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|
# frozen_string_literal: true
require "isolation/abstract_unit"
module ApplicationTests
class TestTest < ActiveSupport::TestCase
include ActiveSupport::Testing::Isolation
def setup
@old = ENV["PARALLEL_WORKERS"]
ENV["PARALLEL_WORKERS"] = "0"
build_app
end
def teardown
ENV["PARALLEL_WORKERS"] = @old
teardown_app
end
test "simple successful test" do
app_file "test/unit/foo_test.rb", <<-RUBY
require 'test_helper'
class FooTest < ActiveSupport::TestCase
def test_truth
assert true
end
end
RUBY
assert_successful_test_run "unit/foo_test.rb"
end
test "after_run" do
app_file "test/unit/foo_test.rb", <<-RUBY
require 'test_helper'
Minitest.after_run { puts "WORLD" }
Minitest.after_run { puts "HELLO" }
class FooTest < ActiveSupport::TestCase
def test_truth
assert true
end
end
RUBY
result = assert_successful_test_run "unit/foo_test.rb"
assert_equal ["HELLO", "WORLD"], result.scan(/HELLO|WORLD/) # only once and in correct order
end
test "simple failed test" do
app_file "test/unit/foo_test.rb", <<-RUBY
require 'test_helper'
class FooTest < ActiveSupport::TestCase
def test_truth
assert false
end
end
RUBY
assert_unsuccessful_run "unit/foo_test.rb", "Failure:\nFooTest#test_truth"
end
test "integration test" do
controller "posts", <<-RUBY
class PostsController < ActionController::Base
end
RUBY
app_file "app/views/posts/index.html.erb", <<-HTML
Posts#index
HTML
app_file "test/integration/posts_test.rb", <<-RUBY
require 'test_helper'
class PostsTest < ActionDispatch::IntegrationTest
def test_index
get '/posts'
assert_response :success
assert_includes @response.body, 'Posts#index'
end
end
RUBY
assert_successful_test_run "integration/posts_test.rb"
end
test "enable full backtraces on test failures" do
app_file "test/unit/failing_test.rb", <<-RUBY
require 'test_helper'
class FailingTest < ActiveSupport::TestCase
def test_failure
raise "fail"
end
end
RUBY
output = run_test_file("unit/failing_test.rb", env: { "BACKTRACE" => "1" })
assert_match %r{test/unit/failing_test\.rb}, output
assert_match %r{test/unit/failing_test\.rb:4}, output
end
test "ruby schema migrations" do
output = rails("generate", "model", "user", "name:string")
version = output.match(/(\d+)_create_users\.rb/)[1]
app_file "test/models/user_test.rb", <<-RUBY
require 'test_helper'
class UserTest < ActiveSupport::TestCase
test "user" do
User.create! name: "Jon"
end
end
RUBY
app_file "db/schema.rb", ""
assert_unsuccessful_run "models/user_test.rb", "Migrations are pending"
app_file "db/schema.rb", <<-RUBY
ActiveRecord::Schema.define(version: #{version}) do
create_table :users do |t|
t.string :name
end
end
RUBY
app_file "config/initializers/disable_maintain_test_schema.rb", <<-RUBY
Rails.application.config.active_record.maintain_test_schema = false
RUBY
assert_unsuccessful_run "models/user_test.rb", "Could not find table 'users'"
File.delete "#{app_path}/config/initializers/disable_maintain_test_schema.rb"
result = assert_successful_test_run("models/user_test.rb")
assert_not_includes result, "create_table(:users)"
end
test "sql structure migrations" do
output = rails("generate", "model", "user", "name:string")
version = output.match(/(\d+)_create_users\.rb/)[1]
app_file "test/models/user_test.rb", <<-RUBY
require 'test_helper'
class UserTest < ActiveSupport::TestCase
test "user" do
User.create! name: "Jon"
end
end
RUBY
app_file "db/structure.sql", ""
app_file "config/initializers/enable_sql_schema_format.rb", <<-RUBY
Rails.application.config.active_record.schema_format = :sql
RUBY
assert_unsuccessful_run "models/user_test.rb", "Migrations are pending"
app_file "db/structure.sql", <<-SQL
CREATE TABLE "schema_migrations" ("version" varchar(255) NOT NULL);
CREATE UNIQUE INDEX "unique_schema_migrations" ON "schema_migrations" ("version");
CREATE TABLE "users" ("id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "name" varchar(255));
INSERT INTO schema_migrations (version) VALUES ('#{version}');
SQL
app_file "config/initializers/disable_maintain_test_schema.rb", <<-RUBY
Rails.application.config.active_record.maintain_test_schema = false
RUBY
assert_unsuccessful_run "models/user_test.rb", "Could not find table 'users'"
File.delete "#{app_path}/config/initializers/disable_maintain_test_schema.rb"
