Merge pull request 'NewParser' (#16) from NewParser into main

Reviewed-on: #16
Reviewed-by: Johannes Ehlert <i22005@hb.dhbw-stuttgart.de>

src/main/java/ast/ClassNode.java

@@ -15,30 +15,20 @@ public class ClassNode implements ASTNode, Visitable {
     public AccessModifierNode accessType;
     public String identifier;
     public List<MemberNode> members = new ArrayList<>();
-    public boolean hasConstructor;
 
-    public ClassNode() {}
+    public ClassNode(){
+
+    }
 
     public ClassNode(String accessType, String identifier){
         this.accessType = new AccessModifierNode(accessType);
         this.identifier = identifier;
-        hasConstructor = false;
     }
 
     public void addMember(MemberNode member) {
-        if (member instanceof ConstructorNode) {
-            this.hasConstructor = true;
-        }
         members.add(member);
     }
 
-    public void ensureConstructor(){
-        if(!hasConstructor) {
-            ConstructorNode constructor = new ConstructorNode(new AccessModifierNode("public"), identifier);
-            members.addFirst(constructor);
-        }
-    }
-
     public List<MethodNode> getMethods(){
         List<MethodNode> methods = new ArrayList<>();
         for (MemberNode member : members) {

src/main/java/ast/members/ConstructorNode.java

@@ -13,11 +13,6 @@ public class ConstructorNode extends MethodNode  {
     public List<ParameterNode> parameters = new ArrayList<>();
     public BlockNode block;
 
-    public ConstructorNode(AccessModifierNode accessType, String identifier) {
-        this.accessType = accessType;
-        this.identifier = identifier;
-    }
-
     public ConstructorNode(String accessType, String identifier, BlockNode block) {
         this.accessType = new AccessModifierNode(accessType);
         this.identifier = identifier;

src/main/java/parser/astBuilder/ASTBuilder.java

@@ -44,11 +44,32 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
 
     @Override
     public ASTNode visitClassDeclaration(SimpleJavaParser.ClassDeclarationContext ctx) {
-        ClassNode classNode = new ClassNode(ctx.AccessModifier().getText(), ctx.Identifier().getText());
+        ClassNode classNode;
-        for (SimpleJavaParser.MemberDeclarationContext member : ctx.memberDeclaration()) {
+        if(ctx.AccessModifier() != null){
-            classNode.addMember((MemberNode) visit(member));
+            classNode = new ClassNode(ctx.AccessModifier().getText(), ctx.Identifier().getText());
         }
-        classNode.ensureConstructor();
+        else{
+            classNode = new ClassNode("public", ctx.Identifier().getText());
+        }
+
+        boolean hasConstructor = false;
+
+        for (SimpleJavaParser.MemberDeclarationContext member : ctx.memberDeclaration()) {
+            MemberNode memberNode = (MemberNode) visit(member);
+            if(memberNode != null) {
+                if(memberNode instanceof ConstructorNode){
+                    hasConstructor = true;
+                }
+                classNode.addMember(memberNode);
+            }
+        }
+
+        if(!hasConstructor){
+            BlockNode blockNode = new BlockNode();
+            blockNode.addStatement(new ReturnNode(null));
+            classNode.members.addFirst(new ConstructorNode("public", ctx.Identifier().getText(), blockNode));
+        }
+
         return classNode;
     }
 
