diff --git a/spec/models/concerns/account_interactions_spec.rb b/spec/models/concerns/account_interactions_spec.rb
index a468549d831..2b8c95d709c 100644
--- a/spec/models/concerns/account_interactions_spec.rb
+++ b/spec/models/concerns/account_interactions_spec.rb
@@ -1,6 +1,554 @@
 require 'rails_helper'
 
 describe AccountInteractions do
+  let(:account)            { Fabricate(:account, username: 'account') }
+  let(:account_id)         { account.id }
+  let(:account_ids)        { [account_id] }
+  let(:target_account)     { Fabricate(:account, username: 'target') }
+  let(:target_account_id)  { target_account.id }
+  let(:target_account_ids) { [target_account_id] }
+
+  describe '.following_map' do
+    subject { Account.following_map(target_account_ids, account_id) }
+
+    context 'account with Follow' do
+      it 'returns { target_account_id => true }' do
+        Fabricate(:follow, account: account, target_account: target_account)
+        is_expected.to eq(target_account_id => true)
+      end
+    end
+
+    context 'account without Follow' do
+      it 'returns {}' do
+        is_expected.to eq({})
+      end
+    end
+  end
+
+  describe '.followed_by_map' do
+    subject { Account.followed_by_map(target_account_ids, account_id) }
+
+    context 'account with Follow' do
+      it 'returns { target_account_id => true }' do
+        Fabricate(:follow, account: target_account, target_account: account)
+        is_expected.to eq(target_account_id => true)
+      end
+    end
+
+    context 'account without Follow' do
+      it 'returns {}' do
+        is_expected.to eq({})
+      end
+    end
+  end
+
+  describe '.blocking_map' do
+    subject { Account.blocking_map(target_account_ids, account_id) }
+
+    context 'account with Block' do
+      it 'returns { target_account_id => true }' do
+        Fabricate(:block, account: account, target_account: target_account)
+        is_expected.to eq(target_account_id => true)
+      end
+    end
+
+    context 'account without Block' do
+      it 'returns {}' do
+        is_expected.to eq({})
+      end
+    end
+  end
+
+  describe '.muting_map' do
+    subject { Account.muting_map(target_account_ids, account_id) }
+
+    context 'account with Mute' do
+      before do
+        Fabricate(:mute, target_account: target_account, account: account, hide_notifications: hide)
+      end
+
+      context 'if Mute#hide_notifications?' do
+        let(:hide) { true }
+
+        it 'returns { target_account_id => { notifications: true } }' do
+          is_expected.to eq(target_account_id => { notifications: true })
+        end
+      end
+
+      context 'unless Mute#hide_notifications?' do
+        let(:hide) { false }
+
+        it 'returns { target_account_id => { notifications: false } }' do
+          is_expected.to eq(target_account_id => { notifications: false })
+        end
+      end
+    end
+
+    context 'account without Mute' do
+      it 'returns {}' do
+        is_expected.to eq({})
+      end
+    end
+  end
+
+  describe '#follow!' do
+    it 'creates and returns Follow' do
+      expect do
+        expect(account.follow!(target_account)).to be_kind_of Follow
+      end.to change { account.following.count }.by 1
+    end
+  end
+
+  describe '#block' do
+    it 'creates and returns Block' do
+      expect do
+        expect(account.block!(target_account)).to be_kind_of Block
+      end.to change { account.block_relationships.count }.by 1
+    end
+  end
+
+  describe '#mute!' do
+    context 'Mute does not exist yet' do
+      context 'arg :notifications is nil' do
+        let(:arg_notifications) { nil }
+
+        it 'creates Mute, and returns nil' do
+          expect do
+            expect(account.mute!(target_account, notifications: arg_notifications)).to be nil
+          end.to change { account.mute_relationships.count }.by 1
+        end
+      end
+
+      context 'arg :notifications is false' do
+        let(:arg_notifications) { false }
+
+        it 'creates Mute, and returns nil' do
+          expect do
+            expect(account.mute!(target_account, notifications: arg_notifications)).to be nil
+          end.to change { account.mute_relationships.count }.by 1
+        end
+      end
+
+      context 'arg :notifications is true' do
+        let(:arg_notifications) { true }
+
+        it 'creates Mute, and returns nil' do
+          expect do
+            expect(account.mute!(target_account, notifications: arg_notifications)).to be nil
+          end.to change { account.mute_relationships.count }.by 1
+        end
+      end
+    end
+
+    context 'Mute already exists' do
+      before do
+        account.mute_relationships << mute
+      end
+
+      let(:mute) do
+        Fabricate(:mute,
+                  account:            account,
+                  target_account:     target_account,
+                  hide_notifications: hide_notifications)
+      end
+
+      context 'mute.hide_notifications is true' do
+        let(:hide_notifications) { true }
+
+        context 'arg :notifications is nil' do
+          let(:arg_notifications) { nil }
+
+          it 'returns nil without updating mute.hide_notifications' do
+            expect do
+              expect(account.mute!(target_account, notifications: arg_notifications)).to be nil
+              mute = account.mute_relationships.find_by(target_account: target_account)
