fastfetch: add module

PR #5363

tests/modules/programs/fastfetch/basic-configuration.jsonc

@@ -0,0 +1,28 @@
+{
+  "display": {
+    "binaryPrefix": "si",
+    "color": "blue",
+    "separator": "  "
+  },
+  "logo": {
+    "padding": {
+      "right": 1
+    },
+    "source": "nixos_small"
+  },
+  "modules": [
+    {
+      "format": "{1}-{3}-{11}",
+      "key": "Date",
+      "type": "datetime"
+    },
+    {
+      "format": "{14}:{17}:{20}",
+      "key": "Time",
+      "type": "datetime"
+    },
+    "break",
+    "player",
+    "media"
+  ]
+}

tests/modules/programs/fastfetch/basic-configuration.nix

@@ -0,0 +1,39 @@
+{
+  programs.fastfetch = {
+    enable = true;
+    settings = {
+      logo = {
+        source = "nixos_small";
+        padding = { right = 1; };
+      };
+      display = {
+        binaryPrefix = "si";
+        color = "blue";
+        separator = "  ";
+      };
+      modules = [
+        {
+          type = "datetime";
+          key = "Date";
+          format = "{1}-{3}-{11}";
+        }
+        {
+          type = "datetime";
+          key = "Time";
+          format = "{14}:{17}:{20}";
+        }
+        "break"
+        "player"
+        "media"
+      ];
+    };
+  };
+
+  test.stubs.fastfetch = { };
+
+  nmt.script = let configFile = "home-files/.config/fastfetch/config.jsonc";
+  in ''
+    assertFileExists "${configFile}"
+    assertFileContent "${configFile}" ${./basic-configuration.jsonc}
+  '';
+}

tests/modules/programs/fastfetch/default-configuration.nix

@@ -0,0 +1,9 @@
+{
+  programs.fastfetch.enable = true;
+
+  test.stubs.fastfetch = { };
+
+  nmt.script = ''
+    assertPathNotExists "home-files/.config/fastfetch/config.jsonc"
+  '';
+}

tests/modules/programs/fastfetch/default.nix

@@ -0,0 +1,4 @@
+{
+  fastfetch-default-configuration = ./default-configuration.nix;
+  fastfetch-basic-configuration = ./basic-configuration.nix;
+}