class StringUtilTest {

    @Test
    @DisplayName("Should join single element without delimiter")
    void testJoinSingleElement() {
        String result = StringUtil.join(",", "hello");
        assertEquals("hello", result);
    }

    @Test
    @DisplayName("Should join two elements with delimiter")
    void testJoinTwoElements() {
        String result = StringUtil.join(",", "hello", "world");

     */
    private StringUtil() {
    }

    /**
     * Implementation of {@link java.lang.String#join} backported for JDK7.
     *
     * @param delimiter the separator to use between elements
     * @param elements the elements to join
     * @return elements separated by delimiter
     */
    public static String join(final CharSequence delimiter, final CharSequence... elements) {
        final StringBuilder sb = new StringBuilder();

  }

  public void testJoin() {
    assertThat(join()).isEmpty();
    assertThat(join(1)).isEqualTo("1");
    assertThat(join(1, 2)).isEqualTo("1,2");
    assertThat(join(-1, Integer.MIN_VALUE)).isEqualTo("4294967295,2147483648");

    assertThat(UnsignedInts.join("", 1, 2, 3)).isEqualTo("123");
  }

  private static String join(int... values) {
    return UnsignedInts.join(",", values);
  }

  @J2ktIncompatible

	}

	// Left JOIN w/o WHERE
	result, err = db.Joins(clause.LeftJoin.Association("Company"), nil).Where(map[string]any{"name": u.Name}).First(ctx)
	if err != nil {
		t.Fatalf("Joins failed: %v", err)
	}
	if result.Name != u.Name || result.Company.Name != u.Company.Name {
		t.Fatalf("Joins expected %s, got %+v", u.Name, result)
	}

	// Left JOIN + Alias WHERE

			t.Fatalf("LIMIT/Offset values unexpected: %v", cl.Expression)
		}
	}

	// Joins
	tx = tx.Joins("JOIN accounts ON accounts.user_id = users.id")
	if len(tx.Statement.Joins) == 0 {
		t.Fatalf("Joins expected")
	}
	if tx.Statement.Joins[0].Name != "JOIN accounts ON accounts.user_id = users.id" {
		t.Fatalf("Join name mismatch: %v", tx.Statement.Joins[0].Name)
	}

	// Preload

    assertThat(j.join(ImmutableMultimap.of().entries())).isEqualTo("");
    assertThat(j.join(ImmutableMultimap.of().entries().iterator())).isEqualTo("");
    assertThat(j.join(ImmutableMultimap.of("", "").entries())).isEqualTo(":");
    assertThat(j.join(ImmutableMultimap.of("", "").entries().iterator())).isEqualTo(":");
    assertThat(j.join(ImmutableMultimap.of("1", "a", "1", "b").entries())).isEqualTo("1:a;1:b");

  write_to_bazelrc('test:v1 --test_tag_filters=%s' %
                   ','.join(test_and_build_filters + test_only_filters))
  write_to_bazelrc('test:v1 --build_tag_filters=%s' %
                   ','.join(test_and_build_filters))
  write_to_bazelrc(
      'test:v2 --test_tag_filters=%s' %
      ','.join(test_and_build_filters + test_only_filters + ['-v1only']))
  write_to_bazelrc('test:v2 --build_tag_filters=%s' %

    Thread thread1 = new Thread(execute);
    Thread thread2 = new Thread(execute);
    thread1.start();
    thread2.start();
    assertEquals(0, runCalled.get());
    okayToRun.countDown();
    thread1.join();
    thread2.join();
    assertEquals(1, runCalled.get());
  }

  public void testAddAfterRun() throws Exception {
    // Run the previous test
    testRunOnPopulatedList();

		t.Fatalf("Build count with select, but got %v", result.Statement.SQL.String())
	}

	var count4 int64
	if err := DB.Table("users").Joins("LEFT JOIN companies on companies.name = users.name").Where("users.name = ?", user1.Name).Count(&count4).Error; err != nil || count4 != 1 {
		t.Errorf("count with join, got error: %v, count %v", err, count4)
	}

	var count5 int64

    Thread thread1 = new Thread(execute);
    Thread thread2 = new Thread(execute);
    thread1.start();
    thread2.start();
    assertEquals(0, runCalled.get());
    okayToRun.countDown();
    thread1.join();
    thread2.join();
    assertEquals(1, runCalled.get());
  }

  public void testAddAfterRun() throws Exception {
    // Run the previous test
    testRunOnPopulatedList();