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Merge pull request #9080 from sikachu/master-rails-test

Add `rails test` command to run the test suite
  • Loading branch information...
commit 90a97156e4c4618f2702c2bdc3415138e9f94add 2 parents 8fc3915 + 3ed41e5
@rafaelfranca rafaelfranca authored
View
126 guides/source/testing.md
@@ -1,8 +1,7 @@
A Guide to Testing Rails Applications
=====================================
-This guide covers built-in mechanisms offered by Rails to test your
-application.
+This guide covers built-in mechanisms in Rails for testing your application.
After reading this guide, you will know:
@@ -38,11 +37,11 @@ Rails creates a `test` folder for you as soon as you create a Rails project usin
```bash
$ ls -F test
-
-fixtures/ functional/ integration/ test_helper.rb unit/
+controllers/ helpers/ mailers/ test_helper.rb
+fixtures/ integration/ models/
```
-The `unit` directory is meant to hold tests for your models, the `functional` directory is meant to hold tests for your controllers and the `integration` directory is meant to hold tests that involve any number of controllers interacting.
+The `models` directory is meant to hold tests for your models, the `controllers` directory is meant to hold tests for your controllers and the `integration` directory is meant to hold tests that involve any number of controllers interacting.
Fixtures are a way of organizing test data; they reside in the `fixtures` folder.
@@ -140,10 +139,9 @@ The default test stub in `test/models/post_test.rb` looks like this:
require 'test_helper'
class PostTest < ActiveSupport::TestCase
- # Replace this with your real tests.
- test "the truth" do
- assert true
- end
+ # test "the truth" do
+ # assert true
+ # end
end
```
@@ -224,34 +222,30 @@ TIP: You can see all these rake tasks and their descriptions by running `rake --
### Running Tests
-Running a test is as simple as invoking the file containing the test cases through Ruby:
+Running a test is as simple as invoking the file containing the test cases through `rails test` command.
```bash
-$ ruby -Itest test/models/post_test.rb
-
-Loaded suite models/post_test
-Started
+$ rails test test/models/post_test.rb
.
-Finished in 0.023513 seconds.
-1 tests, 1 assertions, 0 failures, 0 errors
-```
+Finished tests in 0.009262s, 107.9680 tests/s, 107.9680 assertions/s.
-This will run all the test methods from the test case. Note that `test_helper.rb` is in the `test` directory, hence this directory needs to be added to the load path using the `-I` switch.
+1 tests, 1 assertions, 0 failures, 0 errors, 0 skips
+```
-You can also run a particular test method from the test case by using the `-n` switch with the `test method name`.
+You can also run a particular test method from the test case by running the test and using `-n` switch with the `test method name`.
```bash
-$ ruby -Itest test/models/post_test.rb -n test_the_truth
-
-Loaded suite models/post_test
-Started
+$ rails test test/models/post_test.rb -n test_the_truth
.
-Finished in 0.023513 seconds.
-1 tests, 1 assertions, 0 failures, 0 errors
+Finished tests in 0.009064s, 110.3266 tests/s, 110.3266 assertions/s.
+
+1 tests, 1 assertions, 0 failures, 0 errors, 0 skips
```
+This will run all test methods from the test case. Note that `test_helper.rb` is in the `test` directory, hence this directory needs to be added to the load path using the `-I` switch.
+
The `.` (dot) above indicates a passing test. When a test fails you see an `F`; when a test throws an error you see an `E` in its place. The last line of the output is the summary.
To see how a test failure is reported, you can add a failing test to the `post_test.rb` test case.
@@ -266,17 +260,16 @@ end
Let us run this newly added test.
```bash
-$ ruby unit/post_test.rb -n test_should_not_save_post_without_title
-Loaded suite -e
-Started
+$ rails test test/models/post_test.rb -n test_should_not_save_post_without_title
F
-Finished in 0.102072 seconds.
+
+Finished tests in 0.044632s, 22.4054 tests/s, 22.4054 assertions/s.
1) Failure:
-test_should_not_save_post_without_title(PostTest) [/test/models/post_test.rb:6]:
-<false> is not true.
+test_should_not_save_post_without_title(PostTest) [test/models/post_test.rb:6]:
+Failed assertion, no message given.
