This is to limit the copy-pasta involved in running C tests. I decided
to keep things simple and not try to provide an actual C skeleton.
The setting of LD_LIBRARY_PATH is to force using the built libnotmuch
rather than any potential system one.
When something in tests fails one possibility to test is to run
the test script as `bash -x TXXX-testname.sh`. As stderr (fd 2) was
redirected to separate file during test execution also this set -x
(xtrace) output would also go there.
test-lib.sh saves the stderr to fd 7 from where it can be restored,
and bash has BASH_XTRACEFD variable, which is now given the same value
7, making bash to output all xtrade information (consistently) there.
This lib file used to save fd's 1 & 2 to 6 & 7 (respectively) in
test_begin_subtest(), but as those needs to be set *before* XTRACEFD
variable is set those are now saved at the beginning of the lib (once).
This is safe and simple thing to do.
To make xtrace output more verbose PS4 variable was set to contain the
source file, line number and if execution is in function, that function
name. Setting this variable has no effect when not xtracing.
As it is known that fd 6 is redirected stdout, printing status can now
use that fd, instead of saving stdout to fd 5 and use it.
At the moment, the test-lib fills in any missing headers. This makes
it impossible to test our handling of empty subjects. This will
allow us to use a special dummy subject -- `@FORCE_EMPTY` -- to force
the subject to remain empty.
The unread/read changes will use the post-command-hook. test_emacs
does not call the post-command-hook. This adds a notmuch-test-progn
which takes a list of commands as argument and executes them in turn
but runs the post-command-hook after each one.
The caller can batch operations (ie to stop post-command-hook from
being interleaved) by wrapping the batch of operations inside a progn.
We also explicitly run the post-command-hook before getting the output
from a test; this makes sense as this will be a place the user would
be seeing the information.
At least in emacs24, this removes the "site-lisp" directories from the
load path in addition to enforcing --no-site-lisp --no-init-file.
This works around a slightly mysterious bug on Debian that causes
test-lib.el not to load when there is cl-lib.el(c) in some site-lisp
directory. It should be harmless in general since we really don't
want to load any files from addon packages to emacs.
The printf builtin "%(fmt)T" specifier (which allows time values
to use strftime-like formatting) is introduced in bash 4.2.
Trying to execute this in pre-4.2 bash will fail -- and if this
happens execute the fallback piece of perl code to do the same thing.
The test names assigned to NOTMUCH_SKIP_TESTS variable can now be given
with or without the Tddd- prefix for tester convenience:
The test name without Tddd -prefix stays constant even when test filenames
are renumbered.
The test name with Tddd -prefix is printed out when tests run.
Previously, we stripped the "Tnnn-" part from the test name when
printing its description at the beginning of each test. However, this
makes it difficult to find the source script for a test (e.g., when a
test fails). Put this prefix back.
Script `notmuch-test` expects the results file have T\d\d\d- part
intact so the results files (and some test output files) are now
name as such.
Without this change `notmuch-test` will exit in case the test
script it was executing exited with nonzero value.
The T\d\d\d- part is dropped in new variable $this_test_bare which is
used in progress informational messages and when loading .el files in
emacs tests (whenever $this_test_bare.el exists).
All test scripts to be executed are now named as T\d\d\d-name.sh,
numers in increments of 10.
This eases adding new tests and developers to see which are test scripts
that are executed by test suite and in which order.
There is an obscure bug in notmuch-hello that very occasionally causes
emacs_deliver_message to fail. Since it it doesn't serve any actual
purpose in the function we delete it, and leave tracking down the the
bug for another day.
Most of the tests previously using emacs_deliver_message do not use
the actual transmitted message, so we replace it with a simpler (and
presumably more reliable function) that only saves (and indexes) an
fcc copy of the message.
When NOTMUCH_TEST_QUIET environment variable is set to non-null value
messages when new test script starts and when test PASSes are disabled.
This eases picking the cases when tests FAIL (as those are still printed).
In preparation for quiet mode print empty line before writing the
test description. This is done now in function designed for it --
it will also be called when test fails.
test-lib.sh sometimes did equivalent of `basename "$0" .sh`, sometimes
skipping the basename part and sometimes .sh part. This worked as
we never had path components in $0 (more than ./) nor .sh ending.
Now the equivalent of `basename "$0" .sh` is done once and used
everywhere. In the future we may have .sh suffix in test names
-- removing those is a good idea.
The choice of decreasing timestamps is a hack which reduces the number
of existing tests which fail. This can be changed to increasing
if/when somebody wants update another 47 tests.
add a new function notmuch_date_sanitize for rfc822-ish things. Add
date sanitization to notmuch_show_sanitize_all and use it more places.
This is all in aid of a transition to unique timestamps on messages.
Eventually we want test messages to have distinct dates to avoid
reproducability problems. This sanitization will prevent some test
failures when that change is made.
