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-rw-r--r--t/README73
1 files changed, 59 insertions, 14 deletions
diff --git a/t/README b/t/README
index ab386c3681..24ddebfabf 100644
--- a/t/README
+++ b/t/README
@@ -84,9 +84,10 @@ appropriately before running "make".
-x::
Turn on shell tracing (i.e., `set -x`) during the tests
- themselves. Implies `--verbose`. Note that in non-bash shells,
- this can cause failures in some tests which redirect and test
- the output of shell functions. Use with caution.
+ themselves. Implies `--verbose`.
+ Ignored in test scripts that set the variable 'test_untraceable'
+ to a non-empty value, unless it's run with a Bash version
+ supporting BASH_XTRACEFD, i.e. v4.1 or later.
-d::
--debug::
@@ -265,12 +266,12 @@ or:
$ sh ./t9200-git-cvsexport-commit.sh --run='-3 21'
-As noted above, the test set is built going though items left to
-right, so this:
+As noted above, the test set is built by going through the items
+from left to right, so this:
$ sh ./t9200-git-cvsexport-commit.sh --run='1-4 !3'
-will run tests 1, 2, and 4. Items that comes later have higher
+will run tests 1, 2, and 4. Items that come later have higher
precedence. It means that this:
$ sh ./t9200-git-cvsexport-commit.sh --run='!3 1-4'
@@ -332,13 +333,10 @@ Writing Tests
-------------
The test script is written as a shell script. It should start
-with the standard "#!/bin/sh" with copyright notices, and an
+with the standard "#!/bin/sh", and an
assignment to variable 'test_description', like this:
#!/bin/sh
- #
- # Copyright (c) 2005 Junio C Hamano
- #
test_description='xxx test (option --frotz)
@@ -455,6 +453,22 @@ Don't:
causing the next test to start in an unexpected directory. Do so
inside a subshell if necessary.
+ - save and verify the standard error of compound commands, i.e. group
+ commands, subshells, and shell functions (except test helper
+ functions like 'test_must_fail') like this:
+
+ ( cd dir && git cmd ) 2>error &&
+ test_cmp expect error
+
+ When running the test with '-x' tracing, then the trace of commands
+ executed in the compound command will be included in standard error
+ as well, quite possibly throwing off the subsequent checks examining
+ the output. Instead, save only the relevant git command's standard
+ error:
+
+ ( cd dir && git cmd 2>../error ) &&
+ test_cmp expect error
+
- Break the TAP output
The raw output from your test may be interpreted by a TAP harness. TAP
@@ -658,7 +672,7 @@ library for your script to use.
test_expect_code 1 git merge "merge msg" B master
'
- - test_must_fail <git-command>
+ - test_must_fail [<options>] <git-command>
Run a git command and ensure it fails in a controlled way. Use
this instead of "! <git-command>". When git-command dies due to a
@@ -666,17 +680,32 @@ library for your script to use.
treats it as just another expected failure, which would let such a
bug go unnoticed.
- - test_might_fail <git-command>
+ Accepts the following options:
+
+ ok=<signal-name>[,<...>]:
+ Don't treat an exit caused by the given signal as error.
+ Multiple signals can be specified as a comma separated list.
+ Currently recognized signal names are: sigpipe, success.
+ (Don't use 'success', use 'test_might_fail' instead.)
+
+ - test_might_fail [<options>] <git-command>
Similar to test_must_fail, but tolerate success, too. Use this
instead of "<git-command> || :" to catch failures due to segv.
+ Accepts the same options as test_must_fail.
+
- test_cmp <expected> <actual>
Check whether the content of the <actual> file matches the
<expected> file. This behaves like "cmp" but produces more
helpful output when the test is run with "-v" option.
+ - test_cmp_rev <expected> <actual>
+
+ Check whether the <expected> rev points to the same commit as the
+ <actual> rev.
+
- test_line_count (= | -lt | -ge | ...) <length> <file>
Check whether a file has the length it is expected to.
@@ -803,11 +832,23 @@ use these, and "test_set_prereq" for how to define your own.
Test is not run by root user, and an attempt to write to an
unwritable file is expected to fail correctly.
- - LIBPCRE
+ - PCRE
- Git was compiled with USE_LIBPCRE=YesPlease. Wrap any tests
+ Git was compiled with support for PCRE. Wrap any tests
that use git-grep --perl-regexp or git-grep -P in these.
+ - LIBPCRE1
+
+ Git was compiled with PCRE v1 support via
+ USE_LIBPCRE1=YesPlease. Wrap any PCRE using tests that for some
+ reason need v1 of the PCRE library instead of v2 in these.
+
+ - LIBPCRE2
+
+ Git was compiled with PCRE v2 support via
+ USE_LIBPCRE2=YesPlease. Wrap any PCRE using tests that for some
+ reason need v2 of the PCRE library instead of v1 in these.
+
- CASE_INSENSITIVE_FS
Test is run on a case insensitive file system.
@@ -817,6 +858,10 @@ use these, and "test_set_prereq" for how to define your own.
Test is run on a filesystem which converts decomposed utf-8 (nfd)
to precomposed utf-8 (nfc).
+ - PTHREADS
+
+ Git wasn't compiled with NO_PTHREADS=YesPlease.
+
Tips for Writing Tests
----------------------