From 11f6795b238172c4a13176062bd38b83285799b7 Mon Sep 17 00:00:00 2001 From: Xavier Noria Date: Sat, 29 Oct 2011 18:03:35 -0700 Subject: defines Module#qualified_const_(defined?|get|set) and String#deconstantize This commit also implements a faster version of #demodulize I was unable to isolate with git add --patch. Not a big fan of the name #deconstantize. It complements #demodulize getting rid of the rightmost constant, hence the name, but it is unrelated to the well-known #constantize. So unsure. Could not come with anything better, please feel free to rename. --- .../test/core_ext/module/qualified_const_test.rb | 94 ++++++++++++++++++++++ activesupport/test/core_ext/string_ext_test.rb | 4 + activesupport/test/inflector_test.rb | 12 +++ 3 files changed, 110 insertions(+) create mode 100644 activesupport/test/core_ext/module/qualified_const_test.rb (limited to 'activesupport/test') diff --git a/activesupport/test/core_ext/module/qualified_const_test.rb b/activesupport/test/core_ext/module/qualified_const_test.rb new file mode 100644 index 0000000000..8af0b9a023 --- /dev/null +++ b/activesupport/test/core_ext/module/qualified_const_test.rb @@ -0,0 +1,94 @@ +require 'abstract_unit' +require 'active_support/core_ext/module/qualified_const' + +module QualifiedConstTestMod + X = false + + module M + X = 1 + + class C + X = 2 + end + end + + module N + include M + end +end + +class QualifiedConstTest < ActiveSupport::TestCase + test "Object.qualified_const_defined?" do + assert Object.qualified_const_defined?("QualifiedConstTestMod") + assert !Object.qualified_const_defined?("NonExistingQualifiedConstTestMod") + + assert Object.qualified_const_defined?("QualifiedConstTestMod::X") + assert !Object.qualified_const_defined?("QualifiedConstTestMod::Y") + + assert Object.qualified_const_defined?("QualifiedConstTestMod::M::X") + assert !Object.qualified_const_defined?("QualifiedConstTestMod::M::Y") + + if Module.method(:const_defined?).arity == 1 + assert !Object.qualified_const_defined?("QualifiedConstTestMod::N::X") + else + assert Object.qualified_const_defined?("QualifiedConstTestMod::N::X") + assert !Object.qualified_const_defined?("QualifiedConstTestMod::N::X", false) + assert Object.qualified_const_defined?("QualifiedConstTestMod::N::X", true) + end + end + + test "mod.qualified_const_defined?" do + assert QualifiedConstTestMod.qualified_const_defined?("M") + assert !QualifiedConstTestMod.qualified_const_defined?("NonExistingM") + + assert QualifiedConstTestMod.qualified_const_defined?("M::X") + assert !QualifiedConstTestMod.qualified_const_defined?("M::Y") + + assert QualifiedConstTestMod.qualified_const_defined?("M::C::X") + assert !QualifiedConstTestMod.qualified_const_defined?("M::C::Y") + + if Module.method(:const_defined?).arity == 1 + assert !QualifiedConstTestMod.qualified_const_defined?("QualifiedConstTestMod::N::X") + else + assert QualifiedConstTestMod.qualified_const_defined?("N::X") + assert !QualifiedConstTestMod.qualified_const_defined?("N::X", false) + assert QualifiedConstTestMod.qualified_const_defined?("N::X", true) + end + end + + test "qualified_const_get" do + assert_equal false, Object.qualified_const_get("QualifiedConstTestMod::X") + assert_equal false, QualifiedConstTestMod.qualified_const_get("X") + assert_equal 1, QualifiedConstTestMod.qualified_const_get("M::X") + assert_equal 1, QualifiedConstTestMod.qualified_const_get("N::X") + assert_equal 2, QualifiedConstTestMod.qualified_const_get("M::C::X") + + assert_raise(NameError) { QualifiedConstTestMod.qualified_const_get("M::C::Y")} + end + + test "qualified_const_set" do + m = Module.new + assert_equal m, Object.qualified_const_set("QualifiedConstTestMod2", m) + assert_equal m, ::QualifiedConstTestMod2 + + # We are going to assign to existing constants on purpose, so silence warnings. + silence_warnings do + assert_equal true, QualifiedConstTestMod.qualified_const_set("QualifiedConstTestMod::X", true) + assert_equal true, QualifiedConstTestMod::X + + assert_equal 10, QualifiedConstTestMod::M.qualified_const_set("X", 10) + assert_equal 10, QualifiedConstTestMod::M::X + end + end + + test "reject absolute paths" do + assert_raise(NameError, "wrong constant name ::X") { Object.qualified_const_defined?("::X")} + assert_raise(NameError, "wrong constant name ::X") { Object.qualified_const_defined?("::X::Y")} + + assert_raise(NameError, "wrong constant name ::X") { Object.qualified_const_get("::X")} + assert_raise(NameError, "wrong constant name ::X") { Object.qualified_const_get("::X::Y")} + + assert_raise(NameError, "wrong constant name ::X") { Object.qualified_const_set("::X", nil)} + assert_raise(NameError, "wrong constant name ::X") { Object.qualified_const_set("::X::Y", nil)} + end +end diff --git a/activesupport/test/core_ext/string_ext_test.rb b/activesupport/test/core_ext/string_ext_test.rb index 4d876954cf..ade09efc56 100644 --- a/activesupport/test/core_ext/string_ext_test.rb +++ b/activesupport/test/core_ext/string_ext_test.rb @@ -111,6 +111,10 @@ class StringInflectionsTest < Test::Unit::TestCase assert_equal "Account", "MyApplication::Billing::Account".demodulize end + def test_deconstantize + assert_equal "MyApplication::Billing", "MyApplication::Billing::Account".deconstantize + end + def test_foreign_key ClassNameToForeignKeyWithUnderscore.each do |klass, foreign_key| assert_equal(foreign_key, klass.foreign_key) diff --git a/activesupport/test/inflector_test.rb b/activesupport/test/inflector_test.rb index 7d15b3c7e5..6b7e839e43 100644 --- a/activesupport/test/inflector_test.rb +++ b/activesupport/test/inflector_test.rb @@ -198,6 +198,18 @@ class InflectorTest < Test::Unit::TestCase assert_equal "", ActiveSupport::Inflector.demodulize("") end + def test_deconstantize + assert_equal "MyApplication::Billing", ActiveSupport::Inflector.deconstantize("MyApplication::Billing::Account") + assert_equal "::MyApplication::Billing", ActiveSupport::Inflector.deconstantize("::MyApplication::Billing::Account") + + assert_equal "MyApplication", ActiveSupport::Inflector.deconstantize("MyApplication::Billing") + assert_equal "::MyApplication", ActiveSupport::Inflector.deconstantize("::MyApplication::Billing") + + assert_equal "", ActiveSupport::Inflector.deconstantize("Account") + assert_equal "", ActiveSupport::Inflector.deconstantize("::Account") + assert_equal "", ActiveSupport::Inflector.deconstantize("") + end + def test_foreign_key ClassNameToForeignKeyWithUnderscore.each do |klass, foreign_key| assert_equal(foreign_key, ActiveSupport::Inflector.foreign_key(klass)) -- cgit v1.2.3