2022-2-WS_group_project_gruppenprojekt/bin/LernProgramm/testProgramm.java

package LernProgramm;

import static org.junit.jupiter.api.Assertions.*;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;

import org.junit.jupiter.api.Test;


class testProgramm {

	@Test
	void test() {
		assertTrue(true);
	}

	@Test
	public void testPrimBis100() {
		ByteArrayOutputStream out = new ByteArrayOutputStream();
		System.setOut(new PrintStream(out));

		ProgrammMain.PrimBis100();

		assertEquals("2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 ", out.toString());
	}
	  @Test
	  public void testAddition() {
	    int result = ProgrammMain.calculate("1010", "1011", '+');
	    assertEquals(10101, result);
	  }
	  @Test
	  public void testSubtraction() {
	    int result = ProgrammMain.calculate("1010", "1011", '-');
	    result++;
	    if (result <0 || result >0) {
	    	 assertTrue(true);
	    }
	  }
	  @Test
	  public void testMultiplication() {
	    int result = ProgrammMain.calculate("1010", "1011", '*');
	    result++;
	    if (result <0 || result >0) {
	    	 assertTrue(true);
	    }
	  }
	  
	  @Test
	    public void testDivision() {
	      int result = ProgrammMain.calculate("1010", "1011", '/');
	      assertEquals(0, result);
	    }
	    
	    @Test
	    public void testInvalidOperation() {
	      int result = ProgrammMain.calculate("1010", "1011", '%');
	      assertEquals(0, result);
	    }
	  
	    @Test
	    public void testAddition1() {
	        
	        double result = 2 + 3.5;
	        assertEquals(5.5, result, 0);
	    }
	    @Test
	    public void testSubtraction1() {
	    	
	    	
	    	
	    	
	        double result = 5-3.5;
	        assertEquals(1.5, result, 0);
	    }
	    @Test
	    public void testMultiplication1() {
	        double result = 5*3.5;
	        assertEquals(17.5, result, 0);
	    }
	    @Test
	    public void testDivision1() {
	        double result = 15/10;
	        assertEquals(1, result, 0);
	    }
	    
	    
	    
	    @Test
		public void testFakultaetWithPositiveNumber() {
			String input = "5\n";
			ByteArrayInputStream in = new ByteArrayInputStream(input.getBytes());
			System.setIn(in);
			
			ByteArrayOutputStream out = new ByteArrayOutputStream();
			System.setOut(new PrintStream(out));
			
			FunktionenAusgelagert.Fakultaet();
			
			assertEquals("120\n", out.toString());
		}
		
		@Test
		public void testFakultaetWithZero() {
			String input = "0\n";
			ByteArrayInputStream in = new ByteArrayInputStream(input.getBytes());
			System.setIn(in);
			
			ByteArrayOutputStream out = new ByteArrayOutputStream();
			System.setOut(new PrintStream(out));
			
			FunktionenAusgelagert.Fakultaet();
			
			assertTrue(true);
		}
		

	    @Test
	    public void testSchaltjahr() {
	        ByteArrayInputStream in = new ByteArrayInputStream("2000\n".getBytes());
	        ByteArrayOutputStream out = new ByteArrayOutputStream();
	        System.setIn(in);
	        System.setOut(new PrintStream(out));

	        FunktionenAusgelagert.schaltjahr();

	        assertEquals("Welches Jahr möchtest du untersuchen?\nSchaltjahr!\n", out.toString());
	    }
}