Tester script for proto added

tester.ps1

+function test([string]$testfile, [string]$expectedfile) {
+    $expResult = cat $expectedfile
+
+    $input = cat $testfile
+    $output = echo $input | java -cp .\class\ killer_sokoban.Main
+
+    $diff = compare $output $expResult
+
+    if ($diff.Length -eq 0) {
+        echo "Test with test file $testfile passed."
+    } else {
+        echo "Test with test file $testfile FAILED!"
+        echo "Got:"
+        echo "-------------------------------------"
+        echo $output
+        echo "Expected:"
+        echo "-------------------------------------"
+        echo $expResult
+    }
+}
+
+function testAll() {
+    $tfiles = dir -fi "*.in" -Name
+
+    foreach ($item in $tfiles) {
+        $temp = $item.Substring(0, $item.LastIndexOf('.'))
+
+        test $item "$temp.out"
+    }
+}
+
+#main
+
+if ($args.Count -eq 0) {
+    testAll
+} elseif($args.Count -eq 2) {
+    test $args[0] $args[1]
+} else {
+    echo "Wrong number of arguments!"
+}
+