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76 lines
3.1 KiB
Markdown
76 lines
3.1 KiB
Markdown
---
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title: SyTest
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parent: Development
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nav_order: 2
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permalink: /development/sytest
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---
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# SyTest
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Dendrite uses [SyTest](https://github.com/matrix-org/sytest) for its
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integration testing. When creating a new PR, add the test IDs (see below) that
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your PR should allow to pass to `sytest-whitelist` in dendrite's root
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directory. Not all PRs need to make new tests pass. If we find your PR should
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be making a test pass we may ask you to add to that file, as generally
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Dendrite's progress can be tracked through the amount of SyTest tests it
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passes.
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## Finding out which tests to add
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We recommend you run the tests locally by using the SyTest docker image.
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After running the tests, a script will print the tests you need to add to
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`sytest-whitelist`.
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You should proceed after you see no build problems for dendrite after running:
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```sh
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go build -o bin/ ./cmd/...
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```
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If you are fixing an issue marked with
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[Are We Synapse Yet](https://github.com/matrix-org/dendrite/labels/are-we-synapse-yet)
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then there will be a list of Sytests that you should add to the whitelist when you
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have fixed that issue. This MUST be included in your PR to ensure that the issue
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is fully resolved.
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### Using the SyTest Docker image
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**We strongly recommend using the Docker image to run Sytest.**
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Use the following commands to pull the latest SyTest image and run the tests:
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```sh
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docker pull matrixdotorg/sytest-dendrite
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docker run --rm -v /path/to/dendrite/:/src/ -v /path/to/log/output/:/logs/ matrixdotorg/sytest-dendrite
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```
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`/path/to/dendrite/` should be replaced with the actual path to your dendrite
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source code. The test results TAP file and homeserver logging output will go to
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`/path/to/log/output`. The output of the command should tell you if you need to
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add any tests to `sytest-whitelist`.
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When debugging, the following Docker `run` options may also be useful:
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* `-v /path/to/sytest/:/sytest/`: Use your local SyTest repository at
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`/path/to/sytest` instead of pulling from GitHub. This is useful when you want
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to speed things up or make modifications to SyTest.
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* `-v "/path/to/gopath/:/gopath"`: Use your local `GOPATH` so you don't need to
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re-download packages on every run.
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* `--entrypoint bash`: Prevent the container from automatically starting the
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tests. When used, you need to manually run `/bootstrap.sh dendrite` inside
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the container to start them.
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* `-e "DENDRITE_TRACE_HTTP=1"`: Adds HTTP tracing to server logs.
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* `-e "DENDRITE_TRACE_INTERNAL=1"`: Adds roomserver internal API tracing to
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server logs.
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* `-e "COVER=1"`: Run Sytest with an instrumented binary, producing a Go coverage file per server.
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* `-e "RACE_DETECTION=1"`: Build the binaries with the `-race` flag (Note: This will significantly slow down test runs)
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The docker command also supports a single positional argument for the test file to
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run, so you can run a single `.pl` file rather than the whole test suite. For example:
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```
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docker run --rm --name sytest -v "/Users/kegan/github/sytest:/sytest"
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-v "/Users/kegan/github/dendrite:/src" -v "/Users/kegan/logs:/logs"
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-v "/Users/kegan/go/:/gopath" -e "POSTGRES=1" -e "DENDRITE_TRACE_HTTP=1"
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matrixdotorg/sytest-dendrite:latest tests/50federation/40devicelists.pl
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```
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