add simple blog controller

spec/models/blog_spec.rb

@@ -0,0 +1,82 @@
+require 'rails_helper'
+
+RSpec.describe Post, type: :model do
+
+  describe "creation" do
+    it "ok with valid slug" do
+      post = Post.new("_1993-2-4-title")
+      expect(post).not_to eq nil
+    end
+    it "raises with invalid slug" do
+      expect{Post.new("_1993-4-title")}.to raise_error RuntimeError
+    end
+    it "must start with a year" do
+      expect{Post.new("_no-num-4-title")}.to raise_error RuntimeError
+    end
+    it "must start with a underscore" do
+      expect{Post.new("_no-num-4-title")}.to raise_error RuntimeError
+    end
+  end
+
+  describe "basic api" do
+    before :each do
+      @post = Post.new("_1993-2-4-title")
+    end
+    it "returns title" do
+      expect(@post.title).to eq "title"
+    end
+    it "returns dates" do
+      expect(@post.year).to eq 1993
+      expect(@post.month).to eq 4
+      expect(@post.day).to eq 2
+    end
+    it "returns date" do
+      expect(@post.date).to eq "1993-2-4"
+    end
+    it "returns file_name" do
+      expect(@post.template_name).to eq "1993-2-4-title"
+    end
+  end
+
+  describe "precise api definition" do
+    it "returns whole title" do
+      post = Post.new("_1993-2-4-Multi-word-title")
+      expect(post.title).to eq "Multi word title"
+    end
+    it "returns slug" do
+      post = Post.new("_1993-2-4-Multi-word-title")
+      expect(post.slug).to eq "multi-word-title"
+    end
+    it "returns title without extension if given file name" do
+      post = Post.new("_1993-2-4-title.rb")
+      expect(post.title).to eq "title"
+    end
+    it 'slugs are downcase' do
+      post = Post.new("_1993-2-4-Multi-word-title")
+      slug = post.slug
+      expect(slug.downcase).to eq slug
+    end
+  end
+
+  describe "post list" do
+    before :each do
+      @posts = Post.posts
+      @first = @posts.values.first
+    end
+    it "reads config path" do
+      expect(Post.blog_path.include?("app")).to eq true
+    end
+    it "first post has content" do
+      expect(@posts.values.first).not_to be_nil
+      expect(@posts.values.first.content.length).to be > 10
+    end
+    it "return a list of posts" do
+      expect(@posts.class).to eq Hash
+      expect(@posts.length).to be > 0
+    end
+    it "post template exists" do
+      file = Post.blog_path + "/_" + @first.template_name + ".haml"
+      expect(File.exists?(file)).to eq true
+    end
+  end
+end