End to end test suite for Mosh sessions.
For original messy development history, see https://github.com/cgull/mosh/tree/localhost or https://github.com/cgull/mosh/commit/e7feed48a4a271e2977f714f58acfa04cdaa5cca
This commit is contained in:
John Hood
@@ -1,2 +1,5 @@
|
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/ocb-aes
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/encrypt-decrypt
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/*.d/
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*.log
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*.trs
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||||
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+20
-1
@@ -1,8 +1,22 @@
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EXTRA_DIST = \
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hold-stdin print-exitstatus \
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e2e-test e2e-test-server \
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$(displaytests)
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AM_CXXFLAGS = $(WARNING_CXXFLAGS) $(PICKY_CXXFLAGS) $(HARDEN_CFLAGS) $(MISC_CXXFLAGS)
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AM_LDFLAGS = $(HARDEN_LDFLAGS)
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displaytests = \
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e2e-success.test \
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e2e-failure.test \
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emulation-back-tab.test \
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unicode-later-combining.test
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check_PROGRAMS = ocb-aes encrypt-decrypt
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TESTS = ocb-aes encrypt-decrypt
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TESTS = ocb-aes encrypt-decrypt $(displaytests)
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XFAIL_TESTS = \
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e2e-failure.test \
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emulation-back-tab.test
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ocb_aes_SOURCES = ocb-aes.cc test_utils.cc test_utils.h
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ocb_aes_CPPFLAGS = -I$(srcdir)/../crypto -I$(srcdir)/../util
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@@ -11,3 +25,8 @@ ocb_aes_LDADD = ../crypto/libmoshcrypto.a ../util/libmoshutil.a $(OPENSSL_LIBS)
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encrypt_decrypt_SOURCES = encrypt-decrypt.cc test_utils.cc test_utils.h
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encrypt_decrypt_CPPFLAGS = -I$(srcdir)/../crypto -I$(srcdir)/../util
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encrypt_decrypt_LDADD = ../crypto/libmoshcrypto.a ../util/libmoshutil.a $(OPENSSL_LIBS)
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clean-local: clean-local-check
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.PHONY: clean-local-check
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clean-local-check:
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-for i in $(displaytests); do rm -rf $$i.d/; done
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@@ -0,0 +1,150 @@
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# Mosh Tests
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## ocb-aes
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This is a unit test for the OCB-AES encryption used in mosh, including
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Rogaway's OCB implementation and some of mosh's surrounding C++
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support code.
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## encrypt-decrypt
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This is a simple functional test of mosh's implementation of encrypted messages.
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## e2e-test
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This is a test framework for end-to-end testing of mosh. It uses tmux
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to invoke mosh in a nicely stable interactive pty, and also uses
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tmux's `capture-pane` command to get a dump of the terminal screen
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that mosh-client has drawn, neatly getting around Mosh's somewhat
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non-deterministic display redraw.
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There are three essential parts to the framework:
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* your test script
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* `e2e-test`
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* `e2e-test-server`
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The test script has two roles: when invoked without argments, it is a
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wrapper script for the overall test, and when invoked with an
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argument, it performs a testing-related action. In wrapper mode, it
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invokes e2e-test with action arguments, which are used to invoke the
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test script for actions at appropriate points by e2e-test. These
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provide a suite of behaviors that you can use to test various mosh
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behaviors.
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`e2e-test` is the heart of the framework. It runs actions as
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requested, logs their output, compares and/or validates their results,
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and generates the final result (exitstatus, mostly) for the Automake
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testing framework used by the mosh build. For test execution, it runs
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an action in an interactive session, in a tmux `screen`, to exercise
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some behavior. The action can optionally be run in a mosh session, or
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directly in tmux (doing both and comparing the result is a useful way
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to test complex terminal emulation behaviors). The action generally
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writes some output to the terminal that can later be verified by
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another action. Optionally, a client action can generate tty input or
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otherwise exercise mosh in some fashion (this capability is untested,
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but it's a useful place to use `expect` or other interactive
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simulations). The action is run by `e2e-test-server`, which is a
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relatively small wrapper script to capture errors, and capture the
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tmux screen.
