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test: cleanup ReverseNumberTest #5381

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Merged
merged 2 commits into from
Aug 25, 2024
Merged

test: cleanup ReverseNumberTest #5381

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cf5c08d
test: cleanup ReverseNumberTest
Aug 24, 2024
bb8c6a9
Merge branch 'master' into test/ReverseNumberTest
siriak Aug 25, 2024
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28 changes: 11 additions & 17 deletions src/test/java/com/thealgorithms/maths/ReverseNumberTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -3,27 +3,21 @@
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;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import org.junit.jupiter.params.provider.ValueSource;

public class ReverseNumberTest {

@Test
public void testReverseNumber() {
HashMap<Integer, Integer> testCases = new HashMap<>();
testCases.put(0, 0);
testCases.put(1, 1);
testCases.put(10, 1);
testCases.put(123, 321);
testCases.put(7890, 987);

for (final var tc : testCases.entrySet()) {
assertEquals(ReverseNumber.reverseNumber(tc.getKey()), tc.getValue());
}
@ParameterizedTest
@CsvSource({"0, 0", "1, 1", "10, 1", "123, 321", "7890, 987"})
public void testReverseNumber(int input, int expected) {
assertEquals(expected, ReverseNumber.reverseNumber(input));
}

@Test
public void testReverseNumberThrowsExceptionForNegativeInput() {
assertThrows(IllegalArgumentException.class, () -> ReverseNumber.reverseNumber(-1));
@ParameterizedTest
@ValueSource(ints = {-1, -123, -7890})
public void testReverseNumberThrowsExceptionForNegativeInput(int input) {
assertThrows(IllegalArgumentException.class, () -> ReverseNumber.reverseNumber(input));
}
}