add specs for categories.

1 files changed, 23 insertions, 0 deletions

diff --git a/spec/models/category_spec.rb b/spec/models/category_spec.rb
new file mode 100644
index 00000000..0561ad0e
--- /dev/null
+++ b/spec/models/category_spec.rb
@@ -0,0 +1,23 @@
+require 'rails_helper'
+
+describe Category do
+  describe ".by_slug" do
+    let!(:category) { create(:category, slug: 'cookies') }
+    let!(:category) { create(:category, slug: 'cup-cakes') }
+    let!(:category) { create(:category, slug: 'cakes') }
+
+    it 'finds by slug' do
+      expect(Category.by_slug('cakes')).to eql(category)
+      expect(Category.by_slug('CAKES')).to eql(category)
+      expect(Category.by_slug('Cakes')).to eql(category)
+    end
+  end
+
+  describe "#to_param" do
+    subject { Category.new(name: 'The Cakes', slug: 'cakes') }
+
+    it 'returns the slug as the id' do
+      expect(subject.to_param).to eql('cakes')
+    end
+  end
+end