Replace the use of a local function in maildir-sync with
notmuch_json_show_sanitize
When executed command line is written to *Notmuch errors* buffer,
shell-quote-argument will backslash-escape any char that is not in
"POSIX filename characters" (i.e. matching "[^-0-9a-zA-Z_./\n]").
Currently in two emacs tests shell has expanded $PWD as part of
emacs variable, which will later be fed to #'shell-quote-argument
and finally written to ERROR file. If $PWD contained non-POSIX
filename characters, data in ERROR file will not match $PWD when
later comparing in shell. Therefore, in these two particular cases
the escaped $PWD is replaced with YYY in ERROR file and expected
content is adjusted accordingly.
One test (reply to encrypted message in the crypto test) recently
started failing on some systems. The failure I saw were two extra
lines of the form
<87d2nbc5xg.fsf@host.i-did-not-set--mail-host-address--so-tickle-me>
The test pipes the output through
grep -v -e '^In-Reply-To:' -e '^References:'
which would normally these two ids but it does not, in this case,
because they are so long they get put on a separate line in the output.
To fix this we set mail-host-address for emacs deliver. example.com
seems a sensible address to use. This is short enough that we don't
get the line breaks above and the tests then all pass.
When 'xpg_echo' bash shell option is unset (usually the default)
echo builtin does not expand backslash-escape sequences by default
(i.e. '\n' is echoed as '\n' instead of newline). Not all bash
installations have this feature we depend on activated by default.
Note that the feature is bash (and GNU /bin/echo) specific. It is used
as it is convenient. If portability is needed (elsewhere) use printf(1)
(also often available as a shell builtin).
When execution of tests is interrupted by signal coming outside of the
test system itself, output just one line "interrupted by signal <num>"
message to standard output. This distinguishes the case from internal
exit and reduces noise.
Set the variable '$test_subtest_name' in all functions which starts
a new test and use that variable in all functions that output
test results.
Additionally output the latest '$test_subtest_name' in case of
abnormal exit, to avoid confusion.
The TERM environment variable is set to 'dumb' when running tests, but
the original value of it is stored for echoing colors and running emacs
(somewhat interactively) in detached session. Emacs requires some
terminal control sequences to be available for interactive operation.
In case original TERM is (also) 'dumb' (or unset/empty) emacs cannot
run interactively. To fix this problem dtach (and emacs as it's child
process) is run with TERM=vt100 in case original TERM was unset, empty
or 'dumb'. This way there is a chance to run emacs tests with different
user terminals and potentially find problems there.
notmuch_json_show_sanitize replaced "filename" field values even in part
structures, where the value is predictable. Make it only normalize the
filename value if it is an absolute path (begins with slash), which is
true of the Maildir filenames that were intended to be normalized away.
test_expect_equal_json uses json.tool from the system Python. While
Python 2 wasn't picky about the encoding of stdin, Python 3 decodes
stdin strictly according to the environment. Since we set LC_ALL=C
for the tests, Python 3's json.tool was assuming stdin would be in
ASCII and aborting when it couldn't decode the UTF-8 characters from
some of the JSON tests. This patch sets the PYTHONIOENCODING
environment variable to utf-8 when invoking json.tool to override
Python's default encoding choice.
Previously, the test framework generated a variable name for each
external prereq as a poor man's associative array. Unfortunately,
prereqs names may not be legal variable names, leading to
unintelligible bash errors like
test_missing_external_prereq_emacsclient.emacs24_=t: command not found
Using proper associative arrays to track prereqs, in addition to being
much cleaner than generating variable names and using grep to
carefully construct unique string lists, removes restrictions on
prereq names.
Previously, if a test script aborted (e.g., because it passed too few
arguments to a test function), the test driver loop would simply
continue on to the next test script and the final results would
declare that everything passed (except that the test count would look
suspiciously low, but maybe you just misremembered how many tests
there were).
Now, if a test script exits with a non-zero status and did not produce
a final results file, we propagate that failure out of the driver loop
immediately.
To keep this simple, this patch removes the PID from the test-results
file name. This PID was inherited from the git test system and seems
unnecessary, since the file name already includes the name of the test
script and the test-results directory is created anew for each run.
And require that if TEST_EMACS is specified, so is TEST_EMACSCLIENT.
Previously, the test framework always used "emacsclient", even if the
Emacs in use was overridden by TEST_EMACS. This causes problems if
both Emacs 23 and Emacs 24 are installed, the Emacs 23 emacsclient is
the system default, but TEST_EMACS is set to emacs24. Specifically,
with an Emacs 24 server and an Emacs 23 client, emacs tests that run
very quickly may produce no output from emacsclient, causing the test
to fail.
The Emacs server uses a very simple line-oriented protocol in which
the client sends a request to evaluate an expression and the server
sends a request to print the result of evaluation. Prior to Emacs bzr
commit 107565 on March 11th, 2012 (released in Emacs 24.1), if
multiple commands were sent to the emacsclient between when it sent
the evaluation command and when it entered its receive loop, it would
only process the first response command, ignoring the rest of the
received buffer. This wasn't a problem with the Emacs 23 server
because it sent only the command to print the evaluation result.
