get_all_user method, sign_in_up methods fixed and get_all_user method successfully tested

src/main/java/de/hs_mannheim/domain/System.java

@@ -53,17 +53,15 @@ public class System {
         return Base64.encodeBase64String(binary_data);
     }
 
-    public HashSet<User> get_all_user() throws FileNotFoundException, IOException{
+    public HashSet<User> get_all_user() {
         HashSet<User> all_users = new HashSet<>();
-        File file = new File("/user_data.csv");
         String[] fileString = new String[8];
 
-        if(file.exists() && file.isFile()){
+        InputStream inputStream = System.class.getResourceAsStream("/user_data.csv");
-            FileReader fileReader = new FileReader(file);
-            BufferedReader bufferedReader = new BufferedReader(fileReader);
         String path;
 
-            while((path = bufferedReader.readLine()) != null){
+        try (BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) {
+            while ((path = reader.readLine()) != null) {
                 fileString = path.split(";");
                 fileString[1] = encoding(fileString[1]);
                 all_users.add(new User(fileString[0], fileString[1], fileString[2],
@@ -72,6 +70,7 @@ public class System {
                         Double.parseDouble(fileString[6]),
                         Double.parseDouble(fileString[7])));
             }
+        } catch (Exception e) {
         }
         return all_users;
     }
@@ -80,7 +79,7 @@ public class System {
         ArrayList<User> mem = new ArrayList<>(get_all_user());
 
         for (User user : mem) {
-            if(user.getUsername().equals(username) && user.getPassword().equals(password)){
+            if (user.getUsername().equals(username) && decoding(user.getPassword()).equals(password)) {
                 current_user = new User(user.getUsername(), user.getPassword(),
                         user.getHometown(), user.getZip(), user.getCar_name(),
                         user.getCar_l_100km(), user.getCar_avg_kmh(), user.getBike_avg_kmh());
@@ -123,7 +122,8 @@ public class System {
                     bufferedWriter.newLine();
                 }
                 bufferedWriter.close();
-            } catch (IOException e) {}
+            } catch (IOException e) {
+            }
 
             return true;
         }
@@ -155,7 +155,8 @@ public class System {
                     zip_set.add(line);
                 }
             }
-        } catch (Exception e) {}
+        } catch (Exception e) {
+        }
 
         return new ArrayList<>(zip_set);
     }
@@ -226,7 +227,8 @@ public class System {
             JSONObject json = new JSONObject(((String) get_response.body()).substring(0, ((String) get_response.body()).length()));
             weather = json.getJSONArray("weather").getJSONObject(0).getString("description");
             temperature = json.getJSONObject("main").getDouble("temp");
-        } catch (Exception e){}
+        } catch (Exception e) {
+        }
 
         if (weather.equals(""))
             return "Es ist ein Fehler aufgetreten!";
@@ -299,7 +301,8 @@ public class System {
             temperature_day_3_3 = json.getJSONArray("list").getJSONObject(28).getJSONObject("main").getDouble("temp");
             temperature_day_3_4 = json.getJSONArray("list").getJSONObject(30).getJSONObject("main").getDouble("temp");
 
-        } catch (Exception e){}
+        } catch (Exception e) {
+        }
 
         temperature_day_1.add(temperature_day_1_1);
         temperature_day_1.add(temperature_day_1_2);
@@ -357,7 +360,8 @@ public class System {
                     lat1 = Double.parseDouble(line.split(";")[3]);
                 }
             }
-        } catch (Exception e) {}
+        } catch (Exception e) {
+        }
 
         if (lon1 == -1 || lon2 == -1 || lat1 == -1 || lat2 == -1)
             return "Es ist ein Fehler aufgetreten!";
@@ -389,7 +393,8 @@ public class System {
                 this.distances.add(line.split(";")[0] + ";" + line.split(";")[1] + ";" + Double.parseDouble(distance(line.split(";")[0]).replace(" km", "")));
 
             }
-        } catch (Exception e) {}
+        } catch (Exception e) {
+        }
     }
 
     public String[] travel_time(String destination_zip) {

src/main/resources/user_data.csv

@@ -0,0 +1 @@
+Daniel;1401Daniel;Mannheim;68305;BMW;1.5;50.4;40.2

src/test/java/de/hs_mannheim/domain/SystemTest.java

@@ -3,6 +3,7 @@ package de.hs_mannheim.domain;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotEquals;
 
+import java.io.IOException;
 import java.util.ArrayList;
 
 import org.junit.jupiter.api.Test;
@@ -86,4 +87,13 @@ public class SystemTest {
         assertEquals(true, Double.parseDouble(current_system.distance(current_system.random_destinations_bike().get(0).split(";")[0]).replace(" km", "")) < 100);
     }
 
+    @Test
+    public void get_all_user() {
+        assertEquals(1, current_system.get_all_user().size());
+
+        ArrayList<User> list = new ArrayList<>(current_system.get_all_user());
+        assertEquals(true, list.get(0).getPassword().equals("MTQwMURhbmllbA=="));
+        //Passwort unkodiert: 1401Daniel
+    }
+
 }

src/test/resources/user_data.csv

@@ -0,0 +1 @@
+Daniel;1401Daniel;Mannheim;68305;BMW;1.5;50.4;40.2