tix/README.md

# Tix

Test your Nix is only ticks.

## Usage

Make a test file:

```mytest.nix
{ it, ... }:
[
    (it "can add numbers" {
        actual = 2 + 2;
        expected = 4;
    })
    (it "loves big brother" {
        actual = 2 + 2;
        expected = 5;
    })
    (it "throws a party" {
        actual = throw "a party";
        throws = true;
    })
]
```

Add tix as an input to your flake, and use it to build a test output.

```flake.nix
{
    description = "My test driven flake";

    inputs = {
        tix.url = "git+https://git.tristans.cloud/tristan/tix";
    };

    outpts = {self, tix, ...}: {
        packages.x86_64-linux.test = tix.run [
            ./mytest.nix
        ];
    };
}
```

Then run the generated package.

```sh
nix run .#test --show-trace
```

Watch for changes while you are developing your package by adding a new output.

```flake.nix
tix.watch "nix run .#test | ${pkgs.fx}/bin/fx" "fx";
```

I am piping the output into `fx` so I can navigate it easier.

`"fx"` is the process name that must be killed before rerunning.