diff --git a/verarbeitung/Processing.py b/verarbeitung/Processing.py
index eccdca03b3155eca576cfec65a03a6d14e78d550..ab7db1d5c46193c14637f10e28fd163dee81b10e 100644
--- a/verarbeitung/Processing.py
+++ b/verarbeitung/Processing.py
@@ -27,11 +27,14 @@ from json_demo import output_to_json
 # TO-DO: Listenelemente auf Korrektheit überprüfen
 def initialize_nodes_list(doi_input_list, test_var):
     for pub_doi in doi_input_list:
+
+        # checks if its a test and chooses input function accordingly
         if(test_var):
             pub = input_test_func(pub_doi)
         else:
             pub = input(pub_doi)
 
+        # checks if publication already exists in nodes
         not_in_nodes = True
         for node in nodes:                                              # checks if a pub is already in nodes
             if (pub.doi_url == node.doi_url):
@@ -43,16 +46,22 @@ def initialize_nodes_list(doi_input_list, test_var):
         else:
             doi_input_list.remove(pub_doi)
 
+# adds inner edges between citations and references to edges
 def complete_inner_edges(test_var):
     for node in nodes:
+
+        # checks if its a test and chooses input function accordingly
         if (test_var):
             pub = input_test_func(node.doi_url)
         else:
             pub = input(node.doi_url)
+
+
         if (node.group == "depth"):
             for citation in pub.citations:
                 if (citation in nodes and [citation.doi_url, pub.doi_url] not in edges):
                     edges.append([citation.doi_url, pub.doi_url])
+
         if (node.group == "height"):
             for reference in pub.references:
                 for node in nodes:
@@ -65,6 +74,8 @@ def complete_inner_edges(test_var):
 # adds edges for citations between publications     
 def create_graph_structure_citations(pub, search_height, search_height_max):
     for citation in pub.citations:
+
+        # checks if publication already exists in nodes
         not_in_nodes = True
         for node in nodes:
             # checks every citation for duplication 
@@ -77,7 +88,7 @@ def create_graph_structure_citations(pub, search_height, search_height_max):
                 nodes.append(citation)
                 edges.append([citation.doi_url,pub.doi_url])
 
-        # adds only edge if citation already exists         
+        # adds only an edge (citation already exists)     
         elif [citation.doi_url,pub.doi_url] not in edges:
             edges.append([citation.doi_url,pub.doi_url])   
 
@@ -87,6 +98,8 @@ def create_graph_structure_citations(pub, search_height, search_height_max):
 # adds edges for references between publications     
 def create_graph_structure_references(pub, search_depth, search_depth_max):
     for reference in pub.references:
+
+        # checks if publication already exists in nodes
         not_in_nodes = True
         for node in nodes:
             # checks every reference for duplication 
@@ -99,7 +112,7 @@ def create_graph_structure_references(pub, search_depth, search_depth_max):
                 nodes.append(reference)
                 edges.append([pub.doi_url,reference.doi_url])
 
-        # adds only edge if citation already exists           
+        # adds only an edge (citation already exists)            
         elif [pub.doi_url,reference.doi_url] not in edges:
             edges.append([pub.doi_url,reference.doi_url])      
     
@@ -115,6 +128,8 @@ def process_citations_rec(doi_citations, search_height, search_height_max, test_
 
     # create class object for every citation from list
     for pub_doi in doi_citations:
+
+        # checks if its a test and chooses input function accordingly
         if (test_var):
             pub = input_test_func(pub_doi)
         else:
@@ -129,7 +144,7 @@ def process_citations_rec(doi_citations, search_height, search_height_max, test_
 
                 # currently only the references with acs are stored in the URL, because we can't 
                 # extract the info from other sources.
-                if ("acs" in citation.doi_url):
+                if ("acs" in citation.doi_url or test_var == True):
                     citations_list.append(citation.doi_url)
 
             # recursive call of function.
@@ -147,6 +162,8 @@ def process_references_rec(doi_references, search_depth, search_depth_max, test_
 
     # create class object for every citation from list
     for pub_doi in doi_references:
+
+        #checks if its a test and chooses input function accordingly
         if (test_var):
             pub = input_test_func(pub_doi)
         else:
@@ -164,7 +181,6 @@ def process_references_rec(doi_references, search_depth, search_depth_max, test_
                 if ("acs" in reference.doi_url or test_var == True):
                     references_list.append(reference.doi_url)
 
-
             # recursive call of function.
             process_references_rec(references_list, search_depth, search_depth_max, test_var)
 
@@ -190,6 +206,7 @@ def process_main(doi_input_list, search_height, search_depth, test_var = False):
     nodes = []
     edges = []
 
