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Add tests for EulersFunction (#4216)

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This commit is contained in:
Piotr Idzik
2023-06-19 19:46:54 +02:00
committed by GitHub
parent e29a22770b
commit 87d6083bac
2 changed files with 56 additions and 13 deletions
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src/test/java/com/thealgorithms/others/EulersFunctionTest.java Normal file
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package com.thealgorithms.others;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import java.util.HashMap;
import org.junit.jupiter.api.Test;
class EulersFunctionTest {
@Test
public void testGetEuler() {
HashMap<Integer, Integer> testCases = new HashMap<>();
testCases.put(1, 1);
testCases.put(2, 1);
testCases.put(3, 2);
testCases.put(4, 2);
testCases.put(5, 4);
testCases.put(6, 2);
testCases.put(10, 4);
testCases.put(21, 12);
testCases.put(69, 44);
testCases.put(47, 46);
testCases.put(46, 22);
testCases.put(55, 40);
testCases.put(34, 16);
testCases.put(20, 8);
testCases.put(20, 8);
testCases.put(1024, 512);
for (final var tc : testCases.entrySet()) {
assertEquals(tc.getValue(), EulersFunction.getEuler(tc.getKey()));
}
}
@Test
public void testGetEulerThrowsExceptionForNonPositiveInput() {
assertThrows(IllegalArgumentException.class, () -> EulersFunction.getEuler(0));
}
}