assert_successful_test_run("models/user_test.rb")
end
test "sql structure migrations when adding column to existing table" do
output_1 = rails("generate", "model", "user", "name:string")
version_1 = output_1.match(/(\d+)_create_users\.rb/)[1]
app_file "test/models/user_test.rb", <<-RUBY
require 'test_helper'
class UserTest < ActiveSupport::TestCase
test "user" do
User.create! name: "Jon"
end
end
RUBY
app_file "config/initializers/enable_sql_schema_format.rb", <<-RUBY
Rails.application.config.active_record.schema_format = :sql
RUBY
app_file "db/structure.sql", <<-SQL
CREATE TABLE "schema_migrations" ("version" varchar(255) NOT NULL);
CREATE UNIQUE INDEX "unique_schema_migrations" ON "schema_migrations" ("version");
CREATE TABLE "users" ("id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "name" varchar(255));
INSERT INTO schema_migrations (version) VALUES ('#{version_1}');
SQL
assert_successful_test_run("models/user_test.rb")
output_2 = rails("generate", "migration", "add_email_to_users")
version_2 = output_2.match(/(\d+)_add_email_to_users\.rb/)[1]
app_file "test/models/user_test.rb", <<-RUBY
require 'test_helper'
class UserTest < ActiveSupport::TestCase
test "user" do
User.create! name: "Jon", email: "jon@doe.com"
end
end
RUBY
app_file "db/structure.sql", <<-SQL
CREATE TABLE "schema_migrations" ("version" varchar(255) NOT NULL);
CREATE UNIQUE INDEX "unique_schema_migrations" ON "schema_migrations" ("version");
CREATE TABLE "users" ("id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "name" varchar(255), "email" varchar(255));
INSERT INTO schema_migrations (version) VALUES ('#{version_1}');
INSERT INTO schema_migrations (version) VALUES ('#{version_2}');
SQL
assert_successful_test_run("models/user_test.rb")
end
test "automatically synchronizes test schema after rollback" do
output = rails("generate", "model", "user", "name:string")
version = output.match(/(\d+)_create_users\.rb/)[1]
app_file "test/models/user_test.rb", <<-RUBY
require 'test_helper'
class UserTest < ActiveSupport::TestCase
test "user" do
assert_equal ["id", "name"], User.columns_hash.keys
end
end
RUBY
app_file "db/schema.rb", <<-RUBY
ActiveRecord::Schema.define(version: #{version}) do
create_table :users do |t|
t.string :name
end
end
RUBY
assert_successful_test_run "models/user_test.rb"
# Simulate `db:rollback` + edit of the migration file + `db:migrate`
app_file "db/schema.rb", <<-RUBY
ActiveRecord::Schema.define(version: #{version}) do
create_table :users do |t|
t.string :name
t.integer :age
end
end
RUBY
assert_unsuccessful_run "models/user_test.rb", <<-ASSERTION
Expected: ["id", "name"]
Actual: ["id", "name", "age"]
ASSERTION
end
test "hooks for plugins" do
output = rails("generate", "model", "user", "name:string")
version = output.match(/(\d+)_create_users\.rb/)[1]
app_file "lib/tasks/hooks.rake", <<-RUBY
task :before_hook do
has_user_table = ActiveRecord::Base.connection.table_exists?('users')
puts "before: " + has_user_table.to_s
end
task :after_hook do
has_user_table = ActiveRecord::Base.connection.table_exists?('users')
puts "after: " + has_user_table.to_s
end
Rake::Task["db:test:prepare"].enhance [:before_hook] do
Rake::Task[:after_hook].invoke
end
RUBY
app_file "test/models/user_test.rb", <<-RUBY
require 'test_helper'
class UserTest < ActiveSupport::TestCase
test "user" do
User.create! name: "Jon"
end
end
RUBY
# Simulate `db:migrate`
app_file "db/schema.rb", <<-RUBY
ActiveRecord::Schema.define(version: #{version}) do
create_table :users do |t|
t.string :name
end
end
RUBY
output = assert_successful_test_run "models/user_test.rb"
assert_includes output, "before: false\nafter: true"
# running tests again won't trigger a schema update
output = assert_successful_test_run "models/user_test.rb"
assert_not_includes output, "before:"
assert_not_includes output, "after:"
end
private
def assert_unsuccessful_run(name, message)
result = run_test_file(name)
assert_not_equal 0, $?.to_i
assert_includes result, message
result
end
def assert_successful_test_run(name)
result = run_test_file(name)
assert_equal 0, $?.to_i, result
result
end
def run_test_file(name, options = {})
rails "test", "#{app_path}/test/#{name}", allow_failure: true
end
end
end
|
