diff options
Diffstat (limited to 'jni/ruby/test/rubygems/test_require.rb')
-rw-r--r-- | jni/ruby/test/rubygems/test_require.rb | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/jni/ruby/test/rubygems/test_require.rb b/jni/ruby/test/rubygems/test_require.rb new file mode 100644 index 0000000..dec5285 --- /dev/null +++ b/jni/ruby/test/rubygems/test_require.rb @@ -0,0 +1,275 @@ +require 'rubygems/test_case' +require 'rubygems' + +class TestGemRequire < Gem::TestCase + class Latch + def initialize count = 1 + @count = count + @lock = Monitor.new + @cv = @lock.new_cond + end + + def release + @lock.synchronize do + @count -= 1 if @count > 0 + @cv.broadcast if @count.zero? + end + end + + def await + @lock.synchronize do + @cv.wait_while { @count > 0 } + end + end + end + + def setup + super + + assert_raises LoadError do + save_loaded_features do + require 'test_gem_require_a' + end + end + end + + def assert_require(path) + assert require(path), "'#{path}' was already required" + end + + def append_latch spec + dir = spec.gem_dir + Dir.chdir dir do + spec.files.each do |file| + File.open file, 'a' do |fp| + fp.puts "FILE_ENTERED_LATCH.release" + fp.puts "FILE_EXIT_LATCH.await" + end + end + end + end + + def test_concurrent_require + Object.const_set :FILE_ENTERED_LATCH, Latch.new(2) + Object.const_set :FILE_EXIT_LATCH, Latch.new(1) + + a1 = new_spec "a", "1", nil, "lib/a.rb" + b1 = new_spec "b", "1", nil, "lib/b.rb" + + install_specs a1, b1 + + append_latch a1 + append_latch b1 + + t1 = Thread.new { assert_require 'a' } + t2 = Thread.new { assert_require 'b' } + + # wait until both files are waiting on the exit latch + FILE_ENTERED_LATCH.await + + # now let them finish + FILE_EXIT_LATCH.release + + assert t1.join, "thread 1 should exit" + assert t2.join, "thread 2 should exit" + ensure + Object.send :remove_const, :FILE_ENTERED_LATCH + Object.send :remove_const, :FILE_EXIT_LATCH + end + + def test_require_is_not_lazy_with_exact_req + a1 = new_spec "a", "1", {"b" => "= 1"}, "lib/test_gem_require_a.rb" + b1 = new_spec "b", "1", nil, "lib/b/c.rb" + b2 = new_spec "b", "2", nil, "lib/b/c.rb" + + install_specs a1, b1, b2 + + save_loaded_features do + assert_require 'test_gem_require_a' + assert_equal %w(a-1 b-1), loaded_spec_names + assert_equal unresolved_names, [] + + assert_require "b/c" + assert_equal %w(a-1 b-1), loaded_spec_names + end + end + + def test_require_is_lazy_with_inexact_req + a1 = new_spec "a", "1", {"b" => ">= 1"}, "lib/test_gem_require_a.rb" + b1 = new_spec "b", "1", nil, "lib/b/c.rb" + b2 = new_spec "b", "2", nil, "lib/b/c.rb" + + install_specs a1, b1, b2 + + save_loaded_features do + assert_require 'test_gem_require_a' + assert_equal %w(a-1), loaded_spec_names + assert_equal unresolved_names, ["b (>= 1)"] + + assert_require "b/c" + assert_equal %w(a-1 b-2), loaded_spec_names + end + end + + def test_require_is_not_lazy_with_one_possible + a1 = new_spec "a", "1", {"b" => ">= 1"}, "lib/test_gem_require_a.rb" + b1 = new_spec "b", "1", nil, "lib/b/c.rb" + + install_specs a1, b1 + + save_loaded_features do + assert_require 'test_gem_require_a' + assert_equal %w(a-1 b-1), loaded_spec_names + assert_equal unresolved_names, [] + + assert_require "b/c" + assert_equal %w(a-1 b-1), loaded_spec_names + end + end + + def test_require_can_use_a_pathname_object + a1 = new_spec "a", "1", nil, "lib/test_gem_require_a.rb" + + install_specs a1 + + save_loaded_features do + assert_require Pathname.new 'test_gem_require_a' + assert_equal %w(a-1), loaded_spec_names + assert_equal unresolved_names, [] + end + end + + def test_activate_via_require_respects_loaded_files + require 'benchmark' # stdlib + save_loaded_features