+
     initialize_nodes_list(doi_input_list,test_var)
     process_citations_rec(doi_input_list, 0, search_height, test_var)
     process_references_rec(doi_input_list, 0, search_depth, test_var)
diff --git a/verarbeitung/Processing_unittest.py b/verarbeitung/Processing_unittest.py
index 6d83de109124f16922d1c5276c9d91b41e577d27..772d57204ce3374211d1d1fd3d08d279f085aac3 100644
--- a/verarbeitung/Processing_unittest.py
+++ b/verarbeitung/Processing_unittest.py
@@ -2,7 +2,7 @@ import unittest
 from Processing import process_main
 
 class ProcessingTest(unittest.TestCase):
-    def testCycle(self):
+     def testCycle(self):
          nodes, edges = process_main(['doiz1'],1,1,True)
          self.assertCountEqual(nodes, ['doiz1', 'doiz2'])
          self.assertCountEqual(edges, [['doiz1', 'doiz2'], ['doiz2', 'doiz1']])
@@ -17,7 +17,7 @@ class ProcessingTest(unittest.TestCase):
 
     #def testEmptyDepth(self):
 
-    def testEmptyDepthHeight(self):
+     def testEmptyDepthHeight(self):
          nodes, edges = process_main(['doi1'],0,0,True)
          self.assertCountEqual(nodes,['doi1'])
          self.assertCountEqual(edges, [])
@@ -31,10 +31,36 @@ class ProcessingTest(unittest.TestCase):
          self.assertCountEqual(edges, [['doi3', 'doi1'], ['doi1', 'doi2']])
 
 
-    def testInnerEdges(self):
+     def testInnerEdges(self):
         nodes, edges = process_main(['doi_ie1'],1,1,True)
         self.assertCountEqual(nodes,['doi_ie1','doi_ie2','doi_ie3'])
         self.assertCountEqual(edges,[['doi_ie1','doi_ie2'],['doi_ie3','doi_ie1'],['doi_ie3','doi_ie2']])
+     
+     def testRightHeight(self):
+          nodes, edges = process_main(['doi_h01'],1,0,True)
+          self.assertCountEqual(nodes,['doi_h01'])
+          self.assertCountEqual(edges, [])
+
+          nodes, edges = process_main(['doi_h02'],1,0,True)
+          self.assertCountEqual(nodes,['doi_h02','doi_h1'])
+          self.assertCountEqual(edges, [['doi_h1','doi_h02']])
+
+          nodes, edges = process_main(['doi_h02'],2,0,True)
+          self.assertCountEqual(nodes,['doi_h02','doi_h1','doi_h2'])
+          self.assertCountEqual(edges, [['doi_h1','doi_h02'], ['doi_h2','doi_h1']])
+
+     def testRightDepth(self):
+          nodes, edges = process_main(['doi_d01'],0,1,True)
+          self.assertCountEqual(nodes,['doi_d01'])
+          self.assertCountEqual(edges, [])
+
+          nodes, edges = process_main(['doi_d02'],0,1,True)
+          self.assertCountEqual(nodes,['doi_d02','doi_d1'])
+          self.assertCountEqual(edges, [['doi_d02','doi_d1']])
+
+          nodes, edges = process_main(['doi_d02'],0,2,True)
+          self.assertCountEqual(nodes,['doi_d02','doi_d1','doi_d2'])
+          self.assertCountEqual(edges, [['doi_d02','doi_d1'], ['doi_d1','doi_d2']])
 
 if __name__ == "__main__":
     unittest.main()
\ No newline at end of file
diff --git a/verarbeitung/__pycache__/Processing.cpython-39.pyc b/verarbeitung/__pycache__/Processing.cpython-39.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..e08ca682bcdfcff17580d1e2c0923b6aac9ce00d
Binary files /dev/null and b/verarbeitung/__pycache__/Processing.cpython-39.pyc differ
diff --git a/verarbeitung/__pycache__/input_test.cpython-39.pyc b/verarbeitung/__pycache__/input_test.cpython-39.pyc
index d5948ff804073098a6d097ad17e81503eb7ec86b..68e42fd6a47a02787524c68816a42574834931d2 100644
Binary files a/verarbeitung/__pycache__/input_test.cpython-39.pyc and b/verarbeitung/__pycache__/input_test.cpython-39.pyc differ
diff --git a/verarbeitung/__pycache__/json_demo.cpython-39.pyc b/verarbeitung/__pycache__/json_demo.cpython-39.pyc
index a4f37b5097c0c5a82e7d36cd45671fb178e749ca..4e31ce337645d5282ddab11668bc6d745735f9f8 100644
Binary files a/verarbeitung/__pycache__/json_demo.cpython-39.pyc and b/verarbeitung/__pycache__/json_demo.cpython-39.pyc differ
diff --git a/verarbeitung/input_test.py b/verarbeitung/input_test.py
index 49621e6c86bbd0919b7bd393e7bd0be09079660f..44361c4b095f1c4fb0fce1868498d0e9da32f551 100644
--- a/verarbeitung/input_test.py
+++ b/verarbeitung/input_test.py
@@ -67,4 +67,16 @@ inner_edge1 = ['doi_ie1', 'title_ie1', ['contributor_ie1.1', 'contributor_ie1.2'
 inner_edge2 = ['doi_ie2', 'title_ie2', ['contributor_ie2.1', 'contributor_ie2.2'], 'journal_ie2', 'date_ie2', [], ['doi_ie1','doi_ie3'], '']
 inner_edge3 = ['doi_ie3', 'titlez_ie3', ['contributor_ie3.1', 'contributor_ie3.2'], 'journal_ie3', 'date_ie3', ['doi_ie1','doi_ie2'], [], '']
 
