Environment Variables

Testwell CTC++ uses several dedicated environment variables, and some generic ones.

LM_LICENSE_FILE, TESTWELLD_LICENSE_FILE

The license server (for floating licenses) or the path to the license file (for evaluation licenses and node-locked licenses) can be stored in one of these variables. LM_LICENSE_FILE is used by all FlexNet-protected tools, TESTWELLD_LICENSE_FILE only by Testwell Tools.

CTC_DATA_PATH

The data file (MON.dat by default) is written to the directory specified with that variable. It can be used to determine the location at test time.

CTCHOME

On Windows, CTCHOME points to the installation folder of Testwell CTC++. On Linux, this variable must be set to the folder containing the configuration file ctc.ini after installation.

CTCOPTS

Options for the ctc call can also be set with this variable.

PATH

This environment variable is used by the operating system to search for executable files. During installation, the home directory of Testwell CTC++ is added to PATH. Additionally, ctcwrap uses it during a run.

TEMP, TMP (Windows)/ TMPDIR (Linux)

By default, ctc writes intermediate files to the directories for temporary files specified with these variables. With the configuration parameter TMP_DIRECTORY, this location can be overruled.

CTCINIT

The user can set this variable to define a list of configuration files (ctc.ini) additionally used. See Hierarchy of Configuration Files and Command Blocks for details.

CTCWRAPDIR

This environment variable is, despite its name, set and used by the Visual Studio Integration. The user should not change it.

CTCWRAPDIR_ROOT

The tool ctcwrap reads this variable to determine the location for ctcwrap-internal, intermediate files. If not set (the standard case), TEMP is used instead.

CTC_LOCK_MAX_WAIT

(deprecated) For symbol and data files, a locking mechanism based on .lock files was used until version 9.0.3. If this variable defining the maximum time to wait is (still) set, also newer versions use that locking mechanism.