docs: move test docs from examples/README to test/README

This commit is contained in:
Erik Arvstedt 2023-01-15 20:27:50 +01:00 committed by Greg Shuflin
parent 1e21feb257
commit 740dd666ad
3 changed files with 86 additions and 55 deletions

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```
### Tests
The internal test suite is also useful for exploring features.\
The following `run-tests.sh` commands leave no traces (outside of `/nix/store`) on
the host system.
`run-tests.sh` requires Nix >= 2.10.
```bash
git clone https://github.com/fort-nix/nix-bitcoin
cd nix-bitcoin/test
# Run a node in a VM. No tests are executed.
./run-tests.sh vm
systemctl status bitcoind
# Run a Python test shell inside a VM node
./run-tests.sh debug
print(succeed("systemctl status bitcoind"))
run_test("bitcoind")
# Run a node in a container. Requires systemd and root privileges.
./run-tests.sh container
c systemctl status bitcoind
# Explore a single feature
./run-tests.sh --scenario electrs container
# Run a command in a container
./run-tests.sh --scenario '{
services.clightning.enable = true;
nix-bitcoin.nodeinfo.enable = true;
}' container --run c nodeinfo
```
See [`run-tests.sh`](../test/run-tests.sh) for a complete documentation.
#### Flakes
Tests can also be directly accessed via Flakes:
```bash
# Build test
nix build --no-link ..#tests.default
# Run a node in a VM. No tests are executed.
nix run ..#tests.default.vm
# Run a Python test shell inside a VM node
nix run ..#tests.default.run -- --debug
# Run a node in a container. Requires extra-container, systemd and root privileges
nix run ..#tests.default.container
nix run ..#tests.default.containerLegacy # For NixOS with `system.stateVersion` <22.05
# Run a command in a container
nix run ..#tests.default.container -- --run c nodeinfo
nix run ..#tests.default.containerLegacy -- --run c nodeinfo # For NixOS with `system.stateVersion` <22.05
```
The [nix-bitcoin test suite](../test/README.md) is also useful for exploring features.
### Real-world example
Check the [server repo](https://github.com/fort-nix/nixbitcoin.org) for https://nixbitcoin.org

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test/README.md Normal file
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The [`run-tests.sh`](./run-tests.sh) command is most convenient and versatile way to run tests.\
It leave no traces (outside of `/nix/store`) on the host system.
`run-tests.sh` requires Nix >= 2.10.
### Summary
```bash
./run-tests.sh [--scenario|-s <scenario>] [build|vm|debug|container]
```
See the top of [run-tests.sh](../test/run-tests.sh) for a complete documentation.\
Test scenarios are defined in [tests.nix](./tests.nix) and [tests.py](tests.py).
### Tutorial
#### Running tests
```bash
# Run the basic set of tests. These tests are also run on the GitHub CI server.
./run-tests.sh
# Run the test for scenario `regtest`.
# The test is run via the Nix build system. Successful runs are cached.
./run-tests.sh -s regtest build
./run-tests.sh -s regtest # Shorthand, equivalent
# To test a single service, use its name as a scenario.
./run-tests.sh -s clightning
# When no scenario is specified, scenario `default` is used.
./run-tests.sh build
```
#### Debugging
```bash
# Start a shell is inside a test VM. No tests are executed.
./run-tests.sh -s bitcoind vm
systemctl status bitcoind
# Run a Python NixOS test shell inside a VM.
# See https://nixos.org/manual/nixos/stable/#ssec-machine-objects for available commands.
./run-tests.sh debug
print(succeed("systemctl status bitcoind"))
run_test("bitcoind")
# Start a shell in a container node. Requires systemd and root privileges.
./run-tests.sh container
# In the container shell: Run command in container (with prefix `c`)
c systemctl status bitcoind
# Explore a single feature
./run-tests.sh -s electrs container
# Run a command in a container.
# The container is deleted afterwards.
./run-tests.sh -s clightning container --run c lightning-cli getinfo
# Define a custom scenario
./run-tests.sh --scenario '{
services.clightning.enable = true;
nix-bitcoin.nodeinfo.enable = true;
}' container --run c nodeinfo
```
# Running tests with Flakes
Tests can also be accessed via the nix-bitcoin flake:
```bash
# Build test
nix build --no-link ..#tests.default
# Run a node in a VM. No tests are executed.
nix run ..#tests.default.vm
# Run a Python test shell inside a VM node
nix run ..#tests.default.run -- --debug
# Run a node in a container. Requires extra-container, systemd and root privileges
nix run ..#tests.default.container
nix run ..#tests.default.containerLegacy # For NixOS with `system.stateVersion` <22.05
# Run a command in a container
nix run ..#tests.default.container -- --run c nodeinfo
nix run ..#tests.default.containerLegacy -- --run c nodeinfo # For NixOS with `system.stateVersion` <22.05
```

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# The tests (defined in ./tests.nix) use the NixOS testing framework and are executed in a VM.
#
# Usage:
# Run all tests
# Run the basic set of tests. These are also run on the CI server.
# ./run-tests.sh
#
# Test specific scenario