@@ -72,29 +93,54 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
             return mainMethod;
         } else {
             if(ctx.type() != null) {
-                MethodNode methodNode = new MethodNode(ctx.AccessModifier().getText(), createTypeNode(ctx.type().getText()), false, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+                if(ctx.AccessModifier() != null) {
-                if(ctx.parameterList() != null) {
+                    MethodNode methodNode = new MethodNode(ctx.AccessModifier().getText(), createTypeNode(ctx.type().getText()), false, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
-                    for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                    if(ctx.parameterList() != null) {
-                        methodNode.addParameter((ParameterNode) visit(parameter));
+                        for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                            methodNode.addParameter((ParameterNode) visit(parameter));
+                        }
                     }
+                    return methodNode;
+                } else {
+                    MethodNode methodNode = new MethodNode("public", createTypeNode(ctx.type().getText()), false, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+                    if(ctx.parameterList() != null) {
+                        for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                            methodNode.addParameter((ParameterNode) visit(parameter));
+                        }
+                    }
+                    return methodNode;
                 }
-                return methodNode;
             } else {
-                MethodNode methodNode = new MethodNode(ctx.AccessModifier().getText(), null, true, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+                if(ctx.AccessModifier() != null) {
-                if(ctx.parameterList() != null) {
+                    MethodNode methodNode = new MethodNode(ctx.AccessModifier().getText(), null, true, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
-                    for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                    if(ctx.parameterList() != null) {
-                        methodNode.addParameter((ParameterNode) visit(parameter));
+                        for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                            methodNode.addParameter((ParameterNode) visit(parameter));
+                        }
                     }
+                    methodNode.block.addStatement(new ReturnNode(null));
+                    return methodNode;
+                } else {
+                    MethodNode methodNode = new MethodNode("public", null, true, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+                    if(ctx.parameterList() != null) {
+                        for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                            methodNode.addParameter((ParameterNode) visit(parameter));
+                        }
+                    }
+                    methodNode.block.addStatement(new ReturnNode(null));
+                    return methodNode;
                 }
-                methodNode.block.addStatement(new ReturnNode(null));
-                return methodNode;
             }
         }
     }
 
     @Override
     public ASTNode visitFieldDeclaration(SimpleJavaParser.FieldDeclarationContext ctx) {
-        return new FieldNode(new AccessModifierNode(ctx.AccessModifier().getText()), createTypeNode(ctx.type().getText()), ctx.Identifier().getText());
+        if(ctx.AccessModifier() != null) {
+            return new FieldNode(new AccessModifierNode(ctx.AccessModifier().getText()), createTypeNode(ctx.type().getText()), ctx.Identifier().getText());
+        } else {
+            return new FieldNode(new AccessModifierNode("public"), createTypeNode(ctx.type().getText()), ctx.Identifier().getText());
+        }
     }
 
     @Override
@@ -184,10 +230,17 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
             crement = (IStatementNode) visit(ctx.statementExpression(i));
         }
 
-        BlockNode forBlock = (BlockNode) visit(ctx.blockStatement());
+        BlockNode forBlock = new BlockNode();
+
+        BlockNode forStatements = (BlockNode) visit(ctx.blockStatement());
+        if(forStatements != null) {
+            forBlock.addStatement((IStatementNode) forStatements);
+        }
 
         if(crement != null){
-            forBlock.addStatement((crement));
+            BlockNode forCrement = new BlockNode();
+            forCrement.addStatement((crement));
+            forBlock.addStatement(forCrement);
         }
 
         WhileNode While = new WhileNode(condition, forBlock);
@@ -259,7 +312,12 @@ public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
 
     @Override
     public ASTNode visitMethodCall(SimpleJavaParser.MethodCallContext ctx) {
-        MethodCallNode methodCallStatementExpressionNode = new MethodCallNode((TargetNode) visit(ctx.target()), ctx.Identifier().getText());
+        MethodCallNode methodCallStatementExpressionNode;
+        if(ctx.target() != null) {
+            methodCallStatementExpressionNode = new MethodCallNode((TargetNode) visit(ctx.target()), ctx.Identifier().getText());
+        } else {
+            methodCallStatementExpressionNode = new MethodCallNode(null, ctx.Identifier().getText());
+        }
         for(SimpleJavaParser.ChainedMethodContext chainedMethod : ctx.chainedMethod()) {
             methodCallStatementExpressionNode.addChainedMethod((ChainedMethodNode) visit(chainedMethod));
         }

src/main/java/parser/generated/SimpleJavaBaseListener.java

@@ -1,4 +1,4 @@
-// Generated from C:/Users/Maxi/Documents/DHBW/Compilerbau/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
+// Generated from C:/Users/janni/Desktop/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
 package parser.generated;
 
 import org.antlr.v4.runtime.ParserRuleContext;

