Extra tests. README changes.

Author: Mathias Bogaert

README.md

@@ -43,31 +43,31 @@ Usage with SBT, adding a dependency to the latest version of Scala Logging to yo
 libraryDependencies += "com.typesafe.scala-logging" %% "scala-logging" % "3.5.0"
 ```
 
-### What's new?
-
-#### 3.5.0
-
- - Bugfixes and upgrades, published for Scala 2.12.0-M5 and 2.12.0-RC1.
-
-#### 3.4.0
+## Using Scala Logging ##
 
- - Fixes #38 - Logger.info() cannot be used with primitive types.
+The `Logger` class from the `com.typesafe.scalalogging` package wraps an underlying SLF4J logger.
+In order to create a `Logger`, you pass a name to the `apply` factory method defined in the `Logger` companion object:
 
-#### 3.3.0
+```scala
+val logger = Logger("name")
+```
 
- - Fixes #42 - Request: Add Logger(class). README changes.
+Or, you pass in a SLF4J logger instance:
 
-#### 3.2.0
+```scala
+val logger = Logger(LoggerFactory.getLogger("name"))
+```
 
- - SLF4J loggers and our Logger now survive serialization. By survive serialization, we mean that the
-   deserialized logger instances are fully functional.
+Or, you pass in a class:
 
-## Using Scala Logging ##
+```scala
+val logger = Logger(classOf[MyClass])
+```
 
-The `Logger` class from the `com.typesafe.scalalogging` package wraps an underlying SLF4J logger. Hence, in order to create a `Logger`, you have to pass a SLF4J logger to the `apply` factory method defined in the `Logger` companion object:
+Or, using the runtime class wrapped by the implicit class tag parameter:
 
 ```scala
-val logger = Logger(LoggerFactory.getLogger("name"))
+val logger = Logger[MyClass]
 ```
 
 The `LazyLogging` and `StrictLogging` traits from the `com.typesafe.scalalogging` package define the `logger` member as
@@ -80,6 +80,21 @@ class MyClass extends LazyLogging {
 }
 ```
 
+### What's new?
+
+##### 3.5.0
+ - More Logger factory methods, bugfixes and upgrades, published for Scala 2.12.0-M5 and 2.12.0-RC1.
+
+##### 3.4.0
+ - Fixes #38 - Logger.info() cannot be used with primitive types.
+
+##### 3.3.0
+ - Fixes #42 - Request: Add Logger(class). README changes.
+
+##### 3.2.0
+ - SLF4J loggers and our Logger now survive serialization. By survive serialization, we mean that the
+   deserialized logger instances are fully functional.
+
 ## Line numbers in log message?
 
 Using the [sourcecode](https://github.com/lihaoyi/sourcecode#logging) library, it's possible to add line number

src/test/scala/com/typesafe/scalalogging/LoggerSpec.scala

@@ -360,6 +360,18 @@ class LoggerSpec extends WordSpec with Matchers with MockitoSugar {
 
       logger.trace("Back from deserialization")
     }
+
+    "constructed by explicit class and be usable after deserialization" in {
+      val logger = deserialize(serialize(Logger(classOf[LoggerSpec])))
+
+      logger.trace("Back from deserialization")
+    }
+
+    "constructed by implicit class tag and be usable after deserialization" in {
+      val logger = deserialize(serialize(Logger[LoggerSpec]))
+
+      logger.trace("Back from deserialization")
+    }
   }
 
   def fixture(p: Underlying => Boolean, isEnabled: Boolean) =