+              expect(mute.hide_notifications?).to be true
+            end
+          end
+        end
+
+        context 'arg :notifications is false' do
+          let(:arg_notifications) { false }
+
+          it 'returns true, and updates mute.hide_notifications false' do
+            expect do
+              expect(account.mute!(target_account, notifications: arg_notifications)).to be true
+              mute = account.mute_relationships.find_by(target_account: target_account)
+              expect(mute.hide_notifications?).to be false
+            end
+          end
+        end
+
+        context 'arg :notifications is true' do
+          let(:arg_notifications) { true }
+
+          it 'returns nil without updating mute.hide_notifications' do
+            expect do
+              expect(account.mute!(target_account, notifications: arg_notifications)).to be nil
+              mute = account.mute_relationships.find_by(target_account: target_account)
+              expect(mute.hide_notifications?).to be true
+            end
+          end
+        end
+      end
+
+      context 'mute.hide_notifications is false' do
+        let(:hide_notifications) { false }
+
+        context 'arg :notifications is nil' do
+          let(:arg_notifications) { nil }
+
+          it 'returns true, and updates mute.hide_notifications true' do
+            expect do
+              expect(account.mute!(target_account, notifications: arg_notifications)).to be true
+              mute = account.mute_relationships.find_by(target_account: target_account)
+              expect(mute.hide_notifications?).to be true
+            end
+          end
+        end
+
+        context 'arg :notifications is false' do
+          let(:arg_notifications) { false }
+
+          it 'returns nil without updating mute.hide_notifications' do
+            expect do
+              expect(account.mute!(target_account, notifications: arg_notifications)).to be nil
+              mute = account.mute_relationships.find_by(target_account: target_account)
+              expect(mute.hide_notifications?).to be false
+            end
+          end
+        end
+
+        context 'arg :notifications is true' do
+          let(:arg_notifications) { true }
+
+          it 'returns true, and updates mute.hide_notifications true' do
+            expect do
+              expect(account.mute!(target_account, notifications: arg_notifications)).to be true
+              mute = account.mute_relationships.find_by(target_account: target_account)
+              expect(mute.hide_notifications?).to be true
+            end
+          end
+        end
+      end
+    end
+  end
+
+  describe '#mute_conversation!' do
+    let(:conversation) { Fabricate(:conversation) }
+
+    subject { account.mute_conversation!(conversation) }
+
+    it 'creates and returns ConversationMute' do
+      expect do
+        is_expected.to be_kind_of ConversationMute
+      end.to change { account.conversation_mutes.count }.by 1
+    end
+  end
+
+  describe '#block_domain!' do
+    let(:domain_block) { Fabricate(:domain_block) }
+
+    subject { account.block_domain!(domain_block) }
+
+    it 'creates and returns AccountDomainBlock' do
+      expect do
+        is_expected.to be_kind_of AccountDomainBlock
+      end.to change { account.domain_blocks.count }.by 1
+    end
+  end
+
+  describe '#unfollow!' do
+    subject { account.unfollow!(target_account) }
+
+    context 'following target_account' do
+      it 'returns destroyed Follow' do
+        account.active_relationships.create(target_account: target_account)
+        is_expected.to be_kind_of Follow
+        expect(subject).to be_destroyed
+      end
+    end
+
+    context 'not following target_account' do
+      it 'returns nil' do
+        is_expected.to be_nil
+      end
+    end
+  end
+
+  describe '#unblock!' do
+    subject { account.unblock!(target_account) }
+
+    context 'blocking target_account' do
+      it 'returns destroyed Block' do
+        account.block_relationships.create(target_account: target_account)
+        is_expected.to be_kind_of Block
+        expect(subject).to be_destroyed
+      end
+    end
+
+    context 'not blocking target_account' do
+      it 'returns nil' do
+        is_expected.to be_nil
+      end
+    end
+  end
+
+  describe '#unmute!' do
+    subject { account.unmute!(target_account) }
+
+    context 'muting target_account' do
+      it 'returns destroyed Mute' do
+        account.mute_relationships.create(target_account: target_account)
+        is_expected.to be_kind_of Mute
+        expect(subject).to be_destroyed
+      end
+    end
+
+    context 'not muting target_account' do
+      it 'returns nil' do
+        is_expected.to be_nil
+      end
+    end
+  end
+
+  describe '#unmute_conversation!' do
+    let(:conversation) { Fabricate(:conversation) }
+
+    subject { account.unmute_conversation!(conversation) }
+
+    context 'muting the conversation' do
+      it 'returns destroyed ConversationMute' do
+        account.conversation_mutes.create(conversation: conversation)
+        is_expected.to be_kind_of ConversationMute
+        expect(subject).to be_destroyed
+      end
+    end
+
+    context 'not muting the conversation' do
+      it 'returns nil' do
+        is_expected.to be nil
+      end
+    end
+  end
+
+  describe '#unblock_domain!' do
+    let(:domain) { 'example.com' }
+
+    subject { account.unblock_domain!(domain) }
