Type2Message parsed = new Type2Message(t2.toByteArray());
        assertArrayEquals(challenge, parsed.getChallenge());
        assertNull(parsed.getTarget());
        assertNull(parsed.getTargetInformation());
    }


    @Test
    public void testParsingType2TargetInformation () throws IOException {
        int flags = 0;
        byte[] challenge = new byte[] {

import org.apache.maven.api.model.Profile;
import org.junit.jupiter.api.Test;

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

class MavenModelMergerTest {
    private MavenModelMerger modelMerger = new MavenModelMerger();

    // modelVersion is neither inherited nor injected
    @Test
    void testMergeModel_ModelVersion() {

        artifact = getArtifact(project, "maven-test-test", "scope-provided");
        assertNull(artifact, "Check no provided dependencies are transitive");
        artifact = getArtifact(project, "maven-test-test", "scope-test");
        assertNull(artifact, "Check no test dependencies are transitive");

        artifact = getArtifact(project, "maven-test-test", "scope-compile");

    try {
      assertNull(
          "remove(null) should return null or throw NullPointerException", getMap().remove(null));
    } catch (NullPointerException tolerated) {
    }
    expectUnchanged();
  }

  @MapFeature.Require({SUPPORTS_REMOVE, ALLOWS_NULL_KEY_QUERIES})
  public void testRemove_nullSupportedMissing() {
    assertNull("remove(null) should return null", getMap().remove(null));

    assertEquals(String[].class, array.getClass());
    assertThat(array).hasLength(2);
    assertNull(array[0]);
  }

  public void testNewArray_fromArray_OfArray() {
    String[][] array = ObjectArrays.newArray(new String[0][0], 1);
    assertEquals(String[][].class, array.getClass());
    assertThat(array).hasLength(1);
    assertNull(array[0]);
  }

  @GwtIncompatible // ObjectArrays.concat(Object[], Object[], Class)

        assertEquals("aaa\\bbb\\ccc", ldapManager.getSearchRoleName("cn=aaa\\bbb\\ccc,du=test\""));

        assertNull(ldapManager.getSearchRoleName(null));
        assertNull(ldapManager.getSearchRoleName(""));
        assertNull(ldapManager.getSearchRoleName(" "));
        assertNull(ldapManager.getSearchRoleName("aaa"));
    }

    public void test_replaceWithUnderscores() {

    assertTrue(map.remove(one, three));
    assertFalse(map.containsKey(one));
    assertFalse(map.containsValue(one));
    assertNull(map.putIfAbsent(two, three));
    assertSame(three, map.remove(two));
    assertNull(map.put(three, one));
    assertNull(map.put(one, two));

    assertThat(map).containsEntry(three, one);
    assertThat(map).containsEntry(one, two);

    expectReplacement(entry(k0(), v3()));
  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testPut_supportedNotPresent() {
    assertNull("put(notPresent, value) should return null", put(e3()));
    expectAdded(e3());
  }

  @MapFeature.Require({FAILS_FAST_ON_CONCURRENT_MODIFICATION, SUPPORTS_PUT})
  @CollectionSize.Require(absent = ZERO)

    }

    public void test_normalizeLang() {
        String value = null;
        assertNull(systemHelper.normalizeLang(value));

        value = "";
        assertNull(systemHelper.normalizeLang(value));

        value = "_ja";
        assertNull(systemHelper.normalizeLang(value));

        value = "ja";
        assertEquals("ja", systemHelper.normalizeLang(value));

    assertTrue(map.remove(one, three));
    assertFalse(map.containsKey(one));
    assertFalse(map.containsValue(one));
    assertNull(map.putIfAbsent(two, three));
    assertSame(three, map.remove(two));
    assertNull(map.put(three, one));
    assertNull(map.put(one, two));

    assertThat(map).containsEntry(three, one);
    assertThat(map).containsEntry(one, two);