diff --git a/src/CodeCoverage.php b/src/CodeCoverage.php
index 374df0191..314bd968a 100644
--- a/src/CodeCoverage.php
+++ b/src/CodeCoverage.php
@@ -277,11 +277,13 @@ public function append(RawCodeCoverageData $rawData, $id = null, bool $append =
                 return;
             }
 
-            $size   = 'unknown';
-            $status = -1;
+            $size         = 'unknown';
+            $status       = -1;
+            $fromTestcase = false;
 
             if ($id instanceof TestCase) {
-                $_size = $id->getSize();
+                $fromTestcase = true;
+                $_size        = $id->getSize();
 
                 if ($_size === Test::SMALL) {
                     $size = 'small';
@@ -294,11 +296,12 @@ public function append(RawCodeCoverageData $rawData, $id = null, bool $append =
                 $status = $id->getStatus();
                 $id     = get_class($id) . '::' . $id->getName();
             } elseif ($id instanceof PhptTestCase) {
-                $size = 'large';
-                $id   = $id->getName();
+                $fromTestcase = true;
+                $size         = 'large';
+                $id           = $id->getName();
             }
 
-            $this->tests[$id] = ['size' => $size, 'status' => $status];
+            $this->tests[$id] = ['size' => $size, 'status' => $status, 'fromTestcase' => $fromTestcase];
 
             $this->data->markCodeAsExecutedByTestCase($id, $rawData);
         }
diff --git a/src/Report/Html/Renderer/File.php b/src/Report/Html/Renderer/File.php
index e393a087c..09c1ae7bd 100644
--- a/src/Report/Html/Renderer/File.php
+++ b/src/Report/Html/Renderer/File.php
@@ -990,43 +990,44 @@ private function abbreviateMethodName(string $methodName): string
 
     private function createPopoverContentForTest(string $test, array $testData): string
     {
-        switch ($testData['status']) {
-            case BaseTestRunner::STATUS_PASSED:
-                switch ($testData['size']) {
-                    case 'small':
-                        $testCSS = ' class="covered-by-small-tests"';
+        $testCSS = '';
 
-                        break;
+        if ($testData['fromTestcase']) {
+            switch ($testData['status']) {
+                case BaseTestRunner::STATUS_PASSED:
+                    switch ($testData['size']) {
+                        case 'small':
+                            $testCSS = ' class="covered-by-small-tests"';
 
-                    case 'medium':
-                        $testCSS = ' class="covered-by-medium-tests"';
+                            break;
 
-                        break;
+                        case 'medium':
+                            $testCSS = ' class="covered-by-medium-tests"';
 
-                    default:
-                        $testCSS = ' class="covered-by-large-tests"';
+                            break;
 
-                        break;
-                }
+                        default:
+                            $testCSS = ' class="covered-by-large-tests"';
 
-                break;
+                            break;
+                    }
 
-            case BaseTestRunner::STATUS_SKIPPED:
-            case BaseTestRunner::STATUS_INCOMPLETE:
-            case BaseTestRunner::STATUS_RISKY:
-            case BaseTestRunner::STATUS_WARNING:
-                $testCSS = ' class="warning"';
+                    break;
 
-                break;
+                case BaseTestRunner::STATUS_SKIPPED:
+                case BaseTestRunner::STATUS_INCOMPLETE:
+                case BaseTestRunner::STATUS_RISKY:
+                case BaseTestRunner::STATUS_WARNING:
+                    $testCSS = ' class="warning"';
 
-            case BaseTestRunner::STATUS_FAILURE:
-            case BaseTestRunner::STATUS_ERROR:
-                $testCSS = ' class="danger"';
+                    break;
 
-                break;
+                case BaseTestRunner::STATUS_FAILURE:
+                case BaseTestRunner::STATUS_ERROR:
+                    $testCSS = ' class="danger"';
 
-            default:
-                $testCSS = '';
+                    break;
+            }
         }
 
         return sprintf(
diff --git a/tests/tests/CodeCoverageTest.php b/tests/tests/CodeCoverageTest.php
index 9e8996e5f..14df3f824 100644
--- a/tests/tests/CodeCoverageTest.php
+++ b/tests/tests/CodeCoverageTest.php
@@ -64,10 +64,10 @@ public function testCollect(): void
 
         $this->assertEquals(
             [
-                'BankAccountTest::testBalanceIsInitiallyZero'       => ['size' => 'unknown', 'status' => -1],
-                'BankAccountTest::testBalanceCannotBecomeNegative'  => ['size' => 'unknown', 'status' => -1],
-                'BankAccountTest::testBalanceCannotBecomeNegative2' => ['size' => 'unknown', 'status' => -1],
-                'BankAccountTest::testDepositWithdrawMoney'         => ['size' => 'unknown', 'status' => -1],
+                'BankAccountTest::testBalanceIsInitiallyZero'       => ['size' => 'unknown', 'status' => -1, 'fromTestcase' => true],
+                'BankAccountTest::testBalanceCannotBecomeNegative'  => ['size' => 'unknown', 'status' => -1, 'fromTestcase' => true],
+                'BankAccountTest::testBalanceCannotBecomeNegative2' => ['size' => 'unknown', 'status' => -1, 'fromTestcase' => true],
+                'BankAccountTest::testDepositWithdrawMoney'         => ['size' => 'unknown', 'status' => -1, 'fromTestcase' => true],
             ],
             $coverage->getTests()
         );