-1 tests, 1 assertions, 1 failures, 0 errors
+1 tests, 1 assertions, 1 failures, 0 errors, 0 skips
```
In the output, `F` denotes a failure. You can see the corresponding trace shown under `1)` along with the name of the failing test. The next few lines contain the stack trace followed by a message which mentions the actual value and the expected value by the assertion. The default assertion messages provide just enough information to help pinpoint the error. To make the assertion failure message more readable, every assertion provides an optional message parameter, as shown here:
@@ -292,9 +285,8 @@ Running this test shows the friendlier assertion message:
```bash
1) Failure:
-test_should_not_save_post_without_title(PostTest) [/test/models/post_test.rb:6]:
-Saved the post without a title.
-<false> is not true.
+test_should_not_save_post_without_title(PostTest) [test/models/post_test.rb:6]:
+Saved the post without a title
```
Now to get this test to pass we can add a model level validation for the _title_ field.
@@ -308,13 +300,12 @@ end
Now the test should pass. Let us verify by running the test again:
```bash
-$ ruby unit/post_test.rb -n test_should_not_save_post_without_title
-Loaded suite unit/post_test
-Started
+$ rails test test/models/post_test.rb -n test_should_not_save_post_without_title
.
-Finished in 0.193608 seconds.
-1 tests, 1 assertions, 0 failures, 0 errors
+Finished tests in 0.047721s, 20.9551 tests/s, 20.9551 assertions/s.
+
+1 tests, 1 assertions, 0 failures, 0 errors, 0 skips
```
Now, if you noticed, we first wrote a test which fails for a desired functionality, then we wrote some code which adds the functionality and finally we ensured that our test passes. This approach to software development is referred to as _Test-Driven Development_ (TDD).
@@ -334,18 +325,17 @@ end
Now you can see even more output in the console from running the tests:
```bash
-$ ruby unit/post_test.rb -n test_should_report_error
-Loaded suite -e
-Started
+$ rails test test/models/post_test.rb -n test_should_report_error
E
-Finished in 0.082603 seconds.
+
+Finished tests in 0.030974s, 32.2851 tests/s, 0.0000 assertions/s.
1) Error:
test_should_report_error(PostTest):
-NameError: undefined local variable or method `some_undefined_variable' for #<PostTest:0x249d354>
- /test/models/post_test.rb:6:in `test_should_report_error'
+NameError: undefined local variable or method `some_undefined_variable' for #<PostTest:0x007fe32e24afe0>
+ test/models/post_test.rb:10:in `block in <class:PostTest>'
-1 tests, 0 assertions, 0 failures, 1 errors
+1 tests, 0 assertions, 0 failures, 1 errors, 0 skips
```
Notice the 'E' in the output. It denotes a test with error.
@@ -642,12 +632,9 @@ Here's what a freshly-generated integration test looks like:
require 'test_helper'
class UserFlowsTest < ActionDispatch::IntegrationTest
- fixtures :all
-
- # Replace this with your real tests.
- test "the truth" do
- assert true
- end
+ # test "the truth" do
+ # assert true
+ # end
end
```
@@ -755,23 +742,28 @@ end
Rake Tasks for Running your Tests
---------------------------------
-You don't need to set up and run your tests by hand on a test-by-test basis. Rails comes with a number of rake tasks to help in testing. The table below lists all rake tasks that come along in the default Rakefile when you initiate a Rails project.
+You don't need to set up and run your tests by hand on a test-by-test basis. Rails comes with a number of commands to help in testing. The table below lists all commands that come along in the default Rakefile when you initiate a Rails project.
