Merge remote-tracking branch 'origin/master'

src/Credentials.java

@@ -1,4 +1,7 @@
+import org.junit.jupiter.api.Test;
+
 public class Credentials {
+
     private String login;
     private String hash;
 
@@ -8,10 +11,24 @@ public class Credentials {
     }
 
     public boolean valid() {
+
+        boolean usernameGiven = false;
+
+
+        //iterator over file
         for (String line:
                 Helpers.readTextdatei("data/passwd.txt")) {
-            System.out.println(line);
+            if(login.equals(line)) {
+                usernameGiven = true;
+                continue;
+            }
+            if(usernameGiven && hash.equals(line)) {
+                return true;
+            }
+
         }
         return false;
     }
 }
+
+

src/Main.java

@@ -1,5 +1,32 @@
+import java.io.InputStream;
+import java.util.Scanner;
+
 public class Main {
     public static void main(String[] args) {
+       if(login(System.in)) {
+           System.out.println("Hello World");
+       }
+    }
 
+    public static boolean login(InputStream in) {
+        Scanner s = new Scanner(in);
+
+
+        for (int i = 0; i < 3; i++) {
+            System.out.print("Benutzername: ");
+            String login = s.next();
+            System.out.print("Passwort: ");
+            String passwort = s.next();
+
+            Credentials cred = new Credentials(login, passwort);
+
+            if (cred.valid()) {
+                return true;
+            }
+
+            System.out.println("Du kommst hier nicht rein");
+        }
+        s.close();
+        return false;
     }
 }

test/java/CredentialsTest.java

@@ -1,8 +1,31 @@
+import org.junit.jupiter.api.Test;
+
 import static org.junit.jupiter.api.Assertions.*;
 
 class CredentialsTest {
 
-    @org.junit.jupiter.api.Test
+    @Test
-    void valid() {
+    void existingCheck() {
+        Credentials cred = new Credentials("apple", "windows");
+        assertNotNull(cred);
     }
+
+    @Test
+    void validData() {
+        Credentials cred = new Credentials("hofmannol", "GERONIMO");
+        assertTrue(cred.valid());
+    }
+
+    @Test
+    void validWrongData() {
+        Credentials cred = new Credentials("brunoklasing", "GEHEIM123");
+        assertFalse(cred.valid());
+    }
+
+    @Test
+    void validWrongData2() {
+        Credentials cred = new Credentials("wimmerma", "GERONIMO");
+        assertFalse(cred.valid());
+    }
+
 }

test/java/MainTest.java

@@ -0,0 +1,22 @@
+import org.junit.jupiter.api.Test;
+
+import java.io.ByteArrayInputStream;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class MainTest {
+
+    @Test
+    public void testFirstTryRight() {
+
+        //Arrange
+        byte[] bytes = "hofmannol\nGERONIMO\n".getBytes();
+        ByteArrayInputStream in = new ByteArrayInputStream(bytes);
+
+        //Act
+        boolean logged_in = Main.login(in);
+
+        assertTrue(logged_in);
+    }
+
+}