Allow call `assert_enqueued_with` and `assert_enqueued_email_with` with no block

Example of `assert_enqueued_with` with no block
```ruby
def test_assert_enqueued_with
  MyJob.perform_later(1,2,3)
  assert_enqueued_with(job: MyJob, args: [1,2,3], queue: 'low')

  MyJob.set(wait_until: Date.tomorrow.noon).perform_later
  assert_enqueued_with(job: MyJob, at: Date.tomorrow.noon)
end
```

Example of `assert_enqueued_email_with` with no block:
```ruby
def test_email
  ContactMailer.welcome.deliver_later
  assert_enqueued_email_with ContactMailer, :welcome
end

def test_email_with_arguments
  ContactMailer.welcome("Hello", "Goodbye").deliver_later
  assert_enqueued_email_with ContactMailer, :welcome, args: ["Hello", "Goodbye"]
end
```

Related to #33243

2 files changed, 46 insertions, 2 deletions

diff --git a/actionmailer/CHANGELOG.md b/actionmailer/CHANGELOG.md
index 88e8a36eaa..1468a89e96 100644
--- a/actionmailer/CHANGELOG.md
+++ b/actionmailer/CHANGELOG.md
@@ -1,3 +1,20 @@
+*   Allow call `assert_enqueued_email_with` with no block.
+
+    Example:
+    ```
+    def test_email
+      ContactMailer.welcome.deliver_later
+      assert_enqueued_email_with ContactMailer, :welcome
+    end
+
+    def test_email_with_arguments
+      ContactMailer.welcome("Hello", "Goodbye").deliver_later
+      assert_enqueued_email_with ContactMailer, :welcome, args: ["Hello", "Goodbye"]
+    end
+    ```
+
+    *bogdanvlviv*
+
 *   Ensure mail gem is eager autoloaded when eager load is true to prevent thread deadlocks.
 
     *Samuel Cochran*
diff --git a/actionmailer/test/test_helper_test.rb b/actionmailer/test/test_helper_test.rb
index 8fdc687a8b..dcea23aabb 100644
--- a/actionmailer/test/test_helper_test.rb
+++ b/actionmailer/test/test_helper_test.rb
@@ -252,7 +252,16 @@ class TestHelperMailerTest < ActionMailer::TestCase
     end
   end
 
-  def test_assert_enqueued_email_with_args
+  def test_assert_enqueued_email_with_with_no_block
+    assert_nothing_raised do
+      silence_stream($stdout) do
+        TestHelperMailer.test.deliver_later
+        assert_enqueued_email_with TestHelperMailer, :test
+      end
+    end
+  end
+
+  def test_assert_enqueued_email_with_with_args
     assert_nothing_raised do
       assert_enqueued_email_with TestHelperMailer, :test_args, args: ["some_email", "some_name"] do
         silence_stream($stdout) do
@@ -262,7 +271,16 @@ class TestHelperMailerTest < ActionMailer::TestCase
     end
   end
 
-  def test_assert_enqueued_email_with_parameterized_args
+  def test_assert_enqueued_email_with_with_no_block_with_args
+    assert_nothing_raised do
+      silence_stream($stdout) do
+        TestHelperMailer.test_args("some_email", "some_name").deliver_later
+        assert_enqueued_email_with TestHelperMailer, :test_args, args: ["some_email", "some_name"]
+      end
+    end
+  end
+
+  def test_assert_enqueued_email_with_with_parameterized_args
     assert_nothing_raised do
       assert_enqueued_email_with TestHelperMailer, :test_parameter_args, args: { all: "good" } do
         silence_stream($stdout) do
@@ -271,6 +289,15 @@ class TestHelperMailerTest < ActionMailer::TestCase
       end
     end
   end
+
+  def test_assert_enqueued_email_with_with_no_block_wiht_parameterized_args
+    assert_nothing_raised do
+      silence_stream($stdout) do
+        TestHelperMailer.with(all: "good").test_parameter_args.deliver_later
+        assert_enqueued_email_with TestHelperMailer, :test_parameter_args, args: { all: "good" }
+      end
+    end
+  end
 end
 
 class AnotherTestHelperMailerTest < ActionMailer::TestCase