call site 1 for path.svnurl.visit
path/testing/common.py - line 161
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   def test_visit_norecurse(self):
       l = []
->     for i in self.root.visit(None, lambda x: x.basename != "sampledir"):
           l.append(i.relto(self.root))
       assert "sampledir" in l
       assert not self.root.sep.join(["sampledir", "otherfile"]) in l