Add specs

Author: pawurb

activerecord-analyze.gemspec

@@ -16,4 +16,7 @@ Gem::Specification.new do |gem|
   gem.require_paths = ["lib"]
   gem.license       = "MIT"
   gem.add_dependency "rails", ">= 5.1.0"
+  gem.add_development_dependency "rake"
+  gem.add_development_dependency "pg"
+  gem.add_development_dependency "rspec"
 end

docker-compose.yml.sample

@@ -0,0 +1,11 @@
+version: '3'
+
+services:
+  postgres:
+    image: postgres:11.5-alpine
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_DB: ruby-pg-extras-test
+      POSTGRES_PASSWORD: secret
+    ports:
+      - '5432:5432'

spec/main_spec.rb

@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+require "migrations/create_users_migration.rb"
+
+class User < ActiveRecord::Base; end
+
+describe "ActiveRecord analyze" do
+  before(:all) do
+    ActiveRecord::Base.establish_connection(
+      ENV.fetch("DATABASE_URL")
+    )
+
+    @schema_migration = ActiveRecord::Base.connection.schema_migration
+    ActiveRecord::Migrator.new(:up, [CreateUsers.new], @schema_migration).migrate
+  end
+
+  describe "no opts" do
+    it "works" do
+      expect do
+        User.all.analyze
+      end.not_to raise_error
+    end
+  end
+
+  describe "format json" do
+    it "works" do
+      result = User.all.analyze(format: :json)
+      expect(JSON.parse(result)[0].keys.sort).to eq [
+        "Execution Time", "Plan", "Planning Time", "Triggers"
+      ]
+    end
+  end
+end

spec/migrations/create_users_migration.rb

@@ -0,0 +1,10 @@
+class CreateUsers < ActiveRecord::Migration::Current
+  def change
+    create_table :users do |t|
+      t.string :name
+      t.string :email
+
+      t.timestamps
+    end
+  end
+end

spec/spec_helper.rb

@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+require 'rubygems'
+require "active_record/railtie"
+require 'bundler/setup'
+require_relative '../lib/activerecord-analyze'
+
+ENV["DATABASE_URL"] ||= "postgresql://postgres:secret@localhost:5432/activerecord-analyze-test"