Add a way to only run a test if a needed executable is on the path. (#…

…2004)

* Add a way to only run a test if a needed executable is on the path.

* Adding a test for needed_executable.

rook/Tester.py

@@ -20,6 +20,7 @@
 import subprocess
 import sys
 import os
+import shutil
 import time
 import threading
 import platform
@@ -388,6 +389,8 @@ def get_valid_params():
     params.add_param('min_python_version', 'none',
                      'The Minimum python version required for this test.'+
                      ' Example 3.8 (note, format is major.minor)')
+    params.add_param('needed_executable', '',
+                     'Only run test if needed executable is on path.')
     return params
 
   def __init__(self, _name, params):
@@ -400,6 +403,7 @@ def __init__(self, _name, params):
     valid_params = self.get_valid_params()
     self.specs = valid_params.get_filled_dict(params)
     self.results = TestResult()
+    self._needed_executable = self.specs['needed_executable']
     self.__command_prefix = ""
     self.__python_command = sys.executable
     if os.name == "nt":
@@ -547,6 +551,10 @@ def _run_backend(self, _):
       self.results.message = "SKIPPED ("+str(self.__test_run_type)+\
         " is not a subset of "+str(self.__base_current_run_type)+")"
       return self.results
+    if len(self._needed_executable) > 0 and \
+       shutil.which(self._needed_executable) is None:
+      self.set_skip('skipped (Missing executable: "'+self._needed_executable+'")')
+      return self.results
     if not self.check_runnable():
       return self.results
 

tests/reg_self_tests/tests

@@ -48,4 +48,10 @@
     alt_root = './matching'
    [../]
  [../]
+ [./check_needed_executable]
+   #Checks that this is skipped
+   type = 'GenericExecutable'
+   executable = 'no_such_executable'
+   needed_executable = 'no_such_executable'
+ [../]
 []