fix path on windows

Author: blink1073

.evergreen/scripts/setup-tests.py

@@ -242,17 +242,16 @@ def handle_test_env() -> None:
         run_command(f"bash {DRIVERS_TOOLS}/.evergreen/csfle/start-servers.sh")
 
     if is_set("TEST_CRYPT_SHARED"):
-        CRYPT_SHARED_DIR = Path(os.environ["CRYPT_SHARED_LIB_PATH"]).parent
+        CRYPT_SHARED_DIR = Path(os.environ["CRYPT_SHARED_LIB_PATH"]).parent.as_posix()
         LOGGER.info("Using crypt_shared_dir %s", CRYPT_SHARED_DIR)
         DYLD_FALLBACK_LIBRARY_PATH = os.environ.get("DYLD_FALLBACK_LIBRARY_PATH", "")
         LD_LIBRARY_PATH = os.environ.get("LD_LIBRARY_PATH", "")
-        PATH = os.environ["PATH"]
         write_env(
             "DYLD_FALLBACK_LIBRARY_PATH",
             f"{CRYPT_SHARED_DIR}{os.pathsep}{DYLD_FALLBACK_LIBRARY_PATH}",
         )
         write_env("LD_LIBRARY_PATH", f"{CRYPT_SHARED_DIR}{os.pathsep}{LD_LIBRARY_PATH}")
-        write_env("PATH", f"{CRYPT_SHARED_DIR}{os.pathsep}{PATH}")
+        write_env("PATH", f"{CRYPT_SHARED_DIR}:$PATH")
 
     if is_set("TEST_FLE_AZURE_AUTO") or is_set("TEST_FLE_GCP_AUTO"):
         if "SUCCESS" not in os.environ: