docs: add documentation

This commit is contained in:
technofab 2025-06-02 13:34:59 +02:00
parent c2ca17dfc5
commit fd58344ca7
9 changed files with 302 additions and 8 deletions

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README.md Normal file
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# Nixtest
[![built with nix](https://img.shields.io/static/v1?logo=nixos&logoColor=white&label=&message=Built%20with%20Nix&color=41439a)](https://builtwithnix.org)
[![pipeline status](https://gitlab.com/TECHNOFAB/nixtest/badges/main/pipeline.svg)](https://gitlab.com/TECHNOFAB/nixtest/-/commits/main)
![License: MIT](https://img.shields.io/gitlab/license/technofab/nix-gitlab-ci)
[![Latest Release](https://gitlab.com/TECHNOFAB/nixtest/-/badges/release.svg)](https://gitlab.com/TECHNOFAB/nixtest/-/releases)
[![Support me](https://img.shields.io/badge/Support-me-green)](https://tec.tf/#support)
[![Docs](https://img.shields.io/badge/Read-Docs-green)](https://nixtest.projects.tf)
Flexible test runner for testing Nix code, written in Go.
## Features
- Snapshot, Unit (equal checks) and Script-Tests (unit tests with assertions you could say)
- Supports testing against raw Nix code or derivation output
- Simple and easy to read summary of test results
- Junit report support (eg. for displaying the results in GitLab etc.)
## Usage
See the [docs](https://nixtest.projects.tf/usage).

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# CLI
```sh title="nix run .#nixtests:run -- --help"
Usage of nixtest:
--junit string Path to generate JUNIT report to, leave empty to disable
--pure Unset all env vars before running script tests
--skip string Regular expression to skip (e.g., 'test-.*|.*-b')
--snapshot-dir string Directory where snapshots are stored (default "./snapshots")
--tests string Path to JSON file containing tests
--update-snapshots Update all snapshots
--workers int Amount of tests to run in parallel (default 4)
```

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# Example Configs
- [TECHNOFAB/nix-gitlab-ci](https://gitlab.com/TECHNOFAB/nix-gitlab-ci)
see tests/

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# Nixtest
Flexible test runner for testing Nix code, written in Go.
## Features
- Snapshot, Unit (equal checks) and Script-Tests (unit tests with assertions you could say)
- Supports testing against raw Nix code or derivation output
- Simple and easy to read summary of test results
- Junit report support (eg. for displaying the results in GitLab etc.)

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# Usage
## Flake Module
```nix
{
inputs.nixtest.url = "gitlab:TECHNOFAB/nixtest?dir=lib";
# ... mkFlake ...
imports = [
inputs.nixtest.flakeModule
];
# perSystem
nixtest = {
# regex of tests to skip. Can also be passed as CLI arg
skip = "";
suites = {
"Suite A" = {
# pos shows the file the test was declared in in the summary and
# junit report by setting it on the suite, all tests inherit this pos
pos = __curPos;
tests = [
# define tests here (see below)
];
};
"Suite B" = {
# etc.
};
};
};
# ...
}
```
## Library
You can also integrate nixtest in your own workflow by using the lib functions directly.
Check out `flakeModule.nix` to see how it's used there.
<!-- TODO: more detailed? -->
## Define Tests
There are currently 3 types of tests:
- `snapshot` -> snapshot testing, only needs `actual` and compares that to the snapshot
- `unit` -> equality checking, needs `expected` and `actual` or `actualDrv`
- `script` -> shell script test, needs `script`
Examples:
```nix
[
{
name = "unit-test"; # required
type = "unit"; # default is unit
expected = 1;
actual = 1;
}
{
name = "snapshot-test";
type = "snapshot";
# snapshot tests use snapshot files (stored by default in ./snapshots/)
# and compare the "actual" value below with these files
actual = 1;
}
{
name = "snapshot-derivation-test";
type = "snapshot";
# instead of passing a nix expression, we can also use a derivation to do
# more complex stuff. Will only be built when running the test (+ included
# in the test time).
actualDrv = pkgs.runCommand "test-snapshot" {} ''
echo '"snapshot drv"' > $out
'';
}
{
name = "script-test";
type = "script";
script =
# there are two modes, "default"/"impure" and "pure"
# in impure mode all env variables etc. from your current session are kept
# and are available to the test
# to make it more reproducible and cleaner, use --pure to switch to pure
# mode which will unset all env variables before running the test. That
# requires you to set PATH yourself then:
''
export PATH="${lib.makeBinPath [pkgs.gnugrep]}"
grep -q "test" ${builtins.toFile "test" "test"}
'';
}
{
name = "pretty-test";
# by default it uses json to serialize and compare the values. Derivations
# and functions don't really work that way though, so you can also use
# "pretty" to use lib.generators.pretty
format = "pretty";
# you can also set the pos here
pos = __curPos;
expected = pkgs.hello;
actual = pkgs.hello;
}
]
```

