Ignore empty test suites in GitHub job summary report

Author: Kobzol

src/ci/citool/src/metrics.rs

@@ -119,18 +119,20 @@ fn test_metadata_name(metadata: &TestSuiteMetadata) -> String {
 fn aggregate_test_suites(suites: &[&TestSuite]) -> BTreeMap<String, TestSuiteRecord> {
     let mut records: BTreeMap<String, TestSuiteRecord> = BTreeMap::new();
     for suite in suites {
-        let name = test_metadata_name(&suite.metadata);
-        let record = records.entry(name).or_default();
-        for test in &suite.tests {
-            match test.outcome {
-                TestOutcome::Passed => {
-                    record.passed += 1;
-                }
-                TestOutcome::Failed => {
-                    record.failed += 1;
-                }
-                TestOutcome::Ignored { .. } => {
-                    record.ignored += 1;
+        if !suite.tests.is_empty() {
+            let name = test_metadata_name(&suite.metadata);
+            let record = records.entry(name).or_default();
+            for test in &suite.tests {
+                match test.outcome {
+                    TestOutcome::Passed => {
+                        record.passed += 1;
+                    }
+                    TestOutcome::Failed => {
+                        record.failed += 1;
+                    }
+                    TestOutcome::Ignored { .. } => {
+                        record.ignored += 1;
+                    }
                 }
             }
         }