reintroduce node golden generation

@asturur this is what I meant in the comments of #8206

Author: ShaMan123

scripts/index.js

@@ -320,40 +320,53 @@ async function runTestem({ suite, port, launch, dev, processOptions, context } =
  * @returns {Promise<boolean | undefined>} true if some tests failed
  */
 async function test(suite, tests, options = {}) {
-    const processOptions = {
-        cwd: wd,
-        env: {
-            ...process.env,
-            TEST_FILES: (tests || []).join(','),
-            NODE_CMD: ['qunit', 'test/node_test_setup.js', 'test/lib'].concat(tests || `test/${suite}`).join(' '),
-            VERBOSE: Number(options.verbose),
-            QUNIT_DEBUG_VISUAL_TESTS: Number(options.debug),
-            QUNIT_RECREATE_VISUAL_REFS: Number(options.recreate),
-            QUNIT_FILTER: options.filter,
-            REPORT_FILE: options.out
-        },
-        shell: true,
-        stdio: 'inherit',
-    }
-
     let failed = false;
+    const qunitEnv = {
+        QUNIT_DEBUG_VISUAL_TESTS: Number(options.debug),
+        QUNIT_RECREATE_VISUAL_REFS: Number(options.recreate),
+        QUNIT_FILTER: options.filter,
+    };
+    const env = {
+        ...process.env,
+        TEST_FILES: (tests || []).join(','),
+        NODE_CMD: ['qunit', 'test/node_test_setup.js', 'test/lib'].concat(tests || `test/${suite}`).join(' '),
+        VERBOSE: Number(options.verbose),
+        REPORT_FILE: options.out
+    };
+    const browserContexts = options.context.filter(c => c !== 'node');
 
     // temporary revert
     // run node tests directly with qunit
     if (options.context.includes('node')) {
         try {
-            cp.execSync(processOptions.env.NODE_CMD, processOptions);            
+            cp.execSync(env.NODE_CMD, {
+                cwd: wd,
+                env: {
+                    ...env,
+                    // browser takes precendence in golden ref generation
+                    ...(browserContexts.length === 0 ? qunitEnv : {})
+                },
+                shell: true,
+                stdio: 'inherit',
+            });
         } catch (error) {
             failed = true;
         }
     }
 
-    const browserContexts = options.context.filter(c => c !== 'node');
     if (browserContexts.length > 0) {
         failed = await runTestem({
             ...options,
             suite,
-            processOptions,
+            processOptions: {
+                cwd: wd,
+                env: {
+                    ...env,
+                    ...qunitEnv
+                },
+                shell: true,
+                stdio: 'inherit',
+            },
             context: browserContexts
         }) || failed;
     }

test/node_test_setup.js

@@ -3,17 +3,17 @@ var chalk = require('chalk');
 var diff = require('deep-object-diff').diff;
 var commander = require('commander');
 
-// commander.program
-//   .option('-d, --debug', 'debug visual tests by overriding refs (golden images) in case of visual changes', false)
-//   .option('-r, --recreate', 'recreate visual refs (golden images)', false)
-//   .action(options => {
-//     QUnit.debug = QUnit.debugVisual = options.debug;
-//     QUnit.recreateVisualRefs = options.recreate;
-//   }).parse(process.argv);
-// //  for now accept an env variable because qunit doesn't allow passing unknown options
-// QUnit.debugVisual = Number(process.env.QUNIT_DEBUG_VISUAL_TESTS);
-// QUnit.recreateVisualRefs = Number(process.env.QUNIT_RECREATE_VISUAL_REFS);
-// QUnit.config.filter = process.env.QUNIT_FILTER;
+commander.program
+  .option('-d, --debug', 'debug visual tests by overriding refs (golden images) in case of visual changes', false)
+  .option('-r, --recreate', 'recreate visual refs (golden images)', false)
+  .action(options => {
+    QUnit.debug = QUnit.debugVisual = options.debug;
+    QUnit.recreateVisualRefs = options.recreate;
+  }).parse(process.argv);
+//  for now accept an env variable because qunit doesn't allow passing unknown options
+QUnit.debugVisual = Number(process.env.QUNIT_DEBUG_VISUAL_TESTS);
+QUnit.recreateVisualRefs = Number(process.env.QUNIT_RECREATE_VISUAL_REFS);
+QUnit.config.filter = process.env.QUNIT_FILTER;
 
 global.fabric = require('../dist/fabric').fabric;
 global.pixelmatch = require('pixelmatch');