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package io.spine.tools.validate.number;

import com.google.common.testing.EqualsTester;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

import static io.spine.tools.validate.number.NumberBoundaries.unbound;
import static org.junit.jupiter.api.Assertions.assertThrows;

@DisplayName("`NumberBoundaries` should")
class NumberBoundariesTest {

    @Test
    @DisplayName("have consistent `equals()`")
    void equality() {
        EqualsTester tester = new EqualsTester()
                .addEqualityGroup(unbound(), unbound(), new NumberBoundaries(null, null))
                .addEqualityGroup(
                        new NumberBoundaries(new Boundary(42, true), new Boundary(314, false)),
                        new NumberBoundaries(new Boundary(42, true), new Boundary(314, false))
                );
        tester.testEquals();
    }

    @Test
    @DisplayName("not allow min value be greater than max value")
    void notAllowMinGtMax() {
        Boundary min = new Boundary(42, false);
        Boundary max = new Boundary(-1, false);
        assertThrows(IllegalArgumentException.class, () -> new NumberBoundaries(min, max));
    }
}

Add tests for `NumberBoundaries`