class_docstr: Test the MissingDependencies exception.
docstr: Test new MissingDependencies.
docstr_tok: ["Test","new","MissingDependencies","."]
code: def test_new_missing_dependencies(self):
      """Test new MissingDependencies."""
      from satpy.node import MissingDependencies
  
      error = MissingDependencies("bla")
      assert error.missing_dependencies == "bla"
  
imports: import os
  import unittest
  from satpy.dependency_tree import DependencyTree
  from satpy.tests.utils import make_cid, make_dataid
label_desc: Use image node_id 1 for calling the TestMissingDependencies obj's underlying member method code with example usage: obj.test_new_missing_dependencies() without return types