@@ -879,25 +879,27 @@ effectIt.layer(NodeServices.layer)("resolveWindowsEnvironment", (it) => {
     }),
   );
 
-  it.effect("probes node with a single PATH key when the inherited env spells it Path", () =>
-    Effect.gen(function* () {
-      const probedEnvironments: Array<NodeJS.ProcessEnv | undefined> = [];
-
-      yield* withWindowsEnvironmentMocks(
-        resolveWindowsEnvironment({ Path: "C:\\Windows\\System32" }),
-        () => ({ PATH: "C:\\Shell\\Bin" }),
-        (_command, options) =>
-          Effect.sync(() => {
-            probedEnvironments.push(options?.env);
-            return true;
-          }),
-      );
+  it.effect(
+    "probes node with one PATH key when inherited environment records have mixed casing",
+    () =>
+      Effect.gen(function* () {
+        const probedEnvironments: Array<NodeJS.ProcessEnv | undefined> = [];
 
-      const pathEntries = Object.entries(probedEnvironments[0] ?? {}).filter(
-        ([key]) => key.toUpperCase() === "PATH",
-      );
-      expect(pathEntries).toEqual([["PATH", "C:\\Shell\\Bin;C:\\Windows\\System32"]]);
-    }),
+        yield* withWindowsEnvironmentMocks(
+          resolveWindowsEnvironment({ Path: "C:\\Stale", PATH: "C:\\Windows\\System32" }),
+          () => ({ PATH: "C:\\Shell\\Bin" }),
+          (_command, options) =>
+            Effect.sync(() => {
+              probedEnvironments.push(options?.env);
+              return true;
+            }),
+        );
+
+        const pathEntries = Object.entries(probedEnvironments[0] ?? {}).filter(
+          ([key]) => key.toUpperCase() === "PATH",
+        );
+        expect(pathEntries).toEqual([["PATH", "C:\\Shell\\Bin;C:\\Windows\\System32"]]);
+      }),
   );
 
   it.effect("loads the PowerShell profile when baseline env cannot resolve node", () =>