Assign Statement
Step in Step Configuration Wizard
An Assign step defines a local TestComposer variable and assigns it a user-defined value or an expression.
For an explanation of the local variable type refer to About Variables .
To add an Assign statement step:
While in the Script Steps pane, add a step by choosing the Actions > Add step... command. Select an Assign step type, click thebutton to validate the selection, and specify the following parameters:
- Run Type : An Assign step can only be executed sequentially ( Sequential ).
- Delay : A delay specifying by how much step start is delayed. A delay value is automatically set when the step is added using the Capture functionality.
- Timeout : A period of time after which the step execution is considered to have timed out.
- Ignore step : When this option is selected, the step is skipped at execution time. Selecting this option is equivalent to right-clicking a step in the Script Steps table and choosing the Exclude command from the context menu that appears.
- Description : An optional step description can be associated with the step.
Click Next .
Define the Conditional Execution settings as explained below.Conditional Execution settings enable you to define the system conditions a script step execution is monitored for. When such a predefined condition occurs a step error or a step timeout an user-defined procedure is executed and an additional action is performed. For example, on encountering a step error, you could enforce the execution of a cleanup procedure and then terminate the script.
To monitor the step for a predefined Timeout or Error condition, select the corresponding condition, then define the associated procedure local or shared (external) by clicking the
control of the Procedure field and selecting a procedure from the the drop-down pane that appears.
For the selected procedure you can view its defined arguments by clicking the
control of the Input Arguments field, which displays a cascading table-format pane containing the argument list. To specify the actual runtime argument(s) enter the desired values in the Current Value field(s).
Configure an additional action by clicking into additional actions column and selecting either of the following options:
- Continue : After performing the specified procedure, the script execution continues.
- Exit Test : After performing the specified procedure, the script execution is terminated.
Click Next .
Whenever the step execution is monitored for predefined events, an
icon is displayed in the step's corresponding Events selected column entry. For information on turning on the displaying of the Events selected column refer to Customizing the Script Steps Table Layout .
Specify the variable to create by clicking into the field and editing its name in place. Alternatively select an existing variable by clicking thebutton and choosing it from the window that appears.
Create an expression to assign to the variable by clicking into the Expression field which brings up the Expression Builder GUI.
Define a valid Tcl expression or a multi-line code fragment by double-clicking in turn the desired Tcl commands and operators, and TestComposer variables. For detailed information on using the Expression Builder and creating Tcl expressions refer to Using the Composer Expression Builder .
Click Next .
Verify the step summary information and revert to a previous configuration step if needed. Click Finish .Examples:
Assign i 10 // number assignment
Assign str "string with spaces" // string assignment
Assign a $b //variable assignment
Assign lst {1 2 3 4} // list assignment
Assign lst {1 2 {one two} 3} //composite list assignment
Assign result [expr {$a +$b}] // expression assignment
Assign lst [list a b c d] // tcl command assignment
Assign path [pwd] // tcl command assignment
Assign time [clock seconds] //tcl command assignment
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