class_docstr: Unit tests for the ``rect`` function.
class_docstr_tok: ["Unit","tests","for","the","``","rect","``","function","."]
docstr: Test that the ``rect`` function always returns the correct value when no windows
  are specified
docstr_tok: ["Test","that","the","``","rect","``","function","always","returns","the","correct","value","when","no","windows","are","specified"]
code: def test_rect_returns_correct_value_no_windows(self):
      """Test that the ``rect`` function always returns the correct value when no windows
      are specified"""
  
      def f(p, t):
          return p * t
  
      c = qml.pulse.rect(x=f)
  
      times = np.arange(0, 10, step=1e-2)
      for t in times:
          assert c(p=0.5, t=t) == f(0.5, t)
  
imports: import inspect
  from functools import reduce
  import numpy
  import pytest
  import pennylane
  from pennylane.pulse import ParametrizedHamiltonian
label_desc: Use image node_id 5 for calling the TestRect obj's underlying member method code with example usage: obj.test_rect_returns_correct_value_no_windows() and returns: unknown