assertSame(mirrorA, mirrorSelector.getMirror(getRepo("a", "http://a.a"), mirrors));

        assertSame(mirrorB, mirrorSelector.getMirror(getRepo("b", "http://a.a"), mirrors));

        assertSame(mirrorC2, mirrorSelector.getMirror(getRepo("c", "http://c.c"), mirrors));

        assertSame(mirrorC, mirrorSelector.getMirror(getRepo("d", "http://d"), mirrors));

        VersionRange range = VersionRange.createFromVersionSpec("[1.0,1.2]");
        assertSame(range, VersionRange.createFromVersionSpec("[1.0,1.2]")); // same instance from spec cache

        VersionRange spec = VersionRange.createFromVersionSpec("1.0");
        assertSame(spec, VersionRange.createFromVersionSpec("1.0")); // same instance from spec cache

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertSame;

class DefaultProblemTest {

    @Test
    void testGetSeverity() {
        DefaultProblem problem = new DefaultProblem(null, null, null, -1, -1, null);
        assertEquals(Severity.ERROR, problem.getSeverity());

            Artifact artifact = it.next();

            if ( "test-artifact2".equals( artifact.getArtifactId() ) )
            {
                ArtifactFilter filter = artifact.getDependencyFilter();

                assertSame( dependencyFilter, filter );
            }
        }
        */
    }

    @Test
    @Disabled("TODO restore these if it makes sense")