Log4JCustomPatternLayoutTest.scala
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	package net.shrine.log

	import java.io.StringWriter

	import net.shrine.util.ShouldMatchersForJUnit
	import org.apache.log4j.WriterAppender
	import org.junit.{After, Before, Test}

	/**
	* @author david
	* @since 8/4/15
	*/
	class Log4JCustomPatternLayoutTest extends ShouldMatchersForJUnit {

	var writer: StringWriter = null
	var writerAppender: WriterAppender = null
	val layout = new CustomPatternLayout
	layout.setConversionPattern("%d{yyyy-MMM-dd-HH:mm:ss.SSS} %p [SHRINE][%c{1}][%t] %m %n %throwable")

	//todo def testWithWriter higher order function

	@Before
	def setUpLog4J() = {
	writer = new StringWriter()

	writerAppender = new WriterAppender(layout,writer)
	Log.logger.addAppender(writerAppender)
	}

	@After
	def tearDownLog4J() = {
	Log.logger.removeAppender(writerAppender)
	}

	val i2b2PasswordString = """<password is_token="false" token_ms_timeout="1800000">kapow</password>"""
	val expectedI2b2PasswordString = """<password is_token="false" token_ms_timeout="1800000">REDACTED</password>"""

	@Test
	def testCensorI2b2Message() = {

	Log.debug(i2b2PasswordString)
	val result = writer.getBuffer.toString

	assert(result.contains(expectedI2b2PasswordString))
	}

	@Test
	def testCensorI2b2Throwable() = {
	val exception = new Exception(i2b2PasswordString)

	Log.debug("I2B2 sent back some strange xml",exception)
	val result = writer.getBuffer.toString

	assert(result.contains(expectedI2b2PasswordString))
	}

	}