Use body_as_json directly instead of via local var assignment (#31696)

spec/requests/api/v2/filters/keywords_spec.rb

@@ -42,9 +42,11 @@ RSpec.describe 'API V2 Filters Keywords' do
     it 'creates a filter', :aggregate_failures do
       expect(response).to have_http_status(200)
 
-      json = body_as_json
-      expect(json[:keyword]).to eq 'magic'
-      expect(json[:whole_word]).to be false
+      expect(body_as_json)
+        .to include(
+          keyword: 'magic',
+          whole_word: false
+        )
 
       filter = user.account.custom_filters.first
       expect(filter).to_not be_nil
@@ -71,9 +73,11 @@ RSpec.describe 'API V2 Filters Keywords' do
     it 'responds with the keyword', :aggregate_failures do
       expect(response).to have_http_status(200)
 
-      json = body_as_json
-      expect(json[:keyword]).to eq 'foo'
-      expect(json[:whole_word]).to be false
+      expect(body_as_json)
+        .to include(
+          keyword: 'foo',
+          whole_word: false
+        )
     end
 
     context "when trying to access another user's filter keyword" do

spec/requests/api/v2/filters/statuses_spec.rb

@@ -43,8 +43,10 @@ RSpec.describe 'API V2 Filters Statuses' do
     it 'creates a filter', :aggregate_failures do
       expect(response).to have_http_status(200)
 
-      json = body_as_json
-      expect(json[:status_id]).to eq status.id.to_s
+      expect(body_as_json)
+        .to include(
+          status_id: status.id.to_s
+        )
 
       filter = user.account.custom_filters.first
       expect(filter).to_not be_nil
@@ -71,8 +73,10 @@ RSpec.describe 'API V2 Filters Statuses' do
     it 'responds with the filter', :aggregate_failures do
       expect(response).to have_http_status(200)
 
-      json = body_as_json
-      expect(json[:status_id]).to eq status_filter.status_id.to_s
+      expect(body_as_json)
+        .to include(
+          status_id: status_filter.status.id.to_s
+        )
     end
 
     context "when trying to access another user's filter keyword" do

spec/requests/api/v2/filters_spec.rb

@@ -58,12 +58,15 @@ RSpec.describe 'Filters' do
       it 'returns a filter with keywords', :aggregate_failures do
         subject
 
-        json = body_as_json
-
-        expect(json[:title]).to eq 'magic'
-        expect(json[:filter_action]).to eq 'hide'
-        expect(json[:context]).to eq ['home']
-        expect(json[:keywords].map { |keyword| keyword.slice(:keyword, :whole_word) }).to match [{ keyword: 'magic', whole_word: true }]
+        expect(body_as_json)
+          .to include(
+            title: 'magic',
+            filter_action: 'hide',
+            context: %w(home),
+            keywords: contain_exactly(
+              include(keyword: 'magic', whole_word: true)
+            )
+          )
       end
 
       it 'creates a filter', :aggregate_failures do