From 4968ad8a90125ec3c03e8cc7598ab121dc6ea738 Mon Sep 17 00:00:00 2001
From: Jason Reed <jcreed@semmle.com>
Date: Wed, 11 Mar 2020 09:04:59 -0400
Subject: [PATCH] Only create nonempty test suites

Fixes #269.
---
 extensions/ql-vscode/src/test-adapter.ts | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/extensions/ql-vscode/src/test-adapter.ts b/extensions/ql-vscode/src/test-adapter.ts
index 932b53fef..a341f1131 100644
--- a/extensions/ql-vscode/src/test-adapter.ts
+++ b/extensions/ql-vscode/src/test-adapter.ts
@@ -168,15 +168,20 @@ export class QLTestAdapter extends DisposableObject implements TestAdapter {
     this._tests.fire(<TestLoadStartedEvent>{ type: 'started' });
 
     const testDirectories = this.qlTestDiscovery.testDirectories;
+    const children = testDirectories.map(
+      testDirectory => QLTestAdapter.createTestSuiteInfo(testDirectory, testDirectory.name)
+    );
     const testSuite: TestSuiteInfo = {
       type: 'suite',
       label: 'CodeQL',
       id: '.',
-      children: testDirectories.map(
-        testDirectory => QLTestAdapter.createTestSuiteInfo(testDirectory, testDirectory.name))
+      children
     };
 
-    this._tests.fire(<TestLoadFinishedEvent>{ type: 'finished', suite: testSuite });
+    this._tests.fire(<TestLoadFinishedEvent>{
+      type: 'finished',
+      suite: children.length > 0 ? testSuite : undefined
+    });
   }
 
   public async run(tests: string[]): Promise<void> {