFile.exists());
}
@Test
public void readsMessageFromFile() {
FileLogger logger = new FileLogger(pathToEmptyFile);
logger.log("Some content");
assertEquals("Some content, ", logger.getLogs());
}
@Test
public void writesMessageToFile() throws IOException {
FileLogger logger = new FileLogger(pathToEmptyFile);
logger.log("message");
assertEquals("message, ", new String(Files.readAllBytes(Paths.get(pathToEmptyFile))));
}
private void log(String msg, FileLogger flogger) {
String result = getClass().getName() + ": " + msg;
System.out.println(result);
if (flogger != null) flogger.log(msg);
}
