TestFunctionInvocation fix

Author: dajh-horta

liquidjava-verifier/src/test/java/liquidjava/rj_language/ast/TestFunctionInvocation.java

@@ -1,14 +1,12 @@
 package liquidjava.rj_language.ast;
 
-import java.util.Arrays;
-
 import static org.junit.Assert.assertTrue;
-
-import liquidjava.rj_language.opt.Test;
+import org.junit.Test;
+import java.util.Arrays;
 
 public class TestFunctionInvocation {
     @Test
-    public void testFunctionInvocationEqualsAndHashcode(){
+    public void testFunctionInvocationEqualsAndHashcode() {
         Expression exp1 = new LiteralString("./testFiles/file.txt");
         Expression exp2 = new LiteralString("./testFiles/file_fake.txt");
 
@@ -19,5 +17,5 @@ public void testFunctionInvocationEqualsAndHashcode(){
         assertTrue(f1.equals(f2) && !f1.equals(f3));
         assertTrue(f1.hashCode() == f2.hashCode() && f1.hashCode() != f3.hashCode());
     }
-    
+
 }