src/main/java/parser/generated/SimpleJavaBaseVisitor.java

@@ -1,4 +1,4 @@
-// Generated from C:/Users/Maxi/Documents/DHBW/Compilerbau/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
+// Generated from C:/Users/janni/Desktop/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
 package parser.generated;
 import org.antlr.v4.runtime.tree.AbstractParseTreeVisitor;
 

src/main/java/parser/generated/SimpleJavaLexer.java

@@ -1,4 +1,4 @@
-// Generated from C:/Users/Maxi/Documents/DHBW/Compilerbau/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
+// Generated from C:/Users/janni/Desktop/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
 package parser.generated;
 import org.antlr.v4.runtime.Lexer;
 import org.antlr.v4.runtime.CharStream;

src/main/java/parser/generated/SimpleJavaListener.java

@@ -1,4 +1,4 @@
-// Generated from C:/Users/Maxi/Documents/DHBW/Compilerbau/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
+// Generated from C:/Users/janni/Desktop/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
 package parser.generated;
 import org.antlr.v4.runtime.tree.ParseTreeListener;
 

src/main/java/parser/generated/SimpleJavaParser.java

@@ -1,4 +1,4 @@
-// Generated from C:/Users/Maxi/Documents/DHBW/Compilerbau/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
+// Generated from C:/Users/janni/Desktop/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
 package parser.generated;
 import org.antlr.v4.runtime.atn.*;
 import org.antlr.v4.runtime.dfa.DFA;

src/main/java/parser/generated/SimpleJavaVisitor.java

@@ -1,4 +1,4 @@
-// Generated from C:/Users/Maxi/Documents/DHBW/Compilerbau/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
+// Generated from C:/Users/janni/Desktop/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
 package parser.generated;
 import org.antlr.v4.runtime.tree.ParseTreeVisitor;
 

src/test/java/parser/AstBuilderTest.java

@@ -1,57 +1,405 @@
 package parser;
 
+
+import ast.ASTNode;
 import ast.ClassNode;
 import ast.ProgramNode;
+import ast.expressions.IExpressionNode;
+import ast.expressions.unaryexpressions.MemberAccessNode;
+import ast.expressions.unaryexpressions.UnaryNode;
+import ast.members.ConstructorNode;
+import ast.members.FieldNode;
+import ast.members.MemberNode;
+import ast.members.MethodNode;
+import ast.parameters.ParameterNode;
+import ast.statementexpressions.AssignNode;
+import ast.statementexpressions.AssignableNode;
+import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
+import ast.statements.BlockNode;
+import ast.statements.IStatementNode;
+import ast.statements.ReturnNode;
+import ast.type.AccessModifierNode;
+import ast.type.EnumValueNode;
+import ast.type.ValueNode;
+import ast.type.type.BaseType;
+import ast.type.type.ITypeNode;
+import ast.type.type.TypeEnum;
+import com.fasterxml.jackson.annotation.JsonFormat;
 import org.antlr.v4.runtime.CharStream;
 import org.antlr.v4.runtime.CharStreams;
 import org.antlr.v4.runtime.CommonTokenStream;
 import org.antlr.v4.runtime.tree.ParseTree;
+import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 import parser.astBuilder.ASTBuilder;
 import parser.generated.SimpleJavaLexer;
 import parser.generated.SimpleJavaParser;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
+import java.io.IOException;
+import java.lang.reflect.Member;
 
-public class AstBuilderTest {
+import static org.assertj.core.api.Assertions.assertThat;
+
+@DisplayName("Untyped Abstract Syntax Tree")
+class AstBuilderTest {
 
     @Test
-    public void astBuilderTest() {
+    @DisplayName("Empty Class Test")
-        // ---------------- Leere Klasse nachgebaut ----------------
+    public void emptyClassTest(){
+        ClassNode emptyClass = Helper.generateEmptyClass("TestClass");
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(emptyClass);
 
-        ProgramNode expectedASTEmptyClass = new ProgramNode();
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/EmptyClass.java");
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
 
-        // public class Name {}
+    @Test
-        ClassNode nameClass = new ClassNode("public", "Name");
+    @DisplayName("Multiple Empty Classes Test")
+    public void multipleEmptyClassesTest() {
+        ClassNode class1 = Helper.generateEmptyClass("TestClass1");
+        ClassNode class2 = Helper.generateEmptyClass("TestClass2");
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+        expected.addClass(class2);
 
