zsh-syntax-highlighting/tests/README.md
Daniel Shahaf c015339202 tests: Provide an independent, auto-cleaned working directory to each test.
Fixes zsh-users/zsh-syntax-highlighting#182.
Prerequisite for testing issue #228.

* tests/test-highlighting.zsh
  (run_test): Move functionality to run_test_internal; make run_test be a wrapper
    that handles creating and cleaning up the tempdir.

* tests/README.md: Document the new feature.

* "highlighters/main/test-data/path-space- .zsh"
* highlighters/main/test-data/path-tilde-named.zsh
* highlighters/main/test-data/path.zsh
    Change test data to not depend on being run from the source directory.
2015-11-16 22:54:52 +00:00

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1.7 KiB
Markdown

zsh-syntax-highlighting / tests
===============================
Utility scripts for testing zsh-syntax-highlighting highlighters.
The tests harness expects the highlighter directory to contain a `test-data`
directory with test data files.
See the [main highlighter](../highlighters/main/test-data) for examples.
Each test should define the array parameter `$expected_region_highlight`.
The value of that parameter is a list of `"$i $j $style [$todo]"` strings.
Each string specifies the highlighting that `$BUFFER[$i,$j]` should have;
that is, `$i` and `$j` specify a range, 1-indexed, inclusive of both endpoints.
If `$todo` exists, the test point is marked as TODO (the failure of that test point will not fail the test), and `$todo` is used as the explanation.
_Note_: `$region_highlight` uses the same `"$i $j $style"` syntax but interprets the indexes differently.
**Isolation**: Each test is run in a separate subshell, so any variables, aliases, functions, etc.,
it defines will be visible to the tested code (that computes `$region_highlight`), but will not affect
subsequent tests. The current working directory of tests is set to a newly-created empty directory,
which is automatically cleaned up after the test exits.
highlighting test
-----------------
[`test-highlighting.zsh`](tests/test-highlighting.zsh) tests the correctness of the highlighting. Usage:
zsh test-highlighting.zsh <HIGHLIGHTER NAME>
All tests may be run with
make test
which will run all highlighting tests and report results in [TAP](http://testanything.org/) format.
performance test
----------------
[`test-perfs.zsh`](tests/test-perfs.zsh) measures the time spent doing the highlighting. Usage:
zsh test-perfs.zsh <HIGHLIGHTER NAME>
All tests may be run with
make perf