+
+| Tasks | Description |
+| ------------------------ | ----------- |
+| `rails test` | Runs all unit, functional and integration tests. You can also simply run `rails test` as Rails will run all the tests by default|
+| `rails test controllers` | Runs all the controller tests from `test/controllers`|
+| `rails test functionals` | Runs all the functional tests from `test/controllers`, `test/mailers`, and `test/functional`|
+| `rails test helpers` | Runs all the helper tests from `test/helpers`|
+| `rails test integration` | Runs all the integration tests from `test/integration`|
+| `rails test mailers` | Runs all the mailer tests from `test/mailers`|
+| `rails test models` | Runs all the model tests from `test/models`|
+| `rails test units` | Runs all the unit tests from `test/models`, `test/helpers`, and `test/unit`|
-| Tasks | Description |
-| ------------------------------- | ----------- |
-| `rake test` | Runs all unit, functional and integration tests. You can also simply run `rake` as the _test_ target is the default.|
-| `rake test:controllers` | Runs all the controller tests from `test/controllers`|
-| `rake test:functionals` | Runs all the functional tests from `test/controllers`, `test/mailers`, and `test/functional`|
-| `rake test:helpers` | Runs all the helper tests from `test/helpers`|
-| `rake test:integration` | Runs all the integration tests from `test/integration`|
-| `rake test:mailers` | Runs all the mailer tests from `test/mailers`|
-| `rake test:models` | Runs all the model tests from `test/models`|
-| `rake test:recent` | Tests recent changes|
-| `rake test:uncommitted` | Runs all the tests which are uncommitted. Supports Subversion and Git|
-| `rake test:units` | Runs all the unit tests from `test/models`, `test/helpers`, and `test/unit`|
+There're also some test commands which you can initiate by running rake tasks:
+| Tasks | Description |
+| ------------------------ | ----------- |
+| `rake test` | Runs all unit, functional and integration tests. You can also simply run `rake` as the _test_ target is the default.|
+| `rake test:recent` | Tests recent changes|
+| `rake test:uncommitted` | Runs all the tests which are uncommitted. Supports Subversion and Git|
-Brief Note About `Test::Unit`
+Brief Note About `MiniTest`
-----------------------------
Ruby ships with a boat load of libraries. Ruby 1.8 provides `Test::Unit`, a framework for unit testing in Ruby. All the basic assertions discussed above are actually defined in `Test::Unit::Assertions`. The class `ActiveSupport::TestCase` which we have been using in our unit and functional tests extends `Test::Unit::TestCase`, allowing
View
32 railties/CHANGELOG.md
@@ -19,6 +19,38 @@
*Terence Lee*
+* Rails now generates a `test/test_helper.rb` file with `fixtures :all` commented out by default,
+ since we don't want to force loading all fixtures for user when a single test is run. However,
+ fixtures are still going to be loaded automatically for test suites.
+
+ To force all fixtures to be create in your database, use `rails test -f` to run your test.
+
+ *Prem Sichanugrist*
+
+* Add `rails test` command for running tests
+
+ To run all tests:
+
+ $ rails test
+
+ To run a test suite
+
+ $ rails test [models,helpers,units,controllers,mailers,...]
+
+ To run a selected test file(s):
+
+ $ rails test test/unit/foo_test.rb [test/unit/bar_test.rb ...]
+
+ To run a single test from a test file
+
+ $ rails test test/unit/foo_test.rb -n test_the_truth
+
+ For more information, see `rails test --help`.
+
+ This command will eventually replace `rake test:*` and `rake test` tasks
+
+ *Prem Sichanugrist and Chris Toomey*
+
* Add notice message for destroy action in scaffold generator.
*Rahul P. Chaudhari*
View
11 railties/lib/rails/commands.rb
@@ -5,6 +5,7 @@
"d" => "destroy",
"c" => "console",
"s" => "server",
+ "t" => "test",
"db" => "dbconsole",
"r" => "runner"
}
@@ -16,6 +17,7 @@
generate Generate new code (short-cut alias: "g")
console Start the Rails console (short-cut alias: "c")
server Start the Rails server (short-cut alias: "s")
+ test Running the test file (short-cut alias: "t")
dbconsole Start a console for the database specified in config/database.yml
(short-cut alias: "db")
new Create a new Rails application. "rails new my_app" creates a
@@ -78,6 +80,15 @@
server.start
end
+when 'test'
+ $LOAD_PATH.unshift("./test")
+ require 'rails/commands/test_runner'
+ options = Rails::TestRunner.parse_arguments(ARGV)
+ ENV['RAILS_ENV'] ||= options[:environment] || 'test'
+
+ require APP_PATH
+ Rails::TestRunner.start(ARGV, options)
+
when 'dbconsole'
require 'rails/commands/dbconsole'
Rails::DBConsole.start
View
146 railties/lib/rails/commands/test_runner.rb
@@ -0,0 +1,146 @@
+require 'optparse'
+require 'minitest/unit'
+
+module Rails
+ # Handles all logic behind +rails test+ command.
+ class TestRunner
+ class << self
+ # Creates a new +TestRunner+ object with an array of test files to run
+ # based on the arguments. When no arguments are provided, it runs all test
+ # files. When a suite argument is provided, it runs only the test files in
+ # that suite. Otherwise, it runs the specified test file(s).