-        expectedASTEmptyClass.addClass(nameClass);
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/MultipleClasses.java");
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
 
+    @Test
+    @DisplayName("Empty Class Test with Constructor")
+    public void emptyClassWithConstructorTest() {
+        ClassNode class1 = Helper.generateEmptyClass("TestClass");
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
 
-        // ---------------- Leere Klasse erzeugt ----------------
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/EmptyClassWithConstructor.java");
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
 
-        // init
+    @Test
-        CharStream inputCharStream = CharStreams.fromString("public class Name {}");
+    @DisplayName("Field Test")
-        SimpleJavaLexer lexer = new SimpleJavaLexer(inputCharStream);
+    public void fieldTest() {
-        CommonTokenStream tokenStream = new CommonTokenStream(lexer);
+        ClassNode class1 = Helper.generateEmptyClass("TestClass");
-        tokenStream.fill();
+        class1.addMember(new FieldNode(null, new BaseType(TypeEnum.INT), "a"));
 
-        /* Parser -> Parsetree */
+        ProgramNode expected = new ProgramNode();
-        SimpleJavaParser parser = new SimpleJavaParser(tokenStream);
+        expected.addClass(class1);
-        ParseTree parseTreeEmptyClass = parser.program(); // parse the input
 
-        /* AST builder -> AST */
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/Field.java");
-        ASTBuilder astBuilder = new ASTBuilder();
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
-        ProgramNode actualASTEmptyClass = (ProgramNode) new ASTBuilder().visit(parseTreeEmptyClass);
+    }
 
+    @Test
+    @DisplayName("Field Test with Accessmodifier")
+    public void fieldTestWithModifier() {
+        ClassNode class1 = Helper.generateEmptyClass("TestClass");
+        class1.addMember(new FieldNode(new AccessModifierNode("public"), new BaseType(TypeEnum.INT), "a"));
 
-        // ---------------- Vergleichen ----------------
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
 
-        String expectedASTasString = expectedASTEmptyClass.toString();
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/FieldWithAccessModifier.java");
-        String actualASTasString = new ASTBuilder().visit(parseTreeEmptyClass).toString();
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
 
