diff --git a/src/it/replace-file-content/pom.xml b/src/it/replace-file-content/pom.xml
index 24676ec..ed1ccd6 100644
--- a/src/it/replace-file-content/pom.xml
+++ b/src/it/replace-file-content/pom.xml
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-		xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>com.inteligr8</groupId>
@@ -11,7 +11,7 @@
 	<packaging>pom</packaging>
 
 	<name>Replace File Plugin Tests</name>
-	
+
 	<build>
 		<plugins>
 			<plugin>
@@ -62,7 +62,7 @@
 									<excludes>
 										<exclude>pom.xml</exclude>
 										<exclude>*.log</exclude>
-										<exclude>target</exclude>
+										<exclude>target/**/*</exclude>
 									</excludes>
 									<outputDirectory>${project.build.directory}/noreplace-one</outputDirectory>
 								</fileset>
@@ -75,31 +75,74 @@
 							</regexes>
 						</configuration>
 					</execution>
+					<execution>
+						<id>replace-linestart</id>
+						<phase>validate</phase>
+						<goals>
+							<goal>replace-file</goal>
+						</goals>
+						<configuration>
+							<filesets>
+								<fileset>
+									<directory>${basedir}</directory>
+									<includes>
+										<include>folder1/file12.txt</include>
+									</includes>
+									<outputDirectory>${project.build.directory}/replace-linestart</outputDirectory>
+								</fileset>
+							</filesets>
+							<regexes>
+								<regex>
+									<pattern>^it is</pattern>
+									<replacement># it is</replacement>
+								</regex>
+							</regexes>
+						</configuration>
+					</execution>
 				</executions>
 			</plugin>
 			<plugin>
 				<artifactId>maven-enforcer-plugin</artifactId>
-				<version>1.4.1</version>
+				<version>3.0.0-M3</version>
 				<executions>
 					<execution>
 						<id>assert</id>
-						<goals><goal>enforce</goal></goals>
+						<goals>
+							<goal>enforce</goal>
+						</goals>
 						<configuration>
 							<rules>
-								<requireFilesExist>
-									<files>
-										<file>${project.build.directory}/replace-one/file1.txt</file>
-										<file>${project.build.directory}/noreplace-one/file1.txt</file>
-										<file>${project.build.directory}/noreplace-one/folder1/file11.txt</file>
-										<file>${project.build.directory}/noreplace-one/folder1/file12.txt</file>
-									</files>
-								</requireFilesExist>
 								<requireFilesDontExist>
 									<files>
 										<file>${project.build.directory}/replace-one/folder1/file11.txt</file>
 										<file>${project.build.directory}/replace-one/folder1/file12.txt</file>
 									</files>
 								</requireFilesDontExist>
+								<requireFileChecksum>
+									<file>${project.build.directory}/replace-one/file1.txt</file>
+									<checksum>6f1ed002ab5595859014ebf0951522d9</checksum>
+									<type>md5</type>
+								</requireFileChecksum>
+								<requireFileChecksum>
+									<file>${project.build.directory}/noreplace-one/file1.txt</file>
+									<checksum>6f1ed002ab5595859014ebf0951522d9</checksum>
+									<type>md5</type>
+								</requireFileChecksum>
+								<requireFileChecksum>
+									<file>${project.build.directory}/noreplace-one/folder1/file11.txt</file>
+									<checksum>72cd622783716925706f49d392089b48</checksum>
+									<type>md5</type>
+								</requireFileChecksum>
+								<requireFileChecksum>
+									<file>${project.build.directory}/noreplace-one/folder1/file12.txt</file>
+									<checksum>925a6e3bd25cdd61695aa55d008ab4d2</checksum>
+									<type>md5</type>
+								</requireFileChecksum>
+								<requireFileChecksum>
+									<file>${project.build.directory}/replace-linestart/folder1/file12.txt</file>
+									<checksum>fb1f2b040970526fc99b1339f22465f1</checksum>
+									<type>md5</type>
+								</requireFileChecksum>
 							</rules>
 						</configuration>
 					</execution>