assertEqualCharNodes(traverser.breadthFirst(charactersOf("bd")), "bdca");
    assertEqualCharNodes(traverser.breadthFirst(charactersOf("dc")), "dcab");
    assertEqualCharNodes(traverser.breadthFirst(charactersOf("bc")), "bcda");
  }

  @Test
  public void forGraph_breadthFirst_twoCycles() {
    Traverser<Character> traverser = Traverser.forGraph(TWO_CYCLES_GRAPH);

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				"application/cpl+xml",
				"application/csta+xml",
				"application/cstadata+xml",
				"application/cu-seeme",
				"application/cybercash",
				"application/davmount+xml",
				"application/dca-rft",
				"application/dec-dx",
				"application/dialog-info+xml",
				"application/dicom",
				"application/dita+xml",
				"application/dita+xml;format=map",
				"application/dita+xml;format=topic",

  </mime-type>
  <mime-type type="application/onenote; format=package">
    <_comment>OneNote Package</_comment>
    <glob pattern="*.onepkg"/>
    <!-- Actually a CAB file of the other OneNote file formats! -->
    <sub-class-of type="application/vnd.ms-cab-compressed" />
  </mime-type>

  <mime-type type="application/parityfec"/>
  <mime-type type="application/patch-ops-error+xml">
    <glob pattern="*.xer"/>