Reduce `RSpec/MultipleExpectations` in media_attachment spec (#29228)

spec/models/media_attachment_spec.rb

@@ -91,20 +91,15 @@ RSpec.describe MediaAttachment, :paperclip_processing do
     end
 
     it 'saves media attachment with correct file metadata' do
-      expect(media.persisted?).to be true
-      expect(media.file).to_not be_nil
-
-      # completes processing
-      expect(media.processing_complete?).to be true
-
-      # sets type
-      expect(media.type).to eq 'image'
-
-      # sets content type
-      expect(media.file_content_type).to eq content_type
-
-      # sets file extension
-      expect(media.file_file_name).to end_with extension
+      expect(media)
+        .to be_persisted
+        .and be_processing_complete
+        .and have_attributes(
+          file: be_present,
+          type: eq('image'),
+          file_content_type: eq(content_type),
+          file_file_name: end_with(extension)
+        )
 
       # Rack::Mime (used by PublicFileServerMiddleware) recognizes file extension
       expect(Rack::Mime.mime_type(extension, nil)).to eq content_type
@@ -112,17 +107,23 @@ RSpec.describe MediaAttachment, :paperclip_processing do
 
     it 'saves media attachment with correct size metadata' do
       # strips original file name
-      expect(media.file_file_name).to_not start_with '600x400'
+      expect(media.file_file_name)
+        .to_not start_with '600x400'
 
-      # sets meta for original
-      expect(media.file.meta['original']['width']).to eq 600
-      expect(media.file.meta['original']['height']).to eq 400
-      expect(media.file.meta['original']['aspect']).to eq 1.5
-
-      # sets meta for thumbnail
-      expect(media.file.meta['small']['width']).to eq 588
-      expect(media.file.meta['small']['height']).to eq 392
-      expect(media.file.meta['small']['aspect']).to eq 1.5
+      # sets meta for original and thumbnail
+      expect(media.file.meta.deep_symbolize_keys)
+        .to include(
+          original: include(
+            width: eq(600),
+            height: eq(400),
+            aspect: eq(1.5)
+          ),
+          small: include(
+            width: eq(588),
+            height: eq(392),
+            aspect: eq(1.5)
+          )
+        )
     end
   end