Add tests for mute rules

spec/controllers/settings/mutes_controller_spec.rb

@@ -17,4 +17,36 @@ describe Settings::MutesController, type: :controller do
       end
     end
   end
+
+  describe "#create" do
+    subject { post :create, params: { muted_phrase: "foo" } }
+
+    context "user signed in" do
+      let(:user) { FactoryBot.create(:user) }
+
+      before { sign_in user }
+
+      it "creates a mute rule" do
+        expect { subject }.to(change { MuteRule.count }.by(1))
+      end
+    end
+  end
+
+  describe "#destroy" do
+    subject { delete :destroy, params: }
+
+    context "user signed in" do
+      let(:user) { FactoryBot.create(:user) }
+      let(:rule) { MuteRule.create(user:, muted_phrase: "foo") }
+      let(:params) { { id: rule.id } }
+
+      before { sign_in user }
+
+      it "destroys a mute rule" do
+        subject
+
+        expect(MuteRule.exists?(rule.id)).to eq(false)
+      end
+    end
+  end
 end