feat: unit tests

.github/workflows/flake_check.yml

@@ -1,24 +0,0 @@
-name: Nix Flake Check
-
-on: [push, pull_request, workflow_dispatch]
-
-jobs:
-  checks:
-    name: Check expressions
-    runs-on: ubuntu-latest
-
-    steps:
-      # - name: Checkout repository
-      #   uses: actions/checkout@v4
-      # - name: Install nix
-      #   uses: cachix/install-nix-action@v24
-      #   with:
-      #     install_url: https://nixos.org/nix/install
-      #     extra_nix_config: |
-      #       access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-      #       experimental-features = nix-command flakes
-
-      - name: Run Nix Flake Check
-        run: |
-          echo 'TODO: nix flake check'
-          # nix flake check

.github/workflows/flake_unittests.yml

@@ -0,0 +1,24 @@
+name: Nix Flake Unit Tests
+
+on: [push, pull_request, workflow_dispatch]
+
+jobs:
+  checks:
+    name: Check expressions
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Install nix
+        uses: cachix/install-nix-action@v24
+        with:
+          install_url: https://nixos.org/nix/install
+          extra_nix_config: |
+            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+            experimental-features = nix-command flakes
+
+      - name: Run Nix Flake Unit Tests
+        run: |
+          echo 'Flake Unit Tests'
+          nix eval .#unitTests --show-trace --print-build-logs --verbose

outputs/README.md

@@ -7,6 +7,14 @@ There is no need to do this when you have a small number of machines.
 But when you have a large number of machines, it is necessary to manage them in a fine-grained way,
 otherwise, it will be difficult to manage and maintain them.
 
+## Unit Tests
+
+Unit Tests for all flake outputs(only NixOS systems currently).
+
+```bash
+nix eval .#unitTests --show-trace --print-build-logs --verbose
+```
+
 ## Overview
 
 All the outputs of this flake are defined here.
@@ -56,5 +64,3 @@ All the outputs of this flake are defined here.
 
