Testing with the Command Runner - AWK v2 style!

Testing with the Command Runner - AWK v2 style!
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Be sure to test using the latest Command Runner to accomodate the latest IKL directory structure changes and new AWK parser. As a rule of thumb, always make sure you run with the latest.

One can use the command-runner in order to either run or create tests. The command-runner will automatically create and modify all the aforementioned files - the test file, the test-case folders, the inputs files and the output files.

For instructions on the specific arguments for the command-runner needed to run/create the tests please refer to the command-runner usage (--help).


Running the tests

Running the test only requires the path to the command (the .ind file) and the existence of a test in the command’s test directory (duh). It is also possible to only run a specific test-case of the command’s test.

Here is an example for the command runner output when running a test successfully:

2017-10-31 19:31:18,900 INFO -- Starting command runner2017-10-31 19:31:18,904 INFO -- Running test for command 'C:\indeni-knowledge\parsers\src\checkpoint\clish\clish-config-unsaved.ind'2017-10-31 19:31:21,063 INFO -- Running test case '0'2017-10-31 19:31:22,405 INFO -- Running test case '1'2017-10-31 19:31:22,413 INFO -- Running test case '2'2017-10-31 19:31:22,421 INFO -- Running test case '3'2017-10-31 19:31:22,428 INFO -- Test of command 'C:\indeni-knowledge\parsers\src\checkpoint\clish\clish-config-unsaved.ind' has been completed successfully2017-10-31 19:31:22,428 INFO -- Exiting

As you can see, the test contained 4 different test-cases and all of them have passed.

In this example, the command has parsed a different output than expected:

2017-10-31 19:33:35,635 INFO -- Starting command runner
2017-10-31 19:33:35,644 INFO -- Running test for command "C:\indeni-knowledge\parsers\src\checkpoint\clish\clish-config-unsaved.ind"
2017-10-31 19:33:38,198 INFO -- Running test case "0"
2017-10-31 19:33:39,571 INFO -- Running test case "1"
2017-10-31 19:33:39,578 INFO -- Running test case "2"
2017-10-31 19:33:39,587 ERROR -- Critical failure running command runner
java.lang.AssertionError: Result doesn"t have the same metrics as expected. Expected: Set(DoubleMetric(Map(im.dstype -> gauge, im.dstype.displaytype -> boolean, im.name -> config-unsaved, live-config -> true, display-name -> Configuration Unsaved?),1.0,0)), but got: Set(DoubleMetric(Map(im.dstype -> gauge, im.dstype.displaytype -> boolean, im.name -> config-unsaved, live-config -> true, display-name -> Configuration Unsaved?),0.0,0))
          at indeni.collector.commandrunner.testing.CommandParsingTester.indeni$collector$commandrunner$testing$CommandParsingTester$$assertResult(CommandParsingTester.scala:170)
          at indeni.collector.commandrunner.testing.CommandParsingTester$$anonfun$runTest$2$$anonfun$apply$1.apply$mcV$sp(CommandParsingTester.scala:100)


Here, we see that an AssertionError has occurred while running the test case named 2; it tells us that we got a different result than expected, and then proceeds with describing what was expected (Expected:) and what was actually produced by the parser (but got:). There is currently no way to pinpoint the differences between the results other than copy-pasting them aside to any third-party tool with that capability.

Of course, the test might fail if the command has caused an error:

2017-10-31 19:37:26,789 INFO -- Starting command runner2017-10-31 19:37:26,795 INFO -- Running test for command 'C:\indeni-knowledge\parsers\src\checkpoint\clish\clish-config-unsaved.ind'2017-10-31 19:37:29,311 INFO -- Running test case '0'2017-10-31 19:37:30,650 INFO -- Running test case '1'2017-10-31 19:37:30,666 ERROR -- failed to parse results of command: chkp-clish-config-unsaved, Failure(indeni.collector.ParsingFailure: Header = Parse Error,Description = Command [] chkp-clish-config-unsaved parser failed with input:unsaved1505144920installer:last_sent_da_info 1505144921,Message = Header = Execution Error,Description = Failed to execute AWK code,Message = For input string: "0,",,)2017-10-31 19:37:30,669 ERROR -- Critical failure running command runnerjava.lang.AssertionError: Parsing failed          at indeni.collector.commandrunner.testing.CommandParsingTester$$anonfun$runTest$2$$anonfun$apply$1.apply$mcV$sp(CommandParsingTester.scala:97)

These are the same type of errors that you may encounter when running the command-runner with either the parse-only or the full-command actions.

Creating the tests

Creating a new test-case for a command requires the path to the command, path to an input file and a name for that test-case. If the given input file is not formatted in the new format (described previously in this document), then the command-runner will automatically convert it to the new format as if it was the raw / plain-text input of the first step of the command.

Note that creating a test-case with the same name of a test-case which already exists will override that test-case, and there is currently no mechanism that raises a warning when this happens.

It is highly recommended to name a test-case in a meaningful and concise manner, so anyone looking at a test will be able to intuitively get an idea of which different cases the command has to handle.

There are no strict rules to which test-cases should be created for a command when designing its test. However, you might want to consider the following guidelines:

  • Choose quality over quantity; one shouldn’t add more test-cases if they don’t represent a case which is significantly different than the others.
  • Gradually add test-cases while writing the command; whenever you encounter a new type of data that your command has to handle, you’d might want to add this as a new test-case.
  • If a bug has been found in a command after it has already been committed or released, it is a good idea to first create a test-case which reproduces the bug and only then start to fixing it.