-        // Wie vergleiche ich das?
+    @Test
-        assertEquals(expectedASTasString, actualASTasString);
+    @DisplayName("Commments Ignore Test")
-        assertEquals(expectedASTEmptyClass, actualASTEmptyClass);
+    public void commmentsIgnoreTest(){
+        ClassNode class1 = Helper.generateEmptyClass("TestClass");
+        class1.addMember(new FieldNode(new AccessModifierNode("private"), new BaseType(TypeEnum.INT), "a"));
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/Comments.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Constructor Paramerter Test")
+    public void constructorParameterTest(){
+        BlockNode block = new BlockNode();
+        block.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "TestClass", block);
+        constructor.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+        constructor.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "b"));
+
+        ClassNode class1 = new ClassNode("public", "TestClass");
+        class1.addMember(constructor);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/ConstructorParameter.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("This Dot Test")
+    public void thisDotTest(){
+        BlockNode block = new BlockNode();
+        MemberAccessNode memberAccess = new MemberAccessNode(true);
+        memberAccess.addIdentifier("a");
+
+        AssignableNode assignable = new AssignableNode(memberAccess);
+
+        ValueNode value = new ValueNode(EnumValueNode.INT_VALUE, "1");
+        IExpressionNode expression = new UnaryNode(value);
+
+        block.addStatement(new AssignNode(assignable, expression));
+        block.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "TestClass", block);
+
+        ClassNode class1 = new ClassNode("public", "TestClass");
+        class1.addMember(new FieldNode(new AccessModifierNode("public"), new BaseType(TypeEnum.INT), "a"));
+        class1.addMember(constructor);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/ThisDot.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Constructor This Dot Test")
+    public void constructorThisDotTest(){
+        BlockNode block = new BlockNode();
+        MemberAccessNode memberAccess = new MemberAccessNode(true);
+        memberAccess.addIdentifier("a");
+
+        AssignableNode assignable = new AssignableNode(memberAccess);
+
+        IExpressionNode expression = new UnaryNode("a");
+
+        block.addStatement(new AssignNode(assignable, expression));
+        block.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "TestClass", block);
+        constructor.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+
+        ClassNode class1 = new ClassNode("public", "TestClass");
+        class1.addMember(new FieldNode(new AccessModifierNode("private"), new BaseType(TypeEnum.INT), "a"));
+        class1.addMember(constructor);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/ConstructorThisDot.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Void Methoden Test")
+    public void voidMethodenTest(){
+        ClassNode class1 = Helper.generateEmptyClass("TestClass");
+        BlockNode block = new BlockNode();
+        block.addStatement(new ReturnNode(null));
+        class1.addMember(new MethodNode("public", null, true, "test", block));
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/VoidMethod.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Constructor Method call Test")
+    public void constructorMethodCallTest(){
+        BlockNode blockCon = new BlockNode();
+        MemberAccessNode memberAccess = new MemberAccessNode(true);
+        memberAccess.addIdentifier("a");
+
+        AssignableNode assignable = new AssignableNode(memberAccess);
+
+        IExpressionNode expression = new UnaryNode(new MethodCallNode(null, "testMethod"));
+
+        blockCon.addStatement(new AssignNode(assignable, expression));
+        blockCon.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "TestClass", blockCon);
+
+        BlockNode blockMethod = new BlockNode();
+        blockMethod.addStatement(new ReturnNode(new UnaryNode(new ValueNode(EnumValueNode.INT_VALUE, "1"))));
+        MethodNode method = new MethodNode("public", new BaseType(TypeEnum.INT), false, "testMethod", blockMethod);
+
+        ClassNode class1 = new ClassNode("public", "TestClass");
+        class1.addMember(new FieldNode(new AccessModifierNode("public"), new BaseType(TypeEnum.INT), "a"));
+        class1.addMember(constructor);
+        class1.addMember(method);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/ConstructorMethodCall.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Constructor Method call Parameters Test")
+    public void constructorMethodCallParametersTest(){
+        BlockNode blockCon = new BlockNode();
+        MemberAccessNode memberAccess = new MemberAccessNode(true);
+        memberAccess.addIdentifier("a");
+
+        AssignableNode assignable = new AssignableNode(memberAccess);
+
+        MethodCallNode methodCall = new MethodCallNode(null, "testMethod");
+        methodCall.addExpression(new UnaryNode("a"));
+        IExpressionNode expression = new UnaryNode(methodCall);
+
+        blockCon.addStatement(new AssignNode(assignable, expression));
+        blockCon.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "TestClass", blockCon);
+        constructor.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+
+        BlockNode blockMethod = new BlockNode();
+        blockMethod.addStatement(new ReturnNode(new UnaryNode("a")));
+        MethodNode method = new MethodNode("public", new BaseType(TypeEnum.INT), false, "testMethod", blockMethod);
+        method.addParameter(new ParameterNode(new BaseType(TypeEnum.INT), "a"));
+
+        ClassNode class1 = new ClassNode("public", "TestClass");
+        class1.addMember(new FieldNode(new AccessModifierNode("public"), new BaseType(TypeEnum.INT), "a"));
+        class1.addMember(constructor);
+        class1.addMember(method);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/ConstructorMethodCallParameters.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Char Test")
+    public void charTest(){
+        BlockNode blockCon = new BlockNode();
+        MemberAccessNode memberAccess = new MemberAccessNode(true);
+        memberAccess.addIdentifier("a");
+
+        AssignableNode assignable = new AssignableNode(memberAccess);
+
+        MethodCallNode methodCall = new MethodCallNode(null, "testMethod");
+        methodCall.addExpression(new UnaryNode("a"));
+        IExpressionNode expression = new UnaryNode(methodCall);
+
+        blockCon.addStatement(new AssignNode(assignable, expression));
+        blockCon.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "TestClass", blockCon);
+        constructor.addParameter(new ParameterNode(new BaseType(TypeEnum.CHAR), "a"));
+
+        BlockNode blockMethod = new BlockNode();
+        blockMethod.addStatement(new ReturnNode(new UnaryNode("a")));
+        MethodNode method = new MethodNode("public", new BaseType(TypeEnum.CHAR), false, "testMethod", blockMethod);
+        method.addParameter(new ParameterNode(new BaseType(TypeEnum.CHAR), "a"));
+
+        ClassNode class1 = new ClassNode("public", "TestClass");
+        class1.addMember(new FieldNode(new AccessModifierNode("public"), new BaseType(TypeEnum.CHAR), "a"));
+        class1.addMember(constructor);
+        class1.addMember(method);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/Char.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Null Test")
+    public void nullTest(){
+        BlockNode blockCon = new BlockNode();
+        MemberAccessNode memberAccess = new MemberAccessNode(true);
+        memberAccess.addIdentifier("a");
+
+        AssignableNode assignable = new AssignableNode(memberAccess);
+
+        blockCon.addStatement(new AssignNode(assignable, new UnaryNode(new ValueNode(EnumValueNode.NULL_VALUE, "null"))));
+        blockCon.addStatement(new ReturnNode(null));
+        ConstructorNode constructor = new ConstructorNode("public", "TestClass", blockCon);
+
+        ClassNode class1 = new ClassNode("public", "TestClass");
+        class1.addMember(new FieldNode(new AccessModifierNode("public"), new BaseType(TypeEnum.INT), "a"));
+        class1.addMember(constructor);
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(class1);
+
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/Null.java");
+
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Self Reference Test")
+    public void selfReferneceTest(){
+
+        //assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Variable Compare Test")
+    public void variableCompareTest(){
+
+        //assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Variable Calculation Test")
+    public void variableCalculationTest(){
+
+        //assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Main Method Test")
+    public void mainMethodTest(){
+
+        //assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("While Test")
+    public void whileTest(){
+
+        //assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("Do While Test")
+    public void doWhileTest(){
+
+        //assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    @Test
+    @DisplayName("For Test")
+    public void forTest(){
+
+        //assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
+    }
+
+    //Noch nicht speziell Increment nur zum Development Testen per Debug
+    @Test
+    @DisplayName("Increment Test")
+    public void incrementTest(){
+        ClassNode classNode = Helper.generateEmptyClass("TestClass");
+        classNode.addMember(new FieldNode(new AccessModifierNode("public"), new BaseType(TypeEnum.INT), "a"));
+
+        ProgramNode expected = new ProgramNode();
+        expected.addClass(classNode);
+
+        ASTNode actual = Helper.generateAST("src/test/resources/input/javaCases/Increment.java");
+        assertThat(actual).isEqualToComparingFieldByFieldRecursively(expected);
     }
 
