Since 781f76b15 (test-lib: redirect stdin of tests) you can't simply put a
"bash &&" into a test for debugging purposes anymore. Instead you'll have
to use "bash <&6 >&3 2>&4".
As that invocation is not that easy to remember add the test_pause
convenience function. This function also checks if the -v flag is given
and will error out if that is not the case instead of letting the test
hang until ^D is pressed.
Signed-off-by: Jens Lehmann <Jens.Lehmann@xxxxxx>
---
Am 16.01.2012 23:51, schrieb Junio C Hamano:
> Jeff King <peff@xxxxxxxx> writes:
>
>> Nice. Many times I have added such a "bash" or "gdb" invocation then
>> forgotten "-v", only to scratch my head at why the test seemed to be
>> hanging.
>>
>> Two minor nits on the patch itself:
>> ...
>> 1. It may be worth putting a warning in the comment that this is never
>> to be used in a real test, but only temporarily inserted.
>>
>> 2. I do this not just with bash, but with "gdb". I wonder if it is worth
>> making this "test_foo bash", for some value of "foo" (the ones that
>> occur to me are "debug" and "run", but of course they are taken).
>>
>> Actually, I wonder if the existing test_debug could handle this
>> already (though you do have to remember to add "--debug" to your
>> command line, then).
>
> I wondered the same thing from a different angle. My first reaction was
> "Why is this called 'bash' not 'sh'?" which naturally led to the same
> direction as yours "why not an arbitrary command 'test_debug xxx'?"
>
> test_pause perhaps?
I really don't care deeply about the name, so test_pause is absolutely
ok for me. I added some documentation in t/README too and made it an
error when --verbose is not used.
Is it ok to invoke bash here or should sh be used?
t/README | 13 +++++++++++++
t/test-lib.sh | 13 +++++++++++++
2 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/t/README b/t/README
index c85abaf..c09c582 100644
--- a/t/README
+++ b/t/README
@@ -548,6 +548,19 @@ library for your script to use.
...
'
+ - test_pause
+
+ This command is useful for writing and debugging tests and must be
+ removed before submitting. It halts the execution of the test and
+ spawns a shell in the trash directory. Exit the shell to continue
+ the test. Example:
+
+ test_expect_success 'test' '
+ git do-something >actual &&
+ test_pause &&
+ test_cmp expected actual
+ '
+
Prerequisites
-------------
diff --git a/t/test-lib.sh b/t/test-lib.sh
index a65dfc7..85084c4 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -329,6 +329,19 @@ test_tick () {
export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
}
+# Stop execution and start a shell. This is useful for debugging tests and
+# only makes sense together with "-v".
+#
+# Be sure to remove all invocations of this command before submitting.
+
+test_pause () {
+ if test "$verbose" = t; then
+ bash <&6 >&3 2>&4
+ else
+ error >&5 "test_pause requires --verbose"
+ fi
+}
+
# Call test_commit with the arguments "<message> [<file> [<contents>]]"
#
# This will commit a file with the given contents and the given commit
--
1.7.9.rc1.2.g0b847.dirty
--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html