java-baseball-playground/src/test/java/study/SetTest.java at da4e8135a6b8a43188e8f25726f14b3fcc80948e · next-step/java-baseball-playground · GitHub

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package study;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;

import java.util.HashSet;
import java.util.Set;

import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.assertTrue;

public class SetTest {
    private Set<Integer> numbers;

    @BeforeEach
    void setUp() {
        numbers = new HashSet<>();
        numbers.add(1);
        numbers.add(1);
        numbers.add(2);
        numbers.add(3);
    }

    @Test
    void checkSize() {
        assertThat(numbers.size()).isEqualTo(3);
    }

    @Test
    void contain() {
        assertThat(numbers.contains(1)).isTrue();
        assertThat(numbers.contains(2)).isTrue();
        assertThat(numbers.contains(3)).isTrue();
    }


}