--- /dev/null
+The test program
+----------------
+
+We need a test program that:
+
+ - can read a file with the test specs
+ - construct a pipeline using the pipeline definition in the spec file
+ (using gst_parse_launch ())
+ - add signals to elements in the pipeline
+ - run the pipeline for a fixed (in time/number of iterations) period
+ - record the fireing of the signals
+ - compare the signals to the expected results.
+
+
+spec file contents:
+-------------------
+
+tcN: name-of-the-tescase
+tcP: pipeline of the testcase in gst_parse_launch () syntax.
+tcS: id1, element, signalname (attach to signal in an element)
+tcS: id2, element, signalname
+...
+tcR: id1,1,id2,1,.. (the pattern of signals trigered)
+or
+tcR: id1==id2,... (denote an equal number of signals)
+/n
+
+
+signal trigger patterns
+-----------------------
+
+
+