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There are several different categories of actions:
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### Execution
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`baseline` is an action that almost all tests will use. This invokes
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the test script inside mosh, where it can generate some output, and
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then captures the client-side tmux display with `tmux capture-pane`.
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`direct` is the same as the above, except that mosh is not used--
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`e2e-wrapper-script` and the test script are invoked directly inside
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tmux.
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`variant` can be used to provide a slightly different action from
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`baseline`.
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||||
### Verification
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`verify` compares captures from the `baseline` and `direct` test
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actions, which are expected to be identical.
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`same` compares captures from the `baseline` and `variant` test
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actions, which are expected to be identical.
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`different` compares captures from the `baseline` and `variant` test
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actions, which are expected to be different.
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||||
`post` is a catchall script hook which allows custom verification
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acions to be coded.
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### Client wrapper
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`client` simply injects a wrapper command into the (long) test command
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between tmux and mosh. It's expected to interact with its wrapped
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command line as `expect` might do. This is not actually tested yet.
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## Logging and error reporting
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Each execution action is run, and recorded in
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`<testname>.test.d/<action>.*`. `<action>.exitstatus` is the
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exitstatus from the server wrapper. `<action>.tmux.log` is the output
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of tmux for the entire test run for that action; `<action>.capture` is
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a capture of the Mosh client screen after the test action is complete,
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generated with `tmux capture-pane`.
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In accordance with GNU Automake's test framework, the test should
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return these exit status values:
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* 0 test success
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* 1 test failure
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* 77 test skipped (tmux or ssh is unavailable if needed)
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* 99 hard error
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These values are also used internally between the various scripts;
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errors are conveyed out to the build test framework.
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## Sample tests
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A few tests have been implemented so far to test the framework itself,
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and to provide examples for further development.
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`e2e-success` is a simple test that executes `baseline` and `direct`
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with the same stimulus (simply clearing the screen), and expects to
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see identical results.
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||||
`e2e-failure` is similar `e2e-success`, but expects to see different
|
||||
results from `baseline` and `variant`. Since it uses the same
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||||
stimulus for the two execution action, it fails. A more realistic
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||||
test might be to have `variant` execute some escape sequence that is
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absent from `baseline`; this would verify that the escape sequence
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actually does something.
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||||
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||||
`emulation-back-tab` tests an escape sequence that mosh does not
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||||
support. It expects the test to produce the output that would be
|
||||
generated if the escape sequence were implemented. If it gets output
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||||
as expected when the escape sequence is *not* implemented, the test
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||||
fails. But if the output does not match one of these two cases, the
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||||
test returns an error. This is an example of error handling within
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the test framework.
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`unicode-later-combining` demonstrates mosh's handling of a Unicode
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edge case, a combining character drawn without a printing character in
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the same cell. It verifies the output in the `post` action; since
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||||
there are a couple of different Unicode renderings that are reasonable
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||||
in this case, a regex that covers both is used. It also implements an
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||||
unused `variant` action that draws blank-space+combiner in a correct
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fashion.
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||||
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## Notes
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||||
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||||
The shell command `printf` is generally used in place of
|
||||
`echo` in this framework, because of its more precisely-specified and
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||||
portable behavior. But beware, even `printf` varies between systems--
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||||
GNU printf, for example, implements `\e`, which is a non-POSIX
|
||||
extension unavailable in BSD implementations
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||||
It's fairly simple to test each of these scripts independently, but
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||||
the entire chain is a bit prone to behaving oddly in hard-to-debug
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||||
ways. `set -x` is your friend here.
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Executable
+33
@@ -0,0 +1,33 @@
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||||
#!/bin/sh
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||||
fail()
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||||
{
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||||
printf "$@" 2>&1
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exit 99
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||||
}
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||||
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||||
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||||
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||||
PATH=$PATH:.:$srcdir
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# Top-level wrapper.
