Common Restful Test Tool
Only Python3 is supported.
CRTT is shortened for Common [RESTful] Test Tool; it can be used in following occasions:
- Test the reliability of RESTful server
- Find unknown issue
- Stress test for RESTful server
- Key String matching
- This tool is intended to support all kinds of RESTful server, from Redfish to…
Install with pip3:
pip3 install CRTT
from CRTT.get_nodes import GET_NODE get_node=GET_NODE(host, client_app_ver, port) get_node.scan_node()
Or use build-in sample:
Arguments & CLI options:
- –help: Print help message and exit
- –config-dir: Path to a config directory to pull *.conf files from.
- –config-file: Path to a config file to use. Multiple config files can be specified, with values in later files taking precedence.
- –CLI-comp_file: The url response data comparing file
- –CLI-cycles: How many times we scan the nodes
- –CLI-time_to_stop: CLI_TIME_TO_STOP: If both this option and –CLI-cycles are set, the one which comes first will take effect.
- –CLI-retry: How many times retries after failure
Response check from URL:
The conf file for checking response from URL is defined in file value_check.conf by default, but you can also define it when run CLI, refer the help:
[MemoryModule] #The name of current url, can be found by key "Name" SizeGB= 16 #The size of memory of current url VoltageVolt= 1.21 < 1.30 < x < 1.40 < 1.51 #The threshold check format, it should have LowerThresholdFatal, LowerThresholdWarning, UpperThresholdWarning, UpperThresholdCritical
If the node_name or the check_key is not defined properly, it won’t check without any warning.
For Advanced user:
This application provides a config file to let user customize, modify. One can change the setting in file CRTT.conf, here is the help for this document:
[REST] root_node='http://10.204.29.243:8888/redfish/v1/Chassis/Defaultstring/Thermal' #Noen by default, This one will take effect of rest of this section. client_name=redfish #The name of the RESTful client application. host=10.204.29.244 #The IP of this RESTful server bind_port = 8888 #The port of the RESTful service. ver_support = 1 #The ver list of the RESTful client application. client_app_ver=1 #The ver of this RESTful client app subnode_keys= '@odata.id' # All sub nodes should be found in a dict, and this defines the key to find sub nodes [MAIN] value_file=Red_lib/product/url_dict.conf #This file is used to check the #response(response is in JSON format) from RESTful server . cycle=20 #How many cycles to scan all the nodes processes =4 #How many of processes in this running host [LOG] app_name='redfish_test' #The log channel name logfilename='redfish.html' #The file name to save html log file log_format='%(asctime)s %(name)-12s %(levelname)-8s %(message)s' root_level=10 #The root log level ch_level=10 #The log level for console stream logging fh_level=20 #The log level for html file stream logging html_color=color_2 #How we display the msg in the html file, it has options, choose one from below dict. color_1=err_color: red, warn_color: yellow, info_color: white, dbg_color: white color_2=err_color: red, warn_color: orange, info_color: white, dbg_color:blue Keyword_Italic=True #The setting of keyword in html log Keyword_FontSize=3 #The setting of keyword in html log Keyword_tag_start="<hl>" #The setting of keyword in html log Keyword_tag_end="</hl>" #The setting of keyword in html log title=Red fish log #The tile for html log console_log=True #Display log to console? HtmlmaxBytes=52428800 # You can specify particular values of maxBytes and backupCount to allow the #file to rollover at predetermined size if rotating is set to True, otherwise #rotate file without backCount limited. Html_backupCount=5 Html_Rotating=True [REQUEST] http_time_warn=0.5 #Setting of response time from RESTful server http_time_error=1.2 #Setting of response time from RESTful server timeout=3 #The max time(second) to get response from RESTful server retries=4 #How many times to retry if error occurs delay=1.5 #Time delay during a next retry if error occurs backoff=2 #backoff of delay failonerror=False #Stop test if fail still occurs if retries.
This file contains classes and functions: GEN_URL, GET_NODE, URL_REQUEST and Responses check:
GEN_URL: This class is to build complete URL.
A complete URL to interact with RESTful server is like this: :
here is example to use:
url=GEN_URL('10.204.29.221') gen_url=GEN_URL('10.204.29.221') url=gen_url.get_url('/redfish/v1/Managers/1')
GET_NODE: Scan and find all the child nodes from root(is node_path=None) or any node that is defined in function “scan_node”, and put them into a list, during this scanning and searching, one can compare the value returned from RESTful server . url_list contains all the urls after scanning.
URL_REQUEST: Send Request to RESTful server, generally, the request should be one of GET, PUT, POST, DELETE. This class can handle all http errors. Example:
url_request=URL_REQUEST('http://10.204.29.221:8888/redfish/v1/Managers/1',username,password) url_request.get_req(value) #Value: a python dict
Reponse_check: It has two functions: 1. Check the response from RESTful server which defined in file [url_dict.conf] 2. Check if request time exceeds the limit.
This file is an independent module, it’s a decorator and used to retry a function in a particular error occurs. retry calling the decorated function using an exponential backoff. Example:
@retry(ExceptionToCheck=ValueError, tries=3, delay=1, backoff=1,stoponerror=False, logger=None) def foo(): try: raise ValueError except ValueError as ve: raise
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