15681 - Omit unittest.TestCase from test explorer discovered nodes (microsoft#15685)

* 15681 - Omit unittest.TestCase from test explorer discovered nodes * 15681 Added missed news file * 15681 Better fix to omit any suites with no tests * Update news/2 Fixes/15681.md Co-authored-by: Karthik Nadig <kanadig@microsoft.com> Co-authored-by: Karthik Nadig <kanadig@microsoft.com>

Author: bobwalker99

news/2 Fixes/15681.md

@@ -0,0 +1,2 @@
+Stop `unittest.TestCase` appearing as a test suite in the test explorer tree.
+(thanks [Bob](https://github.com/bobwalker99).

src/client/testing/nosetest/services/parserService.ts

@@ -26,7 +26,10 @@ export class TestsParser implements ITestsParser {
  public parse(content: string, options: ParserOptions): Tests {
  let testFiles = this.getTestFiles(content, options);
  // Exclude tests that don't have any functions or test suites.
- testFiles = testFiles.filter((testFile) => testFile.suites.length > 0 || testFile.functions.length > 0);
+ testFiles = testFiles.filter((testFile) => {
+ testFile.suites = testFile.suites.filter((suite) => suite.functions.length > 0);
+ return testFile.suites.length > 0 || testFile.functions.length > 0;
+ });
  return this.testsHelper.flattenTestFiles(testFiles, options.cwd);
  }