265 lines
7.5 KiB
Bash
Executable File
265 lines
7.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Modules integration test runner.
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# The tests (defined in ./tests.nix) use the NixOS testing framework and are executed in a VM.
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#
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# Usage:
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# Run all tests
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# ./run-tests.sh
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#
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# Test specific scenario
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# ./run-tests.sh --scenario|-s <scenario>
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#
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# - When <scenario> contains a space, <scenario> is treated as nix code defining
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# a scenario. It is evaluated in the same context as other scenarios in ./tests.nix
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#
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# Example:
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# ./run-tests.sh -s "{ nix-bitcoin.nodeinfo.enable = true; }" container --run c nodeinfo
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#
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# - When <scenario> does not name a scenario, the test is run with an adhoc scenario
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# where services.<scenario> is enabled.
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#
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# Example:
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# ./run-tests.sh -s electrs
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#
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# Run test(s) and link results to avoid garbage collection
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# ./run-tests.sh [--scenario <scenario>] --out-link-prefix /tmp/nix-bitcoin-test
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#
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# Pass extra args to nix-build
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# ./run-tests.sh build --builders 'ssh://mybuildhost - - 15'
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#
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# Run interactive test debugging
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# ./run-tests.sh [--scenario <scenario>] debug
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#
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# This starts the testing VM and drops you into a Python REPL where you can
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# manually execute the tests from ./tests.py
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#
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# Run a test scenario in a container
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# sudo ./run-tests.sh [--scenario <scenario>] container
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#
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# This is useful for quick experiments; containers start much faster than VMs.
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# Running the Python test suite in containers is not yet supported.
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# For now, creating NixOS containers requires root permissions.
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# See ./lib/make-container.sh for a complete documentation.
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#
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# To add custom scenarios, set the environment variable `scenarioOverridesFile`.
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set -eo pipefail
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scriptDir=$(cd "${BASH_SOURCE[0]%/*}" && pwd)
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scenario=
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outLinkPrefix=
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ciBuild=
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while :; do
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case $1 in
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--scenario|-s)
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if [[ $2 ]]; then
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scenario=$2
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shift
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shift
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else
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>&2 echo "Error: $1 requires an argument."
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exit 1
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fi
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;;
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--out-link-prefix|-o)
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if [[ $2 ]]; then
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outLinkPrefix=$2
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shift
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shift
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else
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>&2 echo "Error: $1 requires an argument."
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exit 1
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fi
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;;
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--ci)
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shift
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ciBuild=1
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;;
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*)
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break
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esac
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done
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numCPUs=${numCPUs:-$(nproc)}
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# Min. 800 MiB needed to avoid 'out of memory' errors
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memoryMiB=${memoryMiB:-2048}
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export NIX_PATH=nixpkgs=$(nix eval --raw -f "$scriptDir/../pkgs/nixpkgs-pinned.nix" nixpkgs):nix-bitcoin=$(realpath "$scriptDir/..")
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runAtExit=
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trap 'eval "$runAtExit"' EXIT
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# Support explicit scenario definitions
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if [[ $scenario = *' '* ]]; then
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export scenarioOverridesFile=$(mktemp ${XDG_RUNTIME_DIR:-/tmp}/nb-scenario.XXX)
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runAtExit+='rm -f "$scenarioOverridesFile";'
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echo "{ testEnv, config, pkgs, lib }: with testEnv; with lib; { tmp = $scenario; }" > "$scenarioOverridesFile"
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scenario=tmp
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fi
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# Run the test. No temporary files are left on the host system.
