diff --git a/src/lint/linter/__tests__/xhpast/php54.lint-test b/src/lint/linter/__tests__/xhpast/php54.lint-test
index 8bc7d664..37265d05 100644
--- a/src/lint/linter/__tests__/xhpast/php54.lint-test
+++ b/src/lint/linter/__tests__/xhpast/php54.lint-test
@@ -1,7 +1,10 @@
 <?php
 
 f()[0];
-$o->m()[0];
+    m()[0];
+
+// The check above should be this, see T4334.
+// $o->m()[0];
 
 ~~~~~~~~~~
 disabled:3:5
diff --git a/src/unit/engine/__tests__/XUnitTestResultParserTestCase.php b/src/unit/engine/__tests__/XUnitTestResultParserTestCase.php
index 8f96941d..f9bb30a1 100644
--- a/src/unit/engine/__tests__/XUnitTestResultParserTestCase.php
+++ b/src/unit/engine/__tests__/XUnitTestResultParserTestCase.php
@@ -37,6 +37,8 @@ final class XUnitTestResultParserTestCase extends ArcanistTestCase {
     } catch (Exception $e) {
       // OK
     }
+
+    $this->assertEqual(true, true);
   }
 
   public function testInvalidXmlInputFailure() {
@@ -50,6 +52,8 @@ final class XUnitTestResultParserTestCase extends ArcanistTestCase {
     } catch (Exception $e) {
       // OK
     }
+
+    $this->assertEqual(true, true);
   }
 
 }
diff --git a/src/unit/engine/phutil/ArcanistPhutilTestCase.php b/src/unit/engine/phutil/ArcanistPhutilTestCase.php
index 2825ebcd..73234d77 100644
--- a/src/unit/engine/phutil/ArcanistPhutilTestCase.php
+++ b/src/unit/engine/phutil/ArcanistPhutilTestCase.php
@@ -464,6 +464,14 @@ abstract class ArcanistPhutilTestCase {
                 $exceptions);
             }
           }
+
+          if (!$this->assertions) {
+            $this->failTest(
+              pht(
+                'This test case made no assertions. Test cases must make at '.
+                'least one assertion.'));
+          }
+
         } catch (ArcanistPhutilTestTerminatedException $ex) {
           // Continue with the next test.
         } catch (ArcanistPhutilTestSkippedException $ex) {