@prefix ex: <http://example.org/>.
@prefix mf: <http://www.w3.org/2001/sw/DataAccess/tests/test-manifest#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
@prefix sh: <http://www.w3.org/ns/shacl#>.
@prefix sht: <http://www.w3.org/ns/shacl-test#>.

<> a mf:Manifest;
  mf:entries (<targetNode-non-existing>).

ex:MyShape a sh:NodeShape;
  sh:class ex:TheClass;
  sh:targetNode ex:Instance1.

<targetNode-non-existing> a sht:Validate;
  rdfs:label "Test of sh:targetNode absent from data graph";
  mf:action [
      sht:dataGraph <targetNode-non-existing-data.ttl>;
      sht:shapesGraph <>
    ];
  mf:result [ a sh:ValidationReport;
      sh:conforms true
    ].