Harden LinuxCNC wasm and native probe workflows

core/tests/cnc_sim_api_linuxcnc_rs274_smoke.cpp

@@ -1200,6 +1200,47 @@ int main() {
     ok &= expect(saw_g52_restore, "expected LinuxCNC G52/G92 shared offset to restore with G92.3");
     ok &= expect(saw_g52_end_line, "expected LinuxCNC G52 program end line number");
 
+    const char block_delete_program[] =
+        "G21 G90 G17 F100\n"
+        "  /N10 G1 X5\n"
+        "G1 X2\n"
+        "M30\n";
+    const char block_delete_on_config[] = "{\"backend\":\"linuxcnc-rs274\",\"blockDelete\":true}";
+    events.clear();
+    ok &= expect(cnc_sim_load_config_json(sim, block_delete_on_config, sizeof(block_delete_on_config) - 1) == 0,
+                 cnc_sim_last_error(sim));
+    ok &= expect(cnc_sim_parse_program(sim, block_delete_program, sizeof(block_delete_program) - 1) == 0,
+                 cnc_sim_last_error(sim));
+    bool saw_block_delete_skipped_line = false;
+    bool saw_block_delete_followup_line = false;
+    for (const auto &event : events) {
+        saw_block_delete_skipped_line = saw_block_delete_skipped_line ||
+                                        (event.type == CNC_SIM_EVENT_LINEAR_FEED &&
+                                         event.line == 2 &&
+                                         event.end.x == 5.0);
+        saw_block_delete_followup_line = saw_block_delete_followup_line ||
+                                         (event.type == CNC_SIM_EVENT_LINEAR_FEED &&
+                                          event.line == 3 &&
+                                          event.end.x == 2.0);
+    }
+    ok &= expect(!saw_block_delete_skipped_line, "expected LinuxCNC block-delete line to be skipped");
+    ok &= expect(saw_block_delete_followup_line, "expected LinuxCNC block-delete followup line to execute");
+
+    const char block_delete_off_config[] = "{\"backend\":\"linuxcnc-rs274\",\"blockDelete\":false}";
+    events.clear();
+    ok &= expect(cnc_sim_load_config_json(sim, block_delete_off_config, sizeof(block_delete_off_config) - 1) == 0,
+                 cnc_sim_last_error(sim));
+    ok &= expect(cnc_sim_parse_program(sim, block_delete_program, sizeof(block_delete_program) - 1) == 0,
+                 cnc_sim_last_error(sim));
+    bool saw_block_delete_disabled_line = false;
+    for (const auto &event : events) {
+        saw_block_delete_disabled_line = saw_block_delete_disabled_line ||
+                                         (event.type == CNC_SIM_EVENT_LINEAR_FEED &&
+                                          event.line == 2 &&
+                                          event.end.x == 5.0);
+    }
+    ok &= expect(saw_block_delete_disabled_line, "expected LinuxCNC disabled block-delete line to execute");
+
     cnc_sim_destroy(sim);
 
     int abort_count = 0;