 
@@ -65,39 +413,4 @@ public class AstBuilderTest {
 
 
 
-
+}
-
-    // ---------------- Alter CompilerInput nachgebaut ----------------
-    // ProgramNode startNode = new ProgramNode();
-    // public class CompilerInput {}
-    // ClassNode compilerInputClass = new ClassNode(new AccessTypeNode(EnumAccessTypeNode.PUBLIC), "CompilerInput");
-    // public int a;
-    //  compilerInputClass.addMember(new FieldNode(new AccessTypeNode(EnumAccessTypeNode.PUBLIC), new BaseTypeNode(EnumTypeNode.INT), "a"));
-    // public static int testMethod(char x) { return 0; }
-      /*  compilerInputClass.addMember(
-                new MethodNode(
-                        new AccessTypeNode(EnumAccessTypeNode.PUBLIC),
-                        new BaseTypeNode(EnumTypeNode.INT),
-                        "testMethod",
-                        new ParameterListNode(List.of(new ParameterNode(new BaseTypeNode(EnumTypeNode.CHAR), "x"))),
-                        List.of(new ReturnStatementNode(new LiteralNode(0)))
-                        ));
-
-        ClassNode testClass = new ClassNode(new AccessTypeNode(EnumAccessTypeNode.PUBLIC), "Test");
-        testClass.addMember(
-                new MethodNode(
-                        new AccessTypeNode(EnumAccessTypeNode.PUBLIC),
-                        new BaseTypeNode(EnumTypeNode.INT),
-                        "testMethod",
-                        new ParameterListNode(List.of(new ParameterNode(new BaseTypeNode(EnumTypeNode.CHAR), "x"), new ParameterNode(new BaseTypeNode(EnumTypeNode.INT), "a"))),
-                        List.of(new ReturnStatementNode(new LiteralNode(0)))
-                )
-        );
-
-       */
-
-    //compilerInputClass.addClass(testClass);
-
-    //  startNode.addClass(compilerInputClass);
-    // startNode.addClass(testClass);
-}

src/test/java/parser/Helper.java

@@ -0,0 +1,47 @@
+package parser;
+
+import ast.ASTNode;
+import ast.ClassNode;
+import ast.ProgramNode;
+import ast.members.ConstructorNode;
+import ast.members.MemberNode;
+import ast.statements.BlockNode;
+import ast.statements.ReturnNode;
+import ast.type.AccessModifierNode;
+import org.antlr.v4.runtime.CharStream;
+import org.antlr.v4.runtime.CharStreams;
+import org.antlr.v4.runtime.CommonTokenStream;
+import org.antlr.v4.runtime.tree.ParseTree;
+import parser.astBuilder.ASTBuilder;
+import parser.generated.SimpleJavaLexer;
+import parser.generated.SimpleJavaParser;
+
+import java.io.IOException;
+
+public class Helper {
+    public static ASTNode generateAST(String filePath) {
+        CharStream testFile = null;
+        try {
+            testFile = CharStreams.fromFileName(filePath);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+        SimpleJavaLexer lexer = new SimpleJavaLexer(testFile);
+        CommonTokenStream tokenStream = new CommonTokenStream(lexer);
+        tokenStream.fill();
+        SimpleJavaParser parser = new SimpleJavaParser(tokenStream);
+        ParseTree parseTree = parser.program();
+        ASTBuilder astBuilder = new ASTBuilder();
+
+        return astBuilder.visit(parseTree);
+    }
+
+    public static ClassNode generateEmptyClass(String className) {
+        BlockNode blockNode = new BlockNode();
+        blockNode.addStatement(new ReturnNode(null));
+        MemberNode constructor = new ConstructorNode("public",className, blockNode);
+        ClassNode classNode = new ClassNode("public", className);
+        classNode.addMember(constructor);
+        return classNode;
+    }
+}

src/test/resources/input/javaCases/Char.java

@@ -0,0 +1,12 @@
+class TestClass{
+
+    char a;
+
+    public TestClass(char a){
+        this.a = testMethod(a);
+    }
+
+    char testMethod(char a){
+        return a;
+    }
+}

src/test/resources/input/javaCases/Comments.java

@@ -0,0 +1,8 @@
+/*
+
+    Mutliple Line Comment. Ignore
+
+ */
+class TestClass{
+    private int a; // Ignore
+}

src/test/resources/input/javaCases/ConstructorMethodCall.java

@@ -0,0 +1,12 @@
+class TestClass {
+
+    int a;
+
+    public TestClass(){
+        this.a = testMethod();
+    }
+
+    int testMethod(){
+        return 1;
+    }
+}

src/test/resources/input/javaCases/ConstructorMethodCallParameters.java

@@ -0,0 +1,12 @@
+class TestClass {
+
+    int a;
+
+    public TestClass(int a){
+        this.a = testMethod(a);
+    }
+
+    int testMethod(int a){
+        return a;
+    }
+}

src/test/resources/input/javaCases/ConstructorParameter.java

@@ -0,0 +1,5 @@
+class TestClass {
+    public TestClass(int a, int b){
+
+    }
+}

src/test/resources/input/javaCases/ConstructorThisDot.java

@@ -0,0 +1,8 @@
+class TestClass{
+
+    private int a;
+
+    public TestClass(int a){
+        this.a = a;
+    }
+}

src/test/resources/input/javaCases/DoWhile.java

@@ -0,0 +1,10 @@
+class TestClass{
+
+    public TestClass(){
+        int i = 0;
+
+        do{
+            i++
+        }while(i < 10);
+    }
+}

