annotate tests/README @ 1933:7544700fd931

Use 'hg ci -d "1000000 0"' in tests to circumvent problem with leading zero.
Some systems show "Thu Jan 01" instead of "Thu Jan  1", which breaks tests.
Using "1000000" yields "Mon Jan 12 13:46:40 1970", which looks the same on
all systems.

A simple testing framework

To run the tests, do:

cd tests/
./run-tests

This finds all scripts in the test directory named test-* and executes
them. The scripts can be either shell scripts or Python. Each test is
run in a temporary directory that is removed when the test is complete.

A test-<x> succeeds if the script returns success and its output
matches test-<x>.out. If the new output doesn't match, it is stored in
test-<x>.err.

There are some tricky points here that you should be aware of when
writing tests:

- hg commit and hg up -m want user interaction

  for commit use -m "text"
  for hg up -m, set HGMERGE to something noninteractive (like true or merge)

- changeset hashes will change based on user and date which make
  things like hg history output change

  use commit -m "test" -u test -d "1000000 0"

- diff will show the current time

  use hg diff | sed "s/\(\(---\|+++\) [a-zA-Z0-9_/.-]*\).*/\1/" to strip
  dates