tests: use warning-expectations options

Deprecated the old `test.check*` options.

modules/top-level/test.nix

@@ -94,12 +94,15 @@ in
     checkWarnings = lib.mkOption {
       type = lib.types.bool;
       description = "Whether to check `config.warnings` in the test.";
+      apply = x: lib.warnIfNot x "`test.checkWarnings = false` is replaced with `test.warnings = [ ]`." x;
       default = true;
     };
 
     checkAssertions = lib.mkOption {
       type = lib.types.bool;
       description = "Whether to check `config.assertions` in the test.";
+      apply =
+        x: lib.warnIfNot x "`test.checkAssertions = false` is replaced with `test.assertions = [ ]`." x;
       default = true;
     };
 

tests/test-sources/plugins/by-name/nvim-osc52/default.nix

@@ -1,9 +1,17 @@
+let
+  expect = expect: value: { inherit expect value; };
+
+  # This plugin is deprecated
+  warnings = [
+    (expect "count" 1)
+    (expect "any" "this plugin is obsolete and will be removed after 24.11.")
+  ];
+in
 {
   empty = {
     plugins.nvim-osc52.enable = true;
 
-    # Hide warnings, since this plugin is deprecated
+    test = { inherit warnings; };
-    test.checkWarnings = false;
   };
 
   defaults = {
@@ -20,7 +28,6 @@
       };
     };
 
-    # Hide warnings, since this plugin is deprecated
+    test = { inherit warnings; };
-    test.checkWarnings = false;
   };
 }

tests/test-sources/plugins/by-name/rust-tools/default.nix

@@ -1,13 +1,20 @@
+let
+  expect = expect: value: { inherit expect value; };
+
+  # This plugin is deprecated
+  warnings = [
+    (expect "count" 1)
+    (expect "any" "The `rust-tools` project has been abandoned.")
+  ];
+in
 {
   empty = {
-    # Plugin deprecated
+    test = { inherit warnings; };
-    test.checkWarnings = false;
     plugins.rust-tools.enable = true;
   };
 
   defaults = {
-    # Plugin deprecated
+    test = { inherit warnings; };
-    test.checkWarnings = false;
     plugins.rust-tools = {
       enable = true;
       executor = "termopen";
@@ -77,8 +84,7 @@
   };
 
   rust-analyzer-options = {
-    # Plugin deprecated
+    test = { inherit warnings; };
-    test.checkWarnings = false;
     plugins.rust-tools = {
       enable = true;
       server = {