diff --git a/src/test/resources/java/complex.case1.matching.java b/src/test/resources/java/complex.case1.matching.java
new file mode 100644
index 0000000..f957682
--- /dev/null
+++ b/src/test/resources/java/complex.case1.matching.java
@@ -0,0 +1 @@
+package com.enterprise.app;import java.util.List;import java.util.ArrayList;public class UserManager{private List<String>users;public UserManager(){this.users=new ArrayList<>();}public void addUser(String user){if(user!=null&&!user.isEmpty()){this.users.add(user);}}public boolean removeUser(String user){return this.users.remove(user);}public int getUserCount(){return this.users.size();}}
\ No newline at end of file
diff --git a/src/test/resources/java/complex.case2.failing.java b/src/test/resources/java/complex.case2.failing.java
new file mode 100644
index 0000000..131588b
--- /dev/null
+++ b/src/test/resources/java/complex.case2.failing.java
@@ -0,0 +1,22 @@
+package com.enterprise.app;
+
+import java.util.List;
+import java.util.ArrayList;
+
+public class UserManager {
+    private List<String> users;
+
+    public UserManager() {
+        this.users = new ArrayList<>();
+    }
+
+    public void addUser(String user, String role) {
+        if (user != null && !user.isEmpty()) {
+            this.users.add(user);
+        }
+    }
+
+    public int getUserCount() {
+        return this.users.size();
+    }
+}
diff --git a/src/test/resources/java/complex.case2.reformatted.java b/src/test/resources/java/complex.case2.reformatted.java
new file mode 100644
index 0000000..7082314
--- /dev/null
+++ b/src/test/resources/java/complex.case2.reformatted.java
@@ -0,0 +1,22 @@
+package com.enterprise.app;
+
+import java.util.List;
+import java.util.ArrayList;
+
+public class UserManager {
+    private List<String> users;
+
+    public UserManager() {
+        this.users = new ArrayList<>();
+    }
+
+    public void addUser(String user, String role) {
+        if (user != null && !user.isEmpty()) {
+            this.users.add(user);
+        }
+    }
+
+    public  int getUserCount() {
+        return this.users.size();
+    }
+}
diff --git a/src/test/resources/java/complex.expected.java b/src/test/resources/java/complex.expected.java
new file mode 100644
index 0000000..73ca518
--- /dev/null
+++ b/src/test/resources/java/complex.expected.java
@@ -0,0 +1,26 @@
+package com.enterprise.app;
+
+import java.util.List;
+import java.util.ArrayList;
+
+public class UserManager {
+    private List<String> users;
+
+    public UserManager() {
+        this.users = new ArrayList<>();
+    }
+
+    public void addUser(String user) {
+        if (user != null && !user.isEmpty()) {
+            this.users.add(user);
+        }
+    }
+
+    public boolean removeUser(String user) {
+        return this.users.remove(user);
+    }
+
+    public int getUserCount() {
+        return this.users.size();
+    }
+}
diff --git a/src/test/resources/java/insdel.case1.failing.java b/src/test/resources/java/insdel.case1.failing.java
new file mode 100644
index 0000000..37d8829
--- /dev/null
+++ b/src/test/resources/java/insdel.case1.failing.java
@@ -0,0 +1,12 @@
+package com.example;
+
+public class Calculator {
+    public int add(int a, int b, int c) {
+        int result = a + b + c;
+        return result;
+    }
+
+    public int multiply(int a, int b) {
+        return a * b;
+    }
+}
diff --git a/src/test/resources/java/insdel.case1.reformatted.java b/src/test/resources/java/insdel.case1.reformatted.java
new file mode 100644
index 0000000..37d8829
--- /dev/null
+++ b/src/test/resources/java/insdel.case1.reformatted.java
@@ -0,0 +1,12 @@
+package com.example;
+
+public class Calculator {
+    public int add(int a, int b, int c) {
+        int result = a + b + c;
+        return result;
+    }
+
+    public int multiply(int a, int b) {
+        return a * b;
+    }
+}
diff --git a/src/test/resources/java/insdel.expected.java b/src/test/resources/java/insdel.expected.java
new file mode 100644
index 0000000..e412015
--- /dev/null
+++ b/src/test/resources/java/insdel.expected.java
@@ -0,0 +1,12 @@
+package com.example;
+
+public class Calculator {
+    public int add(int a, int b) {
+        int result = a + b;
+        return result;
+    }
+
+    public int subtract(int a, int b) {
+        return a - b;
+    }
+}
diff --git a/src/test/resources/java/multiline.case1.matching.java b/src/test/resources/java/multiline.case1.matching.java
new file mode 100644
index 0000000..b8f4640
--- /dev/null
+++ b/src/test/resources/java/multiline.case1.matching.java
@@ -0,0 +1 @@
+public class MultilineTest{public void doSomething(int x,int y){if(x>y){System.out.println("x is greater");}else{System.out.println("y is greater or equal");}}}
\ No newline at end of file
diff --git a/src/test/resources/java/multiline.expected.java b/src/test/resources/java/multiline.expected.java
new file mode 100644
index 0000000..03165d5
--- /dev/null
+++ b/src/test/resources/java/multiline.expected.java
@@ -0,0 +1,9 @@
+public class MultilineTest {
+    public void doSomething(int x, int y) {
+        if (x > y) {
+            System.out.println("x is greater");
+        } else {
+            System.out.println("y is greater or equal");
+        }
+    }
+}
diff --git a/src/test/resources/java/whitespace.case1.matching.java b/src/test/resources/java/whitespace.case1.matching.java
new file mode 100644
index 0000000..7a0fb58
--- /dev/null
+++ b/src/test/resources/java/whitespace.case1.matching.java
@@ -0,0 +1 @@
+public class WhitespaceTest{ public int calc ( int x , int y ) { int z = ( x+y )*2 ; return z ; } }
\ No newline at end of file
diff --git a/src/test/resources/java/whitespace.expected.java b/src/test/resources/java/whitespace.expected.java
new file mode 100644
index 0000000..80eeea0
--- /dev/null
+++ b/src/test/resources/java/whitespace.expected.java
@@ -0,0 +1,6 @@
+public class WhitespaceTest {
+    public int calc(int x, int y) {
+        int z = (x + y) * 2;
+        return z;
+    }
+}