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tc-testing: very simple example test cases

As part of documentation, supply some very simple test cases
to illustrate how test cases work.  One test case shows
commands in the setup, command, verify and teardown stages.
Other test cases show how to have a working test case that
does not have commands in the setup, verify and/or teardown
stages.

Specifically, the command lists for setup and teardown can
be empty.  And the verify command must have a command, but
it can be /bin/true.  The regex must have a string, we
recommend a single space, and the count of matches must be
zero if you do not want to use the match feature of verify.
Verify will always look for a return code of success (0)
so we give /bin/true when we do not want to make a check
there.

Also, update the documentation for testcases to be more
specific in the cases of:

    - accepting non-success return codes in setup and
      teardown stages
    - how to write the test when no setup, teardown
      and/or verify are desired.

To run the example test cases:

    $ sudo -E ./tdc.py -f creating-testcases/example.json -l
    1f: (example) simple test to test framework
    2f: (example) simple test, no need for verify
    3f: (example) simple test, no need for setup or teardown (or verify)
    $ sudo -E ./tdc.py -f creating-testcases/example.json
    Test 1f: simple test to test framework
    Test 2f: simple test, no need for verify
    Test 3f: simple test, no need for setup or teardown (or verify)
    All test results:

    1..3
    ok 1 1f simple test to test framework
    ok 2 2f simple test, no need for verify
    ok 3 3f simple test, no need for setup or teardown (or verify)

    $

Signed-off-by: Brenda J. Butler <bjb@mojatatu.com>
Acked-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Brenda J. Butler 2017-10-31 14:25:46 -04:00 committed by David S. Miller
parent ee7d163196
commit 7dfbe5b64f
3 changed files with 80 additions and 2 deletions

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@ -34,6 +34,12 @@ category: A list of single-word descriptions covering what the command
setup: The list of commands required to ensure the command under test
succeeds. For example: if testing a filter, the command to create
the qdisc would appear here.
This list can be empty.
Each command can be a string to be executed, or a list consisting
of a string which is a command to be executed, followed by 1 or
more acceptable exit codes for this command.
If only a string is given for the command, then an exit code of 0
will be expected.
cmdUnderTest: The tc command being tested itself.
expExitCode: The code returned by the command under test upon its termination.
tdc will compare this value against the actual returned value.
@ -49,6 +55,12 @@ matchCount: How many times the regex in matchPattern should match. A value
teardown: The list of commands to clean up after the test is completed.
The environment should be returned to the same state as when
this test was started: qdiscs deleted, actions flushed, etc.
This list can be empty.
Each command can be a string to be executed, or a list consisting
of a string which is a command to be executed, followed by 1 or
more acceptable exit codes for this command.
If only a string is given for the command, then an exit code of 0
will be expected.
SETUP/TEARDOWN ERRORS

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@ -0,0 +1,55 @@
[
{
"id": "1f",
"name": "simple test to test framework",
"category": [
"example"
],
"setup": [
"mkdir mytest"
],
"cmdUnderTest": "touch mytest/blorfl",
"expExitCode": "0",
"verifyCmd": "ls mytest/* | grep '[b]lorfl'",
"matchPattern": "orfl",
"matchCount": "1",
"teardown": [
"rm -rf mytest"
]
},
{
"id": "2f",
"name": "simple test, no need for verify",
"category": [
"example"
],
"setup": [
"mkdir mytest",
"touch mytest/blorfl"
],
"cmdUnderTest": "ls mytest/blorfl",
"expExitCode": "0",
"verifyCmd": "/bin/true",
"matchPattern": " ",
"matchCount": "0",
"teardown": [
"rm -rf mytest"
]
},
{
"id": "3f",
"name": "simple test, no need for setup or teardown (or verify)",
"category": [
"example"
],
"setup": [
],
"cmdUnderTest": "ip l l lo",
"expExitCode": "0",
"verifyCmd": "/bin/true",
"matchPattern": " ",
"matchCount": "0",
"teardown": [
]
}
]

View File

@ -26,7 +26,13 @@
""
],
"setup": [
""
"",
[
"",
0,
1,
255
]
],
"cmdUnderTest": "",
"expExitCode": "",
@ -34,7 +40,12 @@
"matchPattern": "",
"matchCount": "",
"teardown": [
""
"",
[
"",
0,
255
]
]
}
]