nix: format test fixtures via nix fmt

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: Ia9c1e9b0a8cd9c6d834f153609baa5426a6a6964

tests/lambda_pattern.nix

@@ -1,36 +1,61 @@
 # Test lambda patterns
 let
   # Basic destructuring
-  f1 = { a, b }: a + b;
+  f1 = {
+    a,
+    b,
+  }:
+    a + b;
 
   # With default values
-  f2 = { a, b ? 10 }: a + b;
+  f2 = {
+    a,
+    b ? 10,
+  }:
+    a + b;
 
   # With ellipsis (extra fields allowed)
-  f3 = { a, ... }: a * 2;
+  f3 = {a, ...}: a * 2;
 
   # Named pattern with ellipsis to allow extra fields
-  f4 = arg@{ a, b, ... }: a + b + arg.c;
+  f4 = arg @ {
+    a,
+    b,
+    ...
+  }:
+    a + b + arg.c;
 
   # Simple lambda (not a pattern)
   f5 = x: x + 1;
-in
-  {
-    # Test basic destructuring
-    test1 = f1 { a = 3; b = 4; };
+in {
+  # Test basic destructuring
+  test1 = f1 {
+    a = 3;
+    b = 4;
+  };
 
-    # Test with defaults (provide both)
-    test2a = f2 { a = 5; b = 6; };
+  # Test with defaults (provide both)
+  test2a = f2 {
+    a = 5;
+    b = 6;
+  };
 
-    # Test with defaults (use default for b)
-    test2b = f2 { a = 5; };
+  # Test with defaults (use default for b)
+  test2b = f2 {a = 5;};
 
-    # Test ellipsis (extra field ignored)
-    test3 = f3 { a = 7; extra = 999; };
+  # Test ellipsis (extra field ignored)
+  test3 = f3 {
+    a = 7;
+    extra = 999;
+  };
 
-    # Test named pattern
-    test4 = f4 { a = 1; b = 2; c = 3; };
+  # Test named pattern
+  test4 = f4 {
+    a = 1;
+    b = 2;
+    c = 3;
+  };
 
-    # Test simple lambda
-    test5 = f5 10;
-  }
+  # Test simple lambda
+  test5 = f5 10;
+}