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annotate src/testdir/README.txt @ 18478:94223687df0e

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Added tag v8.1.2233 for changeset e93cab5d0f0f27fad7882f1f412927df055b090d
author Bram Moolenaar <Bram@vim.org>
date Tue, 29 Oct 2019 04:30:05 +0100
parents e992f31274b7
children 07627d1b4d8c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 This directory contains tests for various Vim features.
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2 For testing an indent script see runtime/indent/testdir/README.txt.
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4 If it makes sense, add a new test method to an already existing file. You may
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5 want to separate it from other tests with comment lines.
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7 The numbered tests are older, we have switched to named tests. Don't add any
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8 more numbered tests.
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10 And then you can choose between a new style test, which is a Vim script, or an
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11 old style test, which uses Normal mode commands. Use a new style test if you
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12 can. Use an old style test when it needs to run without the +eval feature.
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15 TO ADD A NEW STYLE TEST:
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17 1) Create a test_<subject>.vim file.
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18 2) Add test_<subject>.res to NEW_TESTS_RES in Make_all.mak in alphabetical
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19 order.
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20 3) Also add an entry "test_<subject>" to NEW_TESTS in Make_all.mak.
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21 4) Use make test_<subject> to run a single test.
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23 At 2), instead of running the test separately, it can be included in
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24 "test_alot". Do this for quick tests without side effects. The test runs a
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25 bit faster, because Vim doesn't have to be started, one Vim instance runs many
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26 tests.
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29 What you can use (see test_assert.vim for an example):
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31 - Call assert_equal(), assert_true(), assert_false(), etc.
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32
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33 - Use assert_fails() to check for expected errors.
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35 - Use try/catch to avoid an exception aborts the test.
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37 - Use test_alloc_fail() to have memory allocation fail. This makes it possible
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38 to check memory allocation failures are handled gracefully. You need to
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39 change the source code to add an ID to the allocation. Add a new one to
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40 alloc_id_T, before aid_last.
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42 - Use test_override() to make Vim behave differently, e.g. if char_avail()
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43 must return FALSE for a while. E.g. to trigger the CursorMovedI autocommand
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44 event. See test_cursor_func.vim for an example.
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46 - If the bug that is being tested isn't fixed yet, you can throw an exception
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47 with "Skipped" so that it's clear this still needs work. E.g.: throw
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48 "Skipped: Bug with <c-e> and popupmenu not fixed yet"
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50 - See the start of runtest.vim for more help.
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53 TO ADD A SCREEN DUMP TEST:
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55 Mostly the same as writing a new style test. Additionally, see help on
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56 "terminal-dumptest". Put the reference dump in "dumps/Test_func_name.dump".
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59 TO ADD AN OLD STYLE TEST:
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61 1) Create test_<subject>.in and test_<subject>.ok files.
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62 2) Add test_<subject>.out to SCRIPTS_ALL in Make_all.mak in alphabetical order.
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63 3) Use make test_<subject>.out to run a single test in src/testdir/.
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64 Use make test_<subject> to run a single test in src/.
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65 4) Also add an entry in src/Makefile.
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67 Keep in mind that the files are used as if everything was typed:
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68 - To add comments use: :" (that's an Ex command comment)
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69 - A line break is like pressing Enter. If that happens on the last line
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70 you'll hear a beep!