+
+    context 'blocking the domain' do
+      it 'returns destroyed AccountDomainBlock' do
+        account_domain_block = Fabricate(:account_domain_block, domain: domain)
+        account.domain_blocks << account_domain_block
+        is_expected.to be_kind_of AccountDomainBlock
+        expect(subject).to be_destroyed
+      end
+    end
+
+    context 'unblocking the domain' do
+      it 'returns nil' do
+        is_expected.to be_nil
+      end
+    end
+  end
+
+  describe '#following?' do
+    subject { account.following?(target_account) }
+
+    context 'following target_account' do
+      it 'returns true' do
+        account.active_relationships.create(target_account: target_account)
+        is_expected.to be true
+      end
+    end
+
+    context 'not following target_account' do
+      it 'returns false' do
+        is_expected.to be false
+      end
+    end
+  end
+
+  describe '#blocking?' do
+    subject { account.blocking?(target_account) }
+
+    context 'blocking target_account' do
+      it 'returns true' do
+        account.block_relationships.create(target_account: target_account)
+        is_expected.to be true
+      end
+    end
+
+    context 'not blocking target_account' do
+      it 'returns false' do
+        is_expected.to be false
+      end
+    end
+  end
+
+  describe '#domain_blocking?' do
+    let(:domain)               { 'example.com' }
+
+    subject { account.domain_blocking?(domain) }
+
+    context 'blocking the domain' do
+      it' returns true' do
+        account_domain_block = Fabricate(:account_domain_block, domain: domain)
+        account.domain_blocks << account_domain_block
+        is_expected.to be true
+      end
+    end
+
+    context 'not blocking the domain' do
+      it 'returns false' do
+        is_expected.to be false
+      end
+    end
+  end
+
+  describe '#muting?' do
+    subject { account.muting?(target_account) }
+
+    context 'muting target_account' do
+      it 'returns true' do
+        mute = Fabricate(:mute, account: account, target_account: target_account)
+        account.mute_relationships << mute
+        is_expected.to be true
+      end
+    end
+
+    context 'not muting target_account' do
+      it 'returns false' do
+        is_expected.to be false
+      end
+    end
+  end
+
+  describe '#muting_conversation?' do
+    let(:conversation) { Fabricate(:conversation) }
+
+    subject { account.muting_conversation?(conversation) }
+
+    context 'muting the conversation' do
+      it 'returns true' do
+        account.conversation_mutes.create(conversation: conversation)
+        is_expected.to be true
+      end
+    end
+
+    context 'not muting the conversation' do
+      it 'returns false' do
+        is_expected.to be false
+      end
+    end
+  end
+
+  describe '#muting_notifications?' do
+    before do
+      mute = Fabricate(:mute, target_account: target_account, account: account, hide_notifications: hide)
+      account.mute_relationships << mute
+    end
+
+    subject { account.muting_notifications?(target_account) }
+
+    context 'muting notifications of target_account' do
+      let(:hide) { true }
+
+      it 'returns true' do
+        is_expected.to be true
+      end
+    end
+
+    context 'not muting notifications of target_account' do
+      let(:hide) { false }
+
+      it 'returns false' do
+        is_expected.to be false
+      end
+    end
+  end
+
+  describe '#requested?' do
+    subject { account.requested?(target_account) }
+
+    context 'requested by target_account' do
+      it 'returns true' do
+        Fabricate(:follow_request, account: account, target_account: target_account)
+        is_expected.to be true
+      end
+    end
+
+    context 'not requested by target_account' do
+      it 'returns false' do
+        is_expected.to be false
+      end
+    end
+  end
+
+  describe '#favourited?' do
+    let(:status) { Fabricate(:status, account: account, favourites: favourites) }
+
+    subject { account.favourited?(status) }
+
+    context 'favorited' do
+      let(:favourites) { [Fabricate(:favourite, account: account)] }
+
+      it 'returns true' do
+        is_expected.to be true
+      end
+    end
+
+    context 'not favorited' do
+      let(:favourites) { [] }
+
+      it 'returns false' do
+        is_expected.to be false
+      end
+    end
+  end
+
+  describe '#reblogged?' do
+    let(:status) { Fabricate(:status, account: account, reblogs: reblogs) }
+
+    subject { account.reblogged?(status) }
+
+    context 'reblogged' do
+      let(:reblogs) { [Fabricate(:status, account: account)] }
+
+      it 'returns true' do
+        is_expected.to be true
+      end
+    end
+
+    context 'not reblogged' do
+      let(:reblogs) { [] }
+
+      it 'returns false' do
+        is_expected.to be false
+      end
+    end
+  end
+
+  describe '#pinned?' do
+    let(:status) { Fabricate(:status, account: account) }
+
+    subject { account.pinned?(status) }
+
+    context 'pinned' do
+      it 'returns true' do
+        Fabricate(:status_pin, account: account, status: status)
+        is_expected.to be true
+      end
+    end
+
+    context 'not pinned' do
+      it 'returns false' do
+        is_expected.to be false
+      end
+    end
+  end
+
   describe 'muting an account' do
     let(:me) { Fabricate(:account, username: 'Me') }
     let(:you) { Fabricate(:account, username: 'You') }