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rails--rails/activesupport/test/dependencies_test.rb
2021-04-03 19:24:12 +02:00

121 lines
3.9 KiB
Ruby

# frozen_string_literal: true
require_relative "abstract_unit"
require "pp"
require "active_support/dependencies"
module ModuleWithMissing
mattr_accessor :missing_count
def self.const_missing(name)
self.missing_count += 1
name
end
end
module ModuleWithConstant
InheritedConstant = "Hello"
end
class DependenciesTest < ActiveSupport::TestCase
setup do
@loaded_features_copy = $LOADED_FEATURES.dup
$LOAD_PATH << "test"
end
teardown do
ActiveSupport::Dependencies.clear
$LOADED_FEATURES.replace(@loaded_features_copy)
$LOAD_PATH.pop
end
def test_depend_on_path
expected = assert_raises(LoadError) do
Kernel.require "omgwtfbbq"
end
e = assert_raises(LoadError) do
ActiveSupport::Dependencies.depend_on "omgwtfbbq"
end
assert_equal expected.path, e.path
end
def test_depend_on_message
e = assert_raises(LoadError) do
ActiveSupport::Dependencies.depend_on "omgwtfbbq"
end
assert_equal "No such file to load -- omgwtfbbq.rb", e.message
end
def test_missing_dependency_raises_missing_source_file
assert_raise(LoadError) { require_dependency("missing_service") }
end
def test_smart_name_error_strings
e = assert_raise NameError do
Object.module_eval "ImaginaryObject"
end
assert_includes "uninitialized constant ImaginaryObject", e.message
end
def test_loadable_constants_for_path_should_handle_empty_autoloads
assert_equal [], ActiveSupport::Dependencies.loadable_constants_for_path("hello")
end
def test_qualified_const_defined
assert ActiveSupport::Dependencies.qualified_const_defined?("Object")
assert ActiveSupport::Dependencies.qualified_const_defined?("::Object")
assert ActiveSupport::Dependencies.qualified_const_defined?("::Object::Kernel")
assert ActiveSupport::Dependencies.qualified_const_defined?("::ActiveSupport::TestCase")
end
def test_qualified_const_defined_should_not_call_const_missing
ModuleWithMissing.missing_count = 0
assert_not ActiveSupport::Dependencies.qualified_const_defined?("ModuleWithMissing::A")
assert_equal 0, ModuleWithMissing.missing_count
assert_not ActiveSupport::Dependencies.qualified_const_defined?("ModuleWithMissing::A::B")
assert_equal 0, ModuleWithMissing.missing_count
end
def test_qualified_const_defined_explodes_with_invalid_const_name
assert_raises(NameError) { ActiveSupport::Dependencies.qualified_const_defined?("invalid") }
end
def test_qualified_name_for
assert_equal "A", ActiveSupport::Dependencies.qualified_name_for(Object, :A)
assert_equal "A", ActiveSupport::Dependencies.qualified_name_for(:Object, :A)
assert_equal "A", ActiveSupport::Dependencies.qualified_name_for("Object", :A)
assert_equal "A", ActiveSupport::Dependencies.qualified_name_for("::Object", :A)
assert_equal "ActiveSupport::Dependencies::A", ActiveSupport::Dependencies.qualified_name_for(:'ActiveSupport::Dependencies', :A)
assert_equal "ActiveSupport::Dependencies::A", ActiveSupport::Dependencies.qualified_name_for(ActiveSupport::Dependencies, :A)
end
def test_new_constants_in_with_inherited_constants
m = ActiveSupport::Dependencies.new_constants_in(:Object) do
Object.class_eval { include ModuleWithConstant }
end
assert_equal [], m
end
def test_new_constants_in_with_illegal_module_name_raises_correct_error
assert_raise(NameError) do
ActiveSupport::Dependencies.new_constants_in("Illegal-Name") { }
end
end
def test_hook_called_multiple_times
assert_nothing_raised { ActiveSupport::Dependencies.hook! }
end
def test_load_and_require_stay_private
assert_includes Object.private_methods, :load
assert_includes Object.private_methods, :require
ActiveSupport::Dependencies.unhook!
assert_includes Object.private_methods, :load
assert_includes Object.private_methods, :require
ensure
ActiveSupport::Dependencies.hook!
end
end