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||||
if [ $# -eq 0 ]; then
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e2e-test $0 baseline variant different
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exit
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fi
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||||
# OK, we have arguments, we're one of the test hooks.
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if [ $# -ne 1 ]; then
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fail "bad arguments %s\n" "$@"
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fi
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baseline()
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||||
{
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||||
printf "\033[H\033[J"
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||||
}
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||||
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||||
case $1 in
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||||
baseline|variant)
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||||
baseline;;
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||||
*)
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||||
fail "unknown test argument %s\n" $1;;
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||||
esac
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||||
Executable
+33
@@ -0,0 +1,33 @@
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||||
#!/bin/sh
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||||
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||||
fail()
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||||
{
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||||
printf "$@" 2>&1
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exit 99
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||||
}
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||||
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||||
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||||
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||||
PATH=$PATH:.:$srcdir
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||||
# Top-level wrapper.
|
||||
if [ $# -eq 0 ]; then
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||||
e2e-test $0 baseline direct variant verify same
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||||
exit
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fi
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||||
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||||
# OK, we have arguments, we're one of the test hooks.
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||||
if [ $# -ne 1 ]; then
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||||
fail "bad arguments %s\n" "$@"
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||||
fi
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||||
|
||||
baseline()
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||||
{
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||||
printf "\033[H\033[J"
|
||||
}
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||||
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||||
case $1 in
|
||||
baseline|direct|variant)
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||||
baseline;;
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||||
*)
|
||||
fail "unknown test argument %s\n" $1;;
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||||
esac
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||||
Executable
+220
@@ -0,0 +1,220 @@
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||||
#!/bin/sh
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||||
#
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||||
# Validate that mosh produces expected output, using screen captures
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# in tmux.
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||||
#
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||||
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||||
log()
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||||
{
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||||
printf "$@"
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||||
}
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||||
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||||
error()
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||||
{
|
||||
printf "$@" >&2
|
||||
}
|
||||
|
||||
dump_logs()
|
||||
{
|
||||
local dir
|
||||
local testname
|
||||
dir=$1
|
||||
shift
|
||||
testname=$(basename $dir .d)
|
||||
for logfile in $dir/*.tmux.log; do
|
||||
printf "travis_fold:start:%s-%s\n" $testname $(basename $logfile)
|
||||
cat $logfile
|
||||
printf "travis_fold:end:%s-%s\n" $testname $(basename $logfile)
|
||||
done
|
||||
}
|
||||
|
||||
test_success()
|
||||
{
|
||||
exit 0
|
||||
}
|
||||
test_failure()
|
||||
{
|
||||
error "$@"
|
||||
exit 1
|
||||
}
|
