Verbose fail message when no Exception caught (#4933)

Author: Slamdunk

src/Codeception/Module/Asserts.php

@@ -465,8 +465,8 @@ public function expectException($exception, $callback)
                 ));
             }
             $this->assertTrue(true); // increment assertion counter
-             return;
+            return;
         }
-        $this->fail("Expected exception to be thrown, but nothing was caught");
+        $this->fail("Expected exception of $class to be thrown, but nothing was caught");
     }
 }

tests/unit/Codeception/Module/AssertsTest.php

@@ -53,4 +53,15 @@ public function testExceptionFails()
             throw new Exception('here', 2);
         });
     }
+
+    /**
+     * @expectedException PHPUnit\Framework\AssertionFailedError
+     * @expectedExceptionMessageRegExp /RuntimeException/
+     */
+    public function testOutputExceptionTimeWhenNothingCaught()
+    {
+        $module = new \Codeception\Module\Asserts(make_container());
+        $module->expectException(RuntimeException::class, function () {
+        });
+    }
 }