The main source of information is the DejaGnu user guide by Rob Savoye [3]. The most useful section is the Unit Testing API, which lists all the procedures. Follow these instructions as closely a possible in order get a good insight into how DejaGnu works, else you might run into a lot of subtle problems. You have. DejaGnu uses the GNU autoconf to configure itself. For more info on using autoconf, read the GNU autoconf manual. To configure, execute the configure.

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Tests are usually written in expect using Tcl, but you can also use a Tcl script to run a test denagnu that is not based on expect.

An assertion is a description of behavior. For example, interactive programs do not lend themselves very well to automated testing. The actual names of the directories containing tests must be prefixed by the dekagnu of the tool, and by convention end with the suffix.

DejaGnu has a number of global variables which are set to correspond to runtest command line arguments. Expect defines and uses a number of TCL global variables.

There is nothing that needs compiling. Computing results Final result is 42 Test complete. Free Software Foundation Patterns for use with the expect command. The framework has two parts: DejaGnu can be used standalone, but it is most useful when integrated with the GNU autotools autoconf automake and libtool. So it should be exported from the Makefile. Most cross-development environments are customized by each developer.


The result is that the name of the tests run will be shorter, making for clearer output. Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies.

Within each test directory, the tests, written in expectall have the file suffix. TCL is extensively documented on its website see www.

Command line option variables (DejaGnu)

These examples assume a native configuration, where the same computer runs both runtest and the tests themselves. Dejwgnu are a number of options which are not documented in the manual.

Only the first part is regenerated every time make is run, so changes may safely be made in the second half.

The results are triggered by calling the appropriate result procedure, which takes a string to identify the test concerned. If as is usual the command takes more than one line, the arguments must be surrounded by braces. We encourage you to make any test suites you create freely available, under the same terms as DejaGnu itself.

runtest(1) – Linux man page

To run tests from an existing collection, first use configure as usual to set up the source directory containing the tests. The communication interfaces vary from a serial line to ethernet. Indicates that a test has passed. PASS Indicates that a test has passed.


Triggered by calling the pass procedure. Setting up DejaGnu for the first time is a challenge. The possible results are as follows:. Display all test results if set default is only to display failures.

Writing tests using expect. However they can alternatively be set in the various configuration files if both are used, djeagnu command line takes precedence. It is important to note that the standard being tested is never See section Tcl Overviewfor details on Tcl.

In the near future, there are two parallel directions for DejaGnu development. It illustrates some of the main features of DejaGnu sejagnu scripts:.

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Double quotation marks are needed where the string contains a space. When running runtestmultiple test programs may be found in the test directory or directories. It is common to append additional directories to this search path dejaghu one of the earlier configuration directories typically the global config file to provide additional board specific information.

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