+ def start(files, options = {})
+ original_fixtures_options = options.delete(:fixtures)
+ options[:fixtures] = true
+
+ case files.first
+ when nil
+ new(Dir['test/**/*_test.rb'], options).run
+ when 'models'
+ new(Dir['test/models/**/*_test.rb'], options).run
+ when 'helpers'
+ new(Dir['test/helpers/**/*_test.rb'], options).run
+ when 'units'
+ new(Dir['test/{models,helpers,unit}/**/*_test.rb'], options).run
+ when 'controllers'
+ new(Dir['test/controllers/**/*_test.rb'], options).run
+ when 'mailers'
+ new(Dir['test/mailers/**/*_test.rb'], options).run
+ when 'functionals'
+ new(Dir['test/{controllers,mailers,functional}/**/*_test.rb'], options).run
+ when 'integration'
+ new(Dir['test/integration/**/*_test.rb'], options).run
+ else
+ options[:fixtures] = original_fixtures_options
+ new(files, options).run
+ end
+ end
+
+ # Parses arguments and sets them as option flags
+ def parse_arguments(arguments)
+ options = {}
+ orig_arguments = arguments.dup
+
+ OptionParser.new do |opts|
+ opts.banner = "Usage: rails test [path to test file(s) or test suite]"
+
+ opts.separator ""
+ opts.separator "Run a specific test file(s) or a test suite, under Rails'"
+ opts.separator "environment. If the file name(s) or suit name is omitted,"
+ opts.separator "Rails will run all tests."
+ opts.separator ""
+ opts.separator "Specific options:"
+
+ opts.on '-h', '--help', 'Display this help.' do
+ puts opts
+ exit
+ end
+
+ opts.on '-e', '--environment NAME', String, 'Specifies the environment to run this test under' do |e|
+ options[:environment] = e
+ end
+
+ opts.on '-f', '--fixtures', 'Load fixtures in test/fixtures/ before running the tests' do
+ options[:fixtures] = true
+ end
+
+ opts.on '-s', '--seed SEED', Integer, "Sets random seed" do |m|
+ options[:seed] = m.to_i
+ end
+
+ opts.on '-v', '--verbose', "Verbose. Show progress processing files." do
+ options[:verbose] = true
+ end
+
+ opts.on '-n', '--name PATTERN', "Filter test names on pattern (e.g. /foo/)" do |n|
+ options[:filter] = n
+ end
+
+ opts.separator ""
+ opts.separator "Support types of test suites:"
+ opts.separator "-------------------------------------------------------------"
+ opts.separator "* models (test/models/**/*)"
+ opts.separator "* helpers (test/helpers/**/*)"
+ opts.separator "* units (test/{models,helpers,unit}/**/*"
+ opts.separator "* controllers (test/controllers/**/*)"
+ opts.separator "* mailers (test/mailers/**/*)"
+ opts.separator "* functionals (test/{controllers,mailers,functional}/**/*)"
+ opts.separator "* integration (test/integration/**/*)"
+ opts.separator "-------------------------------------------------------------"
+
+ opts.parse! arguments
+ orig_arguments -= arguments
+ end
+ options
+ end
+ end
+
+ # Creates a new +TestRunner+ object with a list of test file paths.
+ def initialize(files, options)
+ @files = files
+
+ Rails.application.load_tasks
+ Rake::Task['db:test:load'].invoke
+
+ if options.delete(:fixtures)
+ if defined?(ActiveRecord::Base)
+ ActiveSupport::TestCase.send :include, ActiveRecord::TestFixtures
+ ActiveSupport::TestCase.fixture_path = "#{Rails.root}/test/fixtures/"
+ ActiveSupport::TestCase.fixtures :all
+ end
+ end
+
+ MiniTest::Unit.runner.options = options
+ MiniTest::Unit.output = SilentUntilSyncStream.new(MiniTest::Unit.output)
+ end
+
+ # Runs test files by evaluating each of them.
+ def run
+ @files.each { |filename| load(filename) }
+ end
+
+ # A null stream object which ignores everything until +sync+ has been set
+ # to true. This is only used to silence unnecessary output from MiniTest,
+ # as MiniTest calls +output.sync = true+ right before it outputs the first
+ # test result.
+ class SilentUntilSyncStream < File
+ # Creates a +SilentUntilSyncStream+ object by giving it a target stream
+ # object that will be assigned to +MiniTest::Unit.output+ after +sync+ is
+ # set to true.
