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main = self
describe :kernel_load, shared: true do
before :each do
CodeLoadingSpecs.spec_setup
@path = File.expand_path "load_fixture.rb", CODE_LOADING_DIR
end
after :each do
CodeLoadingSpecs.spec_cleanup
end
it "loads a non-extensioned file as a Ruby source file" do
path = File.expand_path "load_fixture", CODE_LOADING_DIR
@object.load(path).should be_true
ScratchPad.recorded.should == [:no_ext]
end
it "loads a non .rb extensioned file as a Ruby source file" do
path = File.expand_path "load_fixture.ext", CODE_LOADING_DIR
@object.load(path).should be_true
ScratchPad.recorded.should == [:no_rb_ext]
end
it "loads from the current working directory" do
Dir.chdir CODE_LOADING_DIR do
@object.load("load_fixture.rb").should be_true
ScratchPad.recorded.should == [:loaded]
end
end
it "loads a file that recursively requires itself" do
path = File.expand_path "recursive_require_fixture.rb", CODE_LOADING_DIR
-> {
@object.load(path).should be_true
}.should complain(/circular require considered harmful/, verbose: true)
ScratchPad.recorded.should == [:loaded, :loaded]
end
it "loads a file that recursively loads itself" do
path = File.expand_path "recursive_load_fixture.rb", CODE_LOADING_DIR
@object.load(path).should be_true
ScratchPad.recorded.should == [:loaded, :loaded]
end
it "loads a file each time the method is called" do
@object.load(@path).should be_true
@object.load(@path).should be_true
ScratchPad.recorded.should == [:loaded, :loaded]
end
it "loads a file even when the name appears in $LOADED_FEATURES" do
$LOADED_FEATURES << @path
@object.load(@path).should be_true
ScratchPad.recorded.should == [:loaded]
end
it "loads a file that has been loaded by #require" do
@object.require(@path).should be_true
@object.load(@path).should be_true
ScratchPad.recorded.should == [:loaded, :loaded]
end
it "loads file even after $LOAD_PATH change" do
$LOAD_PATH << CODE_LOADING_DIR
@object.load("load_fixture.rb").should be_true
$LOAD_PATH.unshift CODE_LOADING_DIR + "/gem"
@object.load("load_fixture.rb").should be_true
ScratchPad.recorded.should == [:loaded, :loaded_gem]
end
it "does not cause #require with the same path to fail" do
@object.load(@path).should be_true
@object.require(@path).should be_true
ScratchPad.recorded.should == [:loaded, :loaded]
end
it "does not add the loaded path to $LOADED_FEATURES" do
saved_loaded_features = $LOADED_FEATURES.dup
@object.load(@path).should be_true
$LOADED_FEATURES.should == saved_loaded_features
end
it "raises a LoadError if passed a non-extensioned path that does not exist but a .rb extensioned path does exist" do
path = File.expand_path "load_ext_fixture", CODE_LOADING_DIR
-> { @object.load(path) }.should raise_error(LoadError)
end
describe "when passed true for 'wrap'" do
it "loads from an existing path" do
path = File.expand_path "wrap_fixture.rb", CODE_LOADING_DIR
@object.load(path, true).should be_true
end
it "sets the enclosing scope to an anonymous module" do
path = File.expand_path "wrap_fixture.rb", CODE_LOADING_DIR
@object.load(path, true)
Object.const_defined?(:LoadSpecWrap).should be_false
wrap_module = ScratchPad.recorded[1]
wrap_module.should be_an_instance_of(Module)
end
it "allows referencing outside namespaces" do
path = File.expand_path "wrap_fixture.rb", CODE_LOADING_DIR
@object.load(path, true)
ScratchPad.recorded[0].should equal(String)
end
it "sets self as a copy of the top-level main" do
path = File.expand_path "wrap_fixture.rb", CODE_LOADING_DIR
@object.load(path, true)
top_level = ScratchPad.recorded[2]
top_level.to_s.should == "main"
top_level.method(:to_s).owner.should == top_level.singleton_class
top_level.should_not equal(main)
top_level.should be_an_instance_of(Object)
end
it "includes modules included in main's singleton class in self's class" do
mod = Module.new
main.extend(mod)
main_ancestors = main.singleton_class.ancestors[1..-1]
main_ancestors.first.should == mod
path = File.expand_path "wrap_fixture.rb", CODE_LOADING_DIR
@object.load(path, true)
top_level = ScratchPad.recorded[2]
top_level_ancestors = top_level.singleton_class.ancestors[-main_ancestors.size..-1]
top_level_ancestors.should == main_ancestors
wrap_module = ScratchPad.recorded[1]
top_level.singleton_class.ancestors.should == [top_level.singleton_class, wrap_module, *main_ancestors]
end
describe "with top-level methods" do
before :each do
path = File.expand_path "load_wrap_method_fixture.rb", CODE_LOADING_DIR
@object.load(path, true)
end
it "allows calling top-level methods" do
ScratchPad.recorded.last.should == :load_wrap_loaded
end
it "does not pollute the receiver" do
-> { @object.send(:top_level_method) }.should raise_error(NameError)
end
end
end
describe "(shell expansion)" do
before :each do
@env_home = ENV["HOME"]
ENV["HOME"] = CODE_LOADING_DIR
end
after :each do
ENV["HOME"] = @env_home
end
it "expands a tilde to the HOME environment variable as the path to load" do
@object.require("~/load_fixture.rb").should be_true
ScratchPad.recorded.should == [:loaded]
end
end
end
|
