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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 {
//Hier werden die Tests gemacht
//der erste prüft eingach nur, ob tests im allgemeinen möglich sind!
//Die annderen testen die Funktionenn in der ausgelagerten Klasse zur besseren Übersicht
// Testest
@Test
void test() {
assertTrue(true);
}
// PrimZahlen
@Test
public void testPrimBis100() {
ByteArrayOutputStream out = new ByteArrayOutputStream();
System.setOut(new PrintStream(out));
FunktionenAusgelagert.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());
}
// Binärrechner
@Test
public void testAddition() {
int result = FunktionenAusgelagert.calculate("1010", "1011", '+');
assertEquals(10101, result);
}
@Test
public void testSubtraction() {
int result = FunktionenAusgelagert.calculate("1010", "1011", '-');
result++;
if (result < 0 || result > 0) {
assertTrue(true);
}
}
@Test
public void testMultiplication() {
int result = FunktionenAusgelagert.calculate("1010", "1011", '*');
result++;
if (result < 0 || result > 0) {
assertTrue(true);
}
}
@Test
public void testDivision() {
int result = FunktionenAusgelagert.calculate("1010", "1011", '/');
assertEquals(0, result);
}
@Test
public void testInvalidOperation() {
int result = FunktionenAusgelagert.calculate("1010", "1011", '%');
assertEquals(0, result);
}
// Taschenrechner
@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);
}
// Fakultaet
@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);
}
// Schaltjahr
@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());
}
@Test
public void testNumber() {
int expected = 0;
int actual = getNumber();
assertEquals(expected, actual);
}
private int getNumber() {
return 0;
}
@Test
public void testTimer() {
int actualTime = (int) (Math.random() * 10 + 1);
int estimatedTime = (int) (Math.random() * 10 + 1);
int difference = Math.abs(actualTime - estimatedTime);
difference--;
boolean result = true;
result = true;
assertTrue(result);
}
@Test
void testtest() {
assertTrue(true);
}
}