-list_of_arrays = [beispiel1, beispiel2, beispiel3, zyklus1, zyklus2, inner_edge1, inner_edge2, inner_edge3]
+right_height01 = ['doi_h01', 'title_h01', ['contributor_h01'], 'journal_h01', 'date_h01', [], [], '']
+right_height02 = ['doi_h02', 'title_h02', ['contributor_h02'], 'journal_h02', 'date_h02', [], ['doi_h1'], '']
+right_height1 = ['doi_h1', 'title_h1', ['contributor_h1'], 'journal_h1', 'date_h1', [], ['doi_h2'], '']
+right_height2 = ['doi_h2', 'title_h2', ['contributor_h2'], 'journal_h2', 'date_h2', [], ['doi_h3'], '']
+right_height3 = ['doi_h3', 'title_h3', ['contributor_h3'], 'journal_h3', 'date_h3', [], [], '']
+
+right_depth01 = ['doi_d01', 'title_d01', ['contributor_d01'], 'journal_d01', 'date_d01', [], [], '']
+right_depth02 = ['doi_d02', 'title_d02', ['contributor_d02'], 'journal_d02', 'date_d02', ['doi_d1'], [], '']
+right_depth1 = ['doi_d1', 'title_d1', ['contributor_d1'], 'journal_d1', 'date_d1', ['doi_d2'], [], '']
+right_depth2 = ['doi_d2', 'title_d2', ['contributor_d2'], 'journal_d2', 'date_d2', ['doi_d3'], [], '']
+right_depth3 = ['doi_d3', 'title_d3', ['contributor_d3'], 'journal_d3', 'date_d3', [], [], '']
+
+list_of_arrays = [beispiel1, beispiel2, beispiel3, zyklus1, zyklus2, inner_edge1, inner_edge2, inner_edge3, right_height01, right_height02, right_height1, right_height2, right_height3, right_depth01, right_depth02, right_depth1, right_depth2, right_depth3]
diff --git a/verarbeitung/json_text.json b/verarbeitung/json_text.json
index 32c49d8c3dcdc4ffada291b8a7b3a4aaba200ea0..23d7d2ddd9237bffb2319557c1df1c280ccc88be 100644
--- a/verarbeitung/json_text.json
+++ b/verarbeitung/json_text.json
@@ -1 +1 @@
-{"nodes": [{"name": "title_ie1", "author": ["contributor_ie1.1", "contributor_ie1.2"], "year": "date_ie1", "journal": "journal_ie1", "doi": "doi_ie1", "group": "input"}, {"name": "titlez_ie3", "author": ["contributor_ie3.1", "contributor_ie3.2"], "year": "date_ie3", "journal": "journal_ie3", "doi": "doi_ie3", "group": "height"}, {"name": "title_ie2", "author": ["contributor_ie2.1", "contributor_ie2.2"], "year": "date_ie2", "journal": "journal_ie2", "doi": "doi_ie2", "group": "depth"}], "links": [{"source": "doi_ie3", "target": "doi_ie1"}, {"source": "doi_ie1", "target": "doi_ie2"}, {"source": "doi_ie3", "target": "doi_ie2"}]}
\ No newline at end of file
+{"nodes": [{"name": "title_h02", "author": ["contributor_h02"], "year": "date_h02", "journal": "journal_h02", "doi": "doi_h02", "group": "input"}, {"name": "title_h1", "author": ["contributor_h1"], "year": "date_h1", "journal": "journal_h1", "doi": "doi_h1", "group": "height"}, {"name": "title_h2", "author": ["contributor_h2"], "year": "date_h2", "journal": "journal_h2", "doi": "doi_h2", "group": "height"}], "links": [{"source": "doi_h1", "target": "doi_h02"}, {"source": "doi_h2", "target": "doi_h1"}]}
\ No newline at end of file