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run() {
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# TMPDIR is also used by the test driver for VM tmp files
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export TMPDIR=$(mktemp -d /tmp/nix-bitcoin-test.XXX)
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runAtExit+="rm -rf $TMPDIR;"
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nix-build --out-link $TMPDIR/driver -E "(import \"$scriptDir/tests.nix\" { scenario = \"$scenario\"; }).vm" -A driver
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# Variable 'tests' contains the Python code that is executed by the driver on startup
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if [[ $1 == --interactive ]]; then
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echo "Running interactive testing environment"
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tests=$(
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echo 'is_interactive = True'
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echo 'exec(os.environ["testScript"])'
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# Start VM
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echo 'start_all()'
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# Start REPL
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echo 'import code'
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echo 'code.interact(local=globals())'
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)
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else
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tests='exec(os.environ["testScript"])'
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fi
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echo "VM stats: CPUs: $numCPUs, memory: $memoryMiB MiB"
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[[ $NB_TEST_ENABLE_NETWORK ]] || QEMU_NET_OPTS='restrict=on'
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cd $TMPDIR # The VM creates a VDE control socket in $PWD
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env -i \
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NIX_PATH="$NIX_PATH" \
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TMPDIR="$TMPDIR" \
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USE_TMPDIR=1 \
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NIX_DISK_IMAGE=$TMPDIR/img.qcow2 \
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tests="$tests" \
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QEMU_OPTS="-smp $numCPUs -m $memoryMiB -nographic $QEMU_OPTS" \
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QEMU_NET_OPTS="$QEMU_NET_OPTS" \
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$TMPDIR/driver/bin/nixos-test-driver
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}
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debug() {
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run --interactive
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}
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evalTest() {
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nix eval --raw "($(vmTestNixExpr)).outPath"
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echo # nix eval doesn't print a newline
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}
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instantiate() {
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nix-instantiate -E "$(vmTestNixExpr)" "$@"
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}
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container() {
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export scriptDir scenario
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"$scriptDir/lib/make-container.sh" "$@"
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}
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doBuild() {
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name=$1
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shift
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if [[ $ciBuild ]]; then
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"$scriptDir/../ci/build-to-cachix.sh" "$@"
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else
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if [[ $outLinkPrefix ]]; then
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outLink="--out-link $outLinkPrefix-$name"
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else
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outLink=--no-out-link
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fi
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nix-build $outLink "$@"
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fi
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}
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# Run the test by building the test derivation
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buildTest() {
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vmTestNixExpr | doBuild $scenario $outLinkArg "$@" -
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}
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vmTestNixExpr() {
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extraQEMUOpts=
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if [[ $ciBuild ]]; then
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# On continuous integration nodes there are few other processes running alongside the
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# test, so use more memory here for maximum performance.
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memoryMiB=4096
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memTotalKiB=$(awk '/MemTotal/ { print $2 }' /proc/meminfo)
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memAvailableKiB=$(awk '/MemAvailable/ { print $2 }' /proc/meminfo)
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# Round down to nearest multiple of 50 MiB for improved test build caching
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((memAvailableMiB = memAvailableKiB / (1024 * 50) * 50))
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((memAvailableMiB < memoryMiB)) && memoryMiB=$memAvailableMiB
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>&2 echo "VM stats: CPUs: $numCPUs, memory: $memoryMiB MiB"
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>&2 echo "Host memory total: $((memTotalKiB / 1024)) MiB, available: $memAvailableMiB MiB"
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# VMX is usually not available on CI nodes due to recursive virtualisation.
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# Explicitly disable VMX, otherwise QEMU 4.20 fails with message
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# "error: failed to set MSR 0x48b to 0x159ff00000000"
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extraQEMUOpts="-cpu host,-vmx"
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fi
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cat <<EOF
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((import "$scriptDir/tests.nix" { scenario = "$scenario"; }).vm {}).overrideAttrs (old: rec {
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buildCommand = ''
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export QEMU_OPTS="-smp $numCPUs -m $memoryMiB $extraQEMUOpts"
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echo "VM stats: CPUs: $numCPUs, memory: $memoryMiB MiB"
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'' + old.buildCommand;
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})
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EOF
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}
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pkgsUnstable() {
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doBuild pkgs-unstable "$scriptDir/pkgs-unstable.nix"
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}
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# A basic subset of tests to keep the total runtime within
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# manageable bounds (<4 min on desktop systems).
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# These are also run on the CI server.
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basic() {
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scenario=default buildTest "$@"
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scenario=netns buildTest "$@"
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scenario=netnsRegtest buildTest "$@"
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pkgsUnstable
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}
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# All tests that only consist of building a nix derivation.
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# Their output is cached in /nix/store.
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buildable() {
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basic
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scenario=full buildTest "$@"
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scenario=regtest buildTest "$@"
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scenario=hardened buildTest "$@"
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}
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examples() {
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script="
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set -e
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./deploy-container.sh
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./deploy-qemu-vm.sh
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"
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(cd $scriptDir/../examples && nix-shell --run "$script")
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}
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all() {
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buildable
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examples
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}
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# An alias for buildTest
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build() {
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buildTest "$@"
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}
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if [[ $# > 0 && $1 != -* ]]; then
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# An explicit command was provided
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command=$1
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shift
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if [[ $command == eval ]]; then
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command=evalTest
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fi
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: ${scenario:=default}
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elif [[ $scenario ]]; then
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command=buildTest
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else
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command=basic
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fi
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$command "$@"
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