add regex context

Author: miya0001

features/bootstrap/support.php

@@ -2,6 +2,12 @@
 
 // Utility functions used by Behat steps
 
+function assertRegExp( $regex, $actual ) {
+	if ( ! preg_match( $regex, $actual ) ) {
+		throw new Exception( "Actual value: " . var_export( $actual, true ) );
+	}
+}
+
 function assertEquals( $expected, $actual ) {
 	if ( $expected != $actual ) {
 		throw new Exception( "Actual value: " . var_export( $actual, true ) );

features/steps/then.php

@@ -152,7 +152,7 @@ function ( $world, $stream, $operator, $goal_ver ) {
 			throw new Exception( $world->result );
 		}
 	}
-);	
+);
 
 $steps->Then( '/^the (.+) (file|directory) should (exist|not exist|be:|contain:|not contain:)$/',
 	function ( $world, $path, $type, $action, $expected = null ) {
@@ -199,6 +199,20 @@ function ( $world, $path, $type, $action, $expected = null ) {
 	}
 );
 
+$steps->Then( '/^the (.+) file should match (((\/.+\/)|(#.+#))([a-z]+)?)$/',
+function ( $world, $path, $expected = null ) {
+	$path = $world->replace_variables( $path );
+
+	// If it's a relative path, make it relative to the current test dir
+	if ( '/' !== $path[0] ) {
+		$path = $world->variables['RUN_DIR'] . "/$path";
+	}
+
+	$contents = file_get_contents( $path );
+	assertRegExp( $expected, $contents );
+}
+);
+
 $steps->Then( '/^an email should (be sent|not be sent)$/', function( $world, $expected ) {
 	if ( 'be sent' === $expected ) {
 		assertNotEquals( 0, $world->email_sends );