do + a1 = new_spec "a", "1", {"b" => ">= 1"}, "lib/test_gem_require_a.rb" + b1 = new_spec "b", "1", nil, "lib/benchmark.rb" + b2 = new_spec "b", "2", nil, "lib/benchmark.rb" + + install_specs a1, b1, b2 + + require 'test_gem_require_a' + assert_equal unresolved_names, ["b (>= 1)"] + + refute require('benchmark'), "benchmark should have already been loaded" + + # We detected that we should activate b-2, so we did so, but + # then original_require decided "I've already got benchmark.rb" loaded. + # This case is fine because our lazy loading is provided exactly + # the same behavior as eager loading would have. + + assert_equal %w(a-1 b-2), loaded_spec_names + end + end + + def test_already_activated_direct_conflict + save_loaded_features do + a1 = new_spec "a", "1", { "b" => "> 0" } + b1 = new_spec "b", "1", { "c" => ">= 1" }, "lib/ib.rb" + b2 = new_spec "b", "2", { "c" => ">= 2" }, "lib/ib.rb" + c1 = new_spec "c", "1", nil, "lib/d.rb" + c2 = new_spec("c", "2", nil, "lib/d.rb") + + install_specs a1, b1, b2, c1, c2 + + a1.activate + c1.activate + assert_equal %w(a-1 c-1), loaded_spec_names + assert_equal ["b (> 0)"], unresolved_names + + assert require("ib") + + assert_equal %w(a-1 b-1 c-1), loaded_spec_names + assert_equal [], unresolved_names + end + end + + def test_multiple_gems_with_the_same_path + save_loaded_features do + a1 = new_spec "a", "1", { "b" => "> 0", "x" => "> 0" } + b1 = new_spec "b", "1", { "c" => ">= 1" }, "lib/ib.rb" + b2 = new_spec "b", "2", { "c" => ">= 2" }, "lib/ib.rb" + x1 = new_spec "x", "1", nil, "lib/ib.rb" + x2 = new_spec "x", "2", nil, "lib/ib.rb" + c1 = new_spec "c", "1", nil, "lib/d.rb" + c2 = new_spec("c", "2", nil, "lib/d.rb") + + install_specs a1, b1, b2, c1, c2, x1, x2 + + a1.activate + c1.activate + assert_equal %w(a-1 c-1), loaded_spec_names + assert_equal ["b (> 0)", "x (> 0)"], unresolved_names + + e = assert_raises(Gem::LoadError) do + require("ib") + end + + assert_equal "ib found in multiple gems: b, x", e.message + end + end + + def test_unable_to_find_good_unresolved_version + save_loaded_features do + a1 = new_spec "a", "1", { "b" => "> 0" } + b1 = new_spec "b", "1", { "c" => ">= 2" }, "lib/ib.rb" + b2 = new_spec "b", "2", { "c" => ">= 3" }, "lib/ib.rb" + + c1 = new_spec "c", "1", nil, "lib/d.rb" + c2 = new_spec "c", "2", nil, "lib/d.rb" + c3 = new_spec "c", "3", nil, "lib/d.rb" + + install_specs a1, b1, b2, c1, c2, c3 + + a1.activate + c1.activate + assert_equal %w(a-1 c-1), loaded_spec_names + assert_equal ["b (> 0)"], unresolved_names + + e = assert_raises(Gem::LoadError) do + require("ib") + end + + assert_equal "unable to find a version of 'b' to activate", e.message + end + end + + def test_default_gem_only + save_loaded_features do + default_gem_spec = new_default_spec("default", "2.0.0.0", + nil, "default/gem.rb") + install_default_specs(default_gem_spec) + assert_require "default/gem" + assert_equal %w(default-2.0.0.0), loaded_spec_names + end + end + + def test_default_gem_and_normal_gem + save_loaded_features do + default_gem_spec = new_default_spec("default", "2.0.0.0", + nil, "default/gem.rb") + install_default_specs(default_gem_spec) + normal_gem_spec = new_spec("default", "3.0", nil, + "lib/default/gem.rb") + install_specs(normal_gem_spec) + assert_require "default/gem" + assert_equal %w(default-3.0), loaded_spec_names + end + end + + def loaded_spec_names + Gem.loaded_specs.values.map(&:full_name).sort + end + + def unresolved_names + Gem::Specification.unresolved_deps.values.map(&:to_s).sort + end + + def save_loaded_features + old_loaded_features = $LOADED_FEATURES.dup + yield + ensure + $LOADED_FEATURES.replace old_loaded_features + end + +end |