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"type": "github"
}
},
"mkdocs-material-umami": {
"locked": {
"lastModified": 1745840856,
"narHash": "sha256-1Ad1JTMQMP6YsoIKAA+SBCE15qWrYkGue9/lXOLnu9I=",
"owner": "technofab",
"repo": "mkdocs-material-umami",
"rev": "3ac9b194450f6b779c37b8d16fec640198e5cd0a",
"type": "gitlab"
},
"original": {
"owner": "technofab",
"repo": "mkdocs-material-umami",
"type": "gitlab"
}
},
"nix": {
"inputs": {
"flake-compat": [
@ -205,21 +220,38 @@
"nix-gitlab-ci": {
"locked": {
"dir": "lib",
"lastModified": 1746300997,
"narHash": "sha256-PuI1WaDFgvRh5d0yBAJzkbbonZaTxqWqm1hu3WP+9iU=",
"owner": "TECHNOFAB",
"lastModified": 1746973171,
"narHash": "sha256-q/LhPZlhJB2gXZ5BfgU1Wep/1x1y9Sct3/JU8A2fzjg=",
"owner": "technofab",
"repo": "nix-gitlab-ci",
"rev": "9ee4ad02b8f950d48fb30ab11b8475a3f52d327c",
"rev": "dca2d724c155799e537a898cb9f948f8afae4921",
"type": "gitlab"
},
"original": {
"dir": "lib",
"owner": "TECHNOFAB",
"ref": "2.0.0",
"owner": "technofab",
"ref": "2.0.1",
"repo": "nix-gitlab-ci",
"type": "gitlab"
}
},
"nix-mkdocs": {
"locked": {
"dir": "lib",
"lastModified": 1745841841,
"narHash": "sha256-297zPQbUlc7ZAYDoaD6mCmQxCC3Tr4YOKekRF1ArZ7g=",
"owner": "technofab",
"repo": "nixmkdocs",
"rev": "c7e3c3b13ded25818e9789938387bba6f2cde690",
"type": "gitlab"
},
"original": {
"dir": "lib",
"owner": "technofab",
"repo": "nixmkdocs",
"type": "gitlab"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1733212471,
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"inputs": {
"devenv": "devenv",
"flake-parts": "flake-parts_2",
"mkdocs-material-umami": "mkdocs-material-umami",
"nix-gitlab-ci": "nix-gitlab-ci",
"nix-mkdocs": "nix-mkdocs",
"nixpkgs": "nixpkgs_4",
"systems": "systems",
"treefmt-nix": "treefmt-nix"

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inputs.devenv.flakeModule
inputs.treefmt-nix.flakeModule
inputs.nix-gitlab-ci.flakeModule
inputs.nix-mkdocs.flakeModule
./lib/flakeModule.nix
];
systems = import systems;
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mdformat.enable = true;
gofmt.enable = true;
};
settings.formatter.mdformat.command = let
pkg = pkgs.python3.withPackages (p: [
p.mdformat
p.mdformat-mkdocs
]);
in "${pkg}/bin/mdformat";
};
devenv.shells.default = {
containers = pkgs.lib.mkForce {};
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};
};
doc = {
path = ./docs;
deps = pp: [
pp.mkdocs-material
(pp.callPackage inputs.mkdocs-material-umami {})
];
config = {
site_name = "Nixtest";
repo_name = "TECHNOFAB/nixtest";
repo_url = "https://gitlab.com/TECHNOFAB/nixtest";
edit_uri = "edit/main/docs/";
theme = {
name = "material";
features = ["content.code.copy" "content.action.edit"];
icon.repo = "simple/gitlab";
logo = "images/logo.png";
favicon = "images/favicon.png";
palette = [
{
scheme = "default";
media = "(prefers-color-scheme: light)";
primary = "green";
accent = "light green";
toggle = {
icon = "material/brightness-7";
name = "Switch to dark mode";
};
}
{
scheme = "slate";
media = "(prefers-color-scheme: dark)";
primary = "green";
accent = "light green";
toggle = {
icon = "material/brightness-4";
name = "Switch to light mode";
};
}
];
};
plugins = ["search" "material-umami"];
nav = [
{"Introduction" = "index.md";}
{"Usage" = "usage.md";}
{"CLI" = "cli.md";}
{"Example Configs" = "examples.md";}
];
markdown_extensions = [
"pymdownx.superfences"
];
extra.analytics = {
provider = "umami";
site_id = "716d1869-9342-4b62-a770-e15d2d5c807d";
src = "https://analytics.tf/umami";
domains = "nixtest.projects.tf";
feedback = {
title = "Was this page helpful?";
ratings = [
{
icon = "material/thumb-up-outline";
name = "This page is helpful";
data = "good";
note = "Thanks for your feedback!";
}
{
icon = "material/thumb-down-outline";
name = "This page could be improved";
data = "bad";
note = "Thanks for your feedback! Please leave feedback by creating an issue :)";
}
];
};
};
};
};
ci = {
stages = ["test"];
stages = ["test" "build" "deploy"];
jobs = {
"test" = {
stage = "test";
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reports.junit = "junit.xml";
};
};
"docs" = {
stage = "build";
script = [
# sh
''
nix build .#docs:default
mkdir -p public
cp -r result/. public/
''
];
artifacts.paths = ["public"];
};
"pages" = {
nix.enable = false;
image = "alpine:latest";
stage = "deploy";
script = ["true"];
artifacts.paths = ["public"];
rules = [
{
"if" = "$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH";
}
];
};
};
};
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systems.url = "github:nix-systems/default-linux";
devenv.url = "github:cachix/devenv";
treefmt-nix.url = "github:numtide/treefmt-nix";
nix-gitlab-ci.url = "gitlab:TECHNOFAB/nix-gitlab-ci/2.0.0?dir=lib";
nix-gitlab-ci.url = "gitlab:technofab/nix-gitlab-ci/2.0.1?dir=lib";
nix-mkdocs.url = "gitlab:technofab/nixmkdocs?dir=lib";
mkdocs-material-umami.url = "gitlab:technofab/mkdocs-material-umami";
};
nixConfig = {