9b64ad750f
Fixes zsh-users/zsh-syntax-highlighting#262. Currently, 'make quiet-test' uses Perl. However, since it is considered a development tool rather than a user-facing tool, users and downstream packages needn't install Perl. Furthermore, even this dev-only dependency may be dropped in the future. The only difference between tests/tap-filter here and the one in the issue is using a `cat` subshell v. using 'undef $/; <STDIN>'.
59 lines
2.0 KiB
Markdown
59 lines
2.0 KiB
Markdown
zsh-syntax-highlighting / tests
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===============================
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Utility scripts for testing zsh-syntax-highlighting highlighters.
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The tests harness expects the highlighter directory to contain a `test-data`
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directory with test data files.
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See the [main highlighter](../highlighters/main/test-data) for examples.
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Each test should define the array parameter `$expected_region_highlight`.
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The value of that parameter is a list of strings of the form `"$i $j $style"`.
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or `"$i $j $style $todo"`.
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Each string specifies the highlighting that `$BUFFER[$i,$j]` should have;
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that is, `$i` and `$j` specify a range, 1-indexed, inclusive of both endpoints.
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If `$todo` exists, the test point is marked as TODO (the failure of that test
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point will not fail the test), and `$todo` is used as the explanation.
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**Note**: `$region_highlight` uses the same `"$i $j $style"` syntax but
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interprets the indexes differently.
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**Isolation**: Each test is run in a separate subshell, so any variables,
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aliases, functions, etc., it defines will be visible to the tested code (that
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computes `$region_highlight`), but will not affect subsequent tests. The
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current working directory of tests is set to a newly-created empty directory,
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which is automatically cleaned up after the test exits.
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Highlighting test
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-----------------
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[`test-highlighting.zsh`](tests/test-highlighting.zsh) tests the correctness of
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the highlighting. Usage:
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zsh test-highlighting.zsh <HIGHLIGHTER NAME>
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All tests may be run with
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make test
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which will run all highlighting tests and report results in [TAP format][TAP].
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By default, the results of all tests will be printed; to show only "interesting"
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results (tests that failed but were expected to succeed, or vice-versa), run
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`make quiet-test` (or `make test QUIET=y`).
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[TAP]: http://testanything.org/
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Performance test
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----------------
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[`test-perfs.zsh`](tests/test-perfs.zsh) measures the time spent doing the
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highlighting. Usage:
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zsh test-perfs.zsh <HIGHLIGHTER NAME>
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All tests may be run with
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make perf
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