+ def initialize(target_stream)
+ @target_stream = target_stream
+ super(File::NULL, 'w')
+ end
+
+ # Swaps +MiniTest::Unit.output+ to another stream when +sync+ is true.
+ def sync=(sync)
+ if sync
+ @target_stream.sync = true
+ MiniTest::Unit.output = @target_stream
+ end
+
+ super
+ end
+ end
+ end
+end
View
7 railties/lib/rails/generators/rails/app/templates/test/test_helper.rb
@@ -1,4 +1,4 @@
-ENV["RAILS_ENV"] = "test"
+ENV["RAILS_ENV"] ||= "test"
require File.expand_path('../../config/environment', __FILE__)
require 'rails/test_help'
@@ -6,11 +6,12 @@ class ActiveSupport::TestCase
<% unless options[:skip_active_record] -%>
ActiveRecord::Migration.check_pending!
- # Setup all fixtures in test/fixtures/*.yml for all tests in alphabetical order.
+ # Uncomment the `fixtures :all` line below to setup all fixtures in test/fixtures/*.yml
+ # for all tests in alphabetical order.
#
# Note: You'll currently still have to declare fixtures explicitly in integration tests
# -- they do not yet inherit this setting
- fixtures :all
+ # fixtures :all
<% end -%>
# Add more helper methods to be used by all tests here...
View
80 railties/lib/rails/test_unit/testing.rake
@@ -1,6 +1,7 @@
require 'rbconfig'
require 'rake/testtask'
require 'rails/test_unit/sub_test_task'
+require 'active_support/deprecation'
TEST_CHANGES_SINCE = Time.now - 600
@@ -47,7 +48,11 @@ task default: :test
desc 'Runs test:units, test:functionals, test:integration together'
task :test do
- Rake::Task[ENV['TEST'] ? 'test:single' : 'test:run'].invoke
+ if ENV['TEST']
+ exec "bundle exec rails test #{ENV['TEST'].inspect}"
+ else
+ exec 'bundle exec rails test'
+ end
end
namespace :test do
@@ -56,19 +61,8 @@ namespace :test do
end
task :run do
- errors = %w(test:units test:functionals test:integration).collect do |task|
- begin
- Rake::Task[task].invoke
- nil
- rescue => e
- { task: task, exception: e }
- end
- end.compact
-
- if errors.any?
- puts errors.map { |e| "Errors running #{e[:task]}! #{e[:exception].inspect}" }.join("\n")
- abort
- end
+ ActiveSupport::Deprecation.warn "`rake test:run` is deprecated. Please use `rails test`."
+ exec 'bundle exec rails test'
end
# Inspired by: http://ngauthier.com/2012/02/quick-tests-with-bash.html
@@ -83,7 +77,13 @@ namespace :test do
task :db => %w[db:test:prepare test:all]
end
- Rake::TestTask.new(recent: "test:prepare") do |t|
+ # Display deprecation message
+ task :deprecated do
+ task_name = ARGV.first
+ ActiveSupport::Deprecation.warn "`rake #{ARGV.first}` is deprecated with no replacement."
+ end
+
+ Rake::TestTask.new(recent: ["test:deprecated", "test:prepare"]) do |t|
since = TEST_CHANGES_SINCE
touched = FileList['test/**/*_test.rb'].select { |path| File.mtime(path) > since } +
recent_tests('app/models/**/*.rb', 'test/models', since) +
@@ -94,9 +94,9 @@ namespace :test do
t.libs << 'test'
t.test_files = touched.uniq
end
- Rake::Task['test:recent'].comment = "Test recent changes"
+ Rake::Task['test:recent'].comment = "Deprecated; Test recent changes"
- Rake::TestTask.new(uncommitted: "test:prepare") do |t|
+ Rake::TestTask.new(uncommitted: ["test:deprecated", "test:prepare"]) do |t|
def t.file_list
if File.directory?(".svn")
changed_since_checkin = silence_stderr { `svn status` }.split.map { |path| path.chomp[7 .. -1] }
@@ -118,44 +118,20 @@ namespace :test do
t.libs << 'test'
end
- Rake::Task['test:uncommitted'].comment = "Test changes since last checkin (only Subversion and Git)"
-
- Rake::TestTask.new(single: "test:prepare") do |t|
- t.libs << "test"
- end
-
- Rails::SubTestTask.new(models: "test:prepare") do |t|
- t.libs << "test"
- t.pattern = 'test/models/**/*_test.rb'
- end
-
- Rails::SubTestTask.new(helpers: "test:prepare") do |t|
- t.libs << "test"
- t.pattern = 'test/helpers/**/*_test.rb'
- end
+ Rake::Task['test:uncommitted'].comment = "Deprecated; Test changes since last checkin (only Subversion and Git)"
- Rails::SubTestTask.new(units: "test:prepare") do |t|
- t.libs << "test"
- t.pattern = 'test/{models,helpers,unit}/**/*_test.rb'
+ desc "Deprecated; Please use `rails test \"#{ENV['TEST']}\"`"
+ task :single do
+ ActiveSupport::Deprecation.warn "`rake test:single` is deprecated. Please use `rails test \"#{ENV['TEST']}\"`."
