Add response.content_type checks for JSON to api/v1 request specs (#31981)

spec/requests/api/v1/accounts_spec.rb

@@ -17,6 +17,8 @@ RSpec.describe '/api/v1/accounts' do
       get '/api/v1/accounts', headers: headers, params: { id: [account.id, other_account.id, 123_123] }
 
       expect(response).to have_http_status(200)
+      expect(response.content_type)
+        .to start_with('application/json')
       expect(response.parsed_body).to contain_exactly(
         hash_including(id: account.id.to_s),
         hash_including(id: other_account.id.to_s)
@@ -32,6 +34,8 @@ RSpec.describe '/api/v1/accounts' do
         get "/api/v1/accounts/#{account.id}"
 
         expect(response).to have_http_status(200)
+        expect(response.content_type)
+          .to start_with('application/json')
         expect(response.parsed_body[:id]).to eq(account.id.to_s)
       end
     end
@@ -41,6 +45,8 @@ RSpec.describe '/api/v1/accounts' do
         get '/api/v1/accounts/1'
 
         expect(response).to have_http_status(404)
+        expect(response.content_type)
+          .to start_with('application/json')
         expect(response.parsed_body[:error]).to eq('Record not found')
       end
     end
@@ -57,6 +63,8 @@ RSpec.describe '/api/v1/accounts' do
         subject
 
         expect(response).to have_http_status(200)
+        expect(response.content_type)
+          .to start_with('application/json')
         expect(response.parsed_body[:id]).to eq(account.id.to_s)
       end
 
@@ -80,6 +88,8 @@ RSpec.describe '/api/v1/accounts' do
         subject
 
         expect(response).to have_http_status(200)
+        expect(response.content_type)
+          .to start_with('application/json')
         expect(response.parsed_body[:access_token]).to_not be_blank
 
         user = User.find_by(email: 'hello@world.tld')
@@ -93,6 +103,8 @@ RSpec.describe '/api/v1/accounts' do
         subject
 
         expect(response).to have_http_status(422)
+        expect(response.content_type)
+          .to start_with('application/json')
       end
     end
   end
@@ -113,6 +125,8 @@ RSpec.describe '/api/v1/accounts' do
           subject
 
           expect(response).to have_http_status(200)
+          expect(response.content_type)
+            .to start_with('application/json')
 
           expect(response.parsed_body)
             .to include(
@@ -133,6 +147,8 @@ RSpec.describe '/api/v1/accounts' do
           subject
 
           expect(response).to have_http_status(200)
+          expect(response.content_type)
+            .to start_with('application/json')
 
           expect(response.parsed_body)
             .to include(
@@ -203,6 +219,8 @@ RSpec.describe '/api/v1/accounts' do
       subject
 
       expect(response).to have_http_status(200)
+      expect(response.content_type)
+        .to start_with('application/json')
       expect(user.account.following?(other_account)).to be false
     end
 
@@ -225,6 +243,8 @@ RSpec.describe '/api/v1/accounts' do
       subject
 
       expect(response).to have_http_status(200)
+      expect(response.content_type)
+        .to start_with('application/json')
       expect(user.account.followed_by?(other_account)).to be false
     end
 
@@ -247,6 +267,8 @@ RSpec.describe '/api/v1/accounts' do
       subject
 
       expect(response).to have_http_status(200)
+      expect(response.content_type)
+        .to start_with('application/json')
       expect(user.account.following?(other_account)).to be false
       expect(user.account.blocking?(other_account)).to be true
     end
@@ -270,6 +292,8 @@ RSpec.describe '/api/v1/accounts' do
       subject
 
       expect(response).to have_http_status(200)
+      expect(response.content_type)
+        .to start_with('application/json')
       expect(user.account.blocking?(other_account)).to be false
     end
 
@@ -292,6 +316,8 @@ RSpec.describe '/api/v1/accounts' do
       subject
 
       expect(response).to have_http_status(200)
+      expect(response.content_type)
+        .to start_with('application/json')
       expect(user.account.following?(other_account)).to be true
       expect(user.account.muting?(other_account)).to be true
       expect(user.account.muting_notifications?(other_account)).to be true
@@ -316,6 +342,8 @@ RSpec.describe '/api/v1/accounts' do
       subject
 
       expect(response).to have_http_status(200)
+      expect(response.content_type)
+        .to start_with('application/json')
       expect(user.account.following?(other_account)).to be true
       expect(user.account.muting?(other_account)).to be true
       expect(user.account.muting_notifications?(other_account)).to be false
@@ -340,6 +368,8 @@ RSpec.describe '/api/v1/accounts' do
       subject
 
       expect(response).to have_http_status(200)
+      expect(response.content_type)
+        .to start_with('application/json')
       expect(user.account.following?(other_account)).to be true
       expect(user.account.muting?(other_account)).to be true
       expect(user.account.muting_notifications?(other_account)).to be true
@@ -364,6 +394,8 @@ RSpec.describe '/api/v1/accounts' do
       subject
 
       expect(response).to have_http_status(200)
+      expect(response.content_type)
+        .to start_with('application/json')
       expect(user.account.muting?(other_account)).to be false
     end