However, the Emacs 24 server first sends an unprompted command
specifying the PID of the Emacs server, then processes the evaluation
request, then sends the command to print the result. If the
evaluation is fast enough, it can send both of these commands before
emacsclient enters the receive loop. Hence, if an Emacs 24 server is
used with an Emacs 23 emacsclient, it may miss the response printing
command, ultimately causing intermittent notmuch test failures.
The use of --background option (instead of shell '&') ensures that
smtp-dummy is listening its server socket until execution of shell
script can continue, thus the client will always have socket where
to connect.
smtp-dummy outputs smtp_dummy_pid variable in shell assignment format;
eval'ing that output makes that variable available for the shell.
As the smtp-dummy instance is no longer child process of the script
the SIGKILL signal sent to it will ensure it is going away in case
the mail sender fails to connect to smtp-dummy.
Obviates the need to create a 'NOTMUCH_NEW' clone which runs
'notmuch new --debug'. This will be used in a later patch.
Doesn't cause any issues for other tests.
Since $TEST_DIRECTORY is an absolute path, any filenames generated
with it will be complete paths. Only use the basename to generate
suffixes for filenames.
Signed-off-by: Ethan Glasser-Camp <ethan@betacantrips.com>
Most Emacs tests end with a call to (test-output), which saves the
buffer to a filed called OUTPUT. Previously, if the test code failed
with an exception before this call, the test framework would then
compare against the OUTPUT file from the last Emacs test, resulting in
confusing diffs.
This requires one tweak to an emacs test that made two calls to
test_emacs and expected an OUTPUT file from the first call. We simply
reverse the order of the test_emacs calls.
Before the change, test_expect_equal_file() function treated the first
argument as "actual output file" and the second argument as "expected
output file". When the test fails, the files are copied for later
inspection. The first files was copied to "$testname.output" and the
second file to "$testname.expected". The argument order for
test_expect_equal_file() is often wrong which results in confusing
diff output and incorrectly named files.
The patch solves the issue by changing test_expect_equal_file() to
treat arguments just as two files, without any special properties
(like "actual" and "expected"). The file names for copying is now
based on the given file name: "$testname.$file1" and
"$testname.$file2". E.g. if test_expect_equal_file() is called with
"OUTPUT" and "EXPECTED", the copied files can be named
"emacs.1.OUTPUT" and "emacs.1.EXPECTED".
The down side of this approach is that diff argument order depends on
test_expect_equal_file() argument order. So sometimes we get diff
from expected to actual results, and sometimes the other way around.
But the files are always named correctly.
Previously, we used a variety of ad-hoc canonicalizations for JSON
output in the test suite, but were ultimately very sensitive to JSON
irrelevancies such as whitespace. This introduces a new test
comparison function, test_expect_equal_json, that first pretty-prints
*both* the actual and expected JSON and the compares the result.
The current implementation of this simply uses Python's json.tool to
perform pretty-printing (with a fallback to the identity function if
parsing fails). However, since the interface it introduces is
semantically high-level, we could swap in other mechanisms in the
future, such as another pretty-printer or something that does not
re-order object keys (if we decide that we care about that).
In general, this patch does not remove the existing ad-hoc
canonicalization because it does no harm. We do have to remove the
newline-after-comma rule from notmuch_json_show_sanitize and
filter_show_json because it results in invalid JSON that cannot be
pretty-printed.
Most of this patch simply replaces test_expect_equal and
test_expect_equal_file with test_expect_equal_json. It changes the
expected JSON in a few places where sanitizers had placed newlines
after commas inside strings.
Before the change, messages generated by generate_message() used "Test
message #N" for default subject where N is the generated messages
counter. Since message subject is commonly present in expected
results, there is a chance of breaking other tests when a new
generate_message() call is added. The patch changes default subject
value for generated messages to subtest name if it is available. If
subtest name is not available (i.e. message is generated during test
initialization), the old default value is used (in this case it is
fine to have the counter in the subject).
Another benefit of this change is a sane default value for subject in
generated messages, which would allow to simplify code like:
test_begin_subtest "test for a cool feature"
add_message [subject]="message for test for a cool feature"
Emails that are encoded differently than as ASCII or UTF-8 are not
indexed properly by notmuch. It is not possible to search for non-ASCII
words within those messages.
When tests are skipped due to missing prereqs, those prereqs are only
displayed when running with the `--verbose' option. This is essential
information when troubleshooting, so always send to stdout.
Add a new test function to allow simpler testing of emacs
functionality.
`test_emacs_expect_t' takes one argument - a lisp expression to
evaluate. The test passes if the expression returns `t', otherwise it
fails and the output is reported to the tester.
When checking for a running emacs, test_emacs evaluates the empty list
'()'. This returns 'nil' when emacs is running, which is then
prepended to the actual test result. Given that it is not part of the
actual test output the test harness can incorrectly report test
failure (or success).