+ exec "bundle exec rails test #{test_suit_name}"
end
- Rails::SubTestTask.new(controllers: "test:prepare") do |t|
- t.libs << "test"
- t.pattern = 'test/controllers/**/*_test.rb'
- end
+ [:models, :helpers, :units, :controllers, :functionals, :integration].each do |test_suit_name|
+ desc "Deprecated; Please use `rails test #{test_suit_name}`"
+ task test_suit_name do
+ ActiveSupport::Deprecation.warn "`rake test:#{test_suit_name}` is deprecated. Please use `rails test #{test_suit_name}`."
- Rails::SubTestTask.new(mailers: "test:prepare") do |t|
- t.libs << "test"
- t.pattern = 'test/mailers/**/*_test.rb'
- end
-
- Rails::SubTestTask.new(functionals: "test:prepare") do |t|
- t.libs << "test"
- t.pattern = 'test/{controllers,mailers,functional}/**/*_test.rb'
- end
-
- Rails::SubTestTask.new(integration: "test:prepare") do |t|
- t.libs << "test"
- t.pattern = 'test/integration/**/*_test.rb'
+ exec "bundle exec rails test #{test_suit_name}"
+ end
end
end
View
23 railties/test/application/rake_test.rb
@@ -91,19 +91,9 @@ def test_rake_test_error_output
raise 'models'
RUBY
- app_file "test/controllers/one_controller_test.rb", <<-RUBY
- raise 'controllers'
- RUBY
-
- app_file "test/integration/one_integration_test.rb", <<-RUBY
- raise 'integration'
- RUBY
-
silence_stderr do
output = Dir.chdir(app_path) { `rake test 2>&1` }
assert_match 'models', output
- assert_match 'controllers', output
- assert_match 'integration', output
end
end
@@ -135,6 +125,19 @@ def test_rake_test_uncommitted_fails_with_no_scm
end
end
+ def test_rake_test_deprecation_messages
+ Dir.chdir(app_path){ `rails generate scaffold user name:string` }
+ Dir.chdir(app_path){ `rake db:migrate` }
+
+ %w(run recent uncommitted models helpers units controllers functionals integration).each do |test_suit_name|
+ output = Dir.chdir(app_path) { `rake test:#{test_suit_name} 2>&1` }
+ assert_match /DEPRECATION WARNING: `rake test:#{test_suit_name}` is deprecated/, output
+ end
+
+ assert_match /DEPRECATION WARNING: `rake test:single` is deprecated/,
+ Dir.chdir(app_path) { `rake test:single TEST=test/models/user_test.rb 2>&1` }
+ end
+
def test_rake_routes_calls_the_route_inspector
app_file "config/routes.rb", <<-RUBY
AppTemplate::Application.routes.draw do
View
298 railties/test/application/test_runner_test.rb
@@ -0,0 +1,298 @@
+require 'isolation/abstract_unit'
+require 'active_support/core_ext/string/strip'
+
+module ApplicationTests
+ class TestRunnerTest < ActiveSupport::TestCase
+ include ActiveSupport::Testing::Isolation
+
+ def setup
+ build_app
+ create_schema
+ end
+
+ def teardown
+ teardown_app
+ end
+
+ def test_should_not_display_heading
+ create_test_file
+ run_test_command.tap do |output|
+ assert_no_match /Run options:/, output
+ assert_no_match /Running tests:/, output
+ end
+ end
+
+ def test_run_shortcut
+ create_test_file :models, 'foo'
+ output = Dir.chdir(app_path) { `bundle exec rails t test/models/foo_test.rb` }
+ assert_match /1 tests, 1 assertions, 0 failures/, output
+ end
+
+ def test_run_single_file
+ create_test_file :models, 'foo'
+ assert_match /1 tests, 1 assertions, 0 failures/, run_test_command("test/models/foo_test.rb")
+ end
+
+ def test_run_multiple_files
+ create_test_file :models, 'foo'
+ create_test_file :models, 'bar'
+ assert_match /2 tests, 2 assertions, 0 failures/, run_test_command("test/models/foo_test.rb test/models/bar_test.rb")
+ end
+
