add tests for rails blog app

test/truffle/ecosystem/blog.sh

@@ -0,0 +1,78 @@
+#!/usr/bin/env bash
+
+# get the absolute path of the executable and resolve symlinks
+SELF_PATH=$(cd "$(dirname "$0")" && pwd -P)/$(basename "$0")
+while [ -h "$SELF_PATH" ]; do
+  # 1) cd to directory of the symlink
+  # 2) cd to the directory of where the symlink points
+  # 3) get the pwd
+  # 4) append the basename
+  DIR=$(dirname "$SELF_PATH")
+  SYM=$(readlink "$SELF_PATH")
+  SELF_PATH=$(cd "$DIR" && cd "$(dirname "$SYM")" && pwd)/$(basename "$SYM")
+done
+
+ecosystem=$(dirname "$SELF_PATH")
+truffle=$(dirname "$ecosystem")
+test=$(dirname "$truffle")
+home=$(dirname "$test")
+
+function jt {
+  ruby "${home}/tool/jt.rb" "$@"
+}
+
+function truffleruby {
+  jt ruby -S "$@"
+}
+
+set -xe
+
+jt gem-test-pack
+truffleruby gem install truffleruby-gem-test-pack/gem-cache/bundler-1.16.5.gem --local
+
+# backup bin/rake, which gets overwritten
+cp bin/rake bin/rake-original
+
+cd test/truffle/ecosystem/blog
+
+truffleruby bundle config --local cache_path ../../../../truffleruby-gem-test-pack/gem-cache
+truffleruby bundle config --local without postgresql mysql
+truffleruby bundle config --local build.nokogiri --use-system-libraries
+
+truffleruby bundle install --local --no-cache
+
+truffleruby bin/rails db:setup
+truffleruby bin/rails log:clear tmp:clear
+
+truffleruby bin/rails test
+
+if [ -f tmp/pids/server.pid ]
+then
+    kill "$(cat tmp/pids/server.pid)" || true
+    rm tmp/pids/server.pid
+fi
+
+port=57085
+truffleruby bundle exec bin/rails server --port="$port" &
+
+function kill_server {
+  kill %1
+  kill "$(cat tmp/pids/server.pid)"
+}
+
+set +x
+url="http://localhost:$port/posts.json"
+while ! curl -s "$url";
+do
+    echo -n .
+    sleep 1
+done
+set -x
+
+test "$(curl -s "$url")" = '[]'
+
+kill_server
+
+# put back the original
+cd "$home"
+mv -f bin/rake-original bin/rake

test/truffle/ecosystem/blog/app/controllers/posts_controller.rb

@@ -2,6 +2,11 @@ class PostsController < ApplicationController
 
   def index
     @posts = Post.order(:created_at).all
+
+    respond_to do |format|
+      format.json { render json: @posts }
+      format.html
+    end
   end
 
   def show

test/truffle/ecosystem/blog/test/controllers/posts_controller_test.rb

@@ -0,0 +1,54 @@
+require 'test_helper'
+
+class PostsControllerTest < ActionDispatch::IntegrationTest
+  test "should get index" do
+    get '/posts'
+    assert_response :success
+
+    assert_match /Post 1/, @response.body
+    assert_match /Post 2/, @response.body
+  end
+
+  test "should get show" do
+    get post_path id: 1
+    assert_response :success
+    assert_match /Post 1/, @response.body
+  end
+
+  test "should get new" do
+    get new_post_path
+    assert_response :success
+  end
+
+  test "should post create" do
+    new_body = "= Title\nauthor\n\nBody"
+    post '/posts', params: { body: new_body }
+    assert_equal 3, Post.count
+    assert_redirected_to '/posts/3'
+  end
+
+  test "should delete destroy" do
+    delete post_path id: 1
+    assert_redirected_to action: :index
+    assert_equal Post.all, [Post.find(2)]
+  end
+
+  test "should get edit" do
+    get post_path id: 1
+    assert_response :success
+  end
+
+  test "should put update" do
+    new_body = "= Title\nauthor\n\nBody"
+    put post_path id: 1, body: new_body
+    assert_redirected_to post_path(1)
+    assert_equal Post.find(1).body, new_body
+  end
+
+  test "should delete destroy_all" do
+    delete destroy_all_posts_path
+    assert_redirected_to action: :index
+    assert_predicate Post.all, :empty?
+  end
+
+end

test/truffle/ecosystem/blog/test/fixtures/post.yml

@@ -0,0 +1,18 @@
+# Read about fixtures at http://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+post1:
+  id: 1
+  body: |
+    = Post 1
+    An author
+
+    Body of the post 1.
+
+post2:
+  id: 2
+  body: |
+    = Post 2
+    An author
+
+    Body of the post 2.
+

test/truffle/ecosystem/blog/test/models/post_test.rb

@@ -0,0 +1,19 @@
+require 'test_helper'
+
+class PostTest < ActiveSupport::TestCase
+  test "title is parsed" do
+    assert_equal Post.find(1).title, "Post 1"
+  end
+
+  test "author is parsed" do
+    assert_equal Post.find(1).author, "An author"
+  end
+
+  test "title and author are required" do
+    post = Post.new(body: "")
+    assert_not post.valid?
+    assert_equal post.errors.details,
+                 :title => [{ :error => :blank }],
+                 :author => [{ :error => :blank }]
+  end
+end

tool/jt.rb

@@ -25,7 +25,7 @@
 MRI_TEST_CEXT_DIR = "#{TRUFFLERUBY_DIR}/test/mri/tests/cext-c"
 MRI_TEST_CEXT_LIB_DIR = "#{TRUFFLERUBY_DIR}/.ext/c"
 
-TRUFFLERUBY_GEM_TEST_PACK_VERSION = "965f5e29f433a69557c55bff5832de28710ce31a"
+TRUFFLERUBY_GEM_TEST_PACK_VERSION = "f23314cbf560d8578b0c2cbd972b83575ba93cd5"
 
 JDEBUG_PORT = 51819
 JDEBUG = "-J-agentlib:jdwp=transport=dt_socket,server=y,address=#{JDEBUG_PORT},suspend=y"