Extend all test tasks to run against every configured test db (WIP)

Closes #9

app/assets/stylesheets/application.css

@@ -231,12 +231,17 @@ textarea:invalid {
   text-decoration: underline 1px var(--color-border-gray);
   text-underline-offset: 0.25em;
 }
-[name=cancel],
 .auxiliary {
-  border-color: var(--color-border-gray);
+  border-color: var(--color-nav-gray);
   color: var(--color-nav-gray);
   fill: var(--color-nav-gray);
 }
+table .button {
+  border-color: var(--color-border-gray);
+  font-weight: normal;
+  height: 100%;
+  padding: 0.4em;
+}
 .button:focus-visible,
 .tab:focus-visible,
 .tab:hover {
@@ -259,13 +264,6 @@ textarea:invalid {
   color: var(--color-blue);
   text-decoration-color: var(--color-blue);
 }
-table .button {
-  border-color: var(--color-border-gray);
-  color: var(--color-table-gray);
-  font-weight: normal;
-  height: 100%;
-  padding: 0.4em;
-}
 
 
 /* NOTE: collapse gaps around empty rows (`topside`) once possible with
@@ -360,20 +358,20 @@ header {
   line-height: 2.2em;
   pointer-events: auto;
 }
-.flash:before {
-  filter: invert();
+.flash::before {
+  filter: invert(1);
   height: 1.4em;
   margin: 0 0.5em;
   width: 1.4em;
 }
-.flash.alert:before {
+.flash.alert::before {
   content: url('pictograms/alert-outline.svg');
 }
 .flash.alert {
   border-color: var(--color-red);
   background-color: var(--color-red);
 }
-.flash.notice:before {
+.flash.notice::before {
   content: url('pictograms/check-circle-outline.svg');
 }
 .flash.notice {
@@ -437,15 +435,18 @@ header {
 
 .tabular-form table {
   border: none;
-  border-spacing: 0.4em 0;
-  margin-inline: -0.4em;
+  border-spacing: 0;
 }
 .tabular-form table td {
   border: none;
+  padding-inline-start: 0.4em;
   vertical-align: middle;
 }
-.tabular-form table td {
-  padding-inline: 0;
+.tabular-form table td:first-child {
+  padding-inline-start: 0;
+}
+.tabular-form table td:last-child {
+  padding-inline-end: 0;
 }
 .tabular-form table :is(form, input, select, textarea):only-child {
   margin-inline-start: 0;

app/views/measurements/_form.html.erb

@@ -33,7 +33,7 @@
   <div class="flex reverse">
     <%= form.button id: :create_measurement_button, disabled: true -%>
     <%= image_link_to t(:cancel), "close-outline", measurements_path, name: :cancel,
-      class: 'dangerous', onclick: render_turbo_stream('form_close') %>
+      class: 'auxiliary dangerous', onclick: render_turbo_stream('form_close') %>
   </div>
 <% end %>
 

bin/rails

@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
 APP_PATH = File.expand_path("../config/application", __dir__)
 require_relative "../config/boot"
+require_relative "../lib/core_ext/test_multiple_adapters.rb"
 require "rails/commands"

config/application.rb.dist

@@ -20,10 +20,6 @@ Bundler.require(*Rails.groups)
 
 module FixinMe
   class Application < Rails::Application
-    # Allow RAILS_DATABASE_YML to override the database config file path.
-    # Used by `rails test:all_databases` to test against multiple DB adapters.
-    config.paths['config/database'] = [ENV['RAILS_DATABASE_YML']] if ENV['RAILS_DATABASE_YML']
-
     # Initialize configuration defaults for originally generated Rails version.
     config.load_defaults 7.0
 