+ def test_run_file_with_syntax_error
+ app_file 'test/models/error_test.rb', <<-RUBY
+ require 'test_helper'
+ def; end
+ RUBY
+
+ error_stream = Tempfile.new('error')
+ redirect_stderr(error_stream) { run_test_command('test/models/error_test.rb') }
+ assert_match /SyntaxError/, error_stream.read
+ end
+
+ def test_invoke_rake_test_prepare
+ app_file "lib/tasks/test.rake", <<-RUBY
+ namespace :test do
+ task :prepare do
+ puts "Hello World"
+ end
+ end
+ RUBY
+ create_test_file
+ assert_match /Hello World/, run_test_command
+ end
+
+ def test_run_models
+ create_test_file :models, 'foo'
+ create_test_file :models, 'bar'
+ create_test_file :controllers, 'foobar_controller'
+ run_test_command("models").tap do |output|
+ assert_match /FooTest/, output
+ assert_match /BarTest/, output
+ assert_match /2 tests, 2 assertions, 0 failures/, output
+ end
+ end
+
+ def test_run_helpers
+ create_test_file :helpers, 'foo_helper'
+ create_test_file :helpers, 'bar_helper'
+ create_test_file :controllers, 'foobar_controller'
+ run_test_command('helpers').tap do |output|
+ assert_match /FooHelperTest/, output
+ assert_match /BarHelperTest/, output
+ assert_match /2 tests, 2 assertions, 0 failures/, output
+ end
+ end
+
+ def test_run_units
+ create_test_file :models, 'foo'
+ create_test_file :helpers, 'bar_helper'
+ create_test_file :unit, 'baz_unit'
+ create_test_file :controllers, 'foobar_controller'
+ run_test_command('units').tap do |output|
+ assert_match /FooTest/, output
+ assert_match /BarHelperTest/, output
+ assert_match /BazUnitTest/, output
+ assert_match /3 tests, 3 assertions, 0 failures/, output
+ end
+ end
+
+ def test_run_controllers
+ create_test_file :controllers, 'foo_controller'
+ create_test_file :controllers, 'bar_controller'
+ create_test_file :models, 'foo'
+ run_test_command('controllers').tap do |output|
+ assert_match /FooControllerTest/, output
+ assert_match /BarControllerTest/, output
+ assert_match /2 tests, 2 assertions, 0 failures/, output
+ end
+ end
+
+ def test_run_mailers
+ create_test_file :mailers, 'foo_mailer'
+ create_test_file :mailers, 'bar_mailer'
+ create_test_file :models, 'foo'
+ run_test_command('mailers').tap do |output|
+ assert_match /FooMailerTest/, output
+ assert_match /BarMailerTest/, output
+ assert_match /2 tests, 2 assertions, 0 failures/, output
+ end
+ end
+
+ def test_run_functionals
+ create_test_file :mailers, 'foo_mailer'
+ create_test_file :controllers, 'bar_controller'
+ create_test_file :functional, 'baz_functional'
+ create_test_file :models, 'foo'
+ run_test_command('functionals').tap do |output|
+ assert_match /FooMailerTest/, output
+ assert_match /BarControllerTest/, output
+ assert_match /BazFunctionalTest/, output
+ assert_match /3 tests, 3 assertions, 0 failures/, output
+ end
+ end
+
+ def test_run_integration
+ create_test_file :integration, 'foo_integration'
+ create_test_file :models, 'foo'
+ run_test_command('integration').tap do |output|
+ assert_match /FooIntegration/, output
+ assert_match /1 tests, 1 assertions, 0 failures/, output
+ end
+ end
+
+ def test_run_all_suites
+ suites = [:models, :helpers, :unit, :controllers, :mailers, :functional, :integration]
+ suites.each { |suite| create_test_file suite, "foo_#{suite}" }
+ run_test_command('') .tap do |output|
+ suites.each { |suite| assert_match /Foo#{suite.to_s.camelize}Test/, output }
+ assert_match /7 tests, 7 assertions, 0 failures/, output
+ end
