lib.generators: add toINIWithGlobalSection

As discussed in
https://github.com/NixOS/nixpkgs/pull/118925#issuecomment-821112723,
this is the best way of adding global sections to `toINI` without
employing heuristics (i.e. checking whether something is an attrset).

1 files changed, 60 insertions, 0 deletions

diff --git a/lib/tests/misc.nix b/lib/tests/misc.nix
index 5fa95828df691..6687b9bebaeeb 100644
--- a/lib/tests/misc.nix
+++ b/lib/tests/misc.nix
@@ -471,6 +471,66 @@ runTests {
     '';
   };
 
+  testToINIWithGlobalSectionEmpty = {
+    expr = generators.toINIWithGlobalSection {} {
+      globalSection = {
+      };
+      sections = {
+      };
+    };
+    expected = ''
+    '';
+  };
+
+  testToINIWithGlobalSectionGlobalEmptyIsTheSameAsToINI =
+    let
+      sections = {
+        "section 1" = {
+          attribute1 = 5;
+          x = "Me-se JarJar Binx";
+        };
+        "foo" = {
+          "he\\h=he" = "this is okay";
+        };
+      };
+    in {
+      expr =
+        generators.toINIWithGlobalSection {} {
+            globalSection = {};
+            sections = sections;
+        };
+      expected = generators.toINI {} sections;
+  };
+
+  testToINIWithGlobalSectionFull = {
+    expr = generators.toINIWithGlobalSection {} {
+      globalSection = {
+        foo = "bar";
+        test = false;
+      };
+      sections = {
+        "section 1" = {
+          attribute1 = 5;
+          x = "Me-se JarJar Binx";
+        };
+        "foo" = {
+          "he\\h=he" = "this is okay";
+        };
+      };
+    };
+    expected = ''
+      foo=bar
+      test=false
+
+      [foo]
+      he\h\=he=this is okay
+
+      [section 1]
+      attribute1=5
+      x=Me-se JarJar Binx
+    '';
+  };
+
   /* right now only invocation check */
   testToJSONSimple =
     let val = {