Fix test exec platform constraints and transitions (#2736)

Co-authored-by: Brentley Jones <github@brentleyjones.com>

Author: fmeum

apple/internal/rule_factory.bzl

@@ -77,15 +77,15 @@ AppleTestRunnerInfo provider.
         providers = [AppleBundleInfo],
     ),
     "_apple_coverage_support": attr.label(
-        cfg = "exec",
+        cfg = config.exec(exec_group = "test"),
         default = Label("@build_bazel_apple_support//tools:coverage_support"),
     ),
     "_lcov_merger": attr.label(
         default = configuration_field(
             fragment = "coverage",
             name = "output_generator",
         ),
-        cfg = "exec",
+        cfg = config.exec(exec_group = "test"),
     ),
     "test_filter": attr.string(
         doc = """
@@ -180,9 +180,13 @@ def _create_apple_test_rule(*, doc, implementation, platform_type):
             *ide_visible_attrs
         ),
         doc = doc,
-        exec_compatible_with = [
-            "@platforms//os:macos",
-        ],
+        exec_groups = {
+            "test": exec_group(
+                exec_compatible_with = [
+                    "@platforms//os:macos",
+                ],
+            ),
+        },
         test = True,
     )
 

apple/internal/testing/build_test_rules.bzl

@@ -121,9 +121,6 @@ number (for example, `"9.0"`).
             ),
         },
         doc = doc,
-        exec_compatible_with = [
-            "@platforms//os:macos",
-        ],
         implementation = _apple_build_test_rule_impl,
         test = True,
         cfg = transition_support.apple_rule_transition,