diff --git a/pom.xml b/pom.xml
index eeec0ec..f54e9b9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -450,6 +450,12 @@
             <version>5.20.0</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-junit-jupiter</artifactId>
+            <version>5.20.0</version>
+            <scope>test</scope>
+        </dependency>
         <!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-params -->
         <dependency>
             <groupId>org.junit.jupiter</groupId>
diff --git a/src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/impl/FileFilterTest.java b/src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/impl/FileFilterTest.java
new file mode 100644
index 0000000..f06582c
--- /dev/null
+++ b/src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/impl/FileFilterTest.java
@@ -0,0 +1,71 @@
+package at.pcgamingfreaks.mkvaudiosubtitlechanger.impl;
+
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.Config;
+import at.pcgamingfreaks.mkvaudiosubtitlechanger.util.DateUtils;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+import org.mockito.Mock;
+import org.mockito.MockedStatic;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import java.io.File;
+import java.nio.file.Path;
+import java.nio.file.attribute.BasicFileAttributes;
+import java.util.Date;
+import java.util.List;
+import java.util.regex.Pattern;
+import java.util.stream.Stream;
+
+import static at.pcgamingfreaks.mkvaudiosubtitlechanger.util.PathUtils.TEST_FILE;
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.Mockito.*;
+
+@ExtendWith(MockitoExtension.class)
+class FileFilterTest {
+    @Mock(strictness = Mock.Strictness.LENIENT)
+    File file;
+
+    @Mock(strictness = Mock.Strictness.LENIENT)
+    BasicFileAttributes attributes;
+
+    @BeforeEach
+    void beforeEach() {
+
+    }
+
+    private static Stream<Arguments> accept() {
+        return Stream.of(
+                Arguments.of("~/video.mkv", new String[]{".mkv"}, null, null, ".*", true),
+                Arguments.of("~/video.mp4", new String[]{".mkv"}, null, null, ".*", false),
+
+                Arguments.of("~/video.mkv", new String[]{".mkv"}, null, null, "v.*", true),
+                Arguments.of("~/video.mkv", new String[]{".mkv"}, null, null, "a.*", false),
+
+                Arguments.of("~/video.mkv", new String[]{".mkv"}, new Date(System.currentTimeMillis() - 1000), new Date(), ".*", false),
+                Arguments.of("~/video.mkv", new String[]{".mkv"}, new Date(), new Date(System.currentTimeMillis() - 1000), ".*", true)
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource
+    void accept(String path, String[] args, Date fileCreationDate, Date filterDate, String pattern, boolean expected) {
+        when(file.getAbsolutePath()).thenReturn(path);
+        when(file.getName()).thenReturn(List.of(path.split("/")).get(1));
+        when(file.toPath()).thenReturn(Path.of(TEST_FILE));
+
+        Config.getInstance(true).setIncludePattern(Pattern.compile(pattern));
+        if (filterDate != null) Config.getInstance().setFilterDate(filterDate);
+
+        try (MockedStatic<DateUtils> mockedFiles = Mockito.mockStatic(DateUtils.class)) {
+            mockedFiles
+                    .when(() -> DateUtils.convert(anyLong()))
+                    .thenReturn(fileCreationDate);
+
+            assertEquals(expected, FileFilter.accept(file, args));
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/util/TestUtil.java b/src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/util/TestUtil.java
index 00425c9..fddc343 100644
--- a/src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/util/TestUtil.java
+++ b/src/test/java/at/pcgamingfreaks/mkvaudiosubtitlechanger/util/TestUtil.java
@@ -1,33 +1,12 @@
 package at.pcgamingfreaks.mkvaudiosubtitlechanger.util;
 
-import at.pcgamingfreaks.mkvaudiosubtitlechanger.config.ValidationResult;
 import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.AttributeConfig;
-import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.ConfigProperty;
 import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.FileAttribute;
 import at.pcgamingfreaks.mkvaudiosubtitlechanger.model.FileInfo;
-import org.junit.jupiter.params.provider.Arguments;
 
-import java.util.Arrays;
 import java.util.Set;
 
-import static java.util.stream.Collectors.joining;
-
 public class TestUtil {
-    public static String yamlList(ConfigProperty main, ConfigProperty... child) {
-        return main.prop() + ":\n" + Arrays.stream(child)
-                .map(ConfigProperty::prop)
-                .collect(joining("\n", "  - ", ""));
-    }
-
-    public static <T> Arguments argumentsOf(ConfigProperty property, boolean required, T defaultValue, String yaml, String[] cmd,
-                                            ValidationResult result) {
-        return Arguments.of(property, required, defaultValue, yaml, cmd, result);
-    }
-
-    public static Arguments argumentsOf(ConfigProperty property, boolean required, boolean append, String yaml, String[] cmd,
-                                        ValidationResult result, int expectedSize) {
-        return Arguments.of(property, required, append, yaml, cmd, result, expectedSize);
-    }
 
     public static FileInfo createFileInfoAudio(Set<FileAttribute> defaultAudio, FileAttribute desiredAudio, AttributeConfig config) {
         FileInfo fileInfo = new FileInfo(null);