automake: Testsuite progress output

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1 15.3.3.3 Testsuite progress output
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1 A custom test driver also has the task of displaying, on the standard
1 output, the test results as soon as they become available.  Depending on
1 the protocol in use, it can also display the reasons for failures and
1 skips, and, more generally, any useful diagnostic output (but remember
1 that each line on the screen is precious, so that cluttering the screen
1 with overly verbose information is bad idea).  The exact format of this
1 progress output is left up to the test driver; in fact, a custom test
1 driver might _theoretically_ even decide not to do any such report,
1 leaving it all to the testsuite summary (that would be a very lousy
1 idea, of course, and serves only to illustrate the flexibility that is
1 granted here).
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1    Remember that consistency is good; so, if possible, try to be
1 consistent with the output of the built-in Automake test drivers,
1 providing a similar “look & feel”.  In particular, the testsuite
1 progress output should be colorized when the ‘--color-tests’ is passed
1 to the driver.  On the other end, if you are using a known and
1 widespread test protocol with well-established implementations, being
1 consistent with those implementations’ output might be a good idea too.
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