Guard browser OPFS save result helper

wasm-port/tests/browser/interp_smoke.html

@@ -4535,6 +4535,10 @@
       );
     }
 
+    function verifyOpfsSaveResult(label, saveResult, expectedLines) {
+      verifyExpectedOutput(label, saveResult.result, expectedLines.join("\n"));
+    }
+
     async function verifyOpfsSavedText(label, loadActualText, expectedText) {
       verifyExpectedOutput(label, await loadActualText(), expectedText);
     }
@@ -9237,16 +9241,16 @@
         "linuxcnc.var",
         browserInterpParameterWasmPath,
       );
-      verifyExpectedOutput(
+      verifyOpfsSaveResult(
         "opfs_save_parameters",
-        savedParameters.result,
+        savedParameters,
         [
           "save_parameters=0",
           "parameter_5161=12.34",
           "parameter_5162=56.78",
           "parameter_5221=9.87",
           "parameter_5399=66.6",
-        ].join("\n"),
+        ],
       );
       await verifyOpfsMachineFileReadback(
         "opfs_saved_parameter_text",
@@ -9283,14 +9287,14 @@
         "tool.tbl",
         browserInterpToolTableWasmPath,
       );
-      verifyExpectedOutput(
+      verifyOpfsSaveResult(
         "opfs_save_tool_table",
-        savedToolTable.result,
+        savedToolTable,
         [
           "tooldata_save=0",
           "tool_1.toolno=2",
           "tool_1.pocketno=7",
-        ].join("\n"),
+        ],
       );
       await verifyOpfsMachineFileReadback(
         "opfs_saved_tool_table_text",
@@ -9393,14 +9397,14 @@
         "tool.tbl",
         browserRandomToolTableWasmPath,
       );
-      verifyExpectedOutput(
+      verifyOpfsSaveResult(
         "opfs_save_random_tool_table",
-        savedRandomToolTable.result,
+        savedRandomToolTable,
         [
           "tooldata_save=0",
           "tool_pocket_7.toolno=2",
           "tool_pocket_9.toolno=5",
-        ].join("\n"),
+        ],
       );
       await verifyOpfsMachineFileReadback(
         "opfs_saved_random_tool_table_text",
@@ -9509,16 +9513,16 @@
         iniFileParameterFilename,
         opfsCustomSessionWasmPath(iniFileParameterFilename),
       );
-      verifyExpectedOutput(
+      verifyOpfsSaveResult(
         "opfs_save_ini_named_parameter_file",
-        savedIniNamedParameters.result,
+        savedIniNamedParameters,
         [
           "save_parameters=0",
           "parameter_5161=33.75",
           "parameter_5162=67.5",
           "parameter_5221=5.25",
           "parameter_5399=199",
-        ].join("\n"),
+        ],
       );
       await verifyOpfsReadback(
         "opfs_saved_ini_named_parameter_text",
@@ -9567,14 +9571,14 @@
         iniFileToolTableFilename,
         opfsCustomSessionWasmPath(iniFileToolTableFilename),
       );
-      verifyExpectedOutput(
+      verifyOpfsSaveResult(
         "opfs_save_ini_named_tool_table",
-        savedIniNamedToolTable.result,
+        savedIniNamedToolTable,
         [
           "tooldata_save=0",
           "tool_1.toolno=8",
           "tool_1.pocketno=8",
-        ].join("\n"),
+        ],
       );
       await verifyOpfsSavedText(
         "opfs_saved_ini_named_tool_table_text",
@@ -9695,16 +9699,16 @@
         explicitParameterFilename,
         opfsCustomSessionWasmPath(explicitParameterFilename),
       );
-      verifyExpectedOutput(
+      verifyOpfsSaveResult(
         "opfs_save_explicit_parameter_file",
-        savedExplicitParameters.result,
+        savedExplicitParameters,
         [
           "save_parameters=0",
           "parameter_5161=51.25",
           "parameter_5162=102.5",
           "parameter_5221=7.5",
           "parameter_5399=202",
-        ].join("\n"),
+        ],
       );
       await verifyOpfsSavedText(
         "opfs_saved_explicit_parameter_text",
@@ -9741,14 +9745,14 @@
         explicitToolTableFilename,
         opfsCustomSessionWasmPath(explicitToolTableFilename),
       );
-      verifyExpectedOutput(
+      verifyOpfsSaveResult(
         "opfs_save_explicit_tool_table",
-        savedExplicitToolTable.result,
+        savedExplicitToolTable,
         [
           "tooldata_save=0",
           "tool_1.toolno=9",
           "tool_1.pocketno=9",
-        ].join("\n"),
+        ],
       );
       await verifyOpfsSavedText(
         "opfs_saved_explicit_tool_table_text",