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import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import org.junit.jupiter.api.Test;
import com.github.tschoonj.xraylib.Xraylib;
public class TestDensities {
@Test
public void test_good_values() {
assertEquals(Xraylib.ElementDensity(1), 0.000084, 1E-8);
assertEquals(Xraylib.ElementDensity(50), 7.31, 1E-6);
assertEquals(Xraylib.ElementDensity(98), 10.0, 1E-6);
}
@Test
public void test_bad_values() {
IllegalArgumentException exc = assertThrows(IllegalArgumentException.class, () -> {
double density = Xraylib.ElementDensity(0);
});
assertEquals(exc.getMessage(), Xraylib.Z_OUT_OF_RANGE);
assertThrows(IllegalArgumentException.class, () -> {
double density = Xraylib.ElementDensity(99);
});
assertEquals(exc.getMessage(), Xraylib.Z_OUT_OF_RANGE);
}
}
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