config/database.yml.dist

@@ -42,32 +42,24 @@ production:
 #  <<: *default
 #  database: fixinme_dev
 
-# Warning: The database defined as "test" will be erased and
-# re-generated from your development database when you run "rake".
-# Do not set this db to the same as development or production.
+# Warning: Test databases will be erased and re-generated from your development
+# database when you run "rake". Do not set these dbs to the same as development
+# or production.
+#
+# Multiple test databases can be provided. When more than one test db is
+# present, every test task (test, test:models, test:system, etc.) automatically
+# runs against all of them.
+#
+# In additional test databases only "adapter", "database", "host", "port" and
+# "socket" settings are used. All settings default to values specified in
+# "test" - which is required in all test setups.
 #test:
 #  <<: *default
 #  database: fixinme_test
-
-# Multi-database testing — `bundle exec rails test:all_databases`
-# ---------------------------------------------------------------
-# Add any number of `test_<name>:` blocks to run the full test suite
-# against additional database adapters in a single command.
-# Each adapter's gem must be available in the bundle:
-#   bundle config --local with "mysql:sqlite"   # mysql + sqlite
-#   bundle config --local with "mysql:pg"       # mysql + postgresql
 #
-# Example — run tests against MySQL and SQLite:
-#
-#test_sqlite:
+#test_sqlite3:
 #  adapter: sqlite3
 #  database: db/fixinme_test.sqlite3
 #
-# Example — run tests against MySQL and PostgreSQL:
-#
-#test_pg:
+#test_postgresql:
 #  adapter: postgresql
-#  database: fixinme_test
-#  username: fixinme
-#  password: Some-password1%
-#  host: localhost

lib/core_ext/test_multiple_adapters.rb

@@ -0,0 +1,42 @@
+require "byebug"
+
+module CoreExt
+  module TestMultipleAdapters
+    def perform(...)
+      #require APP_PATH
+      $LOAD_PATH << Rails::Command.root.join("test").to_s
+      require "test_helper"
+
+      Rails.application.config.database_configuration.each_pair do |name, config|
+        next unless name.start_with?('test_')
+
+        puts config['adapter']
+        ENV['DATABASE_URL'] = dbconfig_to_url(config)
+        byebug
+        super
+      end
+    end
+
+    alias_method :test, :perform
+
+    private
+
+    def dbconfig_to_url(cfg)
+      return cfg['url'] if cfg.has_key?("url")
+
+      config = cfg.transform_values { |v| URI.encode_www_form_component(v) }
+
+      username, password = config.delete('username'), config.delete('password')
+      auth = username ? "#{username}:#{password}" : ''
+      host, port = config.delete('host'), config.delete('port')
+      server = port ? "#{host}:#{port}" : host
+      url = "#{config.delete('adapter')}:"
+      url += "//#{auth}@#{server}" if auth || server
+      url += "/#{config.delete('database')}"
+      url += "?#{config.map { |k,v| "#{k}=#{v}" }.join('&')}" unless config.empty?
+    end
+  end
+end
+
+#require "rails/commands/test/test_command"
+#Rails::Command::TestCommand.prepend CoreExt::TestMultipleAdapters

lib/tasks/test_databases.rake

@@ -1,118 +0,0 @@
-require 'yaml'
-require 'erb'
-require 'tmpdir'
-
-namespace :test do
-  desc <<~DESC
-    Run the full test suite against every test database configured in database.yml.
-
-    Any top-level key that starts with "test" and contains a Hash is treated as a
-    test database configuration:
-
-      test:           # always required — the primary test database
-        adapter: mysql2
-        database: fixinme_test
-        ...
-
-      test_sqlite:    # optional additional databases
-        adapter: sqlite3
-        database: db/fixinme_test.sqlite3
-
-      test_pg:
-        adapter: postgresql
-        database: fixinme_test
-        ...
-
-    For each database the task will:
-      1. Check that the required adapter gem is available (skip with warning if not).
-      2. Run `rails db:test:prepare` to create/migrate the database.
-      3. Run `rails test` and record pass/fail.
-
-    A summary is printed at the end. The task exits non-zero if any database fails.
-  DESC
-  task :all_databases do
-    db_file    = Rails.root.join('config', 'database.yml')
-    all        = YAML.safe_load(ERB.new(db_file.read).result, aliases: true) || {}
-    test_cfgs  = all.select { |k, v| k.to_s.start_with?('test') && v.is_a?(Hash) }
-    non_test   = all.reject { |k, _| k.to_s.start_with?('test') }
-
-    abort "No test database configurations found in #{db_file}." if test_cfgs.empty?
-
-    results = {}
-
-    test_cfgs.each do |name, config|
-      adapter = config['adapter'].to_s
-
-      puts "\n#{'─' * 64}"
-      puts "  #{name}  (adapter: #{adapter})"
-      puts '─' * 64
-
-      unless adapter_available?(adapter)
-        puts "  SKIPPED — gem for '#{adapter}' adapter not available in bundle."
-        puts "  Add it to Gemfile (e.g. `bundle config --local with #{adapter_group(adapter)}`)"
-        results[name] = :skipped
-        next
-      end
-
-      Dir.mktmpdir('rails_test_db_') do |tmpdir|
-        tmp_yml = File.join(tmpdir, 'database.yml')
-        # Write a standalone database.yml with just this config as `test:`
-        # (non-test configs are preserved so boot doesn't fail on `production:` lookup)
-        File.write(tmp_yml, non_test.merge('test' => config).to_yaml)
-
-        env = { 'RAILS_DATABASE_YML' => tmp_yml }
-
-        if system(env, 'bundle exec rails db:test:prepare')
-          results[name] = system(env, 'bundle exec rails test') ? :pass : :fail
-        else
-          results[name] = :prepare_failed
-        end
-      end
-    end
-
-    puts "\n#{'═' * 64}"
-    puts "  SUMMARY"
-    puts '═' * 64
-    results.each do |name, status|
-      adapter = test_cfgs[name]['adapter']
-      icon    = { pass: '✓', fail: '✗', prepare_failed: '✗', skipped: '–' }[status]
-      label   = { pass: 'PASS', fail: 'FAIL',
-                  prepare_failed: 'PREPARE FAILED', skipped: 'SKIPPED' }[status]
-      puts "  #{icon}  #{name.ljust(26)} (#{adapter.ljust(12)})  #{label}"
-    end
-    puts '═' * 64
-
-    failed = results.count { |_, s| s == :fail || s == :prepare_failed }
-    abort "\n  #{failed} database(s) failed." if failed > 0
-  end
-end
-
-private
-
-# Returns true if the gem required for this adapter is loadable.
-ADAPTER_GEMS = {
-  'mysql2'     => 'mysql2',
-  'sqlite3'    => 'sqlite3',
-  'postgresql' => 'pg',
-  'pg'         => 'pg',
-}.freeze
-
-def adapter_available?(adapter)
-  gem_name = ADAPTER_GEMS.fetch(adapter, adapter)
-  require gem_name
-  true
-rescue LoadError
-  false
-end
-
-# Returns the Bundler group name that installs the adapter gem.
-ADAPTER_GROUPS = {
-  'mysql2'     => 'mysql',
-  'sqlite3'    => 'sqlite',
-  'postgresql' => 'postgresql',
-  'pg'         => 'postgresql',
-}.freeze
-
-def adapter_group(adapter)
-  ADAPTER_GROUPS.fetch(adapter, adapter)
-end

