diff --git a/.vscode/settings.json b/.vscode/settings.json
index b6774c8b..2a942773 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -98,7 +98,11 @@
     "variant": "cpp",
     "vector": "cpp",
     "*.tcc": "cpp",
-    "memory_resource": "cpp"
+    "memory_resource": "cpp",
+    "__bits": "cpp",
+    "__verbose_abort": "cpp",
+    "compare": "cpp",
+    "concepts": "cpp"
   },
   "editor.defaultFormatter": "esbenp.prettier-vscode",
   "[javascript]": {
diff --git a/src/framework/AbstractExecutable.ts b/src/framework/AbstractExecutable.ts
index c05ebd6a..ee7dcbdf 100644
--- a/src/framework/AbstractExecutable.ts
+++ b/src/framework/AbstractExecutable.ts
@@ -512,6 +512,13 @@ export abstract class AbstractExecutable<TestT extends AbstractTest = AbstractTe
     breakOnFailure: boolean,
   ): string[];
 
+  /**
+   * Can be overridden, some cases make it necessary
+   */
+  protected _splitTests(tests: readonly AbstractTest[]): (readonly AbstractTest[])[] {
+    return [tests];
+  }
+
   getDebugParams(childrenToRun: readonly Readonly<AbstractTest>[], breakOnFailure: boolean): string[] {
     return this.shared.prependTestRunningArgs.concat(this._getDebugParamsInner(childrenToRun, breakOnFailure));
   }
@@ -580,10 +587,11 @@ export abstract class AbstractExecutable<TestT extends AbstractTest = AbstractTe
       return;
     }
 
-    const buckets = this._splitTestSetForMultirunIfEnabled(testsToRunFinal);
-    const actualTestBuckets = buckets.flatMap(b => this._splitTestsToSmallEnoughSubsets(b)); //TODO:future merge with _splitTestSetForMultirunIfEnabled
+    const splittedForFramework = this._splitTests(testsToRunFinal);
+    const splittedForMultirun = splittedForFramework.flatMap(v => this._splitTestSetForMultirunIfEnabled(v));
+    const splittedFinal = splittedForMultirun.flatMap(b => this._splitTestsToSmallEnoughSubsets(b)); //TODO:future merge with _splitTestSetForMultirunIfEnabled
 
-    const runningBucketPromises = actualTestBuckets.map(b =>
+    const runningBucketPromises = splittedFinal.map(b =>
       this._runInner(testRun, b, taskPool, cancellationToken).catch(err => {
         vscode.window.showWarningMessage(err.toString());
       }),
diff --git a/src/framework/doctest/DOCExecutable.ts b/src/framework/doctest/DOCExecutable.ts
index 3ea7fa2d..ea88cab7 100644
--- a/src/framework/doctest/DOCExecutable.ts
+++ b/src/framework/doctest/DOCExecutable.ts
@@ -165,7 +165,7 @@ export class DOCExecutable extends AbstractExecutable<DOCTest> {
       params.push('--subcase-filter-levels=' + subTests.length);
     } else if (childrenToRun.every(v => v instanceof DOCTest)) {
       const dc = childrenToRun as readonly DOCTest[];
-      if (dc.length > 0 && dc[0].suiteName && dc.every(v => v.suiteName === dc[0].suiteName)) {
+      if (dc.length && dc[0].suiteName && dc.every(v => v.suiteName === dc[0].suiteName)) {
         params.push('--test-suite=' + dc[0].suiteName);
       }
       const testNames = dc.map(c => c.getEscapedTestName());
@@ -201,6 +201,31 @@ export class DOCExecutable extends AbstractExecutable<DOCTest> {
     return execParams;
   }
 
+  protected override _splitTests(tests: readonly AbstractTest[]): (readonly AbstractTest[])[] {
+    const withoutSuite: AbstractTest[] = [];
+    const suites = new Map<string, AbstractTest[]>();
+    for (const test of tests) {
+      if (test instanceof DOCTest) {
+        if (test.suiteName) {
+          const f = suites.get(test.suiteName);
+          if (f) f.push(test);
+          else {
+            const s = [test];
+            suites.set(test.suiteName, s);
+          }
+        } else {
+          withoutSuite.push(test);
+        }
+      } else {
+        this.shared.log.error('expected DOCTest but got something else');
+      }
+    }
+    const result: AbstractTest[][] = [];
+    if (withoutSuite.length) result.push(withoutSuite);
+    result.push(...suites.values());
+    return result;
+  }
+
   protected async _handleProcess(testRun: vscode.TestRun, runInfo: RunningExecutable): Promise<HandleProcessResult> {
     const unexpectedTests: DOCTest[] = [];
     const expectedToRunAndFoundTests: DOCTest[] = [];