 12 directories, 28 files
 ```
-
-

outputs/aarch64-darwin/default.nix

@@ -19,12 +19,3 @@
   };
 in
   outputs
-  // {
-    inherit data; # for debugging purposes
-
-    # NixOS's unit tests.
-    # unit-tests = haumea.lib.loadEvalTests {
-    #   src = ./tests;
-    #   inputs = args;
-    # };
-  }

outputs/aarch64-linux/default.nix

@@ -31,8 +31,8 @@ in
     inherit data; # for debugging purposes
 
     # NixOS's unit tests.
-    # unit-tests = haumea.lib.loadEvalTests {
-    #   src = ./tests;
-    #   inputs = args;
-    # };
+    unitTests = haumea.lib.loadEvalTests {
+      src = ./tests;
+      inputs = args // {inherit outputs;};
+    };
   }

outputs/aarch64-linux/tests/hostname/expected.nix

@@ -0,0 +1,8 @@
+{
+  lib,
+  outputs,
+}: let
+  hostsNames = builtins.attrNames outputs.nixosConfigurations;
+  expected = lib.genAttrs hostsNames (name: name);
+in
+  expected

outputs/aarch64-linux/tests/hostname/expr.nix

@@ -0,0 +1,9 @@
+{
+  lib,
+  outputs,
+}:
+lib.genAttrs
+(builtins.attrNames outputs.nixosConfigurations)
+(
+  name: outputs.nixosConfigurations.${name}.config.networking.hostName
+)

outputs/default.nix

@@ -52,6 +52,9 @@ in {
   # add attribute sets into outputs, for debugging
   debugAttrs = {inherit nixosSystems darwinSystems allSystems allSystemNames;};
 
+  # Unit Tests for all NixOS systems.
+  unitTests = lib.lists.all (it: it.unitTests == {}) nixosSystemValues;
+
   # NixOS Hosts
   nixosConfigurations =
     lib.attrsets.mergeAttrsList (map (it: it.nixosConfigurations or {}) nixosSystemValues);
@@ -89,9 +92,6 @@ in {
   # Unit Tests, Intergraded Tests, and Pre-commit checks
   checks = forAllSystems (
     system: {
-      # Unit Tests for the system
-      # unit-tests = allSystems.${system}.unit-tests;
-
       pre-commit-check = pre-commit-hooks.lib.${system}.run {
         src = ./.;
         hooks = {

outputs/riscv64-linux/default.nix

@@ -31,8 +31,8 @@ in
     inherit data; # for debugging purposes
 
     # NixOS's unit tests.
-    # unit-tests = haumea.lib.loadEvalTests {
-    #   src = ./tests;
-    #   inputs = args;
-    # };
+    unitTests = haumea.lib.loadEvalTests {
+      src = ./tests;
+      inputs = args // {inherit outputs;};
+    };
   }

outputs/riscv64-linux/tests/hostname/expected.nix

@@ -0,0 +1,8 @@
+{
+  lib,
+  outputs,
+}: let
+  hostsNames = builtins.attrNames outputs.nixosConfigurations;
+  expected = lib.genAttrs hostsNames (name: name);
+in
+  expected

outputs/riscv64-linux/tests/hostname/expr.nix

@@ -0,0 +1,9 @@
+{
+  lib,
+  outputs,
+}:
+lib.genAttrs
+(builtins.attrNames outputs.nixosConfigurations)
+(
+  name: outputs.nixosConfigurations.${name}.config.networking.hostName
+)

outputs/x86_64-darwin/default.nix

@@ -19,12 +19,3 @@
   };
 in
   outputs
-  // {
-    inherit data; # for debugging purposes
-
-    # NixOS's unit tests.
-    # unit-tests = haumea.lib.loadEvalTests {
-    #   src = ./tests;
-    #   inputs = args;
-    # };
-  }

outputs/x86_64-linux/default.nix

@@ -30,8 +30,8 @@ in
     inherit data; # for debugging purposes
 
     # NixOS's unit tests.
-    # unit-tests = haumea.lib.loadEvalTests {
-    #   src = ./tests;
-    #   inputs = args;
-    # };
+    unitTests = haumea.lib.loadEvalTests {
+      src = ./tests;
+      inputs = args // {inherit outputs;};
+    };
   }

outputs/x86_64-linux/tests/home-manager/expected.nix

@@ -0,0 +1,15 @@
+{
+  myvars,
+  lib,
+}: let
+  username = myvars.username;
+  hosts = [
+    "ai-hyprland"
+    "ai-i3"
+    "shoukei-hyprland"
+    "shoukei-i3"
+    "ruby"
+    "k3s-prod-1-master-1"
+  ];
+in
+  lib.genAttrs hosts (_: "/home/${username}")

outputs/x86_64-linux/tests/home-manager/expr.nix

@@ -0,0 +1,20 @@
+{
+  myvars,
+  lib,
+  outputs,
+}: let
+  username = myvars.username;
+  hosts = [
+    "ai-hyprland"
+    "ai-i3"
+    "shoukei-hyprland"
+    "shoukei-i3"
+    "ruby"
+    "k3s-prod-1-master-1"
+  ];
+in
+  lib.genAttrs
+  hosts
+  (
+    name: outputs.nixosConfigurations.${name}.config.home-manager.users.${username}.home.homeDirectory
+  )

outputs/x86_64-linux/tests/hostname/expected.nix

@@ -0,0 +1,17 @@
+{
+  lib,
+  outputs,
+}: let
+  specialExpected = {
+    "ai-hyprland" = "ai";
+    "ai-i3" = "ai";
+    "shoukei-hyprland" = "shoukei";
+    "shoukei-i3" = "shoukei";
+  };
+  specialHostNames = builtins.attrNames specialExpected;
+
+  otherHosts = builtins.removeAttrs outputs.nixosConfigurations specialHostNames;
+  otherHostsNames = builtins.attrNames otherHosts;
+  # other hosts's hostName is the same as the nixosConfigurations name
+  otherExpected = lib.genAttrs otherHostsNames (name: name);
+in (specialExpected // otherExpected)

outputs/x86_64-linux/tests/hostname/expr.nix

@@ -0,0 +1,9 @@
+{
+  lib,
+  outputs,
+}:
+lib.genAttrs
+(builtins.attrNames outputs.nixosConfigurations)
+(
+  name: outputs.nixosConfigurations.${name}.config.networking.hostName
+)