+ end
+
+ def test_run_named_test
+ app_file 'test/unit/chu_2_koi_test.rb', <<-RUBY
+ require 'test_helper'
+
+ class Chu2KoiTest < ActiveSupport::TestCase
+ def test_rikka
+ puts 'Rikka'
+ end
+
+ def test_sanae
+ puts 'Sanae'
+ end
+ end
+ RUBY
+
+ run_test_command('test/unit/chu_2_koi_test.rb -n test_rikka').tap do |output|
+ assert_match /Rikka/, output
+ assert_no_match /Sanae/, output
+ end
+ end
+
+ def test_not_load_fixtures_when_running_single_test
+ create_model_with_fixture
+ create_fixture_test :models, 'user'
+ assert_match /0 users/, run_test_command('test/models/user_test.rb')
+ assert_match /3 users/, run_test_command('test/models/user_test.rb -f')
+ end
+
+ def test_load_fixtures_when_running_test_suites
+ create_model_with_fixture
+ suites = [:models, :helpers, [:units, :unit], :controllers, :mailers,
+ [:functionals, :functional], :integration]
+
+ suites.each do |suite, directory|
+ directory ||= suite
+ create_fixture_test directory
+ assert_match /3 users/, run_test_command(suite)
+ Dir.chdir(app_path) { FileUtils.rm_f "test/#{directory}" }
+ end
+ end
+
+ def test_run_different_environment_using_env_var
+ app_file 'test/unit/env_test.rb', <<-RUBY
+ require 'test_helper'
+
+ class EnvTest < ActiveSupport::TestCase
+ def test_env
+ puts Rails.env
+ end
+ end
+ RUBY
+
+ assert_match /development/, Dir.chdir(app_path) { `RAILS_ENV=development bundle exec rails test test/unit/env_test.rb` }
+ end
+
+ def test_run_different_environment_using_e_tag
+ app_file 'test/unit/env_test.rb', <<-RUBY
+ require 'test_helper'
+
+ class EnvTest < ActiveSupport::TestCase
+ def test_env
+ puts Rails.env
+ end
+ end
+ RUBY
+
+ assert_match /development/, run_test_command('-e development test/unit/env_test.rb')
+ end
+
+ def test_generated_scaffold_works_with_rails_test
+ create_scaffold
+ assert_match /0 failures, 0 errors, 0 skips/, run_test_command('')
+ end
+
+ private
+ def run_test_command(arguments = 'test/unit/test_test.rb')
+ Dir.chdir(app_path) { `bundle exec rails test #{arguments}` }
+ end
+
+ def create_model_with_fixture
+ script 'generate model user name:string'
+
+ app_file 'test/fixtures/users.yml', <<-YAML.strip_heredoc
+ vampire:
+ id: 1
+ name: Koyomi Araragi
+ crab:
+ id: 2
+ name: Senjougahara Hitagi
+ cat:
+ id: 3
+ name: Tsubasa Hanekawa
+ YAML
+
+ run_migration
+ end
+
+ def create_fixture_test(path = :unit, name = 'test')
+ app_file "test/#{path}/#{name}_test.rb", <<-RUBY
+ require 'test_helper'
+
+ class #{name.camelize}Test < ActiveSupport::TestCase
+ def test_fixture
+ puts "\#{User.count} users (\#{__FILE__})"
+ end
+ end
+ RUBY
+ end
+
+ def create_schema
+ app_file 'db/schema.rb', ''
+ end
+
+ def redirect_stderr(target_stream)
+ previous_stderr = STDERR.dup
+ $stderr.reopen(target_stream)
+ yield
+ target_stream.rewind
+ ensure
+ $stderr = previous_stderr
+ end
+
+ def create_test_file(path = :unit, name = 'test')
+ app_file "test/#{path}/#{name}_test.rb", <<-RUBY
+ require 'test_helper'
+
+ class #{name.camelize}Test < ActiveSupport::TestCase
+ def test_truth
+ puts "#{name.camelize}Test"
+ assert true
+ end
+ end
+ RUBY
+ end
+
+ def create_scaffold
+ script 'generate scaffold user name:string'
+ Dir.chdir(app_path) { File.exist?('app/models/user.rb') }
+ run_migration
+ end
+
+ def run_migration
+ Dir.chdir(app_path) { `bundle exec rake db:migrate` }
+ end
+ end
+end
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