||||
test_skipped()
|
||||
{
|
||||
error "$@"
|
||||
exit 77
|
||||
}
|
||||
test_error()
|
||||
{
|
||||
error "$@"
|
||||
exit 99
|
||||
}
|
||||
test_exitstatus()
|
||||
{
|
||||
status=$1
|
||||
shift
|
||||
error "$@"
|
||||
exit $status
|
||||
}
|
||||
|
||||
|
||||
# Tmux check.
|
||||
tmux_check()
|
||||
{
|
||||
local version version_major version_minor
|
||||
version=$(tmux -V)
|
||||
if [ $? != 0 ]; then
|
||||
error "tmux unavailable\n"
|
||||
return 1
|
||||
fi
|
||||
version=${version##tmux }
|
||||
version_major=${version%%.*}
|
||||
version_minor=${version##*.}
|
||||
# need version 1.8 for capture-pane
|
||||
if [ $version_major -lt 1 ] ||
|
||||
[ $version_major -eq 1 -a $version_minor -lt 8 ]; then
|
||||
error "tmux version %s too old\n" "$version"
|
||||
return 1
|
||||
fi
|
||||
return 0
|
||||
}
|
||||
|
||||
ssh_localhost_check()
|
||||
{
|
||||
ssh localhost :
|
||||
if [ $? -ne 0 ]; then
|
||||
error "ssh to localhost failed\n"
|
||||
return 1
|
||||
fi
|
||||
return 0
|
||||
}
|
||||
|
||||
# main
|
||||
|
||||
# Set up environment
|
||||
if [ -z "$srcdir" ]; then
|
||||
: ${srcdir:=$PWD}
|
||||
else
|
||||
srcdir="$(cd $srcdir && pwd)"
|
||||
if [ $? -ne 0 ]; then
|
||||
error "can't cd to srcdir: %s\n" "$srcdir"
|
||||
exit 99
|
||||
fi
|
||||
fi
|
||||
|
||||
if ! tmux_check; then
|
||||
test_skipped "tmux unavailable\n"
|
||||
fi
|
||||
|
||||
if [ $# -lt 2 ]; then
|
||||
test_error "not enough args\n"
|
||||
fi
|
||||
|
||||
# Get arguments (only one so far)
|
||||
test_name=$1
|
||||
shift
|
||||
test_args=$@
|
||||
# XXX could use AM testsubdir macro instead
|
||||
test_dir=$(basename ${test_name}).d
|
||||
test_script="${test_name}"
|
||||
rm -rf "${test_dir}"
|
||||
mkdir "${test_dir}"
|
||||
|
||||
|
||||
if [ "x$AM_TESTS_REDIRECT" != "x" ]; then
|
||||
RENDER_REDIRECT=">&9"
|
||||
exec 2>&9
|
||||
fi
|
||||
trap 'rv=$?; if test $rv -ne 0; then dump_logs '"$test_dir $test_args $RENDER_REDIRECT"'; fi; exit $rv' EXIT
|
||||
|
||||
# Set up tests to run.
|
||||
server_tests=
|
||||
compare_tests=
|
||||
for i in $test_args; do
|
||||
case $i in
|
||||
baseline|direct|variant)
|
||||
server_tests="$server_tests $i";;
|
||||
verify|same|different)
|
||||
compare_tests="$compare_tests $i";;
|
||||
client)
|
||||
client=1;;
|
||||
post)
|
||||
post=1;;
|
||||
*)
|
||||
error "unknown test type argument %s", $i
|
||||
exit 99
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
# Run test(s).
|
||||
client_wrapper=
|
||||
if [ -n "$client" ]; then
|
||||
client_wrapper="${test_script} client"
|
||||
fi
|
||||
|
||||
for run in $server_tests; do
|
||||
log "Running server test %s.\n" "$run"
|
||||
# XXX need to quote special chars in server pathname here somehow
|
||||
sut="../../scripts/mosh --client=../frontend/mosh-client --server=$PWD/../frontend/mosh-server --local --bind-server=127.0.0.1 127.0.0.1"
|
||||
testarg=$run
|
||||
if [ "$run" = "direct" ]; then
|
||||
sut=""
|
||||
fi
|
||||
# Actually execute code under test
|
||||
# XXX tmux 1.8 requires shell command as a single arg; once we move to 2.0, undo these quotes
|
||||
# XXX this ignores $TMPDIR, because it results in an overlong pathname on OS X
|
||||
if ! ${srcdir}/hold-stdin tmux -S "/tmp/.tmux-mosh-test-$$" -C new-session "${srcdir}/print-exitstatus ${client_wrapper} ${sut} \"${srcdir}/e2e-test-server\" \"${PWD}/${test_dir}/${run}\" \"${PWD}/${test_script} ${testarg}\"" > "${test_dir}/${run}.tmux.log"; then
|
||||
test_error "tmux failure on test %s\n" "$run"
|
||||
fi
|
||||
# Check for mosh failures
|
||||
if ! grep -q "%%% exitstatus: 0 %%%" "${test_dir}/${run}.tmux.log"; then
|
||||
test_error "mosh-client had non-zero exitstatus\n"
|
||||
fi
|
||||
|
||||
# Check for server harness failures
|
||||
if [ ! -s "${test_dir}/${run}.capture" ] \
|
||||
|| [ ! -s "${test_dir}/${run}.exitstatus" ]; then
|
||||
test_error "server harness failure on test %s\n" "$run"
|
||||
fi
|
||||
read server_rv < "${test_dir}/${run}.exitstatus"
|
||||
if [ "$server_rv" -ne 0 ]; then
|
||||
test_error "server harness exited with status %s\n" "$server_rv"
|
||||
fi
|
||||
|
||||
done
|
||||
|
||||
for compare in $compare_tests; do
|
||||
log "Running server comparison %s.\n" "$compare"
|
||||
# Compare captures
|
||||
if [ "$compare" = verify ]; then
|
||||
test1="direct"
|
||||
test2="baseline"
|
||||
else
|
||||
test1="baseline"
|
||||
test2="variant"
|
||||
fi
|
||||
if diff -q "${test_dir}/${test1}.capture" "${test_dir}/${test2}.capture"; then
|
||||
differ=n
|
||||
else
|
||||
differ=y
|
||||
fi
|
||||
if [ "$compare" = different ]; then
|
||||
desired=y
|
||||
badresult=same
|
||||
else
|
||||
desired=n
|
||||
badresult=different
|
||||
fi
|
||||
if [ $differ != $desired ]; then
|
||||
test_failure "Output is %s between tests %s and %s\n" "$badresult" "$test1" "$test2"
|
||||
fi
|
||||
done
|
||||
|
||||
# Run a post script (usually a custom validation of results)
|
||||
if [ -n "$post" ]; then
|
||||
"${test_script}" post
|
||||
status=$?
