added a test for issue #11

uncomment line 48 to make the test fail

Author: oshai

build.gradle

@@ -32,9 +32,10 @@ repositories {
 
 dependencies {
     compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
-    // https://mvnrepository.com/artifact/org.slf4j/slf4j-api
-    compile group: 'org.slf4j', name: 'slf4j-api', version: '1.7.21'
-    testCompile group: 'org.slf4j', name: 'slf4j-simple', version: '1.7.21'
+    compile "org.slf4j:slf4j-api:1.7.21"
+    testCompile "org.slf4j:slf4j-log4j12:1.7.21"
+    testCompile "log4j:log4j:1.2.17"
+    testCompile "org.mockito:mockito-all:1.10.19"
     testCompile 'junit:junit:4.12'
 }
 

src/test/kotlin/mu/LoggingWithLocationTest.kt

@@ -0,0 +1,53 @@
+package mu
+
+import org.junit.After
+import org.junit.Before
+import org.junit.Test
+
+import org.mockito.Mockito.mock
+import org.mockito.Mockito.verify
+import org.apache.log4j.*
+import org.apache.log4j.spi.LoggingEvent
+import org.junit.Assert
+import org.mockito.Matchers.*
+import org.slf4j.LoggerFactory
+import java.io.StringWriter
+import java.util.*
+
+
+class LoggingWithLocationTest {
+    private var appenders: Vector<Appender>? = null
+    private var writer = StringWriter()
+
+    @Before
+    fun setupAppender() {
+        appenders = Vector<Appender>(2)
+        // 1. just a printout appender:
+        appenders!!.add(ConsoleAppender(PatternLayout("%p %C{1}.%M(%L) - %m%n")))
+        // 2. the appender to test against:
+        writer = StringWriter()
+        appenders!!.add(WriterAppender(PatternLayout("%p %C{1}.%M(%L) - %m%n"), writer))
+        Logger.getRootLogger().addAppender(appenders!![0])
+        Logger.getRootLogger().addAppender(appenders!![1])
+    }
+
+    @After
+    fun removeAppender() {
+        Logger.getRootLogger().removeAppender(appenders!![0])
+        Logger.getRootLogger().removeAppender(appenders!![1])
+    }
+
+    @Test
+    fun testMethod() {
+        ClassWithLoggingForLocationTesting().log()
+        Assert.assertEquals("INFO ClassWithLoggingForLocationTesting.log(51) - test", writer.toString().trim())
+    }
+}
+
+class ClassWithLoggingForLocationTesting {
+//    companion object: KLogging()
+    val logger: org.slf4j.Logger = LoggerFactory.getLogger(this.javaClass)
+    fun log() {
+        logger.info("test")
+    }
+}

src/test/resources/log4j.properties

@@ -0,0 +1,9 @@
+# Set root logger level to DEBUG and its only appender to A1.
+log4j.rootLogger=DEBUG, A1
+
+# A1 is set to be a ConsoleAppender.
+log4j.appender.A1=org.apache.log4j.ConsoleAppender
+
+# A1 uses PatternLayout.
+log4j.appender.A1.layout=org.apache.log4j.PatternLayout
+log4j.appender.A1.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n