test/application_system_test_case.rb

@@ -25,9 +25,10 @@ class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
     user
   end
 
-  def inject_button_to(after, *button_options)
+  def inject_button_to(inside, *button_options)
     button = button_to *button_options
-    evaluate_script("arguments[0].insertAdjacentHTML('beforeend', '#{button.html_safe}');", after)
+    inside.evaluate_script("this.insertAdjacentHTML('beforeend', arguments[0]);",
+                           button.html_safe)
   end
 
   # Allow skipping interpolations when translating for testing purposes
@@ -55,4 +56,8 @@ class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
     #   find('a[disabled]').click
     # end
   #end
+
+  # TODO: override #test, creating per-adapter test methods running within
+  # #with_connection?
+  # define shards for test database
 end

test/controllers/users_controller_test.rb

@@ -2,7 +2,7 @@ require "test_helper"
 
 class UsersControllerTest < ActionDispatch::IntegrationTest
   setup do
-    @user = users(:one)
+    @user = users(:admin)
   end
 
   test "should get index" do

test/system/users_test.rb

@@ -6,6 +6,7 @@ class UsersTest < ApplicationSystemTestCase
   end
 
   test 'sign in' do
+    byebug
     visit root_url
     assert find_link(href: new_user_session_path)[:disabled]
 
@@ -227,7 +228,8 @@ class UsersTest < ApplicationSystemTestCase
 
     within all(:xpath, "//tbody//tr[not(descendant::select)]").sample do |tr|
       user = User.find_by_email!(first(:link).text)
-      inject_button_to first('td:not(.link)'), "update status", user_path(user), method: :patch,
+      inject_button_to find('td', exact_text: user.status), "update status",
+        user_path(user), method: :patch,
         params: {user: {status: User.statuses.keys.sample}}, data: {turbo: false}
       click_on "update status"
     end
@@ -237,8 +239,8 @@ class UsersTest < ApplicationSystemTestCase
   test 'update status forbidden for non admin' do
     sign_in user: users.reject(&:admin?).select(&:confirmed?).sample
     visit units_path
-    inject_button_to find('body'), "update status", user_path(User.all.sample), method: :patch,
-      params: {user: {status: User.statuses.keys.sample}}
+    inject_button_to find('body'), "update status", user_path(User.all.sample),
+      method: :patch, params: {user: {status: User.statuses.keys.sample}}
     click_on "update status"
     assert_text t('actioncontroller.exceptions.status.forbidden')
   end