@Test
  public void spaceOrEmptyStringIsParsedCorrectly() {
    input = "alter region --name=" + SEPARATOR + "Person --cache-writer='' --cache-loader=' '";
    tokens = GfshParser.splitUserInput(input);
    assertThat(tokens.size()).isEqualTo(8);
    assertThat(tokens.get(7)).isEqualTo("' '");
    assertThat(tokens.get(5)).isEqualTo("''");
  }
GfshParserJUnitTest - Includes tests to check the parsing and auto-completion capabilities of
{@link GfshParser}
geode-gfsh/src/test/java/org/apache/geode/management/internal/cli/GfshParserJUnitTest.java