Command line

doctest works quite nicely without any command line options at all - but for more control there are a bunch that are available.

Query flags - after the result is printed the program quits without executing any test cases (and if the framework is integrated into a client codebase which supplies it's own main() entry point - the program should check the result of doctest::Context::shouldExit() after calling doctest::Context::run() and should exit - this is left up to the user).

Int/String options - they require a value after the = sign - without spaces! For example: --order-by=rand.

Bool options - they expect 1/yes/on/true or 0/no/off/false after the = sign - but they can also be used like flags and the =value part can be skipped - then true is assumed.

Filters use wildcards for matching values - where * means "match any sequence" and ? means "match any one character". To pass a pattern with an interval use "" like this: --test-case="*no sound*,vaguely named test number ?".

All the options can also be set with code if the user supplies the main() function so an option is always with some value.

Query FlagsDescription
-?     --help -hPrints a help message listing all these flags/options
-v     --versionPrints the version of the doctest framework
-c     --countPrints the number of test cases matching the current filters (see below)
-ltc --list-test-casesLists all test cases by name which match the current filters (see below)
-lts --list-test-suitesLists all test suites by name which have at least one test case matching the current filters (see below)
Int/String Options
-tc   --test-case=<filters>Filters test cases based on their name. By default all test cases match but if a value is given to this filter like --test-case=*math*,*sound* then only test cases who match atleast one of the patterns in the comma-separated list with wildcards will get executed/counted/listed
-tce --test-case-exclude=<filters>Same as the -test-case=<filters> option but if any of the patterns in the comma-separated list of values matches - then the test case is skipped
-sf   --source-file=<filters>Same as --test-case=<filters> but filters based on the file in which test cases are written
-sfe --source-file-exclude=<filters>Same as --test-case-exclude=<filters> but filters based on the file in which test cases are written
-ts   --test-suite=<filters>Same as --test-case=<filters> but filters based on the test suite in which test cases are in
-tse --test-suite-exclude=<filters>Same as --test-case-exclude=<filters> but filters based on the test suite in which test cases are in
-ob   --order-by=<string>Test cases will be sorted before being executed either by the file in which they are / the test suite they are in / their name / random. The possible values of <string> are file/suite/name/rand. The default is file
-rs   --rand-seed=<int>The seed for random ordering
-f     --first=<int>The first test case to execute which passes the current filters - for range-based execution - see the example (the run.py script)
-l     --last=<int>The last test case to execute which passes the current filters - for range-based execution - see the example (the run.py script)
-aa   --abort-after=<int>The testing framework will stop executing test cases/assertions after this many failed assertions. The default is 0 which means don't stop at all
Bool Options
-s     --success=<bool>To include successful assertions in the output
-cs   --case-sensitive=<bool>Filters being treated as case sensitive
-e     --exit=<bool>Exits after the tests finish - this is meaningful only when the client has provided the main() entry point - the program should check doctest::Context::shouldExit() after calling doctest::Context::run() and should exit - this is left up to the user. The idea is to be able to execute just the tests in a client program and to not continue with it's execution
-nt   --no-throw=<bool>Skips exceptions-related assertion checks
-ne   --no-exitcode=<bool>Always returns a successful exit code - even if a test case has failed
-nr   --no-run=<bool>Skips all runtime doctest operations (except the test registering which happens before the program enters main()). This is useful if the testing framework is integrated into a client codebase which has provided the main() entry point and the user wants to skip running the tests and just use the program
-nc   --no-colors=<bool>Disables colors in the output
-nb   --no-breaks=<bool>Disables breakpoints in debuggers when an assertion fails
-npf --no-path-filenames=<bool>Paths are removed from the output when a filename is printed - useful if you want the same output from the testing framework on different environments
                                                                 

All the flags/options also come with a prefixed version (with -dt- at the front) - for example --version can be used also with --dt-version or -dt-v.

All the unprefixed versions listed here can be disabled with the DOCTEST_CONFIG_NO_UNPREFIXED_OPTIONS define.

This is done for easy interoperability with client command line option handling when the testing framework is integrated within a client codebase - all doctest related flags/options can be prefixed so there are no clashes and so that the user can exclude everything starting with -dt- from their option parsing.


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