What's the time line?#

The time line offers the possibility to search for specific values in test cases. These values are displayed on a time bar. They can either be displayed as an event (if start and end time are identical) or period (if start and end time are different). It's possible to run the correspondent test case until such an event/period starts. Therefore it's possible to search for relevant data and gather chronological information.

How to use the time line?#

%%Timeline
@uses demo
%

An almost empty time line is displayed.

Query Language#

You need a simple query language to display single events/periods on the time bar.

Every line of code between

%%Timeline

and

@uses demo
%

corresponds to a line on the time bar which shows appropriate events/periods.

Example#

%%Timeline
Temperature < 20
@uses demo
%

Syntax#

For all following examples it can be assumed that the test case contains data about the temperature inside (INTEMP) and outside (OUTTEMP) of a car.

Less/Greater than#

    <
    >
XXX = VALUE FOR X min/sec/h
   >=
   <=

Example#

CodeExplanation
INTEMP >= 5 Displays all values of INTEMP on the time bar, which are greater than five. Sequel events where INTEMP wasn't < 5, are combined to one episode.
INTEMP < 5 FOR 10 min Displays all values of INTEMP on the time bar when INTEMP was less than five over a period of 10 minutes.

Value changes#

    'change   <
XXX 'increase    VALUE
    'decrease >

Example#

Code Explanation
INTEMP 'increase Displays all values of INTEMP on the time bar, where the INTEMP value is higher than the previous one.
INTEMP 'change In analogy to the previous example, but with the difference that every change is displayed.
INTEMP 'decrease > 10 Displays all values of INTEMP on the time bar, where the INTEMP value is at least 10 units higher than the previous one.

Unions/Intersections#

(XXX AND/OR YYY) FOR X sec/min/h
(XXX FOR X sec/min/h) AND/OR (YYY FOR X sec/min/h)

Example#

CodeExplanation
(INTEMP > 10) AND (OUTEMP < 5) Displays all episodes, where (INTEMP > 10) as well as (OUTTEMP < 5) are true.

The suffix "FOR X sec/min/h" is here always optional.

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This page (revision-20) was last changed on 10-Oct-2013 16:57 by StefanPlehn