|
||||
if [ $status -ne 0 ]; then
|
||||
test_exitstatus $status "Post test failed with exitstatus %d\n" $status
|
||||
fi
|
||||
fi
|
||||
Executable
+39
@@ -0,0 +1,39 @@
|
||||
#!/bin/sh
|
||||
|
||||
#
|
||||
# Harness script for Mosh tests, server side. Runs test script and
|
||||
# then captures screen with `tmux capture-pane`. Captures exitstatus
|
||||
# of both and returns appropriate errors.
|
||||
#
|
||||
if [ $# -lt 2 ]; then
|
||||
printf "not enough args\n" >&2
|
||||
exit 99
|
||||
fi
|
||||
testname=$1
|
||||
shift
|
||||
rm -f $testname.capture $testname.exitstatus
|
||||
trap 'rv=$?; echo $rv > $testname.exitstatus; exit $rv' EXIT
|
||||
# check for tmux
|
||||
if [ -z "$TMUX_PANE" ]; then
|
||||
printf "not running under tmux\n" >&2
|
||||
exit 99
|
||||
fi
|
||||
# run harnessed command
|
||||
eval "$@"
|
||||
testret=$?
|
||||
# Wait a bit for tmux screen to become up to date.
|
||||
sleep 1
|
||||
# capture screen
|
||||
if ! tmux capture-pane -et $TMUX_PANE; then
|
||||
printf "tmux capture-pane failed, erroring test\n" >&2
|
||||
exit 99
|
||||
fi
|
||||
if ! tmux save-buffer $testname.capture; then
|
||||
printf "tmux save-buffer failed, erroring test\n" >&2
|
||||
exit 99
|
||||
fi
|
||||
# return useful exitstatus from harnessed command
|
||||
if [ $testret -ne 0 ]; then
|
||||
exit 1
|
||||
fi
|
||||
exit 0
|
||||
Executable
+50
@@ -0,0 +1,50 @@
|
||||
#!/bin/sh
|
||||
|
||||
#
|
||||
# This test is for issue 539 on github.
|
||||
#
|
||||
|
||||
fail()