src/test/resources/input/javaCases/EmptyClass.java

@@ -0,0 +1 @@
+class TestClass {}

src/test/resources/input/javaCases/EmptyClassWithConstructor.java

@@ -0,0 +1,5 @@
+public class TestClass {
+    public TestClass() {
+
+    }
+}

src/test/resources/input/javaCases/Field.java

@@ -0,0 +1,3 @@
+public class TestClass {
+    int a;
+}

src/test/resources/input/javaCases/FieldWithAccessModifier.java

@@ -0,0 +1,3 @@
+public class TestClass {
+    public int a;
+}

src/test/resources/input/javaCases/For.java

@@ -0,0 +1,8 @@
+class TestClass{
+
+    public TestClass(){
+        for(int i = 0; i < 10; i++){
+            int a;
+        }
+    }
+}

src/test/resources/input/javaCases/Increment.java

@@ -0,0 +1,12 @@
+public class Increment {
+
+    public int test;
+
+    public void increment(int p) {
+        test = p++;
+
+        for(int i = 1; i<=10, i++) {
+            int a = 5;
+        }
+    }
+}

src/test/resources/input/javaCases/MainMehod.java

@@ -0,0 +1,5 @@
+class TestClass{
+
+    public static void main(String[] args) {
+    }
+}

src/test/resources/input/javaCases/MultipleClasses.java

@@ -0,0 +1,3 @@
+class TestClass1 {}
+
+class TestClass2{}

src/test/resources/input/javaCases/Null.java

@@ -0,0 +1,8 @@
+class TestClass{
+
+    int a;
+
+    public TestClass(){
+        this.a = null;
+    }
+}

src/test/resources/input/javaCases/SelfReference.java

@@ -0,0 +1,18 @@
+class TestClass{
+
+    TestClass testClass;
+
+    int testMethod1() {
+        return this.testMethod2()
+    }
+
+    int testMethod2() {
+        return 1;
+    }
+
+    int testMehtod3(){
+        TestClass testClass1 = new TestClass();
+        return testClass1.testClass.testMethod1();
+    }
+
+}

src/test/resources/input/javaCases/ThisDot.java

@@ -0,0 +1,8 @@
+class TestClass{
+
+    public int a;
+
+    public TestClass() {
+        this.a = 1;
+    }
+}

src/test/resources/input/javaCases/VoidMethod.java

@@ -0,0 +1,3 @@
+class TestClass{
+    void test(){}
+}

src/test/resources/input/javaCases/While.java

@@ -0,0 +1,10 @@
+class TestClass{
+
+    public TestClass(){
+        int i = 10;
+
+        while ( i > 0){
+            i--;
+        }
+    }
+}

src/test/resources/input/javaCases/variableCalculationTest.java

@@ -0,0 +1,34 @@
+class TestClass{
+
+    int aPlusB(int a, int b){
+        return a + b;
+    }
+
+    int aMinusB(int a, int b){
+        return a - b;
+    }
+
+    int aTimeB(int a, int b){
+        return a * b;
+    }
+
+    int aDivB(int a, int b){
+        return a / b;
+    }
+
+    int colmplexCalc (int a, int b){
+        return a * (b / 1);
+    }
+
+    boolean aSmallerB (int a, int b){
+        return a < b;
+    }
+
+    boolean aGreaterB (int a, int b){
+        return a > b;
+    }
+
+    boolean aEqualsB (int a, int b){
+        return a == b;
+    }
+}

src/test/resources/input/javaCases/variableCompareTest.java

@@ -0,0 +1,30 @@
+class TestClass{
+
+    boolean true(){
+        return true;
+    }
+
+    boolean false(){
+        return false();
+    }
+
+    boolean trueAndTrue(){
+        return true && true;
+    }
+
+    boolean trueAndFalse(){
+        return true && true;
+    }
+
+    boolean falseAndFalse(){
+        return false && false;
+    }
+
+    boolean trueOrFalse(){
+        return true || false;
+    }
+
+    boolean falseOrFalse(){
+        return false || false;
+    }
+}