Ed Santiago c81fbd5d0a System tests: assert(): friendlier failure messages ...

...safer, too: the big change is using 'mapfile' to split
multiline strings; this preserves empty lines, making it
easy to see spurious (or missing) blank lines in output.

Another change is to indent the expected-output string
consistently, for readability.

Then, to handle \r (CR) and other control characters, use
bash %q to format special chars. But %q makes\ it\ hard\ to
read\ lines\ with\ spaces, so strip off those backslashes.
This makes assert() much larger and uglier, but this is
code that shouldn't be touched often.

Finally, because these are big changes to critical code,
write a complicated regression test suite for assert().

Signed-off-by: Ed Santiago <santiago@redhat.com>

2023-02-16 17:47:10 -07:00

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