bluval/bluval.py

   1 #!/usr/bin/python3
   2 ##############################################################################
   3 # Copyright (c) 2019 AT&T Intellectual Property.                             #
   4 # Copyright (c) 2019 Nokia.                                                  #
   5 #                                                                            #
   6 # Licensed under the Apache License, Version 2.0 (the "License"); you may    #
   7 # not use this file except in compliance with the License.                   #
   8 #                                                                            #
   9 # You may obtain a copy of the License at                                    #
  10 #       http://www.apache.org/licenses/LICENSE-2.0                           #
  11 #                                                                            #
  12 # Unless required by applicable law or agreed to in writing, software        #
  13 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT  #
  14 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.           #
  15 # See the License for the specific language governing permissions and        #
  16 # limitations under the License.                                             #
  17 ##############################################################################
  18 """This module parses yaml file, reads layers, testcases and executes each
  19 testcase
  20 """
  21
  22 import subprocess
  23 import sys
  24 import traceback
  25 from pathlib import Path
  26
  27 import click
  28 import yaml
  29
  30 from bluutil import BluvalError
  31 from bluutil import ShowStopperError
  32
  33 _OPTIONAL_ALSO = False
  34
  35 def run_testcase(testcase):
  36     """Runs a single testcase
  37     """
  38     name = testcase.get('name')
  39     skip = testcase.get('skip', "False")
  40     optional = testcase.get('optional', "False")
  41     if skip.lower() == "true":
  42         # skip is mentioned and true.
  43         print('Skipping {}'.format(name))
  44         return
  45     print("_OPTIONAL_ALSO {}".format(_OPTIONAL_ALSO))
  46     if  not _OPTIONAL_ALSO and optional.lower() == "true":
  47         # Optional Test case.
  48         print('Ignoring Optional {} testcase'.format(name))
  49         return
  50     show_stopper = testcase.get('show_stopper', "False")
  51     what = testcase.get('what')
  52     mypath = Path(__file__).absolute()
  53     results_path = mypath.parents[2].joinpath(
  54         "results/"+testcase.get('layer')+"/"+what)
  55     test_path = mypath.parents[1].joinpath(
  56         "tests/"+testcase.get('layer')+"/"+what)
  57
  58     # add to the variables file the path to where to sotre the logs
  59     variables_file = mypath.parents[1].joinpath("tests/variables.yaml")
  60     variables_dict = yaml.safe_load(variables_file.open())
  61     variables_dict['log_path'] = str(results_path)
  62     variables_file.write_text(str(variables_dict))
  63
  64     # run the test
  65     args = ["robot", "-V", str(variables_file), "-d",
  66             str(results_path), str(test_path)]
  67
  68     print('Executing testcase {}'.format(name))
  69     print('show_stopper {}'.format(show_stopper))
  70     print('Invoking {}'.format(args))
  71     try:
  72         status = subprocess.call(args, shell=False)
  73         if status != 0 and show_stopper.lower() == "true":
  74             raise ShowStopperError(name)
  75     except OSError:
  76         #print('Error while executing {}'.format(args))
  77         raise BluvalError(OSError)
  78
  79
  80 def validate_layer(blueprint, layer):
  81     """validates a layer by validating all testcases under that layer
  82     """
  83     print('## Layer {}'.format(layer))
  84     for testcase in blueprint[layer]:
  85         testcase['layer'] = layer
  86         run_testcase(testcase)
  87
  88
  89 def validate_blueprint(yaml_loc, layer):
  90     """Parse yaml file and validates given layer. If no layer given all layers
  91     validated
  92     """
  93     with open(str(yaml_loc)) as yaml_file:
  94         yamldoc = yaml.safe_load(yaml_file)
  95     blueprint = yamldoc['blueprint']
  96     validate_layer(blueprint, layer)
  97
  98
  99 @click.command()
 100 @click.argument('blueprint')
 101 @click.option('--layer', '-l')
 102 @click.option('--optional_also', '-o', is_flag=True)
 103 def main(blueprint, layer, optional_also):
 104     """Takes blueprint name and optional layer. Validates inputs and derives
 105     yaml location from blueprint name. Invokes validate on blue print.
 106     """
 107     global _OPTIONAL_ALSO  # pylint: disable=global-statement
 108     mypath = Path(__file__).absolute()
 109     yaml_loc = mypath.parents[0].joinpath('bluval-{}.yaml'.format(blueprint))
 110     if layer is not None:
 111         layer = layer.lower()
 112     if optional_also:
 113         _OPTIONAL_ALSO = True
 114         print("_OPTIONAL_ALSO {}".format(_OPTIONAL_ALSO))
 115
 116     try:
 117         validate_blueprint(yaml_loc, layer)
 118     except ShowStopperError as err:
 119         print('ShowStopperError:', err)
 120     except BluvalError as err:
 121         print('Unexpected BluvalError', err)
 122         raise
 123     except:
 124         print("Exception in user code:")
 125         print("-"*60)
 126         traceback.print_exc(file=sys.stdout)
 127         print("-"*60)
 128         raise
 129
 130
 131 if __name__ == "__main__":
 132     # pylint: disable=no-value-for-parameter
 133     main()