add admin suppliers controller specs

spec/controllers/admin/suppliers_controller_spec.rb

@@ -0,0 +1,135 @@
+# encoding: UTF-8
+require 'spec_helper'
+
+describe Admin::SuppliersController do
+  before :each do
+    @administrator = Administrator.find_by_email('administrator@qwaiter.com') || Administrator.create(email: 'administrator@qwaiter.com', password: 'secret')
+    sign_in @administrator
+  end
+
+  describe "GET #index" do
+    it "populates an array of suppliers" do
+      supplier = create :supplier
+      get :index
+      assigns(:suppliers).should eq([supplier])
+    end
+
+    it "should render without errors when no objects are present" do
+      get :index
+      expect{ render_template :index }.not_to raise_error
+    end
+
+    it "renders the :index view" do
+      get :index
+      response.should render_template :index
+    end
+  end
+
+  describe "GET #show" do
+    it "assigns the requested supplier to @supplier" do
+      supplier = create :supplier
+      get :show, id: supplier
+      assigns(:supplier).should eq(supplier)
+    end
+
+    it "renders the #show view" do
+      supplier = create :supplier
+      get :show, id: supplier
+      response.should render_template :show
+    end
+  end
+
+  describe "GET #new" do
+    it "assigns a new supplier to @supplier" do
+      get :new
+      assigns(:supplier).should be_a Supplier
+    end
+
+    it "renders the #show view" do
+      get :new
+      response.should render_template :new
+    end
+  end
+
+  describe "POST #create" do
+    context "with valid attributes" do
+      it "creates a new supplier" do
+        expect{
+          post :create, supplier: attributes_for(:supplier)
+        }.to change(Supplier, :count).by(1)
+      end
+
+      it "redirects to the new supplier" do
+        post :create, supplier: attributes_for(:supplier)
+        response.should redirect_to [:admin, Supplier.last]
+      end
+    end
+
+    context "with invalid attributes" do
+      it "does not save the new supplier" do
+        expect{
+          post :create, supplier: {}
+        }.to_not change(Supplier, :count)
+      end
+
+      it "re-renders the new method" do
+        post :create, supplier: {}
+        response.should render_template :new
+      end
+    end
+  end
+
+  describe 'PUT update' do
+    before :each do
+      @supplier = create :supplier
+    end
+
+    context "valid attributes" do
+      it "located the requested supplier" do
+        put :update, id: @supplier, supplier: attributes_for(:supplier)
+        @supplier.reload
+        assigns(:supplier).should eq(@supplier)
+      end
+
+      it "changes @supplier's attributes" do
+        put :update, id: @supplier, supplier: attributes_for(:supplier, name: "ChangedByTest")
+        @supplier.reload
+        @supplier.name.should eq("ChangedByTest")
+      end
+
+      it "redirects to the updated supplier" do
+        put :update, id: @supplier, supplier: attributes_for(:supplier)
+        response.should redirect_to [:admin, @supplier]
+      end
+    end
+
+    context "invalid attributes" do
+      it "locates the requested supplier" do
+        put :update, id: @supplier, supplier: {name: ''}
+        assigns(:supplier).should eq(@supplier)
+      end
+
+      it "re-renders the edit method" do
+        put :update, id: @supplier, supplier: {name: ''}
+        response.should render_template :edit
+      end
+    end
+  end
+
+  describe 'DELETE destroy' do
+    before :each do
+      @supplier = create :supplier
+    end
+
+    it "deletes the supplier" do
+      expect{
+        delete :destroy, id: @supplier        
+      }.to change(Supplier, :count).by(-1)
+    end
+
+    it "redirects to suppliers#index" do
+      delete :destroy, id: @supplier
+      response.should redirect_to [:admin, :suppliers]
+    end
+  end
+end