From b1f5688495665269fb17732a3c7fb91c709e61b6 Mon Sep 17 00:00:00 2001 From: Stefano Brivio Date: Wed, 26 Jan 2022 16:22:16 +0100 Subject: [PATCH] test: Add basic documentation about test suite, and cool-retro-term profile Signed-off-by: Stefano Brivio --- test/README.md | 104 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 test/README.md diff --git a/test/README.md b/test/README.md new file mode 100644 index 0000000..647100f --- /dev/null +++ b/test/README.md @@ -0,0 +1,104 @@ + + +# Scope + +This directory contains test cases for _passt_ and _pasta_ and a simple +POSIX shell-based framework to define them, and run them as a suite. + +These tests can be run as part of a continuous integration workflow, and are +also used to provide short usage demos, with video recording, for _passt_ and +_pasta_ basic use cases. + +# Run + +## Dependencies + +### Packages + +The tests require some package dependencies commonly available in Linux +distributions. If some packages are not available, the test groups that need +them will be selectively skipped. + +This is a non-exhaustive list of packages that might not commonly be installed +on a system, i.e. common utilities such as a shell are not included here. + +Example for Debian, and possibly most Debian-based distributions: + + build-essential git jq strace iperf3 qemu-system-x86 tmux sipcalc bc + clang-tidy cppcheck isc-dhcp-common udhcpc psmisc linux-cpupower + netcat-openbsd fakeroot lz4 lm-sensors qemu-system-arm qemu-system-ppc + qemu-system-misc qemu-system-x86` + +### Other tools + +Test measuring request-response and connect-request-response latencies use +`neper`, which is not commonly packaged by distributions and needs to be built +and installed manually: + + git clone https://github.com/google/neper + cd neper; make + cp tcp_crr tcp_rr udp_rr /usr/local/bin + +Virtual machine images are built during test executions using +[mbuto](https://mbuto.lameexcu.se/), the shell script is sourced via _git_ +as needed, so there's no need to actually install it. + +### Special requirements for continuous integration and demo modes + +Running the test suite as continuous integration or demo modes will record a +video of the steps being executed, and create binary packages. The demo mode +uses _cool-retro-term_ as terminal, whereas the continuous integration mode uses +_MATE Terminal_ by default. + +The following additional packages are commonly needed as well: + + dbus-x11 xdotool x11-utils xvfb ffmpeg mate-terminal cool-retro-term xauth + dconf-cli alien linux-perf tshark sqlite3` + +For convenience, suitable profiles for _MATE Terminal_ and _cool-retro-term_ are +provided under the `env` directory. To source them: + + dconf load /org/mate/terminal/profiles/ < env/mate-terminal.profile + cp env/cool_retro_term.sqlite ~/.local/share/cool-retro-term/QML/OfflineStorage/Databases/*.sqlite + +## Regular test + +Just issue: + + ./run + +from the `test` directory. Elevated privileges are not needed. + +## Continuous integration + +Issuing: + + ./ci + +will run the whole test suite while recording a video of the execution, and it +will also build JavaScript fragments used on http://passt.top/ for performance +data tables and links to specific video offsets. + +## Demo mode + +Issuing: + + ./demo + +will run the demo cases under `demo`, recording videos as well. + +# Framework + +The implementation of the testing framework is under `lib`, and it provides +facilities for terminal and _tmux_ session management, interpretation of test +directives, video recording, and suchlike. Test cases are organised in the +remaining directories. + +Test cases can be implemented as POSIX shell scripts, or as a set of directives, +which are not formally documented here, but should be clear enough from the +existing cases. The entry point for interpretation of test directives is +implemented in `lib/test`.