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refactor: refactor Ceil and improved tests (#6366)

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* refactor: refactor Ceil and improved tests

* checkstyle: remove redundant import

* refactor: fix edge cases

* refactor: fix checkstyle

* refactor: fix checkstyle import order
This commit is contained in:
Oleksandr Klymenko
2025-07-14 08:47:22 +03:00
committed by GitHub
parent ef93cc1503
commit 933e929b54
2 changed files with 41 additions and 16 deletions
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30
src/test/java/com/thealgorithms/maths/CeilTest.java
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@@ -2,16 +2,30 @@ package com.thealgorithms.maths;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.Test;
import java.util.stream.Stream;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import org.junit.jupiter.params.provider.MethodSource;
public class CeilTest {
@Test
void testCeil() {
assertEquals(8, Ceil.ceil(7.057));
assertEquals(8, Ceil.ceil(7.004));
assertEquals(-13, Ceil.ceil(-13.004));
assertEquals(1, Ceil.ceil(.98));
assertEquals(-11, Ceil.ceil(-11.357));
@ParameterizedTest
@CsvSource({"7.057, 8", "7.004, 8", "-13.004, -13", "0.98, 1", "-11.357, -11"})
void testCeil(double input, int expected) {
assertEquals(expected, Ceil.ceil(input));
}
@ParameterizedTest
@MethodSource("edgeCaseProvider")
void testEdgeCases(TestData data) {
assertEquals(Ceil.ceil(data.input), data.expected);
}
record TestData(double input, double expected) {
}
static Stream<TestData> edgeCaseProvider() {
return Stream.of(new TestData(Double.MAX_VALUE, Double.MAX_VALUE), new TestData(Double.MIN_VALUE, Math.ceil(Double.MIN_VALUE)), new TestData(0.0, Math.ceil(0.0)), new TestData(-0.0, Math.ceil(-0.0)), new TestData(Double.NaN, Math.ceil(Double.NaN)),
new TestData(Double.NEGATIVE_INFINITY, Math.ceil(Double.NEGATIVE_INFINITY)), new TestData(Double.POSITIVE_INFINITY, Math.ceil(Double.POSITIVE_INFINITY)));
}
}