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        depth = 0;
        parents = Collections.emptyList();
        parent = null;
    }

    public ResolutionNode(Artifact artifact, List<ArtifactRepository> remoteRepositories, ResolutionNode parent) {
        this.artifact = artifact;
        this.remoteRepositories = remoteRepositories;
        depth = parent.depth + 1;
        parents = new ArrayList<>();
        parents.addAll(parent.parents);

        final List<Vertex> parents = new ArrayList<>();

        Vertex(String label) {
            this.label = label;
        }

        String getLabel() {
            return label;
        }

        List<Vertex> getChildren() {
            return children;
        }

        List<Vertex> getParents() {
            return parents;
        }
    }

        final List<Vertex> parents = new ArrayList<>();

        Vertex(String label) {
            this.label = label;
        }

        String getLabel() {
            return label;
        }

        List<Vertex> getChildren() {
            return children;
        }

        List<Vertex> getParents() {
            return parents;
        }
    }

	}

	var parents []ItemParent
	if err := tx.Find(&parents).Error; err != nil {
		t.Errorf("failed to find item parent, got error: %v", err)
	}
	if len(parents) != 1 {
		t.Errorf("expected %d parents, got %d", 1, len(parents))
	}

	// test delete
	if err := tx.Model(&item).Association("ItemParent").Unscoped().Delete(&parents); err != nil {

      Work and such Derivative Works in Source or Object form.

   3. Grant of Patent License. Subject to the terms and conditions of
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      (except as stated in this section) patent license to make, have made,
      use, offer to sell, sell, import, and otherwise transfer the Work,

      Work and such Derivative Works in Source or Object form.

   3. Grant of Patent License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      (except as stated in this section) patent license to make, have made,
      use, offer to sell, sell, import, and otherwise transfer the Work,

      Work and such Derivative Works in Source or Object form.

   3. Grant of Patent License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      (except as stated in this section) patent license to make, have made,
      use, offer to sell, sell, import, and otherwise transfer the Work,