|
||||
{
|
||||
printf "$@" 2>&1
|
||||
exit 99
|
||||
}
|
||||
|
||||
|
||||
|
||||
PATH=$PATH:.:$srcdir
|
||||
# Top-level wrapper.
|
||||
if [ $# -eq 0 ]; then
|
||||
e2e-test $0 baseline post
|
||||
exit
|
||||
fi
|
||||
|
||||
# OK, we have arguments, we're one of the test hooks.
|
||||
if [ $# -ne 1 ]; then
|
||||
fail "bad arguments %s\n" "$@"
|
||||
fi
|
||||
|
||||
baseline()
|
||||
{
|
||||
printf 'hello, wurld\033[Zo\n'
|
||||
}
|
||||
|
||||
post()
|
||||
{
|
||||
if grep -q 'hello, world' $(basename $0).d/baseline.capture; then
|
||||
exit 0
|
||||
fi
|
||||
if grep -q 'hello, wurldo' $(basename $0).d/baseline.capture; then
|
||||
exit 1
|
||||
fi
|
||||
exit 99
|
||||
}
|
||||
|
||||
case $1 in
|
||||
baseline)
|
||||
baseline;;
|
||||
post)
|
||||
post;;
|
||||
*)
|
||||
fail "unknown test argument %s\n" $1;;
|
||||
esac
|
||||
Executable
+21
@@ -0,0 +1,21 @@
|
||||
#!/usr/bin/env perl
|
||||
|
||||
#
|
||||
# The sole function of this script is to provide a stdin that doesn't
|
||||
# read data or return EOF to its children. If there's a clean,
|
||||
# portable, not-Perl way to do this, then that should replace this.
|
||||
#
|
||||
use warnings;
|
||||
use strict;
|
||||
|
||||
my $pid = open(my $fh, "|-", @ARGV) or die;
|
||||
waitpid($pid, 0) == $pid or die;
|
||||
my $rc;
|
||||
if ($? == 0) {
|
||||
$rc = 0;
|
||||
} elsif ($? >= 256) {
|
||||
$rc = $? >> 8;
|
||||
} else {
|
||||
$rc = ($? & 127) | 128;
|
||||
}
|
||||
exit $rc;
|
||||
Executable
+21
@@ -0,0 +1,21 @@
|
||||
#!/usr/bin/env perl
|
||||
|
||||
#
|
||||
# Print exitstatus on stderr.
|
||||
#
|
||||
use warnings;
|
||||
use strict;
|
||||
|
||||
my $rc = system(@ARGV);
|
||||
if ($? == -1) {
|
||||
die "system failed: %!\n";
|
||||
}
|
||||
if ($? == 0) {
|
||||
$rc = 0;
|
||||
} elsif ($? >= 256) {
|
||||
$rc = $? >> 8;
|
||||
} else {
|
||||
$rc = ($? & 127) | 128;
|
||||
}
|
||||
print STDERR "%%% exitstatus: ${rc} %%%\n";
|
||||
exit $rc;
|
||||
Executable
+61
@@ -0,0 +1,61 @@
|
||||
#!/bin/sh
|
||||
|
||||
#
|
||||
# This test is for the first Unicode issue described on the Mosh web
|
||||
# page, a combining character drawn on a cell after returning the
|
||||
# cursor to that cell.
|
||||
#
|
||||
# XXX This test is fragile because it depends on tmux's unicode rendering.
|
||||
# The baseline and variant tests produce different (but valid) outputs
|
||||
# that are visually identical. The variant test is not run or validated.
|
||||
#
|
||||
|
||||
fail()
|
||||
{
|
||||
printf "$@" 2>&1
|
||||
exit 99
|
||||
}
|
||||
|
||||
|
||||
|
||||
PATH=$PATH:.:$srcdir
|
||||
# Top-level wrapper.
|
||||
if [ $# -eq 0 ]; then
|
||||
e2e-test $0 baseline post
|
||||
exit
|
||||
fi
|
||||
|
||||
# OK, we have arguments, we're one of the test hooks.
|
||||
if [ $# -ne 1 ]; then
|
||||
fail "bad arguments %s\n" "$@"
|
||||
fi
|
||||
|
||||
baseline()
|
||||
{
|
||||
printf 'abc\n\314\202\ndef\n'
|
||||
}
|
||||
|
||||
variant()
|
||||
{
|
||||
printf 'abc\n \314\202\ndef\n'
|
||||
}
|
||||
|
||||
post()
|
||||
{
|
||||
export LANG=C
|
||||
if grep -q "$(printf '^\302\240\314\202$')" $(basename $0).d/baseline.capture; then
|
||||
exit 0
|
||||
fi
|
||||
exit 1
|
||||
}
|
||||
|
||||
case $1 in
|
||||
baseline)
|
||||
baseline;;
|
||||
variant)
|
||||
variant;;
|
||||
post)
|
||||
post;;
|
||||
*)
|
||||
fail "unknown test argument %s\n" $1;;
|
||